Add files using upload-large-folder tool

.gitattributes

@@ -1704,3 +1704,4 @@ parrot/lib/python3.10/site-packages/scipy/cluster/_hierarchy.cpython-310-x86_64-
 parrot/lib/python3.10/site-packages/scipy/stats/_ansari_swilk_statistics.cpython-310-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text
 parrot/lib/python3.10/site-packages/scipy/special/_test_internal.cpython-310-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text
 vllm/lib/python3.10/site-packages/mpl_toolkits/mplot3d/__pycache__/axes3d.cpython-310.pyc filter=lfs diff=lfs merge=lfs -text
+valley/lib/python3.10/site-packages/nvidia/nccl/lib/libnccl.so.2 filter=lfs diff=lfs merge=lfs -text

valley/lib/python3.10/site-packages/nvidia/nccl/lib/libnccl.so.2

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8278dcc6632df94762737b1c930050075738affba25e73cb1cac1b448472dc06
+size 232685936

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/FileStore.hpp

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <sys/types.h>
+
+#include <mutex>
+#include <unordered_map>
+
+#include <torch/csrc/distributed/c10d/Store.hpp>
+
+namespace c10d {
+
+class TORCH_API FileStore : public Store {
+ public:
+  explicit FileStore(std::string path, int numWorkers);
+
+  ~FileStore() override;
+
+  void set(const std::string& key, const std::vector<uint8_t>& value) override;
+
+  std::vector<uint8_t> compareSet(
+      const std::string& key,
+      const std::vector<uint8_t>& expectedValue,
+      const std::vector<uint8_t>& desiredValue) override;
+
+  std::vector<uint8_t> get(const std::string& key) override;
+
+  int64_t add(const std::string& key, int64_t value) override;
+
+  int64_t getNumKeys() override;
+
+  bool deleteKey(const std::string& key) override;
+
+  bool check(const std::vector<std::string>& keys) override;
+
+  void wait(const std::vector<std::string>& keys) override;
+
+  void wait(
+      const std::vector<std::string>& keys,
+      const std::chrono::milliseconds& timeout) override;
+
+  // Returns the path used by the FileStore.
+  const std::string& getPath() const noexcept {
+    return path_;
+  }
+
+ protected:
+  int64_t addHelper(const std::string& key, int64_t i);
+
+  std::string path_;
+  off_t pos_{0};
+
+  int numWorkers_;
+  const std::string cleanupKey_;
+  const std::string refCountKey_;
+  const std::string regularPrefix_;
+  const std::string deletePrefix_;
+
+  std::unordered_map<std::string, std::vector<uint8_t>> cache_;
+
+  std::mutex activeFileOpLock_;
+};
+
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/GlooDeviceFactory.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#ifdef USE_C10D_GLOO
+
+#include <string>
+
+#include <c10/util/Registry.h>
+#include <gloo/config.h>
+#include <gloo/transport/device.h>
+
+namespace c10d {
+
+class TORCH_API GlooDeviceFactory {
+ public:
+  // Create new device instance for specific interface.
+  static std::shared_ptr<::gloo::transport::Device> makeDeviceForInterface(
+      const std::string& interface);
+
+  // Create new device instance for specific hostname or address.
+  static std::shared_ptr<::gloo::transport::Device> makeDeviceForHostname(
+      const std::string& hostname);
+};
+
+TORCH_DECLARE_SHARED_REGISTRY(
+    GlooDeviceRegistry,
+    ::gloo::transport::Device,
+    const std::string&, /* interface */
+    const std::string& /* hostname */);
+
+} // namespace c10d
+
+#endif // USE_C10D_GLOO

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/NCCLUtils.hpp

@@ -0,0 +1,473 @@
+#pragma once
+
+#ifdef USE_C10D_NCCL
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <memory>
+#include <mutex>
+
+#include <c10/util/Exception.h>
+#include <c10/util/Optional.h>
+#include <nccl.h>
+
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 14)
+#define NCCL_HAS_COMM_NONBLOCKING
+#endif
+
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 18)
+#define NCCL_HAS_COMM_SPLIT
+#endif
+
+// ncclGetLastError() is enabled only for NCCL versions 2.13+
+// ncclRemoteError only exists in NCCL versions 2.13+
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 13)
+#define ENABLE_NCCL_GET_LAST_ERROR
+#define NCCL_REMOTE_ERROR
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define ENABLE_NCCL_GET_LAST_ERROR
+#define NCCL_REMOTE_ERROR
+#endif
+
+// Error checking is enabled only for NCCL versions 2.4+ since ncclCommAbort()
+// and ncclCommGetAsyncError() are not supported in earlier versions.
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 4)
+#define ENABLE_NCCL_ERROR_CHECKING
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define ENABLE_NCCL_ERROR_CHECKING
+#endif
+
+// P2P is enabled only for NCCL versions 2.7+ since ncclSend()
+// and ncclRecv() are not supported in earlier versions.
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 7)
+#define ENABLE_NCCL_P2P_SUPPORT
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define ENABLE_NCCL_P2P_SUPPORT
+#endif
+
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 11)
+#define ENABLE_NCCL_PREMUL_SUM_SUPPORT
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define ENABLE_NCCL_PREMUL_SUM_SUPPORT
+#endif
+
+#if defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+    (NCCL_MINOR >= 17)
+#define NCCL_HAS_COMM_CTA_CGA
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define NCCL_HAS_COMM_CTA_CGA
+#endif
+
+#if defined(NCCL_REGISTRATION_SUPPORTED) ||                              \
+    ((defined(NCCL_MAJOR) && (NCCL_MAJOR == 2) && defined(NCCL_MINOR) && \
+      (NCCL_MINOR >= 19)))
+#define NCCL_HAS_COMM_REGISTER
+#elif defined(NCCL_MAJOR) && (NCCL_MAJOR >= 3)
+#define NCCL_HAS_COMM_REGISTER
+#endif
+
+// Macro to throw on a non-successful NCCL return value.
+#define C10D_NCCL_CHECK(cmd, failureReason)                                   \
+  do {                                                                        \
+    ncclResult_t result = cmd;                                                \
+    if (result != ncclSuccess) {                                              \
+      std::string err = "NCCL error in: " + std::string(__FILE__) + ":" +     \
+          std::to_string(__LINE__) + ", " + ncclGetErrorWithVersion(result) + \
+          "\n" + getNcclErrorDetailStr(result, failureReason);                \
+      TORCH_CHECK_WITH(DistBackendError, false, err);                         \
+    }                                                                         \
+  } while (0)
+
+// Macro to throw on a non-successful NCCL return value, non-blocking.
+#define C10D_NCCL_CHECK_TIMEOUT(cmd, comm, failureReason)                     \
+  ncclResult_t result = cmd;                                                  \
+  auto startTimepoint = std::chrono::steady_clock::now();                     \
+  while (result == ncclInProgress) {                                          \
+    if (nccl_nonblocking_timeout() > 0) {                                     \
+      auto currentTimepoint = std::chrono::steady_clock::now();               \
+      auto timeElapsed = std::chrono::duration_cast<std::chrono::seconds>(    \
+                             currentTimepoint - startTimepoint)               \
+                             .count();                                        \
+      if (timeElapsed > nccl_nonblocking_timeout()) {                         \
+        std::string err = "NCCL timeout in: " + std::string(__FILE__) + ":" + \
+            std::to_string(__LINE__) + ", " +                                 \
+            ncclGetErrorWithVersion(result) + "\n" +                          \
+            getNcclErrorDetailStr(result, failureReason);                     \
+        TORCH_CHECK_WITH(DistBackendError, false, err);                       \
+      }                                                                       \
+    }                                                                         \
+    ncclCommGetAsyncError(comm, &result);                                     \
+  }                                                                           \
+  if (result != ncclSuccess) {                                                \
+    std::string err = "NCCL error in: " + std::string(__FILE__) + ":" +       \
+        std::to_string(__LINE__) + ", " + ncclGetErrorWithVersion(result) +   \
+        "\n" + getNcclErrorDetailStr(result, failureReason);                  \
+    TORCH_CHECK_WITH(DistBackendError, false, err);                           \
+  }
+
+#define C10D_NCCL_CHECK_TIMEOUT_GROUPEND(cmd, comms_, failureReason)           \
+  ncclResult_t state = cmd;                                                    \
+  auto startTimepoint = std::chrono::steady_clock::now();                      \
+  if (state == ncclInProgress) {                                               \
+    for (const auto i : c10::irange(comms_.size())) {                          \
+      do {                                                                     \
+        if (nccl_nonblocking_timeout() > 0) {                                  \
+          auto currentTimepoint = std::chrono::steady_clock::now();            \
+          auto timeElapsed = std::chrono::duration_cast<std::chrono::seconds>( \
+                                 currentTimepoint - startTimepoint)            \
+                                 .count();                                     \
+          if (timeElapsed > nccl_nonblocking_timeout()) {                      \
+            std::string err = "NCCL timeout in: " + std::string(__FILE__) +    \
+                ":" + std::to_string(__LINE__) + ", " +                        \
+                ncclGetErrorWithVersion(state) + "\n" +                        \
+                getNcclErrorDetailStr(state, failureReason);                   \
+            TORCH_CHECK_WITH(DistBackendError, false, err);                    \
+          }                                                                    \
+        }                                                                      \
+        ncclCommGetAsyncError(comms_[i]->getNcclComm(), &state);               \
+      } while (state == ncclInProgress);                                       \
+      if (state != ncclSuccess) {                                              \
+        break; /* fall through to failed case */                               \
+      }                                                                        \
+    }                                                                          \
+  }                                                                            \
+  if (state != ncclSuccess) {                                                  \
+    std::string err = "NCCL error in: " + std::string(__FILE__) + ":" +        \
+        std::to_string(__LINE__) + ", " + ncclGetErrorWithVersion(state) +     \
+        "\n" + getNcclErrorDetailStr(state, failureReason);                    \
+    TORCH_CHECK_WITH(DistBackendError, false, err);                            \
+  }
+
+// Macro to print and abort on a non-successful NCCL return value.
+#define C10D_NCCL_ASSERT(cmd)                            \
+  do {                                                   \
+    ncclResult_t result = cmd;                           \
+    if (result != ncclSuccess) {                         \
+      std::string err = ncclGetErrorWithVersion(result); \
+      fprintf(                                           \
+          stderr,                                        \
+          "NCCL error in: %s:%d, %s\n",                  \
+          __FILE__,                                      \
+          __LINE__,                                      \
+          err.c_str());                                  \
+      abort();                                           \
+    }                                                    \
+  } while (0)
+
+namespace c10d {
+
+std::string getNcclVersion();
+std::string ncclGetErrorWithVersion(ncclResult_t error);
+bool nccl_use_nonblocking();
+int nccl_nonblocking_timeout();
+
+// Provides additional detail into NCCL error codes based on when these are
+// thrown in the NCCL codebase.
+std::string getNcclErrorDetailStr(
+    ncclResult_t error,
+    c10::optional<std::string> processGroupFailureReason = c10::nullopt);
+
+// Write NCCL debug info to local disk or any storage users define.
+class TORCH_API DebugInfoWriter {
+ public:
+  DebugInfoWriter(int rank);
+  virtual ~DebugInfoWriter();
+  virtual void write(const std::string& ncclTrace);
+
+ protected:
+  std::string filename_;
+};
+
+// RAII wrapper for NCCL communicator
+class NCCLComm {
+ public:
+  explicit NCCLComm(ncclComm_t ncclComm)
+      : ncclComm_(ncclComm),
+        aborted_(false),
+        ncclAsyncErr_(ncclSuccess),
+        commFailureReason_(c10::nullopt) {}
+
+  NCCLComm() : NCCLComm(nullptr) {}
+
+  ~NCCLComm() noexcept {
+    // Add lock in this destructor, as aborted_ needs to be read after memory
+    // barrier here.
+    std::unique_lock<std::mutex> lock(mutex_);
+    if (ncclComm_ && !aborted_) {
+#ifdef ENABLE_NCCL_ERROR_CHECKING
+      // Use ncclCommAbort instead of ncclCommDestroy here since
+      // ncclCommDestroy could block forever waiting for work to complete on
+      // the communicator.
+      C10D_NCCL_ASSERT(::ncclCommAbort(ncclComm_));
+#else
+      C10D_NCCL_ASSERT(::ncclCommDestroy(ncclComm_));
+#endif
+    }
+  }
+
+  static std::shared_ptr<NCCLComm> create(
+      int numRanks,
+      int rank,
+      ncclUniqueId commId) {
+    auto comm = std::make_shared<NCCLComm>();
+    C10D_NCCL_CHECK(
+        ncclCommInitRank(&(comm->ncclComm_), numRanks, commId, rank),
+        c10::nullopt);
+    comm->ncclId_ = commId;
+    comm->rank_ = rank;
+    return comm;
+  }
+
+#ifdef NCCL_HAS_COMM_NONBLOCKING
+  static std::shared_ptr<NCCLComm> create(
+      int numRanks,
+      int rank,
+      ncclUniqueId commId,
+      ncclConfig_t& config) {
+    auto comm = std::make_shared<NCCLComm>();
+    if (nccl_use_nonblocking()) {
+      config.blocking = 0;
+      C10D_NCCL_CHECK_TIMEOUT(
+          ncclCommInitRankConfig(
+              &(comm->ncclComm_), numRanks, commId, rank, &config),
+          comm->ncclComm_,
+          c10::nullopt);
+    } else {
+      C10D_NCCL_CHECK(
+          ncclCommInitRankConfig(
+              &(comm->ncclComm_), numRanks, commId, rank, &config),
+          c10::nullopt);
+    }
+    comm->ncclId_ = commId;
+    comm->rank_ = rank;
+    return comm;
+  }
+#endif
+
+#ifdef NCCL_HAS_COMM_SPLIT
+  static std::shared_ptr<NCCLComm> split(
+      NCCLComm* source,
+      int color_id,
+      int rank,
+      ncclConfig_t& config) {
+    auto comm = std::make_shared<NCCLComm>();
+    C10D_NCCL_CHECK(
+        ncclCommSplit(
+            source->ncclComm_, color_id, rank, &(comm->ncclComm_), &config),
+        c10::nullopt);
+    ++source->ncclCommSplitCounter_;
+    return comm;
+  }
+#endif
+
+  ncclUniqueId getNcclId() {
+    return ncclId_;
+  }
+
+  // Must not be copyable
+  NCCLComm(const NCCLComm&) = delete;
+  NCCLComm& operator=(const NCCLComm&) = delete;
+
+  // Do not support move assignment as there is no valid use case
+  NCCLComm& operator=(NCCLComm&& other) = delete;
+
+  // Move constructable
+  NCCLComm(NCCLComm&& other) {
+    // Using other's lock, as it reads other's states
+    // Can not use this.mutex_, as this object is being constructed.
+    std::unique_lock<std::mutex> lock(other.mutex_);
+    std::swap(ncclComm_, other.ncclComm_);
+    std::swap(aborted_, other.aborted_);
+    std::swap(ncclAsyncErr_, other.ncclAsyncErr_);
+  }
+
+  ncclComm_t getNcclComm();
+
+  c10::optional<std::string> getNcclCommFailureReason() const {
+    std::unique_lock<std::mutex> lock(mutex_);
+    return commFailureReason_;
+  }
+
+  void ncclCommAbort(
+      c10::optional<std::string> commFailureReason = c10::nullopt) {
+    std::unique_lock<std::mutex> lock(mutex_);
+#ifdef ENABLE_NCCL_ERROR_CHECKING
+    if (aborted_) {
+      // Should not abort twice.
+      return;
+    }
+
+#ifdef NCCL_HAS_COMM_REGISTER
+    // Deregister all registered segments before aborting.
+    for (auto& it : registeredSegmentHandles_) {
+      void* handle = it.second;
+      C10D_NCCL_CHECK(
+          ::ncclCommDeregister(ncclComm_, handle),
+          c10::str(
+              "Failed to deregister segment handle ",
+              handle,
+              " on ncclComm_ ",
+              ncclComm_));
+    }
+    registeredSegmentHandles_.clear();
+#endif
+
+    // Set true failure reason if provided by ProcessGroupNCCL (e.g. work
+    // timeout)
+    commFailureReason_ = commFailureReason;
+#ifndef NCCL_HAS_COMM_NONBLOCKING
+    C10D_NCCL_CHECK(::ncclCommAbort(ncclComm_), commFailureReason_);
+#else
+    C10D_NCCL_CHECK_TIMEOUT(
+        ::ncclCommAbort(ncclComm_), ncclComm_, commFailureReason_);
+#endif
+    aborted_ = true;
+    ncclComm_ = nullptr;
+
+    // Set an appropriate error so that we avoid using the communicator.
+    if (ncclAsyncErr_ == ncclSuccess) {
+      ncclAsyncErr_ = ncclSystemError;
+    }
+#else
+    // This is a NOOP, if error checks are disabled.
+    return;
+#endif
+  }
+
+  bool isAborted() const {
+    std::unique_lock<std::mutex> lock(mutex_);
+    return aborted_;
+  }
+
+  uint64_t getCommSplitCounter() const {
+    return ncclCommSplitCounter_;
+  }
+
+  ncclResult_t checkForNcclError() {
+    std::unique_lock<std::mutex> lock(mutex_);
+#ifdef ENABLE_NCCL_ERROR_CHECKING
+    if (ncclAsyncErr_ != ncclSuccess) {
+      return ncclAsyncErr_;
+    }
+    C10D_NCCL_CHECK(
+        ncclCommGetAsyncError(ncclComm_, &ncclAsyncErr_), commFailureReason_);
+    return ncclAsyncErr_;
+#else
+    // Always return success, if error checks are disabled.
+    return ncclSuccess;
+#endif
+  }
+
+  ncclResult_t registerSegment(void* ptr, size_t size) {
+    std::unique_lock<std::mutex> lock(mutex_);
+#ifdef NCCL_HAS_COMM_REGISTER
+    // We register only segments from cache allocator
+    // which are guaranteed to be with disjoint addr ranges. Thus, a ptr always
+    // maps to a unique handle and should not be registered before the current
+    // ptr is deregistered and freed.
+    TORCH_CHECK(
+        registeredSegmentHandles_.count(ptr) == 0,
+        "Segment with ptr ",
+        ptr,
+        " has already been registered on ncclComm_ ",
+        ncclComm_);
+
+    void* handle;
+    C10D_NCCL_CHECK(
+        ncclCommRegister(ncclComm_, ptr, size, &handle),
+        c10::str(
+            "Failed to register segment with ptr ",
+            ptr,
+            ", size ",
+            size,
+            " on ncclComm_ ",
+            ncclComm_));
+    registeredSegmentHandles_[ptr] = handle;
+    return ncclSuccess;
+#else
+    return ncclInvalidUsage;
+#endif
+  }
+
+  ncclResult_t deregisterSegment(void* ptr) {
+    std::unique_lock<std::mutex> lock(mutex_);
+#ifdef NCCL_HAS_COMM_REGISTER
+    TORCH_CHECK(
+        registeredSegmentHandles_.count(ptr) == 1,
+        "Segment with ptr ",
+        ptr,
+        " is not registered on ncclComm_ ",
+        ncclComm_);
+
+    void* handle = registeredSegmentHandles_[ptr];
+    C10D_NCCL_CHECK(
+        ncclCommDeregister(ncclComm_, handle),
+        c10::str(
+            "Failed to deregister segment handle ",
+            handle,
+            " on ncclComm_ ",
+            ncclComm_));
+    registeredSegmentHandles_.erase(ptr);
+    return ncclSuccess;
+#else
+    return ncclInvalidUsage;
+#endif
+  }
+
+ protected:
+  ncclComm_t ncclComm_;
+  // Unique nccl_id for this communicator.
+  ncclUniqueId ncclId_;
+  bool aborted_;
+  uint64_t ncclCommSplitCounter_{0};
+  ncclResult_t ncclAsyncErr_;
+  mutable std::mutex mutex_;
+  // Rank that this communicator corresponds to.
+  int rank_;
+  // Optional reason for communicator failure, provided by ProcessGroupNCCL for
+  // better error messaging.
+  c10::optional<std::string> commFailureReason_;
+#ifdef NCCL_HAS_COMM_REGISTER
+  // Stores handlers for tensors registered by NCCL
+  std::unordered_map<void*, void*> registeredSegmentHandles_;
+#endif
+};
+
+// Helper that automatically cleans up premul sums.
+struct ncclRedOpRAII {
+  ncclRedOpRAII() = default;
+  ncclRedOpRAII(ncclRedOp_t op) : op_(op) {}
+  ncclRedOpRAII(ncclRedOp_t op, ncclComm_t comm)
+      : op_(op), comm_(comm), premul_sum_(true) {}
+  ncclRedOpRAII(const ncclRedOpRAII&) = delete;
+  ncclRedOpRAII& operator=(const ncclRedOpRAII&) = delete;
+  ncclRedOpRAII(ncclRedOpRAII&& tmp) : ncclRedOpRAII() {
+    std::swap(tmp.op_, this->op_);
+    std::swap(tmp.comm_, this->comm_);
+    std::swap(tmp.premul_sum_, this->premul_sum_);
+  }
+#if defined(ENABLE_NCCL_PREMUL_SUM_SUPPORT)
+  ~ncclRedOpRAII() {
+    if (premul_sum_) {
+      ncclRedOpDestroy(op_, comm_);
+    }
+  }
+#endif
+  operator ncclRedOp_t() const {
+    return op_;
+  }
+  ncclRedOp_t op_;
+  ncclComm_t comm_;
+  bool premul_sum_ = false;
+};
+
+} // namespace c10d
+
+#endif // USE_C10D_NCCL

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/ProcessGroup.hpp

@@ -0,0 +1,721 @@
+#pragma once
+
+#include <torch/csrc/distributed/c10d/Backend.hpp>
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <stdexcept>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+
+#include <ATen/ATen.h>
+#include <ATen/core/dispatch/Dispatcher.h>
+#include <c10/macros/Macros.h>
+
+#include <torch/csrc/distributed/c10d/Work.hpp>
+// *************************************************************************
+// PROCESS GROUP collective communication API IS BEING CHANGED BETWEEN
+// versions 1.7 and 1.8.
+// PLEASE DO NOT ADD ANY DEPENDENCIES.
+// SEE RFC: https://github.com/pytorch/pytorch/issues/39662
+// *************************************************************************
+
+constexpr auto kProcessGroupDefaultTimeout =
+    std::chrono::milliseconds(30 * 60 * 1000);
+
+namespace c10d {
+
+// ProcessGroup is a base class that captures collective and point to
+// point communication in a fixed set of processes.
+//
+// The functions specified in the class below describe the API alone;
+// implementations are provided in subclasses.
+//
+// Every function that performs I/O is executed asynchronously by a
+// thread pool owned by the ProcessGroup (by default). They return an
+// object that can be used to wait for completion or error.
+//
+// The ProcessGroup can instantiate subgroups with fewer or an equal
+// number of members. Implementations must take care that multiple
+// process groups can be used in parallel and synchronize accordingly.
+//
+// The ProcessGroup assumes a fixed set of processes. If the set
+// changes, existing instances must be destructed and instantiation
+// and initialization must start from scratch. For members of the
+// process group to find each other (referred to as rendezvous from
+// hereon)
+//
+class TORCH_API ProcessGroup : public torch::CustomClassHolder {
+ public:
+  // ProcessGroup Options is a base struct that defines the basic options
+  // when constructing a ProcessGroup. Each ProcessGroup subclass should
+  // extend this struct and define its options if it wants to provide more
+  // config options (beyond basic ones defined here) to end user.
+  struct TORCH_API Options : torch::CustomClassHolder {
+    explicit Options(
+        std::string backend,
+        std::chrono::milliseconds timeout = kProcessGroupDefaultTimeout)
+        : timeout(timeout), backend(std::move(backend)) {}
+    ~Options() override = default;
+
+    std::chrono::milliseconds timeout;
+
+    // backend name
+    const std::string backend;
+  };
+
+  enum BackendType {
+    UNDEFINED = 0,
+    GLOO = 1,
+    NCCL = 2,
+    UCC = 3,
+    MPI = 4,
+    CUSTOM = 5,
+  };
+
+  // Not used, set for backwards compatibility and only used for TypeDef in
+  // Ops.cpp
+  explicit ProcessGroup(int rank, int size);
+
+  explicit ProcessGroup(
+      const c10::intrusive_ptr<::c10d::Store>& store,
+      int rank,
+      int size,
+      c10::intrusive_ptr<Options> options);
+  ~ProcessGroup() override;
+
+  int getRank() const {
+    return rank_;
+  }
+
+  int getSize() const {
+    return size_;
+  }
+
+  // Returns an unique opaque ID of this process group object.
+  int64_t getID() const {
+    return reinterpret_cast<std::intptr_t>(this);
+  }
+
+  // Returns an unique opaque ID of a backend for the specific backend type
+  // that can correlate with this process group's collectives.
+  int64_t getBackendID(BackendType backend_type) const {
+    return reinterpret_cast<std::intptr_t>(getBackend(backend_type).get());
+  }
+
+  virtual const std::string getBackendName() const {
+    return options_->backend;
+  };
+
+  BackendType getBackendType() const {
+    return backendType_;
+  };
+
+  virtual void startCoalescing(c10::DeviceType deviceType) {
+    // only nccl has implemented startCoalescing so only execute for nccl
+    // backends
+    auto backend = getBackend(deviceType);
+    backend->startCoalescing();
+  }
+
+  virtual c10::intrusive_ptr<Work> endCoalescing(c10::DeviceType deviceType) {
+    // only nccl has implemented endCoalescing so only execute for nccl
+    // backends
+    auto backend = getBackend(deviceType);
+    auto work = backend->endCoalescing();
+    return work;
+  }
+
+  virtual c10::intrusive_ptr<Work> broadcast(
+      std::vector<at::Tensor>& tensors,
+      const BroadcastOptions& opts = BroadcastOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::broadcast_", "")
+            .typed<
+                std::tuple<std::vector<at::Tensor>, c10::intrusive_ptr<Work>>(
+                    at::TensorList,
+                    const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                    int64_t,
+                    int64_t,
+                    bool,
+                    int64_t)>();
+    // It's awakward to unbox the opts here and box them again in the custom C++
+    // op. But it's also complicated to make opts as a CustomClassHolder. Leave
+    // it as it is now.
+    return std::get<1>(op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.rootRank,
+        opts.rootTensor,
+        opts.asyncOp,
+        opts.timeout.count()));
+  }
+
+  virtual c10::intrusive_ptr<Work> allreduce(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceOptions& opts = AllreduceOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::allreduce_", "")
+            .typed<
+                std::tuple<std::vector<at::Tensor>, c10::intrusive_ptr<Work>>(
+                    at::TensorList,
+                    const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                    const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                    const c10::optional<at::Tensor>& sparse_indices,
+                    int64_t)>();
+
+    return std::get<1>(op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<ReduceOp>(opts.reduceOp),
+        opts.sparseIndices,
+        opts.timeout.count()));
+  }
+
+  virtual c10::intrusive_ptr<Work> allreduce_coalesced(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceCoalescedOptions& opts = AllreduceCoalescedOptions()) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::allreduce_coalesced_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                             int64_t)>();
+
+    return op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<ReduceOp>(opts.reduceOp),
+        opts.timeout.count());
+  }
+
+  virtual c10::intrusive_ptr<Work> reduce(
+      std::vector<at::Tensor>& tensors,
+      const ReduceOptions& opts = ReduceOptions()) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::reduce_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                             int64_t,
+                             int64_t,
+                             int64_t)>();
+    return op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<ReduceOp>(opts.reduceOp),
+        opts.rootRank,
+        opts.rootTensor,
+        opts.timeout.count());
+  }
+
+  virtual c10::intrusive_ptr<Work> allgather(
+      std::vector<std::vector<at::Tensor>>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::allgather_", "")
+                         .typed<std::tuple<
+                             std::vector<std::vector<at::Tensor>>,
+                             c10::intrusive_ptr<Work>>(
+                             const std::vector<std::vector<at::Tensor>>&,
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             int64_t)>();
+
+    return std::get<1>(op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.timeout.count()));
+  }
+
+  // Gathers a single tensor inputBuffer into a single buffer outputBuffer that
+  // is interpreted as a contiguous collection of size inputBuffer * WORLD_SIZE.
+  // For implementers of ProcessGroup API and advanced users only.
+  // Note: this function will be deprecated in near future.
+  virtual c10::intrusive_ptr<Work> _allgather_base(
+      at::Tensor& outputBuffer,
+      at::Tensor& inputBuffer,
+      const AllgatherOptions& opts = AllgatherOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::_allgather_base_", "")
+            .typed<std::tuple<at::Tensor, c10::intrusive_ptr<Work>>(
+                at::Tensor&,
+                at::Tensor&,
+                const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                bool,
+                int64_t)>();
+
+    return std::get<1>(op.call(
+        outputBuffer,
+        inputBuffer,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.asyncOp,
+        opts.timeout.count()));
+  }
+
+  // This function is deprecated and will be moved out of ProcessGroup to comms:
+  // * do not add dependencies on this function,
+  // * do not implement it in your ProcessGroup, implement _allgather_base
+  //   instead.
+  virtual c10::intrusive_ptr<Work> allgather_coalesced(
+      std::vector<std::vector<at::Tensor>>& outputTensorLists,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::allgather_coalesced_", "")
+            .typed<c10::intrusive_ptr<Work>(
+                const std::vector<std::vector<at::Tensor>>&,
+                const at::TensorList&,
+                const c10::intrusive_ptr<::c10d::ProcessGroup>&)>();
+
+    return op.call(
+        outputTensorLists,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this));
+  }
+
+  // This function is a coalesced version of `allgather_into_tensor` (currently
+  // still named as `_allgather_base`). Each tensor in the vector corresponds to
+  // an input/output of one `allgather_into_tensor` operation.
+  virtual c10::intrusive_ptr<Work> allgather_into_tensor_coalesced(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::allgather_into_tensor_coalesced_", "")
+            .typed<c10::intrusive_ptr<Work>(
+                const at::TensorList,
+                const at::TensorList,
+                const c10::intrusive_ptr<::c10d::ProcessGroup>&)>();
+
+    return op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this));
+  }
+
+  virtual c10::intrusive_ptr<Work> gather(
+      std::vector<std::vector<at::Tensor>>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const GatherOptions& opts = GatherOptions()) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::gather_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             const std::vector<std::vector<at::Tensor>>&,
+                             const at::TensorList&,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             int64_t,
+                             int64_t)>();
+    return op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.rootRank,
+        opts.timeout.count());
+  }
+
+  virtual c10::intrusive_ptr<Work> scatter(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<std::vector<at::Tensor>>& inputTensors,
+      const ScatterOptions& opts = ScatterOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::scatter_", "")
+            .typed<
+                std::tuple<std::vector<at::Tensor>, c10::intrusive_ptr<Work>>(
+                    const at::TensorList&,
+                    const std::vector<std::vector<at::Tensor>>&,
+                    const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                    int64_t,
+                    bool,
+                    int64_t)>();
+    return std::get<1>(op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.rootRank,
+        opts.asyncOp,
+        opts.timeout.count()));
+  }
+
+  virtual c10::intrusive_ptr<Work> reduce_scatter(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<std::vector<at::Tensor>>& inputTensors,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::reduce_scatter_", "")
+            .typed<
+                std::tuple<std::vector<at::Tensor>, c10::intrusive_ptr<Work>>(
+                    const at::TensorList&,
+                    const std::vector<std::vector<at::Tensor>>&,
+                    const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                    const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                    int64_t)>();
+    return std::get<1>(op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<::c10d::ReduceOp>(opts.reduceOp),
+        opts.timeout.count()));
+  }
+
+  virtual c10::intrusive_ptr<Work> _reduce_scatter_base(
+      at::Tensor& outputBuffer,
+      at::Tensor& inputBuffer,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::_reduce_scatter_base_", "")
+            .typed<std::tuple<at::Tensor, c10::intrusive_ptr<Work>>(
+                at::Tensor&,
+                at::Tensor&,
+                const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                bool,
+                int64_t)>();
+    return std::get<1>(op.call(
+        outputBuffer,
+        inputBuffer,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<::c10d::ReduceOp>(opts.reduceOp),
+        opts.asyncOp,
+        opts.timeout.count()));
+  }
+
+  // This function is a coalesced version of `reduce_scatter_tensor` (currently
+  // still named as `_reduce_scatter_base`). Each tensor in the vector
+  // corresponds to an input/output of one `reduce_scatter_tensor` operation.
+  virtual c10::intrusive_ptr<Work> reduce_scatter_tensor_coalesced(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::reduce_scatter_tensor_coalesced_", "")
+            .typed<c10::intrusive_ptr<Work>(
+                const at::TensorList,
+                const at::TensorList,
+                const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                const c10::intrusive_ptr<::c10d::ReduceOp>&,
+                int64_t)>();
+
+    return op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        c10::make_intrusive<::c10d::ReduceOp>(opts.reduceOp),
+        opts.timeout.count());
+  }
+
+  virtual c10::intrusive_ptr<Work> alltoall_base(
+      at::Tensor& outputBuffer,
+      at::Tensor& inputBuffer,
+      std::vector<int64_t>& outputSplitSizes,
+      std::vector<int64_t>& inputSplitSizes,
+      const AllToAllOptions& opts = AllToAllOptions()) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::alltoall_base_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::Tensor&,
+                             at::Tensor&,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             std::vector<int64_t>,
+                             std::vector<int64_t>,
+                             int64_t)>();
+    return op.call(
+        outputBuffer,
+        inputBuffer,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        outputSplitSizes,
+        inputSplitSizes,
+        opts.timeout.count());
+  }
+
+  virtual c10::intrusive_ptr<Work> alltoall(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllToAllOptions& opts = AllToAllOptions()) {
+    static auto op =
+        c10::Dispatcher::singleton()
+            .findSchemaOrThrow("c10d::alltoall_", "")
+            .typed<
+                std::tuple<std::vector<at::Tensor>, c10::intrusive_ptr<Work>>(
+                    const at::TensorList&,
+                    const at::TensorList&,
+                    const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                    int64_t)>();
+    return std::get<1>(op.call(
+        outputTensors,
+        inputTensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.timeout.count()));
+  }
+
+  virtual void monitoredBarrier(
+      const BarrierOptions& opts,
+      bool wait_all_ranks = false) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::monitored_barrier_", "")
+                         .typed<void(
+                             at::Tensor,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             const std::vector<int64_t>&,
+                             int64_t,
+                             bool)>();
+    // Default to using cpu implementation, monitored barrier is only for GLOO
+    at::Tensor tensor = at::empty({0}, at::TensorOptions().device(at::kCPU));
+    op.call(
+        tensor,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.device_ids,
+        opts.timeout.count(),
+        wait_all_ranks);
+  }
+
+  // Agrees on an initial sequence number for the whole group by having rank 0
+  // create it and broadcast it to other ranks using the store. Only implemented
+  // for GLOO and NCCL backends currently.
+  virtual void setSequenceNumberForGroup() {
+    auto backendType = getBackendType();
+    // TODO: HACK for backend name to get sequence number for that backend.
+    if (backendType == ProcessGroup::BackendType::GLOO ||
+        backendType == ProcessGroup::BackendType::NCCL ||
+        backendType == ProcessGroup::BackendType::UCC) {
+      getDefaultBackend()->setSequenceNumberForGroup();
+    } else {
+      TORCH_CHECK(
+          false,
+          c10::str(
+              "ProcessGroup ",
+              getBackendName(),
+              " does not yet support sequence numbers."));
+    }
+  }
+
+  // Retrieves the current sequence number for the whole group, which should be
+  // in sync. If the returned number is not consistent across the group, it
+  // may indicate that there is some sort of collective desynchronization.
+  virtual uint64_t getSequenceNumberForGroup() {
+    auto backendType = getBackendType();
+
+    // TODO: HACK for backend name to get sequence number for that backend.
+    if (backendType == ProcessGroup::BackendType::GLOO ||
+        backendType == ProcessGroup::BackendType::NCCL ||
+        backendType == ProcessGroup::BackendType::UCC) {
+      return getDefaultBackend()->getSequenceNumberForGroup();
+    } else {
+      TORCH_CHECK(
+          false,
+          c10::str(
+              "ProcessGroup ",
+              getBackendName(),
+              " does not yet support sequence numbers."));
+    }
+  }
+
+  virtual c10::intrusive_ptr<Work> send(
+      std::vector<at::Tensor>& tensors,
+      int dstRank,
+      int tag) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::send", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             int64_t,
+                             int64_t)>();
+    return op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        dstRank,
+        tag);
+  }
+
+  virtual c10::intrusive_ptr<Work> recv(
+      std::vector<at::Tensor>& tensors,
+      int srcRank,
+      int tag) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::recv_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             int64_t,
+                             int64_t)>();
+    return op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        srcRank,
+        tag);
+  }
+
+  virtual c10::intrusive_ptr<Work> recvAnysource(
+      std::vector<at::Tensor>& tensors,
+      int tag) {
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::recv_any_source_", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::TensorList,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             int64_t)>();
+    return op.call(
+        tensors,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        tag);
+  }
+
+  virtual c10::intrusive_ptr<Work> barrier(
+      const BarrierOptions& opts = BarrierOptions()) {
+    static at::Tensor tensor;
+    // TODO: if nccl was specified then use it
+    auto device = opts.device;
+    if (device.has_value()) {
+      // set device tensor from argument
+      tensor = at::empty(
+          {1}, at::TensorOptions().device(device.value()).dtype(at::kByte));
+    } else if (backendType_ == c10d::ProcessGroup::BackendType::NCCL) {
+      // set cuda tensor
+      tensor = at::empty(
+          {1},
+          at::TensorOptions().device(at::DeviceType::CUDA).dtype(at::kByte));
+    } else {
+      // Default to using cpu implementation
+      tensor = at::empty(
+          {1},
+          at::TensorOptions().device(at::DeviceType::CPU).dtype(at::kByte));
+    }
+
+    static auto op = c10::Dispatcher::singleton()
+                         .findSchemaOrThrow("c10d::barrier", "")
+                         .typed<c10::intrusive_ptr<::c10d::Work>(
+                             at::Tensor,
+                             const c10::intrusive_ptr<::c10d::ProcessGroup>&,
+                             const std::vector<int64_t>&,
+                             int64_t)>();
+
+    return op.call(
+        tensor,
+        c10::intrusive_ptr<ProcessGroup>::unsafe_reclaim_from_nonowning(this),
+        opts.device_ids,
+        opts.timeout.count());
+  }
+
+  c10::intrusive_ptr<Options> getOptions() {
+    return options_;
+  }
+
+  bool hasBackends() {
+    return !deviceTypeToBackendType_.empty();
+  }
+
+  void setBackend(
+      c10::DeviceType deviceType,
+      BackendType backendType,
+      const c10::optional<c10::intrusive_ptr<Backend>>& backend) {
+    // TODO: should we add these entries after the backend setting succeeds?
+    deviceTypeToBackendType_[deviceType] = backendType;
+    deviceTypes_.insert(deviceType);
+    // if the backendType is already set then reuse it for this device
+    if (backendTypeToBackend_.find(backendType) !=
+        backendTypeToBackend_.end()) {
+      auto existingBackend = backendTypeToBackend_.at(backendType);
+      deviceTypeToBackend_[deviceType] = existingBackend;
+    } else {
+      // check if backend has value
+      if (backend.has_value()) {
+        deviceTypeToBackend_[deviceType] = backend.value();
+        backendTypeToBackend_[backendType] = backend.value();
+      }
+    }
+  }
+
+  c10::intrusive_ptr<Backend> getDefaultBackend() const {
+    TORCH_CHECK(
+        backendTypeToBackend_.find(backendType_) != backendTypeToBackend_.end(),
+        "Could not find the default backend type ",
+        backendType_,
+        " for Process Group with name ",
+        getBackendName(),
+        ".");
+    return backendTypeToBackend_.at(backendType_);
+  }
+
+  c10::intrusive_ptr<Backend> getBackend(c10::DeviceType deviceType);
+
+  c10::intrusive_ptr<Backend> getBackend(BackendType backendType) const {
+    TORCH_CHECK(
+        backendTypeToBackend_.find(backendType) != backendTypeToBackend_.end(),
+        "Could not find backend type ",
+        backendType,
+        ".");
+    return backendTypeToBackend_.at(backendType);
+  }
+
+  // Return device types supported by this ProcessGroup.
+  // Note: the return type is `Device` rather than `DeviceType` for the purpose
+  // of easy comparison at Python level. The `Device` will have default index
+  // (-1).
+  std::vector<c10::Device> getDeviceTypes() const {
+    std::vector<c10::Device> devices;
+    devices.reserve(deviceTypes_.size());
+    for (auto& dt : deviceTypes_) {
+      devices.push_back(c10::Device(dt));
+    }
+    return devices;
+  }
+
+  void registerOnCompletionHook(
+      std::function<void(std::shared_ptr<WorkInfo>)>&& hook) {
+    getDefaultBackend()->registerOnCompletionHook(std::move(hook));
+  }
+
+  void waitForPendingWorks() {
+    getDefaultBackend()->waitForPendingWorks();
+  }
+
+  bool hasHooks() const {
+    return getDefaultBackend()->hasHooks();
+  }
+
+  const std::string& getGroupName() const;
+  void setGroupName(const std::string& name);
+  void enableCollectivesTiming();
+
+  void release_resources() override;
+
+ protected:
+  // Implementations of this interface need to call this to setup
+  // appropriate logging etc.
+  void init();
+
+  c10::intrusive_ptr<c10d::Store> store_;
+  const int rank_;
+  const int size_;
+  const c10::intrusive_ptr<Options> options_;
+  const BackendType backendType_;
+
+  // Debug level setting. It is parsed once when ProcessGroup is constructed and
+  // remains the same across use of this process group.
+  DebugLevel dist_debug_level_;
+
+  // Backend classes for this ProcessGroup
+  std::unordered_set<c10::DeviceType> deviceTypes_;
+  std::unordered_map<c10::DeviceType, BackendType> deviceTypeToBackendType_;
+  std::unordered_map<c10::DeviceType, c10::intrusive_ptr<Backend>>
+      deviceTypeToBackend_;
+  std::unordered_map<BackendType, c10::intrusive_ptr<Backend>>
+      backendTypeToBackend_;
+};
+
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/ProcessGroupGloo.hpp

@@ -0,0 +1,438 @@
+#pragma once
+
+#ifdef USE_C10D_GLOO
+
+#include <condition_variable>
+#include <deque>
+#include <mutex>
+#include <thread>
+#include <unordered_map>
+#include <vector>
+
+#include <gloo/algorithm.h>
+#include <gloo/common/error.h>
+#include <gloo/context.h>
+#include <gloo/rendezvous/store.h>
+#include <gloo/transport/device.h>
+
+#include <c10/util/hash.h>
+
+#include <torch/csrc/distributed/c10d/Backend.hpp>
+#include <torch/csrc/distributed/c10d/Store.hpp>
+#include <torch/csrc/distributed/c10d/Types.hpp>
+#include <torch/csrc/distributed/c10d/Utils.hpp>
+
+namespace c10d {
+
+constexpr const char* GLOO_BACKEND_NAME = "gloo";
+
+// ProcessGroupGloo implements Gloo bindings for c10d.
+//
+// All functions on this class are expected to be called in the same
+// order across processes in the group. This is the only way that we
+// can guarantee to match up the same calls across processes. For
+// multi-threaded usage of process groups, you can use consider using
+// multiple process group instances.
+//
+// The Gloo algorithms that this class calls into are cached by their
+// signature (see description of AlgorithmKey above). This cache works
+// as follows: every function call instantiates an AlgorithmKey and
+// looks in the cache for existing entries. If there is one, it is
+// removed from the cache and returned to the caller. If there are
+// none, a new entry is created and returned. If an entry was created
+// before, but is still in use, the call will block and wait until the
+// entry is returned to the cache.
+//
+// In the future, we hope to extend this to allow multiple entries per
+// key, to enable parallelism for a single key. The number of entries
+// per key must always be identical for all processes. This maximum
+// number can be automatically tuned, but only if we let a single
+// process take charge, and have it broadcast the limits.
+//
+class TORCH_API ProcessGroupGloo : public Backend {
+ public:
+  // AsyncWork is the Gloo specific superclass for asynchronous work items.
+  // We can split asynchronous work into 3 phases:
+  // 1) Sanity checks and prepare input (e.g. memcpy)
+  // 2) Run operation on background thread
+  // 3) Synchronize with completion on foreground thread
+  //
+  // There is state to be shared between these 3 phases and all of this state
+  // is captured in the AsyncWork class and its derivatives.
+  //
+  // Note: while we are porting operations to use new style collectives, there
+  // is a split between operations using the existing caching approach and
+  // operations using the new AsyncWork base class. Over time we will port
+  // all operations and perform needed cleanup.
+  //
+  // FIXME: This probably should be called WorkGloo since the work is executed
+  // in sync mode by a background thread.
+  class TORCH_API AsyncWork : public Work {
+   public:
+    explicit AsyncWork(
+        std::vector<std::vector<at::Tensor>> outputTensors,
+        OpType opType,
+        uint64_t seq,
+        const char* profilingTitle = nullptr,
+        const c10::optional<std::vector<at::Tensor>>& inputTensors =
+            c10::nullopt);
+
+    ~AsyncWork() override = default;
+
+    static void execute(c10::intrusive_ptr<AsyncWork> work);
+
+    virtual void run() = 0;
+
+    std::vector<at::Tensor> result() override;
+
+    c10::intrusive_ptr<c10::ivalue::Future> getFuture() override;
+    uint64_t getSequencenumber() const override;
+
+   protected:
+    friend class ProcessGroupGloo;
+
+   private:
+    void finishWorkGloo();
+    void finishWorkGlooError(std::exception_ptr eptr);
+    inline void recordAsyncWorkProfilingInfo(
+        const char* profilingTitle,
+        const c10::optional<std::vector<at::Tensor>>& inputTensors);
+
+    const std::vector<std::vector<at::Tensor>> outputTensors_;
+    c10::intrusive_ptr<at::ivalue::Future> future_;
+    std::function<void()> recordFunctionBeforeCallback_;
+    const uint64_t seq_;
+  };
+
+  // Wrap c10d store as Gloo store
+  class TORCH_API GlooStore : public ::gloo::rendezvous::Store {
+   public:
+    GlooStore(const c10::intrusive_ptr<::c10d::Store>& store) : store_(store) {}
+
+    void setUint(const std::string& key, const std::vector<uint8_t>& value) {
+      store_->set(key, value);
+    }
+
+    void set(const std::string& key, const std::vector<char>& value) override {
+      std::vector<uint8_t> tmp(value.begin(), value.end());
+      store_->set(key, tmp);
+    }
+
+    std::vector<uint8_t> getUint(const std::string& key) {
+      auto value = store_->get(key);
+      return value;
+    }
+
+    std::vector<char> get(const std::string& key) override {
+      auto value = store_->get(key);
+      return std::vector<char>(value.begin(), value.end());
+    }
+
+    void wait(const std::vector<std::string>& keys) override {
+      store_->wait(keys, ::c10d::Store::kDefaultTimeout);
+    }
+
+    void wait(
+        const std::vector<std::string>& keys,
+        const std::chrono::milliseconds& timeout) override {
+      store_->wait(keys, timeout);
+    }
+
+#ifdef GLOO_STORE_HAS_STORE_V2
+    bool has_v2_support() override {
+      return store_->hasExtendedApi();
+    }
+
+    std::vector<std::vector<char>> multi_get(
+        const std::vector<std::string>& keys) override {
+      std::vector<std::vector<char>> res;
+      for (auto& value : store_->multiGet(keys)) {
+        res.emplace_back(std::vector<char>(value.begin(), value.end()));
+      }
+      return res;
+    }
+
+    void multi_set(
+        const std::vector<std::string>& keys,
+        const std::vector<std::vector<char>>& values) override {
+      std::vector<std::vector<uint8_t>> u_values;
+      for (auto& value : values) {
+        u_values.emplace_back(std::vector<uint8_t>(value.begin(), value.end()));
+      }
+      store_->multiSet(keys, u_values);
+    }
+
+    void append(const std::string& key, const std::vector<char>& value)
+        override {
+      std::vector<uint8_t> tmp(value.begin(), value.end());
+      return store_->append(key, tmp);
+    }
+
+    int64_t add(const std::string& key, int64_t value) override {
+      return store_->add(key, value);
+    }
+#endif
+
+   protected:
+    c10::intrusive_ptr<::c10d::Store> store_;
+  };
+
+  // For send and recv operations there is no need to pass them to the
+  // thread pool as they are entirely completed by the device thread.
+  // This work object is used to synchronize completion of the send or
+  // recv operation. It keeps a reference to the tensor it is
+  // operating on to prevent it from being deallocated while the
+  // operation is still in flight.
+  class TORCH_API SendWork : public Work {
+   public:
+    explicit SendWork(
+        at::Tensor& tensor,
+        std::unique_ptr<::gloo::transport::UnboundBuffer> buffer,
+        uint64_t seq);
+
+    bool wait(std::chrono::milliseconds timeout = kNoTimeout) override;
+
+    void abort() override;
+
+    uint64_t getSequencenumber() const override;
+
+   protected:
+    at::Tensor tensor_;
+    std::unique_ptr<::gloo::transport::UnboundBuffer> buffer_;
+    const uint64_t seq_;
+  };
+
+  class TORCH_API RecvWork : public Work {
+   public:
+    explicit RecvWork(
+        at::Tensor& tensor,
+        std::unique_ptr<::gloo::transport::UnboundBuffer> buffer,
+        OpType opType,
+        uint64_t seq,
+        const char* profilingTitle = nullptr);
+
+    int sourceRank() const override;
+
+    bool wait(std::chrono::milliseconds timeout = kNoTimeout) override;
+
+    void abort() override;
+
+    uint64_t getSequencenumber() const override;
+
+   protected:
+    at::Tensor tensor_;
+    std::unique_ptr<::gloo::transport::UnboundBuffer> buffer_;
+    int srcRank_;
+    const uint64_t seq_;
+  };
+
+  struct TORCH_API Options : public Backend::Options {
+    explicit Options(
+        std::chrono::milliseconds timeout = kBackendDefaultTimeout);
+
+    // return intrusive_ptr of the object
+    static c10::intrusive_ptr<Options> create(
+        std::chrono::milliseconds timeout = kBackendDefaultTimeout) {
+      return c10::make_intrusive<Options>(timeout);
+    }
+
+    std::vector<std::shared_ptr<::gloo::transport::Device>> devices;
+    int threads;
+  };
+
+  const std::string getBackendName() const override {
+    return std::string(GLOO_BACKEND_NAME);
+  }
+
+  // Helper functions to create a new device object.
+  // They are static functions on this class to keep them logically
+  // separate from the rest of the code base (e.g. torch/csrc/distributed).
+
+  // Create new device instance for specific interface.
+  static std::shared_ptr<::gloo::transport::Device> createDeviceForInterface(
+      const std::string& interface);
+
+  // Create new device instance for specific hostname or address.
+  static std::shared_ptr<::gloo::transport::Device> createDeviceForHostname(
+      const std::string& hostname);
+
+  // Create new device instance.
+  // It tries to resolve this machine's hostname and bind to that address.
+  // If that fails (i.e. the hostname doesn't resolve to an address), it
+  // falls back to binding to the loopback address.
+  static std::shared_ptr<::gloo::transport::Device> createDefaultDevice();
+
+  // Create ProcessGroupGloo instance.
+  static c10::intrusive_ptr<ProcessGroupGloo> createProcessGroupGloo(
+      const c10::intrusive_ptr<Store>& store,
+      int rank,
+      int size,
+      std::chrono::milliseconds timeout);
+
+  explicit ProcessGroupGloo(
+      const c10::intrusive_ptr<Store>& store,
+      int rank,
+      int size,
+      c10::intrusive_ptr<Options> options = Options::create());
+
+  ~ProcessGroupGloo() override;
+
+  c10::intrusive_ptr<Options> getOptions() {
+    return options_;
+  }
+
+  c10::intrusive_ptr<Work> broadcast(
+      std::vector<at::Tensor>& tensors,
+      const BroadcastOptions& opts = BroadcastOptions()) override;
+
+  c10::intrusive_ptr<Work> allreduce(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceOptions& opts = AllreduceOptions()) override;
+
+  c10::intrusive_ptr<Work> allreduce_sparse(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceOptions& opts = AllreduceOptions()) override;
+
+  c10::intrusive_ptr<Work> allreduce_coalesced(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceCoalescedOptions& opts =
+          AllreduceCoalescedOptions()) override;
+
+  c10::intrusive_ptr<Work> reduce(
+      std::vector<at::Tensor>& tensors,
+      const ReduceOptions& opts = ReduceOptions()) override;
+
+  c10::intrusive_ptr<Work> _reduce_scatter_base(
+      at::Tensor& outputTensor,
+      at::Tensor& inputTensor,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) override;
+
+  c10::intrusive_ptr<Work> _allgather_base(
+      at::Tensor& output_tensor,
+      at::Tensor& input_tensor,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> allgather(
+      std::vector<std::vector<at::Tensor>>& outputs,
+      std::vector<at::Tensor>& inputs,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> allgather_coalesced(
+      std::vector<std::vector<at::Tensor>>& output_lists,
+      std::vector<at::Tensor>& input_list,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> gather(
+      std::vector<std::vector<at::Tensor>>& outputs,
+      std::vector<at::Tensor>& inputs,
+      const GatherOptions& opts = GatherOptions()) override;
+
+  c10::intrusive_ptr<Work> scatter(
+      std::vector<at::Tensor>& outputs,
+      std::vector<std::vector<at::Tensor>>& inputs,
+      const ScatterOptions& opts = ScatterOptions()) override;
+
+  c10::intrusive_ptr<Work> reduce_scatter(
+      std::vector<at::Tensor>& outputs,
+      std::vector<std::vector<at::Tensor>>& inputs,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) override;
+
+  c10::intrusive_ptr<Work> alltoall_base(
+      at::Tensor& outputTensor,
+      at::Tensor& inputTensor,
+      std::vector<int64_t>& outputCounts,
+      std::vector<int64_t>& inputCounts,
+      const AllToAllOptions& opts = AllToAllOptions()) override;
+
+  c10::intrusive_ptr<Work> send(
+      std::vector<at::Tensor>& tensors,
+      int dstRank,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> recv(
+      std::vector<at::Tensor>& tensors,
+      int srcRank,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> recvAnysource(
+      std::vector<at::Tensor>& tensors,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> barrier(
+      const BarrierOptions& opts = BarrierOptions()) override;
+
+  void enableCollectivesTiming() override;
+
+  const std::unique_ptr<::gloo::rendezvous::Store>& _getStore() const {
+    return store_;
+  }
+
+  // Similar to barrier(), but blocks rank 0 until all other ranks have
+  // acknowledged that they are alive (through send/recv from rank 0). Rank 0
+  // is able to report all failed ranks if waitAllRanks = true, otherwise
+  // reports the first rank it detected as failed.
+  void monitoredBarrier(
+      const BarrierOptions& opts = BarrierOptions(),
+      bool waitAllRanks = false) override;
+
+  // Agrees on an initial sequence number for the whole group by having rank 0
+  // create it and broadcast it to other ranks using the store.
+  void setSequenceNumberForGroup() override;
+
+  // Retrieves the current sequence number for the whole group, which should be
+  // in sync. If the returned number is not consistent across the group, it
+  // may indicate that there is some sort of collective desynchronization.
+  uint64_t getSequenceNumberForGroup() override;
+
+  int getNumThreads() {
+    return options_->threads;
+  }
+
+ protected:
+  std::unique_ptr<::gloo::rendezvous::Store> store_;
+  const c10::intrusive_ptr<Options> options_;
+
+  // Every Gloo context represents a set of connections to its peers.
+  // In order to use more than one device (or allow for parallelism on
+  // a single device), you need multiple contexts.
+  std::vector<std::shared_ptr<::gloo::Context>> contexts_;
+  std::vector<std::thread> threads_;
+  bool stop_;
+
+  // Incremented for every collective we kick off.
+  // The value is used as tag for collective operations. Collectives are kicked
+  // off in identical order across processes. Therefore the tag can be used
+  // to match up operations during concurrent execution.
+  uint32_t collectiveCounter_;
+
+  // Returns next collective tag to use (uses collectiveCounter_).
+  uint32_t nextTag();
+
+  // Returns the context to use for the specified tag.
+  // With `nextTag` returning an increasing number, this should lead
+  // to contexts being used in a round-robin fashion.
+  std::shared_ptr<::gloo::Context> getContext(uint32_t tag);
+
+  // Entrypoint for worker threads.
+  void runLoop(int workerIndex);
+
+  // Queue work to run on worker thread.
+  void enqueue(c10::intrusive_ptr<AsyncWork> work);
+
+  // Keep both a queue of pending work, and a vector with in progress work.
+  // Both of these can only be mutated when holding the queue lock.
+  // We keep both around instead of just the queue, so we can grab a weak_ptr
+  // to all in progress and pending work when executing a barrier.
+  // When executing a barrier, we need to ensure that all prior work
+  // has completed before completing itself.
+  std::deque<c10::intrusive_ptr<AsyncWork>> workQueue_;
+  std::vector<c10::intrusive_ptr<AsyncWork>> workInProgress_;
+  std::mutex workMutex_;
+  std::condition_variable workProduceCV_;
+  std::condition_variable workConsumeCV_;
+  uint64_t seq_{0};
+};
+
+} // namespace c10d
+
+#endif // USE_C10D_GLOO

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/ProcessGroupMPI.hpp

@@ -0,0 +1,271 @@
+#pragma once
+
+#ifdef USE_C10D_MPI
+
+#include <condition_variable>
+#include <deque>
+#include <exception>
+#include <memory>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+#include <ATen/core/ivalue.h>
+#include <ATen/core/ivalue_inl.h>
+
+#include <torch/csrc/distributed/c10d/Backend.hpp>
+#include <torch/csrc/distributed/c10d/Types.hpp>
+#include <torch/csrc/distributed/c10d/Utils.hpp>
+
+#include <c10/util/CallOnce.h>
+
+#include <mpi.h>
+
+namespace c10d {
+
+constexpr const char* MPI_BACKEND_NAME = "mpi";
+
+// WorkEntry is the state associated with a single MPI run instance.
+// It include the source Tensor list and destination Tensor list, as well as
+// The actual run function that will operate either on src or dst or both.
+struct WorkEntry {
+  explicit WorkEntry(
+      std::vector<at::Tensor>* srcPtr,
+      std::vector<at::Tensor>* dstPtr,
+      std::function<void(std::unique_ptr<WorkEntry>&)> run)
+      : dst(dstPtr ? *dstPtr : std::vector<at::Tensor>()), run(std::move(run)) {
+    if (srcPtr) {
+      src = *srcPtr;
+    }
+  }
+
+  // Not copyable
+  WorkEntry(const WorkEntry&) = delete;
+  // Not copy assignable
+  WorkEntry& operator=(const WorkEntry&) = delete;
+
+  // For input and output tensors (in-place), we will always use src
+  std::vector<at::Tensor> src;
+
+  // Copy of user provided outputs.
+  const std::vector<at::Tensor> dst;
+
+  // src rank returned, for recv only
+  int* srcRank = nullptr;
+  std::function<void(std::unique_ptr<WorkEntry>&)> run;
+};
+
+// ProcessGroupMPI implements MPI bindings for c10d.
+//
+// All functions on this class are expected to be called in the same
+// order across processes in the group. This is the only way that we
+// can guarantee to match up the same calls across processes.
+//
+// All MPI functions provided by this class is asynchronously scheduled on a
+// Worker thread. Therefore, ProcessGroupMPI requires the MPI implementation
+// that is used to have a minimum thread support value of MPI_THREAD_SERIALIZED.
+// That is, The process may be multi-threaded, and multiple threads may make
+// MPI calls, but only one at a time: MPI calls are not made concurrently from
+// two distinct threads (all MPI calls are serialized). However, with
+// MPI_THREAD_SERIALIZED, ProcessGroupMPI will only support a singe process
+// group. In other words, no more than 1 process group can be created globally.
+//
+// If you would like to use multiple ProcessGroupMPI, it requires your MPI
+// implementation to have a thread support value of MPI_THREAD_MULTIPLE, that
+// is, multiple threads may call MPI, with no restriction.
+//
+// Also note that ProcessGroupMPI only supports a single Tensor operation. In
+// other words, the size of the input Tensor vector should always be 1.
+//
+// CUDA tensor can be supported if the MPI used is CUDA-aware MPI, and
+// ProcessGroupMPI will automatically detect this support.
+class TORCH_API ProcessGroupMPI : public Backend {
+ public:
+  class WorkMPI : public Work {
+   public:
+    explicit WorkMPI(
+        std::vector<at::Tensor> outputTensors,
+        const char* profilingTitle = nullptr,
+        const c10::optional<std::vector<at::Tensor>>& inputTensors =
+            c10::nullopt)
+        : Work(-1, OpType::UNKNOWN, profilingTitle, inputTensors),
+          outputTensors_(std::move(outputTensors)),
+          future_(c10::make_intrusive<at::ivalue::Future>(
+              c10::ListType::create(c10::TensorType::get()))) {}
+
+    std::vector<at::Tensor> result() override;
+
+    c10::intrusive_ptr<c10::ivalue::Future> getFuture() override;
+
+   protected:
+    friend class ProcessGroupMPI;
+
+   private:
+    void finishWorkMPI();
+    void finishWorkMPIError(std::exception_ptr eptr);
+
+    std::vector<at::Tensor> outputTensors_;
+    c10::intrusive_ptr<at::ivalue::Future> future_;
+  };
+
+  class AsyncWork : public Work {
+   public:
+    AsyncWork(
+        MPI_Request request,
+        std::vector<at::Tensor> outputTensors,
+        const char* profilingTitle = nullptr,
+        const c10::optional<std::vector<at::Tensor>>& inputTensors =
+            c10::nullopt);
+
+    ~AsyncWork() override;
+
+    bool isCompleted() override;
+
+    bool isSuccess() const override;
+
+    int sourceRank() const override;
+
+    bool wait(std::chrono::milliseconds timeout = kUnsetTimeout) override;
+
+    void abort() override;
+
+    std::vector<at::Tensor> result() override;
+
+   protected:
+    void populateException();
+
+   private:
+    const std::vector<at::Tensor> outputTensors_;
+    MPI_Request request_;
+    MPI_Status status_;
+  };
+
+  // Constructor will spawn up the worker thread loop
+  explicit ProcessGroupMPI(int rank, int size, MPI_Comm pgComm);
+
+  ~ProcessGroupMPI() override;
+
+  // Abort the MPI program, needs to be called when exception is detected
+  void abort();
+
+  const std::string getBackendName() const override {
+    return std::string(MPI_BACKEND_NAME);
+  }
+
+  c10::intrusive_ptr<Work> broadcast(
+      std::vector<at::Tensor>& data,
+      const BroadcastOptions& opts = BroadcastOptions()) override;
+
+  c10::intrusive_ptr<Work> allreduce(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceOptions& opts = AllreduceOptions()) override;
+
+  c10::intrusive_ptr<Work> allreduce_coalesced(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceCoalescedOptions& opts =
+          AllreduceCoalescedOptions()) override;
+
+  c10::intrusive_ptr<Work> reduce(
+      std::vector<at::Tensor>& tensors,
+      const ReduceOptions& opts = ReduceOptions()) override;
+
+  c10::intrusive_ptr<Work> allgather(
+      std::vector<std::vector<at::Tensor>>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> _allgather_base(
+      at::Tensor& outputbuffer,
+      at::Tensor& inputbuffer,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> allgather_coalesced(
+      std::vector<std::vector<at::Tensor>>& outputTensorLists,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) override;
+
+  c10::intrusive_ptr<Work> gather(
+      std::vector<std::vector<at::Tensor>>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const GatherOptions& opts = GatherOptions()) override;
+
+  c10::intrusive_ptr<Work> scatter(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<std::vector<at::Tensor>>& inputTensors,
+      const ScatterOptions& opts = ScatterOptions()) override;
+
+  c10::intrusive_ptr<Work> reduce_scatter(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<std::vector<at::Tensor>>& inputTensors,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) override;
+
+  c10::intrusive_ptr<Work> alltoall_base(
+      at::Tensor& outputTensor,
+      at::Tensor& inputTensor,
+      std::vector<int64_t>& outputSplitSizes,
+      std::vector<int64_t>& inputSplitSizes,
+      const AllToAllOptions& opts = AllToAllOptions()) override;
+
+  c10::intrusive_ptr<Work> alltoall(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllToAllOptions& opts = AllToAllOptions()) override;
+
+  c10::intrusive_ptr<Work> send(
+      std::vector<at::Tensor>& tensors,
+      int dstRank,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> recv(
+      std::vector<at::Tensor>& tensors,
+      int srcRank,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> recvAnysource(
+      std::vector<at::Tensor>& tensor,
+      int tag) override;
+
+  c10::intrusive_ptr<Work> barrier(
+      const BarrierOptions& opts = BarrierOptions()) override;
+
+  // Creating a new ProcessGroupMPI, will initialize MPI if not initialized
+  static c10::intrusive_ptr<ProcessGroupMPI> createProcessGroupMPI(
+      std::vector<int> ranks = {});
+
+ protected:
+  using WorkType =
+      std::tuple<std::unique_ptr<WorkEntry>, c10::intrusive_ptr<WorkMPI>>;
+  // Worker thread loop
+  void runLoop();
+  // Helper function that is called by the destructor
+  void destroy();
+
+  c10::intrusive_ptr<Work> enqueue(
+      std::unique_ptr<WorkEntry> entry,
+      const char* profilingTitle = nullptr,
+      const c10::optional<std::vector<at::Tensor>>& inputTensors =
+          c10::nullopt);
+
+  bool stop_;
+
+  std::mutex pgMutex_;
+  std::thread workerThread_;
+
+  std::deque<WorkType> queue_;
+  std::condition_variable queueProduceCV_;
+  std::condition_variable queueConsumeCV_;
+
+  // Global states
+  static void initMPIOnce();
+  static void mpiExit();
+  static c10::once_flag onceFlagInitMPI;
+
+  static std::mutex pgGlobalMutex_;
+  static int mpiThreadSupport_;
+
+  MPI_Comm pgComm_;
+};
+
+} // namespace c10d
+
+#endif // USE_C10D_MPI

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/PyProcessGroup.hpp

@@ -0,0 +1,181 @@
+#pragma once
+
+#include <torch/csrc/distributed/c10d/ProcessGroup.hpp>
+#include <torch/csrc/jit/python/pybind_utils.h>
+#include <torch/csrc/utils/pybind.h>
+
+namespace c10d {
+
+// PyProcessGroup is a pybind11 trampoline class to allow a Python
+// class to inherit from torch.distributed.ProcessGroup
+class PyProcessGroup : public ProcessGroup {
+ public:
+  // PyWork is a pybind11 trampoline class to allow a Python
+  // class to inherit from torch.distributed.Work
+  class PyWork : public Work {
+   public:
+    PyWork() = default;
+
+    bool wait(std::chrono::milliseconds timeout = kNoTimeout) override {
+      PYBIND11_OVERRIDE(
+          bool, /* Return type */
+          Work, /* Parent class */
+          wait, /* Name of function in C++ */
+          timeout);
+    }
+
+    c10::intrusive_ptr<c10::ivalue::Future> getFuture() override {
+      // We cannot use PYBIND11_OVERRIDE because:
+      // 1. We have to >MANUALLY< unwrap the PyFutureWrapper and
+      // 2. The python name is get_future
+      pybind11::gil_scoped_acquire gil;
+      auto override =
+          pybind11::get_override(static_cast<const Work*>(this), "get_future");
+
+      if (override) {
+        py::object o = override();
+        auto futWrapper =
+            o.cast<std::shared_ptr<torch::jit::PythonFutureWrapper>>();
+        return futWrapper->fut;
+      }
+
+      return Work::getFuture();
+    }
+  };
+
+  using ProcessGroup::ProcessGroup;
+
+  const std::string getBackendName() const override {
+    PYBIND11_OVERRIDE_PURE(
+        std::string, /* Return type */
+        ProcessGroup, /* Parent class */
+        getBackendName, /* Name of function in C++ */
+    );
+  }
+
+  c10::intrusive_ptr<Work> allgather(
+      std::vector<std::vector<at::Tensor>>& outputTensors,
+      std::vector<at::Tensor>& inputTensors,
+      const AllgatherOptions& opts = AllgatherOptions()) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        allgather, /* Name of function in C++ */
+        outputTensors,
+        inputTensors,
+        opts);
+  }
+
+  c10::intrusive_ptr<Work> allreduce(
+      std::vector<at::Tensor>& tensors,
+      const AllreduceOptions& opts = AllreduceOptions()) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        allreduce, /* Name of function in C++ */
+        tensors,
+        opts);
+  }
+
+  c10::intrusive_ptr<Work> barrier(
+      const BarrierOptions& opts = BarrierOptions()) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        barrier, /* Name of function in C++ */
+        opts);
+  }
+
+  c10::intrusive_ptr<Work> broadcast(
+      std::vector<at::Tensor>& tensors,
+      const BroadcastOptions& opts = BroadcastOptions()) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        broadcast, /* Name of function in C++ */
+        tensors,
+        opts);
+  }
+
+  c10::intrusive_ptr<Work> reduce_scatter(
+      std::vector<at::Tensor>& outputTensors,
+      std::vector<std::vector<at::Tensor>>& inputTensors,
+      const ReduceScatterOptions& opts = ReduceScatterOptions()) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        reduce_scatter, /* Name of function in C++ */
+        outputTensors,
+        inputTensors,
+        opts);
+  }
+
+  c10::intrusive_ptr<Work> send(
+      std::vector<at::Tensor>& tensors,
+      int dstRank,
+      int tag) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        send, /* Name of function in C++ */
+        tensors,
+        dstRank,
+        tag);
+  }
+
+  c10::intrusive_ptr<Work> recv(
+      std::vector<at::Tensor>& tensors,
+      int srcRank,
+      int tag) override {
+    PYBIND11_OVERRIDE(
+        c10::intrusive_ptr<Work>, /* Return type */
+        ProcessGroup, /* Parent class */
+        recv, /* Name of function in C++ */
+        tensors,
+        srcRank,
+        tag);
+  }
+};
+
+class TORCH_PYTHON_API PythonOnCompletionHook {
+ public:
+  // Wraps a py::object hook and acquires Python GIL in dtor before
+  // destructing the hook object.
+  PythonOnCompletionHook(py::object hook) : hook_(std::move(hook)) {}
+
+  ~PythonOnCompletionHook() {
+    py::gil_scoped_acquire ag;
+    hook_.dec_ref();
+    // Explicitly set hook_ to nullptr to prevent py::object's dtor
+    // to decref on the PyObject again.
+    // See Note [Destructing py::object] in python_ivalue.h
+    hook_.ptr() = nullptr;
+  }
+
+  void operator()(std::shared_ptr<WorkInfo> workInfo) const {
+    std::exception_ptr eptr;
+    {
+      py::gil_scoped_acquire acquire;
+      try {
+        hook_(workInfo);
+      } catch (py::error_already_set& e) {
+        // py::error_already_set requires GIL to destruct, take
+        // special care.
+        eptr = std::make_exception_ptr(std::runtime_error(e.what()));
+        e.restore();
+        PyErr_Clear();
+      } catch (std::exception& e) {
+        eptr = std::current_exception();
+      }
+    }
+    // No more Python-related stuff at this point, i.e., this
+    // exception can be captured and handled by PG backend.
+    if (eptr)
+      std::rethrow_exception(eptr);
+  }
+
+ private:
+  py::object hook_;
+};
+
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/Store.hpp

@@ -0,0 +1,101 @@
+#pragma once
+
+#include <chrono>
+#include <cstdint>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
+#include <c10/macros/Macros.h>
+#include <torch/custom_class.h>
+
+namespace c10d {
+
+// callback function will be given arguments (optional<string> oldValue,
+// optional<string> newValue)
+using WatchKeyCallback =
+    std::function<void(c10::optional<std::string>, c10::optional<std::string>)>;
+
+class TORCH_API Store : public torch::CustomClassHolder {
+ public:
+  static constexpr std::chrono::milliseconds kDefaultTimeout =
+      std::chrono::seconds(300);
+  static constexpr std::chrono::milliseconds kNoTimeout =
+      std::chrono::milliseconds::zero();
+
+  Store() : timeout_(kDefaultTimeout) {}
+
+  explicit Store(const std::chrono::milliseconds& timeout)
+      : timeout_(timeout) {}
+
+  Store(const Store&) = default;
+  Store(Store&&) noexcept = default;
+
+  ~Store() override = default;
+
+  void set(const std::string& key, const std::string& value);
+
+  virtual void set(
+      const std::string& key,
+      const std::vector<uint8_t>& value) = 0;
+
+  std::string compareSet(
+      const std::string& key,
+      const std::string& currentValue,
+      const std::string& newValue);
+
+  virtual std::vector<uint8_t> compareSet(
+      const std::string& key,
+      const std::vector<uint8_t>& currentValue,
+      const std::vector<uint8_t>& newValue) {
+    TORCH_INTERNAL_ASSERT(false, "Not implemented.");
+  }
+
+  std::string get_to_str(const std::string& key);
+
+  virtual std::vector<uint8_t> get(const std::string& key) = 0;
+
+  virtual int64_t add(const std::string& key, int64_t value) = 0;
+
+  virtual bool deleteKey(const std::string& key) = 0;
+
+  virtual bool check(const std::vector<std::string>& keys) = 0;
+
+  virtual int64_t getNumKeys() = 0;
+
+  virtual void wait(const std::vector<std::string>& keys) = 0;
+
+  virtual void wait(
+      const std::vector<std::string>& keys,
+      const std::chrono::milliseconds& timeout) = 0;
+
+  virtual const std::chrono::milliseconds& getTimeout() const noexcept;
+
+  virtual void setTimeout(const std::chrono::milliseconds& timeout);
+
+  // watchKey() is deprecated and no longer supported.
+  virtual void watchKey(
+      const std::string& /* unused */,
+      WatchKeyCallback /* unused */) {
+    TORCH_CHECK(false, "watchKey is deprecated, no implementation support it.");
+  }
+
+  virtual void append(
+      const std::string& key,
+      const std::vector<uint8_t>& value);
+
+  virtual std::vector<std::vector<uint8_t>> multiGet(
+      const std::vector<std::string>& keys);
+
+  virtual void multiSet(
+      const std::vector<std::string>& keys,
+      const std::vector<std::vector<uint8_t>>& values);
+
+  // Returns true if this store support append, multiGet and multiSet
+  virtual bool hasExtendedApi() const;
+
+ protected:
+  std::chrono::milliseconds timeout_;
+};
+
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/Utils.hpp

@@ -0,0 +1,729 @@
+#pragma once
+
+#include <ATen/ATen.h>
+#include <c10/util/Exception.h>
+#include <c10/util/accumulate.h>
+#include <c10/util/irange.h>
+#include <torch/csrc/distributed/c10d/Types.hpp>
+
+#ifdef _WIN32
+#include <winsock2.h>
+#include <ws2tcpip.h>
+typedef SSIZE_T ssize_t;
+#pragma comment(lib, "Ws2_32.lib")
+#else
+#include <fcntl.h>
+#include <netdb.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#endif
+
+#include <sys/types.h>
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <functional>
+#include <limits>
+#include <string>
+#include <system_error>
+#include <tuple>
+#include <vector>
+
+namespace c10d {
+
+// Retrieve tensor shapes from a given tensor.
+TORCH_API std::vector<at::Tensor> getTensorShapes(
+    const std::vector<at::Tensor>& tensors);
+
+// Use -2 to represent unset state of env vars
+#define C10D_ENV_NOT_SET -2
+
+// Turns at::IntArrayRef into "(1, 2, 3, 4)".
+inline std::string toString(at::IntArrayRef l) {
+  std::stringstream ss;
+  ss << "(";
+  for (const auto i : c10::irange(l.size())) {
+    if (i > 0) {
+      ss << ", ";
+    }
+    ss << l[i];
+  }
+  ss << ")";
+  return ss.str();
+}
+
+inline std::string toString(const c10::Layout& layout) {
+  std::stringstream ss;
+  ss << layout;
+  return ss.str();
+}
+
+inline void assertSameType(
+    const at::DeprecatedTypeProperties& type,
+    const std::vector<at::Tensor>& tensors) {
+  for (const auto i : c10::irange(tensors.size())) {
+    if (!tensors[i].options().type_equal(type.options())) {
+      const std::string expected = type.toString();
+      const std::string actual = tensors[i].toString();
+      throw std::invalid_argument(
+          "mixed types (" + expected + " and " + actual + ")");
+    }
+  }
+}
+
+inline std::vector<std::string> split(
+    char separator,
+    const std::string& string) {
+  std::vector<std::string> pieces;
+  std::stringstream ss(string);
+  std::string item;
+  while (std::getline(ss, item, separator)) {
+    pieces.push_back(std::move(item));
+  }
+  return pieces;
+}
+
+inline std::string getCvarString(
+    const std::vector<std::string>& env,
+    const char* def) {
+  const char* ret = def;
+
+  if (env.empty()) {
+    TORCH_CHECK(false, "No environment variables passed");
+    return ret;
+  }
+
+  /* parse environment variable in reverse order, so the early
+   * versions of a variable get higher priority than the latter
+   * versions of the same variable */
+  for (int i = env.size() - 1; i >= 0; i--) {
+    const char* val = std::getenv(env[i].c_str());
+    if (val == nullptr) {
+      continue;
+    } else if (i) {
+      TORCH_WARN(
+          "Environment variable " + env[i] + " is deprecated; use " + env[0] +
+          " instead");
+    }
+
+    ret = val;
+  }
+
+  return ret;
+}
+
+inline int getCvarInt(const std::vector<std::string>& env, int def) {
+  int ret = def;
+
+  if (env.empty()) {
+    TORCH_CHECK(false, "No environment variables passed");
+    return ret;
+  }
+
+  /* parse environment variable in reverse order, so the early
+   * versions of a variable get higher priority than the latter
+   * versions of the same variable */
+  for (int i = env.size() - 1; i >= 0; i--) {
+    char* val = std::getenv(env[i].c_str());
+    if (val == nullptr) {
+      continue;
+    } else if (i) {
+      TORCH_WARN(
+          "Environment variable " + env[i] + " is deprecated; use " + env[0] +
+          " instead");
+    }
+
+    try {
+      ret = std::stoi(val);
+    } catch (std::exception& e) {
+      TORCH_CHECK(false, "Invalid value for environment variable: " + env[i]);
+    }
+  }
+
+  return ret;
+}
+
+inline bool getCvarBool(const std::vector<std::string>& env, bool def) {
+  bool ret = def;
+
+  if (env.empty()) {
+    TORCH_CHECK(false, "No environment variables passed");
+    return ret;
+  }
+
+  /* parse environment variable in reverse order, so the early
+   * versions of a variable get higher priority than the latter
+   * versions of the same variable */
+  for (int i = env.size() - 1; i >= 0; i--) {
+    char* val_ = std::getenv(env[i].c_str());
+    if (val_ == nullptr) {
+      continue;
+    } else if (i) {
+      TORCH_WARN(
+          "Environment variable " + env[i] + " is deprecated; use " + env[0] +
+          " instead");
+    }
+
+    std::string val = std::string(val_);
+    for (auto& x : val) {
+      x = std::tolower(x);
+    }
+
+    if (val == "y" || val == "yes" || val == "1" || val == "t" ||
+        val == "true") {
+      ret = true;
+    } else if (
+        val == "n" || val == "no" || val == "0" || val == "f" ||
+        val == "false") {
+      ret = false;
+    } else {
+      TORCH_CHECK(false, "Invalid value for environment variable: " + env[i]);
+      return ret;
+    }
+  }
+
+  return ret;
+}
+
+inline void assertSameSizes(
+    const at::IntArrayRef& sizes,
+    const std::vector<at::Tensor>& tensors) {
+  for (const auto i : c10::irange(tensors.size())) {
+    if (!tensors[i].sizes().equals(sizes)) {
+      const auto expected = toString(sizes);
+      const auto actual = toString(tensors[i].sizes());
+      throw std::invalid_argument(
+          "mixed sizes (" + expected + " and " + actual + ")");
+    }
+  }
+}
+
+inline void assertSameSizeAndType(const std::vector<at::Tensor>& tensors) {
+  // Ensure we have at least one tensor
+  if (tensors.empty()) {
+    throw std::invalid_argument("argument is empty");
+  }
+
+  // Ensure all tensors have identical type and shape
+  auto options = tensors[0].options();
+  auto sizes = tensors[0].sizes();
+  for (const auto i : c10::irange(1, tensors.size())) {
+    if (!tensors[i].options().type_equal(options)) {
+      const auto expected = toString(options);
+      const auto actual = toString(tensors[i].options());
+      throw std::invalid_argument(
+          "argument contains mixed types (" + expected + " and " + actual +
+          ")");
+    }
+    if (!tensors[i].sizes().equals(sizes)) {
+      const auto expected = toString(sizes);
+      const auto actual = toString(tensors[i].sizes());
+      throw std::invalid_argument(
+          "argument contains mixed sizes (" + expected + " and " + actual +
+          ")");
+    }
+  }
+}
+
+inline void assertTypeMatch(
+    std::function<void(const std::string&)> fn,
+    const at::DeprecatedTypeProperties& type,
+    const at::ArrayRef<at::Tensor> tensors,
+    size_t index) {
+  if (!tensors[index].options().type_equal(type.options())) {
+    fn("invalid tensor type at index " + std::to_string(index) + " (expected " +
+       type.toString() + ", got " + tensors[index].toString() + ")");
+  }
+}
+
+inline void assertTypeMatch(
+    std::function<void(const std::string&)> fn,
+    const at::TensorOptions& options,
+    const at::ArrayRef<at::Tensor> tensors,
+    size_t index) {
+  if (!tensors[index].options().type_equal(options)) {
+    fn("invalid tensor type at index " + std::to_string(index) + " (expected " +
+       toString(options) + ", got " + toString(tensors[index].options()) + ")");
+  }
+}
+
+inline void assertSizesMatch(
+    std::function<void(const std::string&)> fn,
+    const at::IntArrayRef& sizes,
+    const at::ArrayRef<at::Tensor> tensors,
+    size_t index) {
+  if (tensors[index].sizes() != sizes) {
+    fn("invalid tensor size at index " + std::to_string(index) + " (expected " +
+       toString(sizes) + ", got " + toString(tensors[index].sizes()) + ")");
+  }
+}
+
+inline void assertLayoutMatch(
+    std::function<void(const std::string&)> fn,
+    const c10::Layout& expected,
+    const at::ArrayRef<at::Tensor> tensors,
+    size_t index) {
+  const auto& actual = tensors[index].layout();
+  if (actual != expected) {
+    fn("invalid tensor layout at index " + std::to_string(index) +
+       " (expected " + toString(expected) + ", got " + toString(actual) + ")");
+  }
+}
+
+inline void assertLayoutMatch(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  const auto& layout = tensors[0].layout();
+  for (const auto i : c10::irange(1, tensors.size())) {
+    assertLayoutMatch(fn, layout, tensors, i);
+  }
+}
+
+inline void assertNonEmpty(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  if (tensors.empty()) {
+    fn("requires non-empty tensor list");
+  }
+}
+
+inline void assertSingleElement(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  if (tensors.size() != 1) {
+    fn("requires a single-element tensor list");
+  }
+}
+
+inline void assertSingleElementInput(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  if (tensors.size() != 1) {
+    fn("requires a single-element input tensor list");
+  }
+}
+
+inline void assertSingleElementOutput(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  if (tensors.size() != 1) {
+    fn("requires a single-element output tensor list");
+  }
+}
+
+inline void assertRootRank(
+    std::function<void(const std::string&)> fn,
+    int rank,
+    int size) {
+  if (rank < 0 || rank >= size) {
+    fn("invalid root rank: " + std::to_string(rank));
+  }
+}
+
+inline void assertRootTensor(
+    std::function<void(const std::string&)> fn,
+    int rank,
+    int size) {
+  if (rank < 0 || rank >= size) {
+    fn("invalid root tensor: " + std::to_string(rank));
+  }
+}
+
+inline void assertDense(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  const auto& layout = tensors[0].layout();
+  if (layout != at::kStrided) {
+    fn("only supports dense tensors");
+  }
+}
+
+inline void assertCPU(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  const auto& device = tensors[0].device();
+  if (device.type() != at::kCPU) {
+    fn("only supports CPU tensors");
+  }
+}
+
+inline void assertSameDevice(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  if (tensors.size() < 2) {
+    return;
+  }
+  const auto& device = tensors[0].device();
+  for (const auto i : c10::irange(1, tensors.size())) {
+    if (tensors[i].device() != device) {
+      fn("tensors should be on the same device");
+    }
+  }
+}
+
+inline void assertTypeAndSizesMatch(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors,
+    const at::DeprecatedTypeProperties& type,
+    const at::IntArrayRef& sizes) {
+  for (const auto i : c10::irange(tensors.size())) {
+    assertTypeMatch(fn, type, tensors, i);
+    assertSizesMatch(fn, sizes, tensors, i);
+  }
+}
+
+inline void assertTypeAndSizesMatch(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors,
+    const at::TensorOptions& options,
+    const at::IntArrayRef& sizes) {
+  for (const auto i : c10::irange(tensors.size())) {
+    assertTypeMatch(fn, options, tensors, i);
+    assertSizesMatch(fn, sizes, tensors, i);
+  }
+}
+
+inline void assertTypeAndSizesMatch(
+    std::function<void(const std::string&)> fn,
+    const at::ArrayRef<at::Tensor> tensors) {
+  const auto& options = tensors[0].options();
+  const auto sizes = tensors[0].sizes();
+  assertTypeAndSizesMatch(fn, tensors.slice(1), options, sizes);
+}
+
+// Copied from ATen/core/functional.h.
+template <typename F, typename T>
+inline auto fmap(T& inputs, const F& fn)
+    -> std::vector<decltype(fn(*inputs.begin()))> {
+  std::vector<decltype(fn(*inputs.begin()))> r;
+  r.reserve(inputs.size());
+  for (auto& input : inputs) {
+    r.push_back(fn(input));
+  }
+  return r;
+}
+
+// Copied from torch/csrc/utils/tensor_flatten.h.
+inline at::Tensor flattenDenseTensors(at::TensorList tensors) {
+  static const auto flatten = [](const at::Tensor& t) {
+    return t.contiguous().view({-1});
+  };
+  if (tensors.size() == 1) {
+    return flatten(tensors[0]);
+  }
+  return at::cat(::c10d::fmap(tensors, flatten));
+}
+
+inline at::Tensor newLikeFlat(
+    std::vector<std::vector<at::Tensor>>& tensors,
+    size_t deviceIdx) {
+  if (tensors.empty() || tensors[0].empty()) {
+    TORCH_CHECK(false, "Received an empty list");
+  }
+  if (deviceIdx >= tensors.size()) {
+    TORCH_CHECK(false, "Invalid device index");
+  }
+  auto& t = tensors[deviceIdx][0];
+  auto device = t.device();
+  for (const auto i : c10::irange(1, tensors[deviceIdx].size())) {
+    if (tensors[deviceIdx][i].device() != device) {
+      TORCH_CHECK(false, "Expecting all tensors on the same device");
+    }
+  }
+  at::DeviceGuard gpuGuard(device);
+  std::vector<int64_t> sizes{static_cast<int64_t>(tensors[deviceIdx].size())};
+  std::vector<int64_t> strides{static_cast<int64_t>(t.numel())};
+  sizes.insert(sizes.end(), t.sizes().begin(), t.sizes().end());
+  strides.insert(strides.end(), t.strides().begin(), t.strides().end());
+  return at::empty_strided(
+      sizes, strides, t.options().memory_format(c10::nullopt));
+}
+
+inline at::Tensor newLikeFlat(std::vector<at::Tensor>& tensors) {
+  if (tensors.empty()) {
+    TORCH_CHECK(false, "Received an empty list");
+  }
+  auto& t = tensors[0];
+  at::DeviceGuard gpuGuard(t.device());
+  std::vector<int64_t> sizes{static_cast<int64_t>(tensors.size())};
+  sizes.insert(sizes.end(), t.sizes().begin(), t.sizes().end());
+  return at::empty(sizes, t.options());
+}
+
+inline std::vector<std::vector<int64_t>> getSizes(
+    const std::vector<at::Tensor>& tensors) {
+  std::vector<std::vector<int64_t>> sizes(tensors.size());
+  for (const auto i : c10::irange(tensors.size())) {
+    sizes[i] = tensors[i].sizes().vec();
+  }
+  return sizes;
+}
+
+inline std::vector<int> getDevices(const std::vector<at::Tensor>& tensors) {
+  std::vector<int> devices(tensors.size(), -1);
+  if (tensors[0].device().is_cuda()) {
+    for (const auto i : c10::irange(tensors.size())) {
+      devices[i] = tensors[i].storage().device().index();
+    }
+  }
+  return devices;
+}
+
+template <typename T>
+inline T* getDataPointer(const at::Tensor& tensor) {
+  // This method is only used in ProcessGroupGloo for now. Call sites must make
+  // sure that the input tensor is contiguous. It is OK if the tensor does not
+  // start from the beginning of the storage. For example, it could come from
+  // chunk(..., dim=0)[1]. Hence, we need to use data_ptr() instead of
+  // tensor.storage().data()
+  // NB: not using tensor.data<T>() because tensor is not aware of gloo::TYPE
+  return static_cast<T*>(tensor.data_ptr());
+}
+
+template <typename T>
+std::vector<T*> getDataPointers(const std::vector<at::Tensor>& tensors) {
+  std::vector<T*> ptrs(tensors.size());
+  for (const auto i : c10::irange(tensors.size())) {
+    ptrs[i] = getDataPointer<T>(tensors[i]);
+  }
+  return ptrs;
+}
+
+// For alltoall split size sanity check
+inline void checkSplitSizes(
+    const std::vector<int64_t>& split_sizes,
+    const at::Tensor& tensor,
+    int group_size) {
+  if (split_sizes.empty()) {
+    TORCH_CHECK(
+        tensor.size(0) % group_size == 0,
+        "Tensor's dim 0 does not divide equally across group size");
+  } else {
+    TORCH_CHECK(
+        split_sizes.size() == static_cast<size_t>(group_size),
+        "Number of tensor splits not equal to group size");
+    const auto sum = c10::sum_integers(split_sizes);
+    TORCH_CHECK(
+        sum == tensor.size(0), "Split sizes doesn't match total dim 0 size");
+  }
+}
+
+// Compute alltoall lengths and offsets, handling multi-dimension tensors
+template <typename T>
+size_t computeLengthsAndOffsets(
+    const std::vector<int64_t>& split_sizes,
+    const at::Tensor& tensor,
+    std::vector<T>* lengths,
+    std::vector<T>* offsets) {
+  size_t group_size = lengths->size();
+  bool equal_splits = false;
+  size_t dim0_size = tensor.size(0);
+  size_t row_size = (dim0_size ? tensor.numel() / dim0_size : 1);
+  size_t split_size = 0;
+  size_t offset = 0;
+
+  if (split_sizes.empty()) {
+    equal_splits = true;
+    split_size = tensor.size(0) / group_size;
+  }
+  for (const auto i : c10::irange(group_size)) {
+    size_t length = row_size * (equal_splits ? split_size : split_sizes[i]);
+    (*lengths)[i] = length;
+    (*offsets)[i] = offset;
+    // TODO: see if we should add overflow protection for offset
+    offset += length;
+  }
+  return offset;
+}
+
+template <typename T>
+size_t computeLengthsAndOffsets(
+    const std::vector<at::Tensor>& tensors,
+    std::vector<T>* lengths,
+    std::vector<T>* offsets) {
+  size_t group_size = lengths->size();
+  size_t offset = 0;
+  for (const auto i : c10::irange(group_size)) {
+    size_t length = tensors[i].numel();
+    (*lengths)[i] = length;
+    (*offsets)[i] = offset;
+    offset += length;
+  }
+  return offset;
+}
+
+using RankType = uint32_t;
+using SizeType = uint64_t;
+
+// `errno` is only meaningful when it fails. E.g., a  successful `fork()` sets
+// `errno` to `EINVAL` in child process on some macos
+// (https://stackoverflow.com/a/20295079), and thus `errno` should really only
+// be inspected if an error occurred.
+//
+// `success_cond` is an expression used to check if an error has happend. So for
+// `fork()`, we can use `SYSCHECK(pid = fork(), pid != -1)`. The function output
+// is stored in variable `__output` and may be used in `success_cond`.
+#ifdef _WIN32
+#define SYSCHECK(expr, success_cond)                                      \
+  while (true) {                                                          \
+    auto __output = (expr);                                               \
+    auto errno_local = WSAGetLastError();                                 \
+    (void)__output;                                                       \
+    if (!(success_cond)) {                                                \
+      if (errno == EINTR) {                                               \
+        continue;                                                         \
+      } else if (                                                         \
+          errno_local == WSAETIMEDOUT || errno_local == WSAEWOULDBLOCK) { \
+        C10_THROW_ERROR(DistNetworkError, "Socket Timeout");              \
+      } else {                                                            \
+        C10_THROW_ERROR(DistNetworkError, std::strerror(errno_local));    \
+      }                                                                   \
+    } else {                                                              \
+      break;                                                              \
+    }                                                                     \
+  }
+#else
+#define SYSCHECK(expr, success_cond)                             \
+  while (true) {                                                 \
+    auto __output = (expr);                                      \
+    (void)__output;                                              \
+    if (!(success_cond)) {                                       \
+      if (errno == EINTR) {                                      \
+        continue;                                                \
+      } else if (errno == EAGAIN || errno == EWOULDBLOCK) {      \
+        C10_THROW_ERROR(DistNetworkError, "Socket Timeout");     \
+      } else {                                                   \
+        C10_THROW_ERROR(DistNetworkError, std::strerror(errno)); \
+      }                                                          \
+    } else {                                                     \
+      break;                                                     \
+    }                                                            \
+  }
+#endif
+
+// Most functions indicate error by returning `-1`. This is a helper macro for
+// this common case with `SYSCHECK`.
+// Since SOCKET_ERROR = -1 in MSVC, so also leverage SYSCHECK_ERR_RETURN_NEG1
+#define SYSCHECK_ERR_RETURN_NEG1(expr) SYSCHECK(expr, __output != -1)
+
+namespace tcputil {
+
+// Send and receive
+template <typename T>
+void sendBytes(
+    int socket,
+    const T* buffer,
+    size_t length,
+    bool moreData = false) {
+  size_t bytesToSend = sizeof(T) * length;
+  if (bytesToSend == 0) {
+    return;
+  }
+
+  auto bytes = reinterpret_cast<const uint8_t*>(buffer);
+  uint8_t* currentBytes = const_cast<uint8_t*>(bytes);
+
+  int flags = 0;
+
+#ifdef MSG_MORE
+  if (moreData) { // there is more data to send
+    flags |= MSG_MORE;
+  }
+#endif
+
+// Ignore SIGPIPE as the send() return value is always checked for error
+#ifdef MSG_NOSIGNAL
+  flags |= MSG_NOSIGNAL;
+#endif
+
+  while (bytesToSend > 0) {
+    ssize_t bytesSent;
+    SYSCHECK_ERR_RETURN_NEG1(
+        bytesSent =
+            ::send(socket, (const char*)currentBytes, bytesToSend, flags))
+    if (bytesSent == 0) {
+      C10_THROW_ERROR(DistNetworkError, std::strerror(ECONNRESET));
+    }
+
+    bytesToSend -= bytesSent;
+    currentBytes += bytesSent;
+  }
+}
+
+template <typename T>
+void recvBytes(int socket, T* buffer, size_t length) {
+  size_t bytesToReceive = sizeof(T) * length;
+  if (bytesToReceive == 0) {
+    return;
+  }
+
+  auto bytes = reinterpret_cast<uint8_t*>(buffer);
+  uint8_t* currentBytes = bytes;
+
+  while (bytesToReceive > 0) {
+    ssize_t bytesReceived;
+    SYSCHECK_ERR_RETURN_NEG1(
+        bytesReceived = recv(socket, (char*)currentBytes, bytesToReceive, 0))
+    if (bytesReceived == 0) {
+      C10_THROW_ERROR(DistNetworkError, std::strerror(ECONNRESET));
+    }
+
+    bytesToReceive -= bytesReceived;
+    currentBytes += bytesReceived;
+  }
+}
+
+// send a vector's length and data
+template <typename T>
+void sendVector(int socket, const std::vector<T>& vec, bool moreData = false) {
+  SizeType size = vec.size();
+  sendBytes<SizeType>(socket, &size, 1, true);
+  sendBytes<T>(socket, vec.data(), size, moreData);
+}
+
+// receive a vector as sent in sendVector
+template <typename T>
+std::vector<T> recvVector(int socket) {
+  SizeType valueSize;
+  recvBytes<SizeType>(socket, &valueSize, 1);
+  std::vector<T> value(valueSize);
+  recvBytes<T>(socket, value.data(), value.size());
+  return value;
+}
+
+// this is only for convenience when sending rvalues
+template <typename T>
+void sendValue(int socket, const T& value, bool moreData = false) {
+  sendBytes<T>(socket, &value, 1, moreData);
+}
+
+template <typename T>
+T recvValue(int socket) {
+  T value;
+  recvBytes<T>(socket, &value, 1);
+  return value;
+}
+
+// send a string's length and data
+inline void sendString(
+    int socket,
+    const std::string& str,
+    bool moreData = false) {
+  SizeType size = str.size();
+  sendBytes<SizeType>(socket, &size, 1, true);
+  sendBytes<char>(socket, str.data(), size, moreData);
+}
+
+// receive a string as sent in sendString
+inline std::string recvString(int socket) {
+  SizeType valueSize;
+  recvBytes<SizeType>(socket, &valueSize, 1);
+  std::vector<char> value(valueSize);
+  recvBytes<char>(socket, value.data(), value.size());
+  return std::string(value.data(), value.size());
+}
+
+} // namespace tcputil
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/debug.h

@@ -0,0 +1,23 @@
+// Copyright (c) Meta Platforms, Inc. and its affiliates.
+// All rights reserved.
+//
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree.
+
+#pragma once
+
+#include <c10/macros/Macros.h>
+
+namespace c10d {
+
+enum class DebugLevel { Off = 0, Info = 1, Detail = 2 };
+
+TORCH_API void setDebugLevel(DebugLevel level);
+
+// Sets the debug level based on the value of the `TORCH_DISTRIBUTED_DEBUG`
+// environment variable.
+TORCH_API void setDebugLevelFromEnvironment();
+
+TORCH_API DebugLevel debug_level() noexcept;
+
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/distributed/c10d/error.h

@@ -0,0 +1,56 @@
+// Copyright (c) Facebook, Inc. and its affiliates.
+// All rights reserved.
+//
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree.
+
+#pragma once
+
+#include <cstring>
+#include <system_error>
+
+#include <fmt/format.h>
+
+namespace fmt {
+
+template <>
+struct formatter<std::error_category> {
+  constexpr decltype(auto) parse(format_parse_context& ctx) const {
+    return ctx.begin();
+  }
+
+  template <typename FormatContext>
+  decltype(auto) format(const std::error_category& cat, FormatContext& ctx)
+      const {
+    if (std::strcmp(cat.name(), "generic") == 0) {
+      return fmt::format_to(ctx.out(), "errno");
+    } else {
+      return fmt::format_to(ctx.out(), "{} error", cat.name());
+    }
+  }
+};
+
+template <>
+struct formatter<std::error_code> {
+  constexpr decltype(auto) parse(format_parse_context& ctx) const {
+    return ctx.begin();
+  }
+
+  template <typename FormatContext>
+  decltype(auto) format(const std::error_code& err, FormatContext& ctx) const {
+    return fmt::format_to(
+        ctx.out(), "({}: {} - {})", err.category(), err.value(), err.message());
+  }
+};
+
+} // namespace fmt
+
+namespace c10d {
+namespace detail {
+
+inline std::error_code lastError() noexcept {
+  return std::error_code{errno, std::generic_category()};
+}
+
+} // namespace detail
+} // namespace c10d

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend.h

@@ -0,0 +1,119 @@
+#pragma once
+
+#include <ATen/core/builtin_function.h>
+#include <ATen/core/stack.h>
+#include <torch/csrc/jit/backends/backend_interface.h>
+#include <torch/custom_class.h>
+
+namespace torch {
+namespace jit {
+namespace {
+// NOLINTNEXTLINE(clang-diagnostic-unneeded-internal-declaration)
+inline c10::FunctionSchema getIsAvailableSchema() {
+  c10::Argument self("self", c10::AnyType::get());
+  c10::Argument available("available", c10::BoolType::get());
+  c10::FunctionSchema preprocessor_schema(
+      "is_available",
+      /*overload_name=*/"",
+      /*arguments=*/{self},
+      /*returns=*/{available});
+  return preprocessor_schema;
+}
+
+constexpr static auto kBackendsNamespace = "__backends__";
+
+// NOLINTNEXTLINE(clang-diagnostic-unneeded-internal-declaration)
+inline c10::FunctionSchema getCompileSchema() {
+  c10::Argument self("self", c10::AnyType::get());
+  c10::Argument mod("processed", c10::AnyType::get());
+  auto any_dict_ty =
+      c10::DictType::create(c10::StringType::get(), c10::AnyType::get());
+  c10::Argument method_compile_spec("method_compile_spec", any_dict_ty);
+  c10::Argument handles("handles", any_dict_ty);
+
+  c10::FunctionSchema compile_schema(
+      "compile",
+      /*overload_name=*/"",
+      /*arguments=*/{self, mod, method_compile_spec},
+      /*returns=*/{handles});
+  return compile_schema;
+}
+
+// NOLINTNEXTLINE(clang-diagnostic-unneeded-internal-declaration)
+inline c10::FunctionSchema getExecuteSchema() {
+  auto any_list_ty = c10::ListType::create(c10::AnyType::get());
+  c10::Argument self("self", c10::AnyType::get());
+  c10::Argument handle("handle", c10::AnyType::get());
+  c10::Argument input("input", any_list_ty);
+  c10::Argument output("output", any_list_ty);
+  return c10::FunctionSchema(
+      "execute",
+      /*overload_name=*/"",
+      /*arguments=*/{self, handle, input},
+      /*returns=*/{output});
+}
+
+template <typename TBackendInterface>
+std::function<void(Stack&)> getIsAvailableFunc() {
+  return [](Stack& stack) {
+    auto self = pop(stack).toCustomClass<TBackendInterface>();
+    auto ret = self->is_available();
+    push(stack, ret);
+  };
+}
+
+template <typename TBackendInterface>
+std::function<void(Stack&)> getCompileFunc() {
+  return [](Stack& stack) {
+    auto method_compile_spec = pop(stack).toGenericDict();
+    auto processed = pop(stack);
+    auto self = pop(stack).toCustomClass<TBackendInterface>();
+    auto ret = self->compile(processed, method_compile_spec);
+    push(stack, ret);
+  };
+}
+
+template <typename TBackendInterface>
+std::function<void(Stack&)> getExecuteFunc() {
+  return [](Stack& stack) {
+    auto args = pop(stack);
+    auto handle = pop(stack);
+    auto self = pop(stack);
+    auto backend = self.toCustomClass<TBackendInterface>();
+    auto res = backend->execute(handle, args.toList());
+    push(stack, res);
+  };
+}
+} // namespace
+
+// Static registration API for backends.
+template <class TBackendInterface>
+class backend {
+  static_assert(
+      std::is_base_of<PyTorchBackendInterface, TBackendInterface>::value,
+      "torch::jit::backend<T> requires T to inherit from PyTorchBackendInterface");
+  std::string backend_name_;
+
+ public:
+  // Registers a new backend with /p name, and the given /p preprocess
+  // function.
+  backend(const std::string& name) : backend_name_(name) {
+    static auto cls = torch::class_<TBackendInterface>(kBackendsNamespace, name)
+                          .def(torch::init<>())
+                          ._def_unboxed(
+                              "is_available",
+                              getIsAvailableFunc<TBackendInterface>(),
+                              getIsAvailableSchema())
+                          ._def_unboxed(
+                              "compile",
+                              getCompileFunc<TBackendInterface>(),
+                              getCompileSchema())
+                          ._def_unboxed(
+                              "execute",
+                              getExecuteFunc<TBackendInterface>(),
+                              getExecuteSchema());
+  }
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_debug_handler.h

@@ -0,0 +1,140 @@
+#pragma once
+#include <ATen/core/ivalue.h>
+
+#include <torch/csrc/jit/backends/backend_detail.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/ir/scope.h>
+
+#include <atomic>
+
+namespace torch {
+namespace jit {
+
+/*
+ *  BackendDebugHandleManager is responsible for issuing debug handles to
+ *  backends. Debug handles are associated with nodes of a graph.
+ *  BackendDebugHandleManager also maintains a map
+ *  [debug-handle, DebugInfoTuple = {source range, inlined callstack ptr]} that
+ *  will help generate a callstack for exception raised using debug handles.
+ *  Effectively debug handles are something that is given to backend and later
+ *  when an exception occurs in the backend, backend can tell, using debug
+ *  handle, that an exception occurred here. Then the runtime can generate
+ *  callstack correspoding to the exception.
+ *  There are two parts to BackendDebugHandleManager:
+ *  1. static std::atomic debug_handle
+ *  2. Map of [debug-handle, DebugInfoTuple]
+ *
+ *  About 1:
+ *  Why do they have to be unique. The reason is that by ensuring
+ *  uniqueness of debug handles, we remove the burden of another layer of
+ *  mapping where we need to say this set of debug handles were generated for
+ *  this lowered module or this bytecode function. This simplifies the API for
+ *  serialization since debug handles can uniquely identify DebugInfoTuple.
+ *  Thus simplifies the runtime API for throwing exception. Exception throwing
+ *  only needs to know debug_handle and not which module or method threw it.
+ *  There are 2 issues to keep in mind, though,for static std::atomic
+ *  debug_handle: A. Performance implications of using atomic variable. However
+ *  this is only used for compilation so we assume to absorb some of that
+ *  penalty. Plus if there is no contention then we should have less to worry
+ *  about. B. If repeated compilation is part of a long running process then we
+ *  may overflow int64_t. We may detect and fail on this. For now this is not
+ *  done.
+ *
+ *  Now about 2:
+ *  There are two usecases for [debug-handle, DebugInfoTuple]
+ *  A. During bytecode generation the DebugInfoTuple corresponding to the nodes
+ *  of the inlined graph being serialized, are stored in this object and a
+ *  unique debug handle is returned. This unique debug handle is stored in
+ *  mobile_debug info for pytorch lite models. It will be used for raising
+ *  exceptions as well as profiling. B. During backend lowering, each backend's
+ *  preprocess/compile method can compile method's graph and serialize those
+ *  methods. Once the method is lowered to backend, graph is essentially lost.
+ *  Without access to graph it is hard to generate model level debug info. Thus
+ *  the debug handles provide a way to map nodes of the graph to the model level
+ *  debug info.
+ *
+ *  During byte-code model serialization, [debug-handle, DebugInfoTuple] is
+ *  serialized. Now we know a. debug handles and b. how to map debug handles to
+ *  model source code. Thus we can either do eager symbolication by converting
+ *  debug handles to corresponding source code at runtime, or do lazy
+ *  symbolicattion offline.
+ *
+ *  Note that it is not necessary to serialize [debug-handle, DebugInfoTuple]
+ *  corresponding to lowered backend if the lowering process, that is
+ *  preprocess/compile, and execution happens in the same session, then eager
+ *  symbolication can be employed.
+ *
+ *  Now how does BackendDebugHandleManager capture all of the above?
+ *  By providing two API.
+ *  1. getNextDebugHandle which given a Node* returns a unique debug handle,
+ *     that will uniquely identify DebugInfoTuple.
+ *     and
+ *  2. getCallStackPtrMap which returns the map
+ *     [debug-handle, DebugInfoTuple]
+ *
+ *  1 provides debug handles to backends and 2 provides runtime a way to map
+ *  debug handles to source level debug info.
+ *
+ *  So why does debug handle map to DebugInfoTuple = {source range and inlined
+ *  cs}? {debug_handle, source_range_tag, serialized_callstack} Take this
+ *  example: class L(nn.Module): def __init__(self):
+ *      ...
+ *    def forward(self, x):
+ *      return x * 5
+ *  class M(nn.Module):
+ *    def __init__(self):
+ *      ...
+ *    def forward(self, x):
+ *      return x - 2
+ *  class N(nn.Module):
+ *    def __init__(self):
+ *      self.m = M()
+ *    def forward(self, x):
+ *      return self.m(x) + 3
+ *  m = torch.jit.script(N())
+ *  Once you inline m's forward method, m.forward.graph will look something
+ *  like this
+ *  graph(%self...):
+ *   %x = aten::mul(..)
+ *   %x = aten::sub(x, ..)
+ *   %y = aten::add(x, ..)
+ *   ..
+ *  Inlined callstack ptr for these two nodes will look like:
+ *  aten::mul's inlined CS (callstack): [N.forward, source range] -> [M.forward,
+ *  source range] aten::sub's inlined CS (callstack): [N.forward, source range]
+ *  aten::add's inlined CS: null
+ *  mul node's inlined CS contains only information about the callsites' source
+ *  range The information about mul node's source range ('return x * 5') is not
+ *  available in its inlined CS. It is rather part of node's source range
+ *  instead of inlined CS. Thus to get full stack: [N.forward, source range] ->
+ *  [M.forward, source range] -> [aten::mul's source range] We need to track
+ *  mul's source range and inlined CS both.
+ */
+
+using BackendDebugInfoMapType =
+    std::unordered_map<torch::jit::DebugHandleType, DebugInfoTuple>;
+
+/*
+ * This class is used to generate debug info map.
+ * backend's preprocess will call generate_debug_handles (see
+ * backend_detail.cpp), which uses debug_handle_manager to generate debug
+ * handles. When lowering process finishes, calling stopRecording will
+ * return debug info map from debug_handle_manager
+ */
+class TORCH_API BackendDebugInfoRecorder {
+ public:
+  BackendDebugInfoRecorder() = default;
+  int64_t getNextDebugHandle(const Node* node);
+  // Reason this is not done as RAII is that work done in stopRecording
+  // can throw, and throwing with dtor will call terminate and thus voids any
+  // exception catching at a higher level.
+  BackendDebugInfoMapType stopRecording();
+  NodeToDebugHandle generate_debug_handles(const std::shared_ptr<Graph>& graph);
+
+ private:
+  static std::atomic<DebugHandleType> unique_debug_handle_;
+  BackendDebugInfoMapType handles_to_inlined_callstack_ptrs_;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_debug_info.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#ifndef BUILD_LITE_INTERPRETER
+#include <torch/csrc/jit/backends/backend_debug_handler.h>
+#endif
+#include <torch/custom_class.h>
+
+namespace torch {
+namespace jit {
+
+constexpr static auto kBackendUtilsNamespace = "backendutils";
+constexpr static auto kBackendDebugInfoClass = "BackendDebugInfo";
+
+#ifndef BUILD_LITE_INTERPRETER
+/*
+ * Custom class for holding debug information in lowered modules, intended
+ * purely for keeping this information to be later serialized outside of the
+ * lowered module itself.
+ * Its usage pattern is:
+ * 1. LoweredModule declares an instance of this class in __backend_debug_info
+ * 2. During serialization, __backend_debug_info is used to obtain the debug
+ *    information.
+ * 3. The contents of LoweredModule.__backend_debug_info are not serialized
+ *    within the LoweredModule itself.
+ */
+class TORCH_API PyTorchBackendDebugInfo : public torch::CustomClassHolder {
+ public:
+  PyTorchBackendDebugInfo() = default;
+
+  c10::optional<BackendDebugInfoMapType>& getDebugInfoMap() {
+    return debug_info_map_;
+  }
+
+  void setDebugInfoMap(BackendDebugInfoMapType&& debug_info_map) {
+    debug_info_map_ = std::move(debug_info_map);
+  }
+
+ private:
+  c10::optional<BackendDebugInfoMapType> debug_info_map_;
+};
+
+#else
+
+/*
+ * Dummy instance exists for the following reason:
+ * __backend_debug_info is of type BackendDebugInfo which is a torchbind'
+ * class backed by cpp class PyTorchBackendDebugInfo.
+ * PyTorchBackendDebugInfo, depends on ir.h., scope.h, source_range etc.
+ * We dont include this on lite interpreter side. Thus on lite interpreter side
+ * we cannot have valid definition of PyTorchBackendDebugInfo. However we do not
+ * need valid instance of __backend_debug_info in lite interpreter anyway as we
+ * dont serialize this info as part of LowerdModule as mentioned ealrier.
+ * However since LoweredModule has registered attribute of __backend_debug_info
+ * we still need to make sure that BackendDebugInfo is registered with
+ * TorchScript. However in this instance it does not have to be backed by
+ * PyTorchBackendDebugInfo, so we create a dummy PyTorchBackendDebugInfoDummy
+ * just for this purpose.
+ */
+class PyTorchBackendDebugInfoDummy : public torch::CustomClassHolder {
+ public:
+  PyTorchBackendDebugInfoDummy() = default;
+};
+#endif
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_detail.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <torch/csrc/jit/api/module.h>
+
+#include <ATen/core/jit_type.h>
+
+#include <functional>
+
+namespace torch {
+namespace jit {
+
+using DebugHandleType = int64_t;
+
+using NodeToDebugHandle = std::unordered_map<Node*, DebugHandleType>;
+
+using BackendDebugHandleGenerator =
+    std::function<NodeToDebugHandle(const std::shared_ptr<Graph>&)>;
+
+namespace detail {
+
+using BackendPreprocessFunction = std::function<c10::IValue(
+    const Module&,
+    const c10::Dict<IValue, IValue>&,
+    const BackendDebugHandleGenerator& generate_debug_handles)>;
+
+TORCH_API void registerBackendPreprocessFunction(
+    const std::string& name,
+    const BackendPreprocessFunction& preprocess);
+
+bool hasBackendPreprocessFunction(const std::string& name);
+
+BackendPreprocessFunction getBackendPreprocessFunction(const std::string& name);
+
+TORCH_API Module codegen_backend_module(
+    const std::string& backend_name,
+    const Module& orig_module,
+    const c10::Dict<IValue, IValue>& method_compile_spec,
+    const c10::DictTypePtr& any_dict_ty);
+} // namespace detail
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_exception.h

@@ -0,0 +1,54 @@
+#pragma once
+#include <c10/util/Exception.h>
+
+namespace c10 {
+class TORCH_API BackendRuntimeException : public c10::Error {
+ public:
+  // Use debug_handle to throw exception
+  BackendRuntimeException(
+      SourceLocation loc,
+      std::string msg,
+      int64_t debug_handle)
+      : c10::Error(loc, msg) {
+    debug_handles.push_back(debug_handle);
+  }
+  // If rethrowing, can push another debug_handle
+  // This is useful in couple of scenarios.
+  // 1. A submodule is lowered and lite interperter has CallMethod
+  //    to lowered module's method. In this case lowered module will throw with
+  //    a handle, plus there will be another debug handle corresponding
+  //    to the CallMethod node in lite interpreter. Both together give complete
+  //    trace. This function allows lite interpreter to rethrow with debug
+  //    handle it has for CallMethod.
+  // 2. Another scenarios is when lite interperter can make function calls or
+  //    the lowered backend also has function call ability. Thus we have
+  //    multiple function frames. Now we need a stack of handles to symbolicate
+  //    entire stack trace.
+  void pushDebugHandle(int64_t debug_handle) {
+    debug_handles.push_back(debug_handle);
+  }
+  const std::vector<int64_t>& getDebugHandles() {
+    return debug_handles;
+  }
+
+ private:
+  // Stores stack of debug handles.
+  std::vector<int64_t> debug_handles;
+};
+
+} // namespace c10
+#define TORCH_DELEGATED_BACKEND_THROW(cond, msg, debug_handle) \
+  if (C10_UNLIKELY_OR_CONST(!(cond))) {                        \
+    throw ::c10::BackendRuntimeException(                      \
+        {__func__, __FILE__, static_cast<uint32_t>(__LINE__)}, \
+        msg,                                                   \
+        debug_handle);                                         \
+  }
+
+#define TORCH_DELEGATED_BACKEND_RETHROW(e, debug_handle) \
+  do {                                                   \
+    e.pushDebugHandle(debug_handle);                     \
+    throw;                                               \
+  } while (false)
+
+#define DEBUG_HANDLE_UNKNOWN -1

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_init.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <torch/csrc/jit/python/pybind.h>
+#include <torch/csrc/utils/pybind.h>
+
+namespace torch {
+namespace jit {
+// Initialize Python bindings for JIT to_<backend> functions.
+void initJitBackendBindings(PyObject* module);
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_interface.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <torch/custom_class.h>
+
+namespace torch {
+namespace jit {
+
+// Interface for a JIT backend.
+class TORCH_API PyTorchBackendInterface : public torch::CustomClassHolder {
+ public:
+  PyTorchBackendInterface() noexcept;
+  ~PyTorchBackendInterface() override;
+
+  // Returns true if the backend is available to process delegation calls.
+  virtual bool is_available() = 0;
+
+  // Compile the module contained in \p processed using the details provided in
+  // \p method_compile_spec for each module method that should be compiled for
+  // the backend. \p method_compile_spec should be of type Dict<string, Any>.
+  // \returns a dictionary of type Dict<string, Any> that contains a backend
+  // handle each method that can run on the backend (i.e. each key in \p
+  // method_compile_spec).
+  virtual c10::impl::GenericDict compile(
+      c10::IValue processed,
+      c10::impl::GenericDict method_compile_spec) = 0;
+
+  // Execute the method specified by \p handle using \p inputs. \returns the
+  // outputs as a tuple.
+  virtual c10::impl::GenericList execute(
+      c10::IValue handle,
+      c10::impl::GenericList inputs) = 0;
+};
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_preprocess.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <torch/csrc/jit/backends/backend_detail.h>
+namespace torch {
+namespace jit {
+class backend_preprocess_register {
+  std::string backend_name_;
+
+ public:
+  backend_preprocess_register(
+      const std::string& name,
+      const detail::BackendPreprocessFunction& preprocess)
+      : backend_name_(name) {
+    detail::registerBackendPreprocessFunction(name, preprocess);
+  }
+};
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/backends/backend_resolver.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <torch/csrc/jit/frontend/resolver.h>
+
+namespace torch {
+namespace jit {
+// Create a Resolver for use in generating LoweredModules for specific backends.
+TORCH_API std::shared_ptr<Resolver> loweredModuleResolver();
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/codegen/cuda/interface.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <c10/macros/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/passes/pass_manager.h>
+#include <torch/csrc/jit/runtime/profiling_record.h>
+
+/*
+ * This file contains APIs for cuda fuser;
+ *
+ * We use an empty static struct to hold the function pointers, which are
+ * registered separately. This is to support cpu-only compilation.
+ * Registration is done in torch/csrc/jit/codegen/cuda/register_interface.cpp
+ */
+
+namespace torch {
+namespace jit {
+namespace fuser {
+namespace cuda {
+
+TORCH_API std::atomic<bool>& getCudaFusionGuardMode();
+
+TORCH_API bool getSingletonFusion();
+TORCH_API bool setSingletonFusion(bool value);
+TORCH_API bool getHorizontalFusion();
+TORCH_API bool setHorizontalFusion(bool value);
+
+// dummy struct to allow API registration
+struct CudaFuserInterface {
+  void (*fn_compile_n)(Node*) = nullptr;
+  void (*fn_run_n_s)(const Node*, Stack&) = nullptr;
+  void (*fn_fuse_graph)(std::shared_ptr<Graph>&) = nullptr;
+  bool (*fn_can_fuse_n)(const Node*) = nullptr;
+  void (*fn_insert_profile_inodes)(ProfilingRecord* pr) = nullptr;
+  bool (*fn_profile_n)(const Node*) = nullptr;
+  bool (*fn_skip_n)(const std::string&, bool flip) = nullptr;
+};
+
+// Get interface, this is used by registration and user facing API internally
+TORCH_API CudaFuserInterface* getFuserInterface();
+
+TORCH_API void compileFusionGroup(Node* fusion_node);
+TORCH_API void runFusionGroup(const Node* fusion_node, Stack& stack);
+TORCH_API void fuseGraph(std::shared_ptr<Graph>&);
+TORCH_API bool canFuseNode(const Node* node);
+TORCH_API void InsertProfileNodesForCUDAFuser(ProfilingRecord* pr);
+TORCH_API bool profileNode(const Node* node);
+
+TORCH_API bool skipNode(const std::string& symbol_str, bool flip = true);
+
+TORCH_API bool isEnabled();
+TORCH_API bool setEnabled(bool is_enabled);
+TORCH_API bool canBeEnabled();
+
+} // namespace cuda
+} // namespace fuser
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/builtin_functions.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/api/module.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API const std::vector<Function*>& getAllBuiltinFunctionsFor(Symbol name);
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/canonicalize_modified_loop.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <memory>
+
+#include <torch/csrc/Export.h>
+
+namespace torch {
+namespace jit {
+
+struct Graph;
+
+// Transforms loops so that they can be represented as python
+// for or while loops
+TORCH_API void CanonicalizeModifiedLoops(std::shared_ptr<Graph>& graph);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/concrete_module_type.h

@@ -0,0 +1,241 @@
+#pragma once
+
+#include <ATen/core/ivalue.h>
+#include <torch/csrc/jit/api/module.h>
+#include <torch/csrc/jit/python/pybind_utils.h>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace torch {
+namespace jit {
+
+enum class IterableModuleKind { NONE, LIST, DICT, PARAMLIST, PARAMDICT };
+class ConcreteModuleType;
+
+// You can think of an nn.Module as a template that corresponds to a family of
+// JIT types. The template "arguments" are things like the constant values.
+// e.g.
+//   class M(nn.Module):
+//        __constants__ = ["const"]
+//        ...
+//
+// Is similar to writing the following in C++:
+//
+//    template<TConst>
+//    class M {
+//       ...
+//    }
+//
+// We need to consider each different member of the type family a different JIT
+// type because, e.g. different constant values lead to different versions of
+// the same method.
+//
+// ConcreteModuleType corresponds to a single member of the type family, with
+// all template arguments fully specified. Two Modules that share a
+// ConcreteModuleType can share a JIT type, and vice versa.
+//
+// Why not just use a JIT type to represent concrete types? Because constants,
+// function attributes, etc. are currently not representable in the type system,
+// so this acts a non-first-class way of tracking concrete types.
+//
+// ConcreteModuleType is also the source of truth for servicing all
+// ModuleValue::attr calls. This is so we can guarantee that if two Module's
+// share a JIT type (and thus a ConcreteModuleType), then they behave the same
+// way when you access attributes on them.
+
+// ConcreteModuleType has two phases.
+// 1. Creation: First we build it up, during the ScriptModule conversion
+// process. This is represented by ConcreteModuleTypeBuilder.
+//    ...then the converter calls ConcreteModuleTypeBuilder::build(), producing
+//    a
+//       ConcreteModuleType ready for querying.
+// 2. Querying: We use ConcreteModuleType as a source of truth for
+// ModuleValue::attr calls during method compilation.
+
+// Represents a concrete type during in the process for construction. We use
+// this to decide whether we can share types between modules.
+class VISIBILITY_HIDDEN ConcreteModuleTypeBuilder {
+ public:
+  explicit ConcreteModuleTypeBuilder(py::object pyClass) {
+    TORCH_INTERNAL_ASSERT(pyClass);
+    pyClass_ = std::move(pyClass);
+  }
+
+  void addConstant(std::string name, py::object value);
+  void addConstant(std::string name, IValue value);
+  void addAttribute(
+      std::string name,
+      const TypePtr& type,
+      bool isParameter,
+      bool isBuffer);
+  void addFunctionAttribute(
+      std::string name,
+      const TypePtr& type,
+      py::object pyFunction);
+
+  void addModule(std::string name, std::shared_ptr<ConcreteModuleType> meta);
+
+  void addForwardHook(py::object hook);
+  void addForwardPreHook(py::object pre_hook);
+
+  void addOverload(
+      std::string methodName,
+      std::vector<std::string> overloadedMethodNames);
+  void addBuiltinFunction(std::string name, const std::string& symbol_name);
+  void addFailedAttribute(std::string name, std::string failureReason);
+  void addIgnoredAttribute(std::string name);
+  void setIterableModuleKind(IterableModuleKind kind);
+
+  // If a ConcreteModuleType is poisoned, it will never compare equal to any
+  // other concrete type
+  void setPoisoned();
+
+  std::shared_ptr<ConcreteModuleType> build() const {
+    return std::make_shared<ConcreteModuleType>(*this);
+  }
+
+  // This determines whether two modules can share a type. The container structs
+  // used by ConcreteModuleType have been defined such that operator==
+  // implements a meaningful comparison in that context.
+  bool equals(const ConcreteModuleTypeBuilder& other) const;
+
+  struct FunctionAttribute {
+    FunctionTypePtr function_;
+    py::object pyFunction_;
+
+    friend bool operator==(
+        const FunctionAttribute& lhs,
+        const FunctionAttribute& rhs) {
+      // Functions are not first class, so we can't do type comparison like a
+      // regular attribute. So we do a pointer equality check on the actual
+      // Python function object.
+      return lhs.pyFunction_.is(rhs.pyFunction_);
+    }
+  };
+
+  struct Attribute {
+    Attribute(TypePtr type, bool isParam, bool isBuffer)
+        : type_(std::move(type)), isParam_(isParam), isBuffer_(isBuffer) {}
+
+    friend bool operator==(const Attribute& lhs, const Attribute& rhs) {
+      return *(lhs.type_) == *(rhs.type_) && lhs.isParam_ == rhs.isParam_;
+    }
+    TypePtr type_;
+    bool isParam_;
+    bool isBuffer_;
+  };
+
+  struct ModuleInfo {
+    ModuleInfo(std::string name, std::shared_ptr<ConcreteModuleType> meta)
+        : name_(std::move(name)), meta_(std::move(meta)) {}
+
+    friend bool operator==(const ModuleInfo& lhs, const ModuleInfo& rhs);
+
+    std::string name_;
+    std::shared_ptr<ConcreteModuleType> meta_;
+  };
+
+ private:
+  ConcreteModuleTypeBuilder() = default;
+  ClassTypePtr createTypeFromThis() const;
+
+  // If true, this type will never compare equally to anything else. This is
+  // used if we want to ensure that this type is not shared (for example, if it
+  // came from a traced module)
+  bool isPoisoned_ = false;
+
+  // The value of any constants defined by the module.
+  std::unordered_map<std::string, IValue> constants_;
+  // The types of any attributes
+  OrderedDict<std::string, Attribute> attributes_;
+  // Overloads, in the same format as `__overloads__` in Python
+  std::unordered_map<std::string, std::vector<std::string>> overloads_;
+  // Any attributes we failed to convert to TorchScript, along with a hint as to
+  // why
+  std::unordered_map<std::string, std::string> failedAttributes_;
+  // Any attributes that were marked as ignored. They cannot be used in
+  // TorchScript but can still be used in ignored function in Python.
+  std::unordered_set<std::string> ignoredAttributes_;
+  // Any function attributes. These are special right now because functions are
+  // not first-class in the type system.
+  std::unordered_map<std::string, FunctionAttribute> functionAttributes_;
+  // Function attributes that are calls to builtin functions. These get
+  // de-sugared directly into the corresponding aten:: call. The map is
+  // attribute name -> aten symbol name
+  std::unordered_map<std::string, c10::Symbol> builtinFunctions_;
+  // The concrete types of any submodules
+  std::vector<ModuleInfo> modules_;
+  // Hooks to be called before/after forward when the module
+  // is called directly. Used to ensure modules have different types
+  // when they have different python hooks
+  // Actual hooks are added to ClassType directly during compilation
+  std::vector<py::object> forwardHooks_;
+  std::vector<py::object> forwardPreHooks_;
+
+  // If something is a ModuleDict/ModuleList, it means:
+  //   1. The order of the submodules matters for comparing the type
+  //   2. The compiler is allowed to treat it like a dict/tuple
+  IterableModuleKind iterableModuleKind_ = IterableModuleKind::NONE;
+
+  // The original `nn.Module` class that we derived this ScriptModule from.
+  py::object pyClass_;
+
+  // NOTE: If you ever add any more state to this struct, you need to make sure
+  // operator== still makes sense!
+  friend ConcreteModuleType;
+};
+
+// Represents a finalized concrete type, used to service ModuleValue::attr calls
+// during method compilation.
+class VISIBILITY_HIDDEN ConcreteModuleType {
+ public:
+  explicit ConcreteModuleType(ConcreteModuleTypeBuilder data);
+
+  static std::shared_ptr<ConcreteModuleType> fromJitType(TypePtr type);
+
+  TypePtr getJitType() const;
+  c10::optional<py::object> getPyClass() const;
+  IterableModuleKind getIterableModuleKind() const;
+  c10::optional<std::vector<std::string>> findOverloads(
+      const std::string& name) const;
+  c10::optional<Function*> findFunctionAttribute(const std::string& name) const;
+  c10::optional<c10::Symbol> findBuiltinFunction(const std::string& name) const;
+  std::shared_ptr<ConcreteModuleType> findSubmoduleConcreteType(
+      const std::string& name) const;
+  c10::optional<std::string> findFailedAttribute(const std::string& name) const;
+  bool isIgnoredAttribute(const std::string& name) const;
+
+  // These getters are only here to return things as types that can be
+  // automatically converted by pybind.
+  std::unordered_map<std::string, py::object> getConstantsPy() const;
+  std::unordered_map<std::string, std::pair<TypePtr, bool>> getAttributesPy()
+      const;
+  std::vector<std::pair<std::string, std::shared_ptr<ConcreteModuleType>>>
+  getModulesPy() const;
+
+  bool equals(const ConcreteModuleType& other) const {
+    if (jitType_ == other.jitType_) {
+      // If the computed types are the same, these modules can (obviously) share
+      // a type.
+      return true;
+    }
+
+    return data_.equals(other.data_);
+  }
+  bool equals(const ConcreteModuleTypeBuilder& other) const {
+    return data_.equals(other);
+  }
+
+  void dump() const;
+
+ private:
+  ConcreteModuleType() = default;
+
+  // The JIT type derived from this ConcreteModuleType.
+  ConcreteModuleTypeBuilder data_;
+  TypePtr jitType_;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/convert_to_ssa.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+// Convert a graph with Loads & Stores into SSA form
+TORCH_API void ConvertToSSA(std::shared_ptr<Graph>& graph);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/edit_distance.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <cstddef>
+
+namespace torch {
+namespace jit {
+
+TORCH_API size_t ComputeEditDistance(
+    const char* word1,
+    const char* word2,
+    size_t maxEditDistance);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/error_report.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/frontend/tree.h>
+
+namespace torch {
+namespace jit {
+
+struct Call {
+  std::string fn_name;
+  SourceRange caller_range;
+};
+
+struct TORCH_API ErrorReport : public std::exception {
+  ErrorReport(const ErrorReport& e);
+
+  explicit ErrorReport(SourceRange r);
+  explicit ErrorReport(const TreeRef& tree) : ErrorReport(tree->range()) {}
+  explicit ErrorReport(const Token& tok) : ErrorReport(tok.range) {}
+
+  const char* what() const noexcept override;
+
+  struct TORCH_API CallStack {
+    // These functions are used to report why a function was being compiled
+    // (i.e. what was the call stack of user functions at compilation time that
+    // led to this error)
+    CallStack(const std::string& name, const SourceRange& range);
+    ~CallStack();
+
+    // Change the range that is relevant for the current function (i.e. after
+    // each successful expression compilation, change it to the next expression)
+    static void update_pending_range(const SourceRange& range);
+  };
+
+  static std::string current_call_stack();
+
+ private:
+  template <typename T>
+  friend const ErrorReport& operator<<(const ErrorReport& e, const T& t);
+
+  mutable std::stringstream ss;
+  OwnedSourceRange context;
+  mutable std::string the_message;
+  std::vector<Call> error_stack;
+};
+
+template <typename T>
+const ErrorReport& operator<<(const ErrorReport& e, const T& t) {
+  e.ss << t;
+  return e;
+}
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/exit_transforms.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API void TransformExits(std::shared_ptr<Graph>& graph);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/inline_loop_condition.h

@@ -0,0 +1,16 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API void InlineLoopCondition(std::shared_ptr<Graph>& graph);
+TORCH_API void InlineBlockBeforeNode(Node* before_node, Block* block);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/ir_emitter.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <functional>
+#include <memory>
+#include <string>
+
+#include <torch/csrc/jit/api/module.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/resolver.h>
+#include <torch/csrc/jit/frontend/sugared_value.h>
+#include <torch/csrc/jit/frontend/tree_views.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API void runCleanupPasses(std::shared_ptr<Graph>& to_clean);
+
+TORCH_API bool meaningfulName(const std::string& name);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/lexer.h

@@ -0,0 +1,576 @@
+#pragma once
+#include <c10/macros/Macros.h>
+#include <c10/util/C++17.h>
+#include <c10/util/Exception.h>
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/frontend/parser_constants.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/jit/frontend/strtod.h>
+#include <algorithm>
+#include <clocale>
+#include <cstdlib>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <vector>
+
+C10_CLANG_DIAGNOSTIC_PUSH()
+#if C10_CLANG_HAS_WARNING("-Wshorten-64-to-32")
+C10_CLANG_DIAGNOSTIC_IGNORE("-Wshorten-64-to-32")
+#endif
+
+namespace torch {
+namespace jit {
+
+// single character tokens are just the character itself '+'
+// multi-character tokens need an entry here
+// if the third entry is not the empty string, it is used
+// in the lexer to match this token.
+
+// These kinds are also used in Tree.h as the kind of the AST node.
+// Some kinds TK_APPLY, TK_LIST are only used in the AST and are not seen in the
+// lexer.
+
+#define TC_FORALL_TOKEN_KINDS(_)                 \
+  _(TK_EOF, "eof", "")                           \
+  _(TK_WHITESPACE, "whitespace", "")             \
+  _(TK_WHITESPACE_EOF, "whitespace_eof", "")     \
+  _(TK_NUMBER, "number", "")                     \
+  _(TK_NEWLINE, "newline", "")                   \
+  _(TK_INDENT, "indent", "")                     \
+  _(TK_DEDENT, "dedent", "")                     \
+  _(TK_DEF, "def", "def")                        \
+  _(TK_EQUIVALENT, "equivalent", "<=>")          \
+  _(TK_IDENT, "ident", "")                       \
+  _(TK_STRING, "string", "")                     \
+  _(TK_STRINGLITERAL, "string_literal", "")      \
+  _(TK_CONST, "const", "")                       \
+  _(TK_LIST, "list", "")                         \
+  _(TK_DICT, "dict", "")                         \
+  _(TK_OPTION, "option", "")                     \
+  _(TK_APPLY, "apply", "")                       \
+  _(TK_COMPREHENSION, "comprehension", "")       \
+  _(TK_RANGE_CONSTRAINT, "range_constraint", "") \
+  _(TK_PARAM, "param", "")                       \
+  _(TK_INFERRED, "inferred", "")                 \
+  _(TK_ACCESS, "access", "")                     \
+  _(TK_ASSIGN, "assign", "")                     \
+  _(TK_AUG_ASSIGN, "aug_assign", "")             \
+  _(TK_ATTRIBUTE, "attribute", "")               \
+  _(TK_IF, "if", "if")                           \
+  _(TK_ELSE, "else", "else")                     \
+  _(TK_ELIF, "elif", "elif")                     \
+  _(TK_WHILE, "while", "while")                  \
+  _(TK_EXPR_STMT, "expression statement", "")    \
+  _(TK_RETURN, "return", "return")               \
+  _(TK_IS, "is", "is")                           \
+  _(TK_ISNOT, "is not", "is not")                \
+  _(TK_NE, "ne", "!=")                           \
+  _(TK_EQ, "eq", "==")                           \
+  _(TK_LE, "le", "<=")                           \
+  _(TK_GE, "ge", ">=")                           \
+  _(TK_FLOOR_DIV, "floordiv", "//")              \
+  _(TK_IF_EXPR, "if", "")                        \
+  _(TK_TRUE, "True", "True")                     \
+  _(TK_FALSE, "False", "False")                  \
+  _(TK_NONE, "None", "None")                     \
+  _(TK_AND, "and", "and")                        \
+  _(TK_OR, "or", "or")                           \
+  _(TK_NOT, "not", "not")                        \
+  _(TK_LSHIFT, "<<", "<<")                       \
+  _(TK_RSHIFT, ">>", ">>")                       \
+  _(TK_CAST, "cast", "")                         \
+  _(TK_PLUS_EQ, "+=", "+=")                      \
+  _(TK_MINUS_EQ, "-=", "-=")                     \
+  _(TK_TIMES_EQ, "*=", "*=")                     \
+  _(TK_DIV_EQ, "/=", "/=")                       \
+  _(TK_MOD_EQ, "%=", "%=")                       \
+  _(TK_BIT_OR_EQ, "|=", "|=")                    \
+  _(TK_BIT_AND_EQ, "&=", "&=")                   \
+  _(TK_BIT_XOR_EQ, "^=", "^=")                   \
+  _(TK_LSHIFT_EQ, "<<=", "<<=")                  \
+  _(TK_RSHIFT_EQ, ">>=", ">>=")                  \
+  _(TK_POW_EQ, "**=", "**=")                     \
+  _(TK_GLOBAL, "global", "global")               \
+  _(TK_BUILT_IN, "built-in", "")                 \
+  _(TK_SUBSCRIPT, "subscript", "")               \
+  _(TK_VAR, "variable", "")                      \
+  _(TK_NOTHING, "nothing", "")                   \
+  _(TK_DICT_LITERAL, "dict-literal", "")         \
+  _(TK_LIST_LITERAL, "list-literal", "")         \
+  _(TK_TUPLE_LITERAL, "tuple-literal", "")       \
+  _(TK_FOR, "for", "for")                        \
+  _(TK_IN, "in", "in")                           \
+  _(TK_NOTIN, "not in", "not in")                \
+  _(TK_STARRED, "starred", "")                   \
+  _(TK_UNARY_MINUS, "unary minus", "")           \
+  _(TK_POW, "pow operator", "**")                \
+  _(TK_ARROW, "arrow", "->")                     \
+  _(TK_DECL, "decl", "")                         \
+  _(TK_SLICE_EXPR, "slice expr", "")             \
+  _(TK_TYPE_COMMENT, "type comment", "# type:")  \
+  _(TK_RAISE, "raise", "raise")                  \
+  _(TK_ASSERT, "assert", "assert")               \
+  _(TK_DOTS, "dots", "...")                      \
+  _(TK_LIST_COMP, "list comprehension", "")      \
+  _(TK_DICT_COMP, "dict comprehension", "")      \
+  _(TK_BREAK, "break", "break")                  \
+  _(TK_CONTINUE, "continue", "continue")         \
+  _(TK_DELETE, "del", "del")                     \
+  _(TK_PASS, "pass", "pass")                     \
+  _(TK_CLASS_DEF, "class", "class")              \
+  _(TK_IMPORT, "import", "import")               \
+  _(TK_WITH, "with", "with")                     \
+  _(TK_WITH_ITEM, "withitem", "")                \
+  _(TK_AS, "as", "as")                           \
+  _(TK_PROP, "property", "")                     \
+  _(TK_ELLIPSIS, "Ellipsis", "Ellipsis")         \
+  _(TK_NONE_TYPE, "NoneType", "NoneType")
+
+enum TokenKind {
+  // we use characters to represent themselves so skip all valid characters
+  // before
+  // assigning enum values to multi-char tokens.
+  TK_DUMMY_START = 256,
+#define DEFINE_TOKEN(tok, _, _2) tok,
+  TC_FORALL_TOKEN_KINDS(DEFINE_TOKEN)
+#undef DEFINE_TOKEN
+};
+
+TORCH_API std::string kindToString(int kind);
+TORCH_API int stringToKind(const std::string& str);
+
+// nested hash tables that indicate char-by-char what is a valid token.
+struct TokenTrie;
+using TokenTrieRef = std::unique_ptr<TokenTrie>;
+struct TokenTrie {
+  TokenTrie() : kind(0) {}
+  void insert(const char* str, int tok) {
+    if (*str == '\0') {
+      AT_ASSERT(kind == 0);
+      kind = tok;
+      return;
+    }
+
+    for (size_t i = 0, e = child_chars.size(); i < e; ++i) {
+      if (child_chars[i] == *str) {
+        child_tries[i]->insert(str + 1, tok);
+        return;
+      }
+    }
+
+    child_chars.emplace_back(*str);
+    child_tries.emplace_back(std::make_unique<TokenTrie>());
+    child_tries.back()->insert(str + 1, tok);
+  }
+  int kind; // 0 == invalid token
+
+  std::vector<char> child_chars;
+  std::vector<TokenTrieRef> child_tries;
+};
+
+// stuff that is shared against all TC lexers/parsers and is initialized only
+// once.
+struct TORCH_API SharedParserData {
+  SharedParserData() : head(new TokenTrie()) {
+    std::stringstream ss;
+    for (const char* c = valid_single_char_tokens; *c; c++) {
+      std::string str(1, *c);
+      head->insert(str.c_str(), *c);
+    }
+
+#define ADD_CASE(tok, _, tokstring)   \
+  if (*(tokstring) != '\0') {         \
+    head->insert((tokstring), (tok)); \
+  }
+    TC_FORALL_TOKEN_KINDS(ADD_CASE)
+#undef ADD_CASE
+  }
+
+  bool match(
+      StringCordView::Iterator pos,
+      bool continuation, // are we inside a scope where newlines don't count
+                         // (e.g. inside parens)
+      bool whitespace_token, // should we treat whitespace as a token
+      int* kind,
+      StringCordView::Iterator* start,
+      StringCordView::Iterator* end) {
+    *start = pos;
+    // skip whitespace
+    while (pos.has_next() && isblank(*pos)) {
+      ++pos;
+    }
+
+    // special handling
+    if (pos.has_next()) {
+      if (*pos == '#' && !isTypeComment(pos)) {
+        // skip comments
+        while (pos.has_next() && *pos != '\n')
+          ++pos;
+        // tail call, handle whitespace and more comments
+        return match(pos, continuation, whitespace_token, kind, start, end);
+      }
+      if (*pos == '\\') {
+        auto newiter = pos;
+        ++newiter;
+        if (newiter.has_next() && *newiter == '\n' && !whitespace_token) {
+          ++newiter;
+          return match(newiter, continuation, false, kind, start, end);
+        }
+      }
+      if (*pos == '\n') {
+        return match(++pos, continuation, !continuation, kind, start, end);
+      }
+    }
+    // we handle white space before EOF because in the case we have something
+    // like the following where we need to generate the dedent token if foo:
+    //   ...
+    // else:
+    //   pass
+    if (whitespace_token) {
+      *kind = !pos.has_next() ? TK_WHITESPACE_EOF : TK_WHITESPACE;
+      *end = pos;
+      return true;
+    }
+    if (!pos.has_next()) {
+      *kind = TK_EOF;
+      *start = pos;
+      *end = *start;
+      return true;
+    }
+    // invariant: the next token is not whitespace or newline
+    *start = pos;
+    // check for a valid number
+    size_t len;
+    if (isNumber(pos.rest_line(), 0, &len)) {
+      *end = *start;
+      *end += len;
+      *kind = TK_NUMBER;
+      return true;
+    }
+    // check for string
+    if (isString(pos.rest_line(), 0, &len)) {
+      *kind = TK_STRINGLITERAL;
+      *end = *start;
+      *end += len;
+      return true;
+    }
+
+    // check for either an ident or a token
+    // ident tracks whether what we have scanned so far could be an identifier
+    // matched indicates if we have found any match.
+    bool matched = false;
+    bool ident = true;
+    TokenTrie* cur = head.get();
+    // for (size_t i = 0; pos + i < str.size() && (ident || cur != nullptr);
+    // i++)
+    for (size_t i = 0; pos.has_next() && (ident || cur != nullptr);
+         ++pos, ++i) {
+      ident = ident && validIdent(i, *pos);
+      if (ident) {
+        matched = true;
+        *end = pos.next_iter();
+        *kind = TK_IDENT;
+      }
+      // check for token second, so that e.g. 'max' matches the token TK_MAX
+      // rather the
+      // identifier 'max'
+      if (cur) {
+        const auto begin_it = cur->child_chars.begin();
+        const auto end_it = cur->child_chars.end();
+        const auto ch_it = std::find(begin_it, end_it, *pos);
+
+        cur = (ch_it == end_it) ? nullptr
+                                : cur->child_tries[ch_it - begin_it].get();
+
+        if (cur && cur->kind != 0) {
+          matched = true;
+          *end = pos.next_iter();
+          *kind = cur->kind;
+        }
+      }
+    }
+    return matched;
+  }
+
+  bool isUnary(int kind, int* prec);
+  bool isBinary(int kind, int* prec);
+  bool isRightAssociative(int kind) {
+    switch (kind) {
+      case '?':
+      case TK_POW:
+      case TK_IF:
+        return true;
+      default:
+        return false;
+    }
+  }
+
+ private:
+  bool validIdent(size_t i, char n) {
+    return isalpha(n) || n == '_' || (i > 0 && isdigit(n));
+  }
+
+  // 1. skip whitespace
+  // 2. handle comment or newline
+  //
+  bool isNumber(c10::string_view str, size_t start, size_t* len) {
+    char first = str[start];
+    // strtod allows numbers to start with + or - or nan or inf
+    // http://en.cppreference.com/w/cpp/string/byte/strtof
+    // but we want only the number part, otherwise 1+3 will turn into two
+    // adjacent numbers in the lexer
+    if (first == '-' || first == '+' || isalpha(first))
+      return false;
+    const char* startptr = str.data() + start;
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    char* endptr;
+    torch::jit::strtod_c(startptr, &endptr);
+    *len = endptr - startptr;
+    // check if the number is complex valued
+    // access is safe because string is assumed to be null terminated
+    if (endptr != nullptr && *endptr == 'j') {
+      *len += 1;
+    }
+    return *len > 0;
+  }
+
+  bool isCharCount(char c, c10::string_view str, size_t start, int len) {
+    // count checks from [start, start + len)
+    return start + len <= str.size() &&
+        std::count(str.begin() + start, str.begin() + start + len, c) == len;
+  }
+
+  // python concatenates all adjacent strings "a" "b" == "ab"
+  // strings can be enclosed with 1 or 3 single or double quotes
+  // if enclosed with 3 quotes newlines are valid
+  // as elsewhere, backslash and new line should be ignored
+  bool isString(c10::string_view str, size_t start, size_t* len) {
+    char quote = str[start];
+    if (quote != '\"' && quote != '\'')
+      return false;
+    int quote_len = isCharCount(quote, str, start, 3) ? 3 : 1;
+
+    // end is now set past the opening quotation marks
+    size_t end = start + quote_len;
+    while (end < str.size() && !isCharCount(quote, str, end, quote_len)) {
+      if (str[end] == '\n' && quote_len != 3) {
+        return false;
+      }
+      // handle escaped characters. advances past escaped quotation marks,
+      // escaped newlines and escaped backslashes
+      // multi-char escapes like \x1A are handled fine here because the
+      // remainder of the escape are valid string characters anyway
+      if (str[end] == '\\') {
+        end++;
+      }
+      end++;
+    }
+    // set length equal to the complete string including quotations
+    *len = end - start + quote_len;
+    // if end finished without going past the last character of the string than
+    // there is a match
+    return end < str.size();
+  }
+
+  bool isblank(int n) {
+    return isspace(n) && n != '\n';
+  }
+
+  bool isTypeComment(StringCordView::Iterator str_iter) {
+    c10::string_view rest_line = str_iter.rest_line();
+    const std::string type_string = "# type:";
+    if (rest_line.size() < type_string.length()) {
+      return false;
+    }
+    auto match_string = rest_line.substr(0, type_string.size());
+    return match_string == type_string;
+  }
+
+  // Make an exception ignoring comments for type annotation comments
+  bool isTypeComment(StringCordView str, size_t pos) {
+    const std::string type_string = "# type:";
+    if (str.size() < pos + type_string.length()) {
+      return false;
+    }
+    auto match_string = str.substr(pos, type_string.size());
+    return match_string == type_string;
+  }
+
+  TokenTrieRef head;
+};
+
+TORCH_API SharedParserData& sharedParserData();
+
+struct Token {
+  int kind;
+  SourceRange range;
+  Token(int kind, SourceRange range) : kind(kind), range(std::move(range)) {}
+  std::string text() {
+    return std::string(range.token_text());
+  }
+  std::string kindString() const {
+    return kindToString(kind);
+  }
+};
+
+struct Lexer {
+  explicit Lexer(std::shared_ptr<Source> source)
+      : source(std::move(source)),
+        pos(0),
+        nesting(0),
+        indent_stack(),
+        next_tokens(),
+        shared(sharedParserData()) {
+    auto first_indent = lexRaw(true);
+    indent_stack.push_back(first_indent.range.size());
+    lex();
+  }
+  // Return the current token, and then move to the next one
+  Token next() {
+    if (next_tokens.empty())
+      reportError("Lexer invariant violated: empty token queue");
+    Token r = std::move(next_tokens.front());
+    next_tokens.erase(next_tokens.begin());
+    if (next_tokens.empty()) {
+      lex();
+    }
+    return r;
+  }
+  // Skip the current token if it matches the given kind
+  bool nextIf(int kind) {
+    if (cur().kind != kind)
+      return false;
+    next();
+    return true;
+  }
+
+  [[noreturn]] void reportError(const std::string& what) {
+    reportError(what, cur());
+  }
+  [[noreturn]] void reportError(const std::string& what, const Token& t) {
+    std::stringstream ss;
+    ss << what << ":\n";
+    t.range.highlight(ss);
+    throw std::runtime_error(ss.str());
+  }
+  [[noreturn]] void expected(const std::string& what, const Token& t) {
+    std::stringstream ss;
+    ss << "expected " << what << " but found '" << t.kindString()
+       << "' here:\n";
+    t.range.highlight(ss);
+    throw std::runtime_error(ss.str());
+  }
+  [[noreturn]] void expected(const std::string& what) {
+    expected(what, cur());
+  }
+  // Check that the current token has a given kind, return the current token,
+  // and advance to the next one.
+  Token expect(int kind) {
+    if (cur().kind != kind) {
+      expected(kindToString(kind));
+    }
+    return next();
+  }
+  Token& lookahead() {
+    if (next_tokens.size() < 2) {
+      lex();
+    }
+    return next_tokens[1];
+  }
+  Token& cur() {
+    return next_tokens.front();
+  }
+
+ private:
+  void lex() {
+    auto r = lexRaw();
+    switch (r.kind) {
+      case '(':
+      case '[':
+      case '{':
+        nesting++;
+        break;
+      case ')':
+      case ']':
+      case '}':
+        nesting--;
+        break;
+      case TK_WHITESPACE:
+      case TK_WHITESPACE_EOF: {
+        const auto depth = static_cast<int64_t>(
+            r.kind == TK_WHITESPACE_EOF ? indent_stack.front()
+                                        : r.range.size());
+        // note: TK_WHITESPACE_EOF is whitespace right before the EOF token
+        // just like we allow the code to be indented to a particular initial
+        // indent level, we allow the final indent to be anything and set
+        // it back to the initial indent level. This allows the code to be
+        // put into string literals inside code without worrying about final
+        // whitespace
+        if (depth > indent_stack.back()) {
+          indent_stack.push_back(depth);
+          r.kind = TK_INDENT;
+        } else if (depth == indent_stack.back()) {
+          r.kind = TK_NEWLINE;
+        } else {
+          next_tokens.emplace_back(TK_NEWLINE, r.range);
+          while (indent_stack.back() != depth) {
+            indent_stack.pop_back();
+            next_tokens.emplace_back(TK_DEDENT, r.range);
+            if (indent_stack.empty()) {
+              reportError("invalid indent level " + std::to_string(depth), r);
+            }
+          }
+          return; // We've already queued the tokens
+        }
+      } break;
+      default:
+        break;
+    }
+    next_tokens.push_back(std::move(r));
+  }
+  Token lexRaw(bool whitespace_token = false) {
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    int kind;
+    AT_ASSERT(source);
+    if (current == nullptr) {
+      AT_ASSERT(pos == 0);
+      current = std::make_unique<StringCordView::Iterator>(
+          source->text_str().begin());
+    }
+
+    StringCordView::Iterator start_iter = *current;
+    StringCordView::Iterator end_iter = *current;
+    if (!shared.match(
+            *current,
+            nesting > 0,
+            whitespace_token,
+            &kind,
+            &start_iter,
+            &end_iter)) {
+      expected(
+          "a valid token",
+          Token(
+              **current,
+              SourceRange(source, start_iter, start_iter.pos() + 1)));
+    }
+
+    auto t = Token(kind, SourceRange(source, start_iter, end_iter.pos()));
+    pos = end_iter.pos();
+    *current = end_iter;
+    return t;
+  }
+
+  std::shared_ptr<Source> source;
+  std::unique_ptr<StringCordView::Iterator> current;
+  size_t pos;
+  size_t nesting; // depth of ( [ { nesting...
+  std::vector<int> indent_stack; // stack of indentation level of blocks
+  // Invariant: this should always contain at least a single element
+  std::vector<Token> next_tokens;
+  SharedParserData& shared;
+};
+} // namespace jit
+} // namespace torch
+
+C10_CLANG_DIAGNOSTIC_POP()

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/mini_environment.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <ATen/core/jit_type.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+// Simple data structure for containing a type T in nested control blocks
+// Should only be used after initial compilation where type checking and
+// loads and stores are emitted
+
+template <typename T>
+struct MiniEnvironment {
+  MiniEnvironment(Block* b, std::shared_ptr<MiniEnvironment> next = nullptr)
+      : next(std::move(next)) {}
+
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::shared_ptr<MiniEnvironment<T>> next;
+
+  T findInThisFrame(const std::string& name) {
+    auto it = table.find(name);
+    if (it != table.end()) {
+      return it->second;
+    }
+    return nullptr;
+  }
+
+  T findInAnyFrame(const std::string& name) {
+    for (auto runner = this; runner; runner = runner->next.get()) {
+      if (auto r = runner->findInThisFrame(name)) {
+        return r;
+      }
+    }
+    return nullptr;
+  }
+
+  void setVar(const std::string& name, T value) {
+    table[name] = value;
+  }
+
+  std::vector<std::string> definedVariables() {
+    std::vector<std::string> result;
+    result.reserve(table.size());
+    for (auto& kv : table) {
+      result.push_back(kv.first);
+    }
+    std::sort(result.begin(), result.end());
+    return result;
+  }
+
+ private:
+  std::unordered_map<std::string, T> table;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/parse_string_literal.h

@@ -0,0 +1,87 @@
+#pragma once
+#include <c10/util/Optional.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/lexer.h>
+
+namespace torch {
+namespace jit {
+
+inline bool isCharCount(char c, const std::string& str, size_t start, int len) {
+  // count checks from [start, start + len)
+  return start + len <= str.size() &&
+      std::count(str.begin() + start, str.begin() + start + len, c) == len;
+}
+
+inline c10::optional<char> parseOctal(const std::string& str, size_t pos) {
+  //\xxx where x are 0-7
+  if (pos + 3 >= str.size())
+    return c10::nullopt;
+  size_t c = 0;
+  for (size_t i = 1, b = 64; i < 4; ++i, b /= 8) {
+    // NOLINTNEXTLINE(bugprone-signed-char-misuse)
+    int d = str[pos + i];
+    if (d < '0' || d > '7')
+      return c10::nullopt;
+    c += b * (d - '0');
+  }
+  if (c >= 256)
+    return c10::nullopt;
+  return c;
+}
+
+inline std::string parseStringLiteral(
+    const SourceRange& range,
+    const std::string& str) {
+  int quote_len = isCharCount(str[0], str, 0, 3) ? 3 : 1;
+  auto ret_str = str.substr(quote_len, str.size() - quote_len * 2);
+  size_t pos = ret_str.find('\\');
+  while (pos != std::string::npos) {
+    // invariant: pos has to escape a character because it is a valid string
+    char c = ret_str[pos + 1];
+    size_t to_erase = 2;
+    switch (ret_str[pos + 1]) {
+      case '\\':
+      case '\'':
+      case '\"':
+      case '\n':
+        break;
+      case 'a':
+        c = '\a';
+        break;
+      case 'b':
+        c = '\b';
+        break;
+      case 'f':
+        c = '\f';
+        break;
+      case 'n':
+        c = '\n';
+        break;
+      case 'v':
+        c = '\v';
+        break;
+      case 't':
+        c = '\t';
+        break;
+      case 'x':
+        throw ErrorReport(range) << "unsupported hex specifier";
+      case 'u':
+      case 'U':
+        throw ErrorReport(range) << "unsupported unicode specifier";
+      default:
+        // octal value in format \nnn, n is [0-7]
+        if (auto v = parseOctal(ret_str, pos)) {
+          to_erase = 4;
+          c = *v;
+        } else {
+          throw ErrorReport(range) << " ill formed octal specifier";
+        }
+    }
+    ret_str.replace(pos, to_erase, /* num copies */ 1, c);
+    pos = ret_str.find('\\', pos + 1);
+  }
+  return ret_str;
+}
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/parser_constants.h

@@ -0,0 +1,7 @@
+#pragma once
+
+namespace torch {
+namespace jit {
+static const char* valid_single_char_tokens = "+-*/%@()[]:,={}><.?!&^|~";
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/resolver.h

@@ -0,0 +1,68 @@
+#pragma once
+
+#include <ATen/core/jit_type.h>
+#include <ATen/core/qualified_name.h>
+#include <torch/csrc/jit/frontend/sugared_value.h>
+
+namespace torch {
+namespace jit {
+
+struct Resolver;
+using ResolverPtr = std::shared_ptr<Resolver>;
+
+/**
+ * class Resolver
+ *
+ * Represents an "outer environment" in which we an look up names and return
+ * a corresponding SugaredValue. This is used during compilation to resolve
+ * references to names which are not defined internal to the graph.
+ *
+ * Example: PythonResolver looks at the enclosing Python scope for `name`.
+ *
+ * NOTE: When adding methods, keep this an abstract class (i.e. all new methods
+ * should be purely virtual). Resist the urge to provide a default
+ * implementation; you should explicitly think about how each resolver would
+ * handle the method.
+ */
+struct Resolver {
+  virtual ~Resolver() = default;
+
+  // Resolve a given name to a SugaredValue. This takes the method `m` that the
+  // caller is currently constructing, since we may need to insert nodes into
+  // the graph to create a value.
+  virtual std::shared_ptr<SugaredValue> resolveValue(
+      const std::string& name,
+      GraphFunction& m,
+      const SourceRange& loc) {
+    return nullptr;
+  }
+
+  // Resolve `name` to a TypePtr.
+  virtual TypePtr resolveType(const std::string& name, const SourceRange& loc) {
+    return nullptr;
+  }
+};
+
+// A resolver that only understands "torch.foo()" lookups.
+struct NativeResolver : public Resolver {
+  std::shared_ptr<SugaredValue> resolveValue(
+      const std::string& name,
+      GraphFunction& m,
+      const SourceRange& loc) override {
+    if (name == "torch") {
+      return std::make_shared<BuiltinModule>("aten");
+    }
+    return nullptr;
+  }
+
+  TypePtr resolveType(const std::string& name, const SourceRange& loc)
+      override {
+    return nullptr;
+  }
+};
+
+inline std::shared_ptr<NativeResolver> nativeResolver() {
+  return std::make_shared<NativeResolver>();
+}
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/schema_matching.h

@@ -0,0 +1,70 @@
+#pragma once
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/ir/ir.h>
+#include <torch/csrc/jit/ir/named_value.h>
+
+#include <ATen/core/function_schema.h>
+
+namespace torch {
+namespace jit {
+
+// Try to match a list of inputs and keyword 'attributes' to this
+// schema. Return the flat list of positional inputs to the call or
+// `c10::nullopt` on failure (`failure_messages` contains a good error
+// report in this case)
+
+struct MatchedSchema {
+  std::vector<Value*> inputs;
+  std::vector<TypePtr> return_types;
+  c10::OptNameList return_field_names;
+  std::string schema_name;
+};
+
+TORCH_API bool isBlockListedSchema(const FunctionSchema& schema);
+
+TORCH_API MatchedSchema matchSchema(
+    const ::c10::FunctionSchema& schema,
+    const SourceRange& loc,
+    Graph& graph,
+    at::ArrayRef<NamedValue> args,
+    at::ArrayRef<NamedValue> kwargs,
+    const c10::optional<NamedValue>& self = c10::nullopt);
+
+TORCH_API std::pair<size_t, MatchedSchema> matchSchemas(
+    const std::vector<const ::c10::FunctionSchema*>& schemas,
+    const SourceRange& loc,
+    Graph& graph,
+    at::ArrayRef<NamedValue> args,
+    at::ArrayRef<NamedValue> kwargs,
+    const c10::optional<NamedValue>& self = c10::nullopt,
+    bool render_errors = false);
+
+TORCH_API bool convertibleToList(
+    const TypePtr& type,
+    const TypePtr& list_type_);
+
+TORCH_API std::string getFullSchemaName(const ::c10::FunctionSchema& schema);
+
+TORCH_API Value* emitBuiltinCall(
+    const SourceRange& loc,
+    Graph& graph,
+    Symbol name,
+    at::ArrayRef<NamedValue> args,
+    at::ArrayRef<NamedValue> kwargs,
+    const c10::optional<NamedValue>& self = c10::nullopt);
+
+TORCH_API c10::optional<size_t> findInputWithName(
+    const std::string& name,
+    at::ArrayRef<NamedValue> kwargs,
+    bool is_aten = false);
+
+// applies implicit conversion from value trying to turn it into type
+// concrete_type it succeeds if the return_value->isSubtypeOf(concrete_type)
+TORCH_API Value* tryConvertToType(
+    const SourceRange& loc,
+    Graph& graph,
+    const TypePtr& concrete_type,
+    Value* value,
+    bool allow_conversions);
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/script_type_parser.h

@@ -0,0 +1,55 @@
+#pragma once
+#include <ATen/core/jit_type.h>
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/frontend/resolver.h>
+#include <torch/csrc/jit/frontend/tree_views.h>
+
+namespace torch {
+namespace jit {
+
+/**
+ * class ScriptTypeParser
+ *
+ * Parses expressions in our typed AST format (TreeView) into types and
+ * typenames.
+ */
+class TORCH_API ScriptTypeParser {
+ public:
+  explicit ScriptTypeParser() = default;
+  explicit ScriptTypeParser(ResolverPtr resolver)
+      : resolver_(std::move(resolver)) {}
+
+  c10::TypePtr parseTypeFromExpr(const Expr& expr) const;
+
+  c10::optional<std::pair<c10::TypePtr, int32_t>> parseBroadcastList(
+      const Expr& expr) const;
+
+  c10::TypePtr parseType(const std::string& str);
+
+  FunctionSchema parseSchemaFromDef(const Def& def, bool skip_self);
+
+  c10::IValue parseClassConstant(const Assign& assign);
+
+ private:
+  c10::TypePtr parseTypeFromExprImpl(const Expr& expr) const;
+
+  c10::optional<std::string> parseBaseTypeName(const Expr& expr) const;
+  at::TypePtr subscriptToType(
+      const std::string& typeName,
+      const Subscript& subscript) const;
+  std::vector<IValue> evaluateDefaults(
+      const SourceRange& r,
+      const std::vector<Expr>& default_types,
+      const std::vector<Expr>& default_exprs);
+  std::vector<Argument> parseArgsFromDecl(const Decl& decl, bool skip_self);
+
+  std::vector<Argument> parseReturnFromDecl(const Decl& decl);
+
+  ResolverPtr resolver_ = nullptr;
+
+  // Need to use `evaluateDefaults` in serialization
+  friend struct ConstantTableValue;
+  friend struct SourceImporterImpl;
+};
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/source_range.h

@@ -0,0 +1,459 @@
+#pragma once
+#include <c10/util/Exception.h>
+#include <c10/util/Optional.h>
+
+#include <algorithm>
+#include <iterator>
+#include <memory>
+#include <numeric>
+#include <ostream>
+#include <regex>
+#include <sstream>
+#include <unordered_map>
+
+namespace torch {
+namespace jit {
+
+class SourceRangeUnpickler;
+struct SourceRange;
+
+// A stringlike class backed by a vector of string_view
+// the string represented are logically the concatenation of  the string_views
+// This has advantage of not needing continues memory.
+struct TORCH_API StringCordView {
+  StringCordView();
+  StringCordView(const StringCordView&) = default;
+  StringCordView(StringCordView&&) noexcept = default;
+  StringCordView(
+      std::vector<c10::string_view> inputs,
+      std::vector<std::shared_ptr<std::string>> ownerships);
+
+  StringCordView& operator=(const StringCordView&) = default;
+  StringCordView& operator=(StringCordView&&) noexcept = default;
+
+  size_t size() const {
+    return accumulated_sizes_.back();
+  }
+
+  size_t find(const std::string& tok, size_t start) const;
+  size_t find_regex(const std::string& tok, size_t start) const;
+  StringCordView substr(size_t start, size_t size) const;
+
+  char at(size_t index) const {
+    return *iter_for_pos(index);
+  }
+  char operator[](size_t index) const {
+    return at(index);
+  }
+
+  std::string str() const {
+    std::stringstream ss;
+    for (auto s : pieces_) {
+      ss << std::string(s);
+    }
+    return ss.str();
+  }
+
+  bool operator==(const std::string& rhs) const;
+
+  bool operator==(const StringCordView& rhs) const;
+
+  c10::string_view piece(size_t index) const {
+    return pieces_[index];
+  }
+
+  struct Iterator {
+    Iterator(
+        const StringCordView* str,
+        size_t start_line,
+        size_t start_pos,
+        size_t size)
+        : line_(start_line), pos_(start_pos), str_(str), size_(size) {}
+    explicit Iterator(const StringCordView* str)
+        : Iterator(str, 0, 0, str->size()) {}
+
+    Iterator() : Iterator(nullptr, 0, 0, 0) {}
+
+    Iterator(const Iterator&) = default;
+    Iterator(Iterator&&) = default;
+    Iterator& operator=(const Iterator&) = default;
+    Iterator& operator=(Iterator&&) = default;
+
+    Iterator operator++() {
+      if (size_ == 0) {
+        return *this;
+      }
+      if ((pos_ + 1) < str_->pieces_[line_].size()) {
+        pos_++;
+      } else {
+        line_++;
+        pos_ = 0;
+      }
+      return *this;
+    }
+
+    Iterator operator++(int) {
+      Iterator prev(*this);
+      ++(*this);
+      return prev;
+    }
+
+    Iterator next_iter() const {
+      Iterator next(*this);
+      ++next;
+      return next;
+    }
+
+    Iterator& operator+=(size_t num) {
+      if (!has_next()) {
+        return *this;
+      }
+      size_t target_pos = pos_ + num;
+      if (target_pos >= str_->accumulated_sizes_[line_] &&
+          (line_ + 1) < str_->accumulated_sizes_.size() &&
+          target_pos < str_->accumulated_sizes_[line_ + 1]) {
+        pos_ = target_pos;
+        return *this;
+      }
+
+      size_t target_abs_pos = pos() + num;
+      *this = str_->iter_for_pos(target_abs_pos);
+      return *this;
+    }
+
+    bool operator==(const Iterator& rhs) const {
+      if (!has_next() && !rhs.has_next()) {
+        return true;
+      }
+      return (str_ == rhs.str_) && (line_ == rhs.line_) && (pos_ == rhs.pos_);
+    }
+    bool operator!=(const Iterator& rhs) {
+      return !((*this) == rhs);
+    }
+    bool has_next() const {
+      return size_ > 0 && (line_ < str_->pieces_.size());
+    }
+
+    char operator*() const {
+      TORCH_INTERNAL_ASSERT(line_ < str_->pieces_.size());
+      TORCH_INTERNAL_ASSERT(pos_ < str_->pieces_[line_].size());
+      return str_->pieces_[line_].at(pos_);
+    }
+
+    // returns rest of the line of the current iterator
+    c10::string_view rest_line() const {
+      if (line_ >= str_->pieces_.size()) {
+        return "";
+      }
+
+      c10::string_view cur_line = str_->pieces_[line_];
+      return cur_line.substr(pos_, std::string::npos);
+    }
+
+    size_t pos() const {
+      if (size_ == 0) {
+        return 0;
+      }
+      return str_->accumulated_sizes_[line_] + pos_;
+    }
+
+   private:
+    size_t line_;
+    size_t pos_;
+    const StringCordView* str_;
+    size_t size_;
+    friend struct StringCordView;
+  };
+
+  Iterator begin() const {
+    return Iterator(this, 0, 0, size());
+  }
+  Iterator end() const {
+    return Iterator(this, pieces_.size(), 0, 0);
+  }
+  Iterator iter_for_pos(size_t pos) const;
+
+ private:
+  std::vector<c10::string_view> pieces_;
+  std::vector<size_t> accumulated_sizes_;
+  std::vector<std::shared_ptr<std::string>> owned_strings_;
+};
+
+// Source represents a code segment. It keeps track of:
+//  - text_view : the view into text of the code segment
+//  - filename (optional) : if present, represents the name of the file from
+//                          which the code segment originated.
+//  - starting_line_no : represents the line in the original file where the
+//                       code segment started.
+struct TORCH_API Source {
+  // Whether or not Source should copy the string passed in the constructor.
+  enum CopiesString { COPIES_STRING, DONT_COPY };
+
+  explicit Source(
+      c10::string_view text_view,
+      c10::optional<std::string> filename = c10::nullopt,
+      size_t starting_line_no = 0,
+      std::shared_ptr<SourceRangeUnpickler> gen_ranges = nullptr,
+      CopiesString copies_str = COPIES_STRING)
+      : filename_(std::move(filename)),
+        starting_line_no_(starting_line_no),
+        gen_ranges_(std::move(gen_ranges)) {
+    if (copies_str == COPIES_STRING) {
+      std::shared_ptr<std::string> allocated_str =
+          std::make_shared<std::string>(text_view.data(), text_view.size());
+      text_view_ = StringCordView({*allocated_str}, {allocated_str});
+    } else {
+      text_view_ = StringCordView({text_view}, {});
+    }
+
+    calc_line_start_offsets();
+  }
+
+  explicit Source(
+      StringCordView str,
+      c10::optional<std::string> filename = c10::nullopt,
+      size_t starting_line_no = 0,
+      std::shared_ptr<SourceRangeUnpickler> gen_ranges = nullptr)
+      : text_view_(std::move(str)),
+        filename_(std::move(filename)),
+        starting_line_no_(starting_line_no),
+        gen_ranges_(std::move(gen_ranges)) {
+    calc_line_start_offsets();
+  }
+  // Given a line number (within source_), return the byte offset of the
+  // beginning of that line.
+  size_t offset_for_line(size_t line) const {
+    return line_starting_offsets_.at(line);
+  }
+
+  // Returns number of lines present.
+  size_t num_lines() const {
+    return line_starting_offsets_.size();
+  }
+
+  // Calculate the line (within the code segment) on which `offset` resides.
+  size_t lineno_for_offset(size_t offset) const {
+    auto iter = std::upper_bound(
+        line_starting_offsets_.begin(), line_starting_offsets_.end(), offset);
+    return iter - line_starting_offsets_.begin() - 1;
+  }
+
+  // Calculate the line (within the original source file, if present) on which
+  // `lineno` resides.
+  size_t lineno_to_source_lineno(size_t lineno) const {
+    if (filename_) {
+      return lineno + starting_line_no_;
+    } else {
+      return lineno;
+    }
+  }
+
+  StringCordView get_line(size_t lineno) const {
+    auto start = offset_for_line(lineno);
+    auto size = (lineno + 1) < num_lines() ? offset_for_line(lineno + 1) - start
+                                           : text_view_.size() - start;
+    return text_view_.substr(start, size);
+  }
+
+  const StringCordView& text_str() const {
+    return text_view_;
+  }
+
+  char char_at(size_t index) const {
+    return text_view_.at(index);
+  }
+
+  size_t size() const {
+    return text_view_.size();
+  }
+
+  c10::optional<std::string>& filename() {
+    return filename_;
+  }
+
+  size_t starting_line_no() const {
+    return starting_line_no_;
+  }
+
+  c10::optional<SourceRange> findSourceRangeThatGenerated(
+      const SourceRange& range);
+
+  ~Source() = default;
+
+ private:
+  void calc_line_start_offsets() {
+    line_starting_offsets_.clear();
+    line_starting_offsets_.push_back(0);
+    size_t pos = 0;
+    while ((pos = text_view_.find("\n", pos)) != std::string::npos) {
+      line_starting_offsets_.push_back(++pos);
+    }
+  }
+
+  StringCordView text_view_;
+
+  c10::optional<std::string> filename_;
+  // If filename_ is not present, starting_line_no_ is don't care
+  size_t starting_line_no_;
+  // Starting offsets for lines into the source. e.g. line 0 starts at
+  // line_starting_offsets_[0], etc.
+  std::vector<size_t> line_starting_offsets_;
+
+  std::shared_ptr<SourceRangeUnpickler> gen_ranges_;
+};
+
+// A SourceRange is a reference to subset of a Source, specified by `start` and
+// `end` byte offsets into the source text.
+struct TORCH_API SourceRange {
+  SourceRange(std::shared_ptr<Source> source_view, size_t start_, size_t end_)
+      : source_view_(std::move(source_view)), start_(start_), end_(end_) {
+    if (source_view_) {
+      start_iter_ = source_view_->text_str().iter_for_pos(start_);
+    }
+  }
+
+  SourceRange() : source_view_(nullptr), start_(0), end_(0) {}
+
+  SourceRange(
+      std::shared_ptr<Source> source_view_,
+      StringCordView::Iterator start_iter,
+      size_t end_)
+      : source_view_(std::move(source_view_)),
+        start_(start_iter.pos()),
+        end_(end_),
+        start_iter_(start_iter) {}
+
+  const c10::string_view token_text() const {
+    size_t size = end() - start();
+    return start_iter_.rest_line().substr(0, size);
+  }
+
+  const StringCordView text() const {
+    return source_view_->text_str().substr(start(), end() - start());
+  }
+  size_t size() const {
+    return end() - start();
+  }
+  static const size_t CONTEXT = 3;
+  void highlight(std::ostream& out) const;
+
+  // Customizable version of 'highlight' method.
+  void print_with_context(
+      std::ostream& out,
+      size_t context,
+      bool highlight,
+      const std::string& funcname) const;
+
+  const std::shared_ptr<Source>& source() const {
+    return source_view_;
+  }
+  size_t start() const {
+    return start_;
+  }
+  size_t end() const {
+    return end_;
+  }
+  std::string str() const {
+    std::stringstream ss;
+    highlight(ss);
+    return ss.str();
+  }
+
+  c10::optional<std::tuple<std::string, size_t, size_t>> file_line_col() const {
+    if (!source_view_ || !source()->filename()) {
+      return c10::nullopt;
+    }
+
+    auto lineno = source_view_->lineno_for_offset(start_);
+    auto col_offset = (int)start_ - (int)source_view_->offset_for_line(lineno);
+    // TODO: c10::optional<>::value returns an rvalue ref so can't use it here??
+    return std::make_tuple<std::string, size_t, size_t>(
+        source_view_->filename().value_or(""),
+        source_view_->lineno_to_source_lineno(lineno),
+        (size_t)col_offset);
+  }
+
+  bool operator==(const SourceRange& rhs) const {
+    return start() == rhs.start() && end() == rhs.end() &&
+        source() == rhs.source();
+  }
+
+  bool operator!=(const SourceRange& rhs) const {
+    return !(*this == rhs);
+  }
+
+  c10::optional<SourceRange> findSourceRangeThatGenerated() const {
+    if (!source_view_) {
+      return c10::nullopt;
+    }
+    return source_view_->findSourceRangeThatGenerated(*this);
+  }
+
+ protected:
+  std::shared_ptr<Source> source_view_;
+
+ private:
+  size_t start_;
+  size_t end_;
+  StringCordView::Iterator start_iter_;
+};
+
+// OwnedSourceRange is just like a SourceRange except that it owns a `Source`
+// instead of `Source`. Thus OwnedSourceRange owns a copy of source text.
+struct OwnedSourceRange : public SourceRange {
+  explicit OwnedSourceRange(const SourceRange& source_range)
+      : SourceRange(source_range) {
+    const auto& source = source_range.source();
+    if (source) {
+      source_view_ = std::make_shared<Source>(
+          source->text_str().str(),
+          source->filename(),
+          source->starting_line_no());
+    }
+  }
+};
+
+struct TORCH_API SourceRangeHasher {
+ public:
+  size_t operator()(const torch::jit::SourceRange& key) const;
+};
+
+struct StackEntry {
+  std::string filename;
+  SourceRange range;
+};
+
+TORCH_API void format_stack_trace(
+    std::ostream& out,
+    const std::vector<StackEntry>& entries);
+
+inline std::ostream& operator<<(std::ostream& out, const SourceRange& range) {
+  range.highlight(out);
+  return out;
+}
+
+// A pair of (byte offset, SourceRange) describing a specific segment
+// of the output stream
+struct TaggedRange {
+  TaggedRange(size_t bytes, SourceRange range)
+      : bytes(bytes), range(std::move(range)) {}
+  size_t bytes;
+  SourceRange range;
+};
+using SourceRangeRecords = std::vector<TaggedRange>;
+using SourceRangeTagMap =
+    std::unordered_map<SourceRange, int64_t, SourceRangeHasher>;
+
+} // namespace jit
+} // namespace torch
+
+namespace std {
+template <>
+struct iterator_traits<torch::jit::StringCordView::Iterator> {
+  using value_type = char;
+  using difference_type = ptrdiff_t;
+  using pointer = char*;
+  using reference = char&;
+  using iterator_category = std::forward_iterator_tag;
+};
+} // namespace std

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/source_ref.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+
+#include <ATen/core/ivalue.h>
+#include <c10/macros/Export.h>
+#include <torch/csrc/jit/frontend/source_range.h>
+
+namespace torch {
+namespace jit {
+
+/**
+ * SourceRef does two things:
+ *   1. Owns a Source object.
+ *   2. Serves as lookup key to the owned Source in associative containers, for
+ *      runtime data aggregation.
+ * We don't want to use std::shared_ptr<Source> directly because we want to
+ * support heteogeneous lookup, and also shared_ptr is an implementation detail
+ * which should be encapsulated.
+ */
+class TORCH_API SourceRef : public CustomClassHolder {
+ public:
+  explicit SourceRef(std::shared_ptr<Source> source_view)
+      : source_view_(std::move(source_view)) {}
+  bool operator==(const SourceRef& other) const {
+    return source_view_ == other.source_view_;
+  }
+  bool operator<(const Source& other) const {
+    return source_view_.get() < &other;
+  }
+  friend bool operator<(const Source& other, const SourceRef& self) {
+    return &other < self.source_view_.get();
+  }
+  bool operator<(const SourceRef& other) const {
+    return *this < *other.source_view_.get();
+  }
+  const Source* operator->() const {
+    return source_view_.get();
+  }
+
+ private:
+  std::shared_ptr<Source> source_view_;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/strtod.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <c10/macros/Macros.h>
+
+namespace torch {
+namespace jit {
+
+TORCH_API double strtod_c(const char* nptr, char** endptr);
+TORCH_API float strtof_c(const char* nptr, char** endptr);
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/sugared_value.h

@@ -0,0 +1,857 @@
+#pragma once
+#include <c10/util/Optional.h>
+#include <functional>
+#include <memory>
+#include <string>
+#include <utility>
+
+#include <ATen/core/symbol.h>
+#include <caffe2/serialize/versions.h>
+#include <torch/csrc/jit/api/module.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/schema_matching.h>
+#include <torch/csrc/jit/frontend/versioned_symbols.h>
+#include <torch/csrc/jit/ir/ir.h>
+
+namespace torch {
+namespace jit {
+
+using SugaredValuePtr = std::shared_ptr<SugaredValue>;
+
+// The AST can contain nodes like `self`, `self.b` or `python_fn` that
+// are not first-class values in the graph representation, but instead
+// will be desugared based on how they are used in the AST.
+
+// SugaredValue is used to temporarily represent these values in a way
+// that separates their behavior from the AST -> IR converter itself.
+// This allows us to keep dependencies on python minimal.
+
+struct TORCH_API SugaredValue
+    : public std::enable_shared_from_this<SugaredValue> {
+  // what is this node? for error reporting (e.g. Module, python function)
+  virtual std::string kind() const = 0;
+
+  // what can we do with this thing?
+  // use it as a value e.g.  `this + 4`
+  virtual Value* asValue(const SourceRange& loc, GraphFunction& m) {
+    throw ErrorReport(loc) << kind() << " cannot be used as a value";
+  }
+
+  // select an attribute on it, e.g. `this.field`
+  virtual std::shared_ptr<SugaredValue> attr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) {
+    throw ErrorReport(loc) << "attribute lookup is not defined on " << kind();
+  }
+
+  virtual bool hasAttr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) {
+    throw ErrorReport(loc) << "attribute lookup is not defined on " << kind();
+  }
+
+  // assign an attribute on it, e.g. `this.field = newValue`
+  virtual void setAttr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field,
+      Value* newValue) {
+    throw ErrorReport(loc) << "attribute assignment is not defined on "
+                           << kind();
+  }
+
+  // use it as a vector of values, e.g. a tuple of values as return value from
+  // a method invocation
+  virtual std::vector<std::shared_ptr<SugaredValue>> asTuple(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const c10::optional<size_t>& size_hint = {}) {
+    throw ErrorReport(loc) << kind() << " cannot be used as a tuple";
+  }
+
+  // TODO @wconstab refactor to use ModuleValue::asTuple instead of new API
+  virtual SugaredValuePtr asTupleValue(
+      const SourceRange& loc,
+      GraphFunction& m) {
+    throw ErrorReport(loc) << kind() << " cannot be used as a tuplevalue";
+  }
+
+  virtual std::vector<std::shared_ptr<SugaredValue>> asType(
+      const SourceRange& loc,
+      Method& m) {
+    throw ErrorReport(loc) << kind() << " cannot be used as a type";
+  }
+
+  // call it like a function, e.g. `outputs = this(inputs)`
+  virtual std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      // note: names for args will be 'argument 0', 'argument 1', etc..
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) {
+    // n_binders is always set to the number of variables an expression is
+    // syntactically bound to:
+    //     a = foo() # 1 binder (note in this case the single binder might be a
+    //     tuple) a, * b = foo() # 1 binder a, b = foo() # 2 binders foo() # 0
+    //     binders
+    //
+    // In subexpressions, like bar() in foo(bar()), n_binders is always set to
+    // 1. n_binders is used as a hint to subexpressions to determine how many
+    // values they should return when that number is ambiguous statically. In
+    // particular it is currently used to decide how many tensors a call to a
+    // python function will return. It is only a hint, functions do not have to
+    // check that n_binders match the number of things they are returning, the
+    // assignment logic will do that anyway.
+
+    throw ErrorReport(loc) << "cannot call a " << kind();
+  }
+
+  // This function is called when to convert a SugaredValue to its iterator.
+  // For example, when iterating through a Dict we iterate over its keys
+  virtual std::shared_ptr<SugaredValue> iter(
+      const SourceRange& loc,
+      GraphFunction& m) {
+    throw ErrorReport(loc) << kind() << " cannot be used as an iterable";
+  }
+
+  // If we are iterating over a Sugared Value and it returns a value from this
+  // function, then we emit an unrolled loop over the variable. This allows us
+  // to support containers of Heterogenous types, like Module Containers &
+  // Tuples
+  virtual c10::optional<int64_t> staticLen() {
+    return c10::nullopt;
+  }
+
+  // When iterating over this SugaredValue, should we emit the for loop as an
+  // unrolled loop.
+  bool shouldEmitUnrolled() {
+    return staticLen() != c10::nullopt;
+  }
+
+  // return length of this thing, if not then it can't be iterated.
+  // If it does not have a statically-determinable length, then it cannot
+  // be iterated over with a modulelist. If it does it must return a constant
+  // Value *
+  virtual Value* len(const SourceRange& loc, GraphFunction& m) {
+    throw ErrorReport(loc) << "'" << kind() << "'"
+                           << " object is not iterable";
+  }
+
+  // expression for ith elemement for iterable value
+  virtual std::shared_ptr<SugaredValue> getitem(
+      const SourceRange& loc,
+      GraphFunction& m,
+      Value* idx,
+      TypePtr type_hint = nullptr) {
+    throw ErrorReport(loc) << "'" << kind() << "'"
+                           << " object is not subscriptable";
+  }
+
+  virtual ~SugaredValue() = default;
+};
+
+// most things in the environment are just simple value types
+// and not special python syntax sugar types
+struct TORCH_API SimpleValue : public SugaredValue {
+  SimpleValue(Value* value) : value_(value) {}
+  std::string kind() const override {
+    std::stringstream ss;
+    // NOLINTNEXTLINE(clang-analyzer-core.CallAndMessage)
+    ss << "value of type '" << value_->type()->annotation_str() << "'";
+    return ss.str();
+  }
+  Value* asValue(const SourceRange& range, GraphFunction& m) override {
+    return value_;
+  }
+  std::vector<std::shared_ptr<SugaredValue>> asTuple(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const c10::optional<size_t>& size_hint = {}) override;
+  std::shared_ptr<SugaredValue> attr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) override;
+
+  bool hasAttr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) override;
+
+  void setAttr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field,
+      Value* newValue) override;
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      // note: names for args will be 'argument 0', 'argument 1', etc..
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+
+  std::shared_ptr<SugaredValue> iter(const SourceRange& loc, GraphFunction& m)
+      override;
+
+  Value* getValue() const {
+    return value_;
+  }
+
+  Value* len(const SourceRange& loc, GraphFunction& m) override;
+  SugaredValuePtr getitem(
+      const SourceRange& loc,
+      GraphFunction& m,
+      Value* idx,
+      TypePtr type_hint = nullptr) override;
+
+ private:
+  Value* value_;
+};
+
+struct TORCH_API BuiltinFunction : public SugaredValue {
+  BuiltinFunction(Symbol symbol, c10::optional<NamedValue> self)
+      : symbol(symbol), self(std::move(self)) {}
+
+  // The symbol of the function (e.g. `aten::relu`).
+  Symbol symbol;
+
+  // if this is method, then this is the self argument.
+  c10::optional<NamedValue> self;
+  std::string kind() const override {
+    return "builtin";
+  }
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+
+  // try to create this builtin but if it doesn't exist or the self argument
+  // cannot possibly match, then return nullptr. Use in situations where it is
+  // not clear if it is a valid builtin
+  static std::shared_ptr<BuiltinFunction> tryCreate(
+      Symbol symbol,
+      c10::optional<NamedValue> self);
+};
+
+struct TORCH_API SugaredTupleValue : public SugaredValue {
+  explicit SugaredTupleValue(std::vector<std::shared_ptr<SugaredValue>> tup)
+      : tup_(std::move(tup)){};
+
+  std::vector<std::shared_ptr<SugaredValue>> asTuple(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const c10::optional<size_t>& size_hint = {}) override {
+    return tup_;
+  };
+
+  Value* asValue(const SourceRange& loc, GraphFunction& m) override {
+    std::vector<Value*> vec;
+    vec.reserve(tup_.size());
+    for (const auto& sv : tup_) {
+      vec.push_back(sv->asValue(loc, m));
+    }
+    Graph& g = *m.graph();
+    return g.insertNode(g.createTuple(vec))->output();
+  }
+
+  std::string kind() const override {
+    return "Tuple";
+  }
+
+  SugaredValuePtr getitem(
+      const SourceRange& loc,
+      GraphFunction& m,
+      Value* idx,
+      TypePtr type_hint = nullptr) override {
+    if (!(idx->type()->cast<IntType>() && toIValue(idx))) {
+      throw ErrorReport(loc)
+          << "Expected integer literal for index but got a variable or non-integer. "
+          << "ModuleList/Sequential indexing is only supported with integer literals. "
+          << "For example, 'i = 4; self.layers[i](x)' will fail because i is not a literal. "
+          << "Enumeration is supported, e.g. 'for index, v in enumerate(self): out = v(inp)'";
+    }
+    auto index = toIValue(idx)->toInt();
+    int64_t adj_index =
+        (index < 0) ? index + static_cast<int64_t>(tup_.size()) : index;
+    if (!(adj_index >= 0 && adj_index < static_cast<int64_t>(tup_.size()))) {
+      throw ErrorReport(loc)
+          << "Index " << index << " out of range of length " << tup_.size();
+    }
+    return tup_.at(adj_index);
+  }
+
+  // This function is called when a SugaredValue is used to convert a
+  // SugaredValue to its iterator. For example, when iterating through a Dict we
+  // iterate over its keys
+  std::shared_ptr<SugaredValue> iter(const SourceRange& loc, GraphFunction& m)
+      override {
+    return shared_from_this();
+  };
+
+  // Because this is used to contain SugaredValues of Heterogenous types,
+  // we define staticLen() so that when this is iterated over it is emitted
+  // as an unrolled loop.
+  c10::optional<int64_t> staticLen() override {
+    return static_cast<int64_t>(tup_.size());
+  }
+
+  std::vector<std::shared_ptr<SugaredValue>> tup_;
+};
+
+struct TORCH_API BuiltinModule : public SugaredValue {
+  BuiltinModule(std::string name, c10::optional<int64_t> version = at::nullopt)
+      : name(std::move(name)), version(version) {}
+
+  std::string kind() const override {
+    return "builtin module";
+  }
+  std::shared_ptr<SugaredValue> attr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) override {
+    if (field == "autograd") {
+      // When refering torch.autograd, it is also considered to be a
+      // BuiltinModule and we will dispatch to the aten operators for the
+      // methods under its module.
+      return std::make_shared<BuiltinModule>("aten", version);
+    }
+
+    auto sym = Symbol::fromQualString(name + "::" + field);
+    return std::make_shared<BuiltinFunction>(sym, c10::nullopt);
+  }
+
+ private:
+  std::string name;
+  // when we add operator versioning, emit this op as it exising at 'version'
+  // if not set, use the latest version
+  c10::optional<int64_t> version;
+};
+
+// Represents a class, analagous to `int` or `dict`. Instances of classes,
+// like `1` or `{"foo": 5}`, are represented as SimpleValues
+struct TORCH_API ClassValue : public SugaredValue {
+  explicit ClassValue(ClassTypePtr type) : type_(std::move(type)) {}
+
+  // Call the type's constructor, as in:
+  //    n = Foo(constructor_arg)
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+
+  std::shared_ptr<SugaredValue> attr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) override;
+
+  std::string kind() const override {
+    return type_->str();
+  }
+
+  ClassTypePtr type_;
+};
+
+struct TORCH_API NamedTupleConstructor : public SugaredValue {
+  explicit NamedTupleConstructor(TupleTypePtr type) : type_(std::move(type)) {}
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+
+  std::string kind() const override {
+    return type_->str();
+  }
+
+  TupleTypePtr type_;
+};
+
+struct FunctionValue : public SugaredValue {
+  FunctionValue(Function* callee) : callees_({callee}) {}
+  FunctionValue(const StrongFunctionPtr& p)
+      : callees_({p.function_}), cu_(p.cu_) {}
+  FunctionValue(const std::vector<StrongFunctionPtr>& callees) {
+    for (const StrongFunctionPtr& callee : callees) {
+      cu_ = cu_ ? cu_ : callee.cu_;
+      TORCH_INTERNAL_ASSERT(callee.cu_ == cu_);
+      callees_.push_back(callee.function_);
+    }
+  }
+
+  std::string kind() const override {
+    return "function";
+  }
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& f,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override {
+    std::vector<const FunctionSchema*> schemas;
+    for (Function* callee : callees_) {
+      try {
+        callee->ensure_defined();
+      } catch (const RecursiveMethodCallError&) {
+        throw ErrorReport(loc)
+            << " function '" << callee->name() << "' is called recursively. "
+            << "Recursive calls are not supported";
+      }
+      schemas.push_back(&callee->getSchema());
+    }
+    auto match = matchSchemas(schemas, loc, *f.graph(), args, kwargs);
+    Value* output =
+        f.graph()->insertFunctionCall(callees_[match.first], match.second);
+    output->node()->setSourceRange(loc);
+    return std::make_shared<SimpleValue>(output);
+  }
+
+  const std::vector<Function*>& callees() {
+    return callees_;
+  }
+
+ private:
+  std::vector<Function*> callees_;
+  // TODO holding this thing is creepy
+  std::shared_ptr<CompilationUnit> cu_;
+};
+
+struct TORCH_API ClosureValue : public SugaredValue {
+  ClosureValue(Value* value) : value_(value) {
+    TORCH_INTERNAL_ASSERT(value_->node()->kind() == prim::Closure);
+  }
+  std::string kind() const override {
+    return "closure";
+  }
+  Value* asValue(const SourceRange& range, GraphFunction& m) override {
+    return value_;
+  }
+  Value* value_;
+};
+
+// defines how a method obtained from a module/class/interface behaves in script
+struct MethodValue : public SugaredValue {
+  MethodValue(Value* self, std::vector<std::string> method_names)
+      : self_(self), method_names_(std::move(method_names)) {}
+  MethodValue(Value* self, std::string method_name)
+      : MethodValue(self, std::vector<std::string>({std::move(method_name)})) {}
+
+  std::string kind() const override {
+    return "method";
+  }
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& f,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override {
+    std::vector<NamedValue> argsWithSelf = {self_};
+    argsWithSelf.insert(argsWithSelf.end(), args.begin(), args.end());
+    std::vector<const FunctionSchema*> schemas;
+    for (const std::string& method_name : method_names_) {
+      if (auto class_type = self_->type()->cast<ClassType>()) {
+        Function& method = class_type->getMethod(method_name);
+        try {
+          method.ensure_defined();
+        } catch (const RecursiveMethodCallError&) {
+          throw ErrorReport(loc)
+              << " method '" << method.name() << "' is called recursively. "
+              << "Recursive calls are not supported";
+        }
+        schemas.push_back(&method.getSchema());
+      } else if (auto interface_type = self_->type()->cast<InterfaceType>()) {
+        schemas.push_back(interface_type->getMethod(method_name));
+      } else {
+        TORCH_INTERNAL_ASSERT(
+            false, "method constructed that is not a class or interface");
+      }
+    }
+    auto match = matchSchemas(schemas, loc, *f.graph(), argsWithSelf, kwargs);
+    Value* output =
+        f.graph()->insertMethodCall(method_names_[match.first], match.second);
+    output->node()->setSourceRange(loc);
+    return std::make_shared<SimpleValue>(output);
+  }
+
+ private:
+  Value* self_;
+  std::vector<std::string> method_names_;
+};
+
+struct TORCH_API PrintValue : public SugaredValue {
+  std::string kind() const override {
+    return "print";
+  }
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+};
+
+// expressions like int(x)
+// these are the same as call prim::Int or equivalent except it
+// is a noop when the input is a subtype of 'type'
+struct TORCH_API CastValue : public BuiltinFunction {
+  CastValue(TypePtr type, c10::Symbol method)
+      : BuiltinFunction(method, c10::nullopt), type_(std::move(type)) {}
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override {
+    if (args.size() == 1 && kwargs.empty()) {
+      auto len_op = std::make_shared<BuiltinFunction>(aten::len, at::nullopt);
+      auto gt_op = std::make_shared<BuiltinFunction>(aten::gt, at::nullopt);
+      auto zero = m.graph()->insertConstant(0);
+
+      auto v = args[0].value(*m.graph());
+      if (v->type()->isSubtypeOf(*type_)) {
+        return std::make_shared<SimpleValue>(v);
+      } else if (
+          *type_ == *BoolType::get() &&
+          (v->type()->isSubtypeOf(*AnyListType::get()) ||
+           v->type()->isSubtypeOf(*StringType::get()) ||
+           v->type()->cast<DictType>())) {
+        auto len = len_op->call(loc, m, {v}, {}, 1);
+        return gt_op->call(loc, m, {len->asValue(loc, m), zero}, {}, 1);
+      }
+    }
+    return BuiltinFunction::call(loc, m, args, kwargs, n_binders);
+  }
+
+ private:
+  TypePtr type_;
+};
+
+struct TORCH_API TensorCastValue : public SugaredValue {
+  TensorCastValue(at::ScalarType type, NamedValue self)
+      : dtype_(type), self_(std::move(self)) {}
+
+  std::string kind() const override {
+    return "Cast";
+  }
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override {
+    TORCH_INTERNAL_ASSERT(args.empty() && kwargs.empty());
+    Value* dtype_const = m.graph()->insertConstant(dtype_, loc);
+    std::vector<NamedValue> kwargs_{
+        self_, NamedValue(loc, "dtype", dtype_const)};
+    Value* casted_val = m.graph()->insert(
+        /*opname=*/Symbol::fromQualString("aten::to"),
+        /*args=*/args,
+        /*kwargs=*/kwargs_,
+        /*range=*/loc);
+    return std::make_shared<SimpleValue>(casted_val);
+  }
+
+  at::ScalarType dtype_;
+  NamedValue self_;
+};
+
+// builtins operators and functions that call a method if it exists
+// on a class type, like 'len(x)' and 'x + y'
+struct TORCH_API MagicMethod : public SugaredValue {
+  MagicMethod(std::string desugared_name, SugaredValuePtr base)
+      : base_value_(std::move(base)),
+        desugared_name_(std::move(desugared_name)) {}
+
+  std::string kind() const override {
+    return desugared_name_;
+  }
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> kwargs,
+      size_t n_binders) override;
+
+ private:
+  SugaredValuePtr base_value_;
+  std::string desugared_name_;
+};
+
+// things that look like function applications, but
+// perform non-standard evaluation are represented
+// with SpecialFormValues, e.g.
+//   isinstance(x, int)
+//   fork(fn)
+//   annotate(int, 3)
+// The implementation of each value is handled by a case inside emitApplyExpr
+struct TORCH_API SpecialFormValue : public SugaredValue {
+  SpecialFormValue(Symbol form) : form_(form) {}
+  std::string kind() const override {
+    return form_.toUnqualString();
+  }
+  Symbol form() const {
+    return form_;
+  }
+  static std::shared_ptr<SpecialFormValue> create(Symbol form) {
+    return std::make_shared<SpecialFormValue>(form);
+  }
+
+ private:
+  Symbol form_;
+};
+
+struct TORCH_API LegacyTensorConstructor : public SpecialFormValue {
+  LegacyTensorConstructor(Symbol form, at::ScalarType dtype, at::Device device)
+      : SpecialFormValue(form), device_(device), dtype_(dtype) {}
+
+  static std::shared_ptr<LegacyTensorConstructor> create(
+      Symbol form,
+      at::ScalarType dtype,
+      at::Device device) {
+    return std::make_shared<LegacyTensorConstructor>(form, dtype, device);
+  }
+  at::ScalarType dtype() const {
+    return dtype_;
+  }
+
+ private:
+  at::Device device_;
+  at::ScalarType dtype_;
+};
+
+// matched against for special handling of range expressions
+struct TORCH_API RangeValue : SugaredValue {
+  RangeValue(
+      const SourceRange& loc,
+      GraphFunction& m,
+      std::vector<Value*> input,
+      c10::optional<int64_t> static_len = c10::nullopt);
+
+  std::string kind() const override {
+    return "range";
+  }
+  Value* len(const SourceRange& loc, GraphFunction& m) override;
+  SugaredValuePtr getitem(
+      const SourceRange& loc,
+      GraphFunction& m,
+      Value* idx,
+      TypePtr type_hint = nullptr) override;
+  std::shared_ptr<SugaredValue> iter(const SourceRange& loc, GraphFunction& m)
+      override;
+
+  // When Range is instantiated via enumerate(iterable_with_static_len),
+  // then it takes the static length of the iterable
+  c10::optional<int64_t> staticLen() override {
+    return static_len_;
+  }
+
+ private:
+  Value* start_{};
+  Value* end_{};
+  Value* step_{};
+  // a flag to determine if it's a simple range() call with only end_ from
+  // arguments If true, we will not insert length calculation and index
+  // derivation nodes to simplify the graph and enable more possible
+  // optimizations
+  bool has_only_end_{};
+  c10::optional<int64_t> static_len_;
+};
+
+// Specialized Tree structure to matched against for special handling
+// of builtin functions iterables expressions like zip(), enumerate(), etc.
+// zip and enumerate can be modeled as a tree of SimpleValue/RangeValue:
+//    zip(x, y) ->  (x, y) with tuple assignment to each loop target
+//    enumerate(x) -> (range(0, math.inf, 1), x)
+// So a complicated expression like zip(a, enumerate(b), range(0, 100)) will be:
+// (a, (range(0, math.inf, 1), b), range(0, 100))
+// We use those base iterables to fill in the loop information like
+// max_trip_count and set the value table for loop targets
+// Iterables can contain lists of SugaredValues like ModuleLists. If it
+// does, then we emit it unrolled and require that all values it contains
+// have a statically-determinable length.
+struct TORCH_API IterableTree : SugaredValue {
+  IterableTree() = default;
+  IterableTree(
+      const SourceRange& range,
+      GraphFunction& m,
+      at::ArrayRef<SugaredValuePtr> children) {
+    for (const auto& child : children) {
+      addChild(range, m, child);
+    }
+  }
+  std::string kind() const override {
+    return "iterabletree";
+  }
+
+  std::shared_ptr<SugaredValue> iter(const SourceRange& loc, GraphFunction& m)
+      override {
+    return shared_from_this();
+  }
+
+  void addChild(
+      const SourceRange& range,
+      GraphFunction& m,
+      const SugaredValuePtr& iter_value);
+
+  std::vector<SugaredValuePtr> get_children() {
+    return children_;
+  }
+
+  // If this iterable contains a ModuleList or Tuple, then it will have a
+  // static length, and we will emit it as an unrolled for loop.
+  c10::optional<int64_t> staticLen() override {
+    return unroll_length_;
+  }
+
+  // given a IterableTree node, get all the base iterables/leaves under the
+  // IterableTree node. This enables
+  // us to get all the basic SugaredValues that contains valid loop information
+  // with len() and getitem()
+  std::vector<SugaredValuePtr> get_base_iterables();
+
+  Value* len(const SourceRange& loc, GraphFunction& m) override;
+  SugaredValuePtr getitem(
+      const SourceRange& loc,
+      GraphFunction& m,
+      Value* idx,
+      TypePtr type_hint = nullptr) override;
+
+ private:
+  c10::optional<int64_t> unroll_length_ = c10::nullopt;
+  std::vector<SugaredValuePtr> children_;
+};
+
+static inline std::vector<Value*> toValues(
+    Graph& g,
+    at::ArrayRef<NamedValue> nvs) {
+  return fmap(nvs, [&](const NamedValue& v) { return v.value(g); });
+}
+
+struct SimpleSelf : public Self {
+  explicit SimpleSelf(ClassTypePtr classType)
+      : Self(), classType_(std::move(classType)) {}
+  std::shared_ptr<SugaredValue> makeSugared(Value* v) const override {
+    v->setType(classType_);
+    return std::make_shared<SimpleValue>(v);
+  }
+  ClassTypePtr getClassType() const override {
+    return classType_;
+  }
+
+ private:
+  ClassTypePtr classType_;
+};
+
+// This is not a SimpleValue so it can not pass through the code paths that
+// expect a SimpleValue as a sugared value.
+struct TORCH_API ExceptionMessageValue : public SugaredValue {
+  explicit ExceptionMessageValue(
+      Value* value,
+      Value* qualified_class_name = nullptr)
+      : value_(value), qualified_class_name_(qualified_class_name) {}
+
+  std::string kind() const override {
+    return "exception message";
+  }
+
+  Value* getValue() {
+    return value_;
+  }
+
+  // qualified python class name
+  Value* getQualifiedClassName() {
+    return qualified_class_name_;
+  }
+
+ private:
+  Value* value_;
+  Value* qualified_class_name_;
+};
+
+struct TORCH_API ExceptionValue : public SugaredValue {
+  explicit ExceptionValue(std::string message) : message_(std::move(message)) {}
+
+  std::string kind() const override {
+    return "exception";
+  }
+
+  std::shared_ptr<SugaredValue> call(
+      const SourceRange& loc,
+      GraphFunction& m,
+      at::ArrayRef<NamedValue> args,
+      at::ArrayRef<NamedValue> /*attributes*/,
+      size_t /*n_binders*/) override {
+    auto exception_message = insertConstant(*m.graph(), message_ + ": ", loc);
+    for (auto& input : args) {
+      auto input_str = input.value(*m.graph());
+      if (!input_str->type()->isSubtypeOf(*StringType::get())) {
+        input_str =
+            emitBuiltinCall(loc, *m.graph(), aten::str, {input_str}, {});
+      }
+      exception_message = emitBuiltinCall(
+          loc, *m.graph(), aten::add, {exception_message, input_str}, {});
+    }
+    return std::make_shared<ExceptionMessageValue>(exception_message);
+  }
+
+  std::string message_;
+};
+
+struct TORCH_API SugaredEnumClass : public SugaredValue {
+  explicit SugaredEnumClass(EnumTypePtr enum_type)
+      : enum_type_(std::move(enum_type)) {}
+
+  std::string kind() const override {
+    return "EnumClass";
+  }
+
+  SugaredValuePtr attr(
+      const SourceRange& loc,
+      GraphFunction& m,
+      const std::string& field) override;
+
+  SugaredValuePtr iter(const SourceRange& loc, GraphFunction& m) override;
+
+ private:
+  EnumTypePtr enum_type_;
+};
+
+struct TORCH_API SliceValue : public SugaredValue {
+  explicit SliceValue(Value* start, Value* stop, Value* step)
+      : start_(start), stop_(stop), step_(step) {}
+
+  std::string kind() const override {
+    return "Python slice value";
+  }
+
+  Value* start() {
+    return start_;
+  };
+  Value* stop() {
+    return stop_;
+  };
+  Value* step() {
+    return step_;
+  };
+
+ private:
+  Value* start_;
+  Value* stop_;
+  Value* step_;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/tracer.h

@@ -0,0 +1,414 @@
+#pragma once
+
+#include <ATen/core/Dimname.h>
+#include <ATen/core/class_type.h>
+#include <ATen/core/jit_type.h>
+#include <ATen/core/stack.h>
+#include <ATen/core/symbol.h>
+#include <c10/util/Exception.h>
+#include <torch/csrc/Export.h>
+
+#include <torch/csrc/jit/frontend/source_range.h>
+#include <torch/csrc/utils/variadic.h>
+
+#include <cstdint>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+
+namespace torch {
+namespace jit {
+struct Node;
+struct Value;
+struct Graph;
+struct Module;
+
+namespace tracer {
+
+using ::c10::ivalue::Shared;
+
+using ::c10::IValue;
+using ::c10::ivalue::Future;
+
+using ::c10::ArrayRef;
+using ::c10::TupleType;
+using ::c10::TupleTypePtr;
+using ::c10::ivalue::ConstantString;
+
+using torch::autograd::Variable;
+using variable_list = std::vector<Variable>;
+
+TORCH_API std::atomic<bool>& getTracerStateWarnMode();
+
+struct TORCH_API TracingState
+    : public std::enable_shared_from_this<TracingState> {
+  TracingState();
+  ~TracingState();
+
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::shared_ptr<Graph> graph;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool warn = getTracerStateWarnMode();
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool strict = true;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  bool force_outplace = false;
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  std::function<std::string(const Variable& var)> lookup_var_name_fn =
+      [](const Variable& var) { return ""; };
+
+  void enterFrame() {
+    env_stack.emplace_back();
+  }
+
+  void leaveFrame() {
+    env_stack.pop_back();
+  }
+
+  void setValue(const IValue& v, Value* value);
+  void delValue(const IValue& var);
+  Value* getValue(const IValue& var);
+  Value* getOutput(const IValue& var, size_t i);
+  bool hasValue(const IValue& var) const;
+
+  Node* createNode(c10::Symbol op_name, size_t num_outputs);
+  void insertNode(Node* node);
+
+ private:
+  using WeakIValue = at::WeakIValue;
+
+  struct WeakIValueHasher {
+    size_t operator()(const WeakIValue& t) const {
+      return t.hash();
+    }
+  };
+
+  struct WeakIValueEq {
+    bool operator()(const WeakIValue& t1, const WeakIValue& t2) const {
+      return t1.isSameIdentity(t2);
+    }
+  };
+
+  using Frame =
+      std::unordered_map<WeakIValue, Value*, WeakIValueHasher, WeakIValueEq>;
+  std::vector<Frame> env_stack;
+};
+
+// This is meant to be used as a thread local place, where we can store extra
+// info that gets lost when we call into ATen from Python bindings. One example
+// for when this happens is when we get an IntArrayRef argument with e.g. sizes
+// for view. When tracing, those might be tensors, which let us encode extra
+// data dependencies, but once they get to the ATen call where we actually have
+// the tracing logic, they get converted into a raw IntArrayRef, and we loose
+// all information. To prevent this, we temporarily stash it in here.
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct ArgumentStash {
+  struct IntArrayRefTrace : std::vector<Value*> {
+    IntArrayRefTrace(int size) : std::vector<Value*>(size, nullptr) {}
+  };
+
+  static bool empty() {
+    return stash.intlists.empty();
+  }
+
+  TORCH_API static void stashIntArrayRefElem(
+      const std::string& arg_name,
+      size_t size,
+      size_t idx,
+      const Variable& var);
+
+  static bool hasIntArrayRef(const std::string& arg_name) {
+    return stash.intlists.count(arg_name) > 0;
+  }
+
+  static IntArrayRefTrace popIntArrayRef(const std::string& arg_name) {
+    auto info = std::move(stash.intlists.at(arg_name));
+    stash.intlists.erase(arg_name);
+    return info;
+  }
+
+  // Value stashing: Use these methods to stash arguments which correspond
+  // to regular Value*'s in the graph. i.e. they don't require special
+  // handling like in the case of IntArrayRefs
+  TORCH_API static void stashValue(
+      const std::string& arg_name,
+      size_t idx,
+      const Variable& var,
+      const c10::TypePtr& type = nullptr);
+
+  static bool hasValue(const std::string& arg_name) {
+    return stash.values.count(arg_name) > 0;
+  }
+
+  static Value* popValue(const std::string& arg_name) {
+    auto info = stash.values.at(arg_name);
+    stash.values.erase(arg_name);
+    return info;
+  }
+
+ private:
+  static thread_local ArgumentStash stash;
+  std::unordered_map<std::string, IntArrayRefTrace> intlists;
+  std::unordered_map<std::string, Value*> values;
+};
+
+// Retrieve or set the current tracing state. Returns a nullptr if tracing is
+// disabled.
+TORCH_API const std::shared_ptr<TracingState>& getTracingState();
+TORCH_API void setTracingState(std::shared_ptr<TracingState> state);
+
+inline bool isTracing() {
+  return static_cast<bool>(getTracingState());
+}
+
+using warn_fn_type = void (*)(const std::string& msg);
+TORCH_API extern const char* WARN_PYTHON_DATAFLOW;
+TORCH_API extern const char* WARN_CONSTRUCTOR;
+TORCH_API extern const char* WARN_RESIZE;
+TORCH_API extern const char* STRICT_TRACER_MSG;
+TORCH_API void _do_warn(const char* _reason, const char* _kind);
+inline void warn(const char* _reason, const char* _kind = nullptr) {
+  if (const auto& state = getTracingState()) {
+    if (!state->warn)
+      return;
+    _do_warn(_reason, _kind);
+  }
+}
+TORCH_API void setWarn(warn_fn_type fn);
+
+struct TORCH_API NoWarn {
+  NoWarn() : state(getTracingState()) {
+    if (state) {
+      prev = state->warn;
+      state->warn = false;
+    }
+  }
+  ~NoWarn() {
+    if (state) {
+      state->warn = prev;
+    }
+  }
+  std::shared_ptr<TracingState> state;
+  bool prev{false};
+};
+
+struct WithNestedTracingFrame {
+  WithNestedTracingFrame() {
+    getTracingState()->enterFrame();
+  }
+
+  ~WithNestedTracingFrame() {
+    getTracingState()->leaveFrame();
+  }
+};
+TORCH_API void recordSourceLocation(Node* n);
+TORCH_API void setRecordSourceLocation(void (*v)(Node*));
+
+TORCH_API std::vector<StackEntry> pythonCallstack();
+TORCH_API void setPythonCallstack(std::vector<StackEntry> (*v)());
+
+// Having finished adding a new 'node' to the graph IR 'setValueTrace'
+// associates this node with an output variable, so that further operations
+// involving this variable know which node in the IR to reference.
+TORCH_API void setValueTrace(const IValue& v, Value* value);
+
+TORCH_API void delValueTrace(const IValue& var);
+
+TORCH_API std::function<void()> pauseTracing();
+
+TORCH_API Value* getValueTrace(const IValue& var);
+
+TORCH_API std::pair<std::shared_ptr<TracingState>, Stack> trace(
+    Stack inputs,
+    const std::function<Stack(Stack)>& traced_fn,
+    std::function<std::string(const Variable&)> var_name_lookup_fn,
+    bool strict = true,
+    bool force_outplace = false,
+    Module* self = nullptr,
+    const std::vector<std::string>& argument_names = {});
+
+TORCH_API void abandon();
+
+// NB: those serve both as an intermediate steps in addInputs below,
+// as well as the overloads that terminate template recursion
+TORCH_API void addInputs(Node* n, const char* name, int64_t value);
+TORCH_API void addInputs(Node* n, const char* name, c10::SymInt value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<int64_t> value);
+TORCH_API void addInputs(Node* n, const char* name, bool value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<bool>& value);
+TORCH_API void addInputs(Node* n, const char* name, double value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<double>& value);
+TORCH_API void addInputs(Node* n, const char* name, const at::Scalar& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Scalar>& value);
+TORCH_API void addInputs(Node* n, const char* name, const at::Tensor& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Tensor>& value);
+TORCH_API void addInputs(Node* n, const char* name, ArrayRef<int64_t> value);
+TORCH_API void addInputs(Node* n, const char* name, c10::SymIntArrayRef value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<c10::SymInt> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<ArrayRef<int64_t>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const at::OptionalIntArrayRef& opt_value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const at::OptionalSymIntArrayRef& opt_value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    ArrayRef<at::Tensor> value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    std::vector<at::Tensor> value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    at::ITensorListRef value,
+    bool allow_undefined = false);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const List<c10::optional<at::Tensor>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    ArrayRef<c10::intrusive_ptr<c10::ivalue::Object>> value,
+    const c10::ClassTypePtr& class_type);
+TORCH_API void addInputs(Node* n, const char* name, ArrayRef<double> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<ArrayRef<double>>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::string_view value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<c10::string_view>& value);
+TORCH_API void addInputs(Node* n, const char* name, at::Device value);
+TORCH_API void addInputs(Node* n, const char* name, c10::Stream stream);
+TORCH_API void addInputs(Node* n, const char* name, at::Layout value);
+TORCH_API void addInputs(Node* n, const char* name, at::ScalarType value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::ScalarType>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Device>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Layout>& value);
+TORCH_API void addInputs(Node* n, const char* name, at::MemoryFormat value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    c10::optional<at::DimnameList> value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::MemoryFormat>& value);
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::optional<at::Generator>& value);
+
+inline void addInputs(
+    Node* n,
+    const char* name,
+    const std::vector<bool>& value) {
+  AT_ERROR("Tracing a list of bool type is currently not supported!");
+}
+
+template <typename T>
+void addInputs(Node* n, const char* name, ArrayRef<T> value) {
+  AT_ERROR("Tracing a list of arbitrary type is currently not supported!");
+}
+template <typename K, typename V>
+void addInputs(
+    Node* n,
+    const char* name,
+    const std::unordered_map<K, V>& value) {
+  AT_ERROR("Tracing a dict of arbitrary types is currently not supported!");
+}
+
+template <size_t N>
+void addInputs(Node* n, const char* name, std::array<bool, N> value) {
+  throw std::runtime_error(
+      "Found an unsupported argument type in the JIT tracer. File a bug report.");
+}
+
+TORCH_API void addInputs(
+    Node* n,
+    const char* name,
+    const c10::intrusive_ptr<c10::ivalue::Object>& obj);
+
+TORCH_API void ensureUniqueIfOutOfPlaced(
+    const char* name,
+    const at::Tensor& tensor);
+TORCH_API void ensureUniqueIfOutOfPlaced(
+    const char* name,
+    const c10::optional<at::Tensor>& tensor);
+
+template <
+    typename T,
+    typename = torch::enable_if_t<(
+        !std::is_convertible<torch::decay_t<T>, at::TensorList>::value &&
+        !std::is_convertible<torch::decay_t<T>, c10::List<at::Tensor>>::value &&
+        !std::is_convertible<torch::decay_t<T>, at::Tensor>::value &&
+        !std::is_convertible<
+            torch::decay_t<T>,
+            c10::intrusive_ptr<c10::ivalue::Object>>::value)>>
+void addOutput(Node* node, T&&) {
+  AT_ERROR(
+      "Found an unsupported argument type ",
+      c10::demangle_type<T>(),
+      " in the JIT tracer. File a bug report.");
+}
+TORCH_API void addOutput(Node* node, const at::Tensor& tensor);
+TORCH_API void setOutput(Value* value, const at::Tensor& output);
+TORCH_API void addOutput(Node* node, const std::vector<at::Tensor>& list);
+TORCH_API void addOutput(Node* node, const c10::List<at::Tensor>& list);
+TORCH_API void addOutput(
+    Node* node,
+    const c10::intrusive_ptr<c10::ivalue::Object>& output);
+
+TORCH_API autograd::Variable getSizeOf(
+    const autograd::Variable& var,
+    int64_t dim);
+
+TORCH_API autograd::Variable getNumelOf(const autograd::Variable& var);
+
+} // namespace tracer
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/tree.h

@@ -0,0 +1,220 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include <c10/util/SmallVector.h>
+#include <c10/util/intrusive_ptr.h>
+#include <torch/csrc/jit/frontend/lexer.h>
+
+namespace torch {
+namespace jit {
+
+// Trees are used to represent all forms of TC IR, pre- and post-typechecking.
+// Rather than have a full class hierarchy for all TC statements, trees are a
+// slight variation of Lisp s-expressions. For instance, the expression a*b+1
+// is represented as:
+// (+ (* (ident a) (ident b)) (const 1))
+// Atoms like 'a', 'b', and '1' are represented by subclasses of Tree which
+// define stringValue(). Everything else is a Compound object, which has a
+// 'kind' that is a token from lexer.h's TokenKind enum. Single-character
+// operators like '+' are represented using the character itself (so, add.kind()
+// would be '+'). Each Compound object also contains a list of subtrees and is
+// associated with a SourceRange for error reporting.
+// Memory management of trees is done using intrusive_ptr.
+
+struct Tree;
+using TreeRef = c10::intrusive_ptr<Tree>;
+using TreeList = at::SmallVector<TreeRef, 4>;
+
+struct Tree : c10::intrusive_ptr_target {
+  Tree(int kind_) : kind_(kind_) {}
+  int kind() const {
+    return kind_;
+  }
+  virtual bool isAtom() const {
+    return true;
+  }
+  virtual const SourceRange& range() const {
+    throw std::runtime_error("is an Atom");
+  }
+  virtual const std::string& stringValue() const {
+    throw std::runtime_error("stringValue can only be called on TK_STRING");
+  }
+  virtual const TreeList& trees() const {
+    static const TreeList empty_trees = {};
+    return empty_trees;
+  }
+  const TreeRef& tree(size_t i) const {
+    return trees().at(i);
+  }
+  virtual TreeRef map(const std::function<TreeRef(TreeRef)>& fn) {
+    (void)fn;
+    c10::raw::intrusive_ptr::incref(this); // we are creating a new pointer
+                                           // from a raw `this` pointer
+                                           // so we need to bump the refcount
+                                           // to account for this ownership
+    return TreeRef::reclaim(this);
+  }
+  template <typename... Args>
+  void match(int k, Args&... args) const {
+    matchD(k, "unknown", 0, args...);
+  }
+  template <typename... Args>
+  void matchD(int k, const char* filename, int lineno, Args&... args) const {
+    std::initializer_list<TreeRef*> vars = {args...};
+    matchNumSubtreesD(k, filename, lineno, vars.size(), true);
+    size_t i = 0;
+    for (TreeRef* v : vars) {
+      *v = trees()[i++];
+    }
+  }
+  void matchNumSubtrees(int k, size_t expected_subtrees) {
+    return matchNumSubtreesD(k, "unknown", 0, expected_subtrees, false);
+  }
+  void matchNumSubtreesD(
+      int k,
+      const char* filename,
+      int lineno,
+      size_t expected_subtrees,
+      bool allow_more) const {
+    if (kind() != k) {
+      std::stringstream ss;
+      ss << filename << ":" << lineno << ": expecting kind '" << kindToString(k)
+         << "' but found '" << kindToString(kind()) << "'\n";
+      range().highlight(ss);
+      throw std::runtime_error(ss.str());
+    }
+    if (trees().size() < expected_subtrees ||
+        (!allow_more && trees().size() != expected_subtrees)) {
+      std::stringstream ss;
+      ss << filename << ":" << lineno << ": expected at least "
+         << expected_subtrees << " subtrees, but found only " << trees().size()
+         << "\n";
+      range().highlight(ss);
+      throw std::runtime_error(ss.str());
+    }
+  }
+  ~Tree() override = default;
+
+ private:
+  int kind_;
+};
+
+struct String : public Tree {
+  String(std::string value) : Tree(TK_STRING), value_(std::move(value)) {}
+  const std::string& stringValue() const override {
+    return value_;
+  }
+  template <typename... Args>
+  static TreeRef create(Args&&... args) {
+    return c10::make_intrusive<String>(std::forward<Args>(args)...);
+  }
+
+ private:
+  std::string value_;
+};
+
+static SourceRange mergeRanges(SourceRange c, const TreeList& others) {
+  for (const auto& t : others) {
+    if (t->isAtom())
+      continue;
+    size_t s = std::min(c.start(), t->range().start());
+    size_t e = std::max(c.end(), t->range().end());
+    c = SourceRange(c.source(), s, e);
+  }
+  return c;
+}
+
+struct Compound : public Tree {
+  Compound(int kind, SourceRange range)
+      : Tree(kind), range_(std::move(range)) {}
+  Compound(int kind, const SourceRange& range_, TreeList&& trees_)
+      : Tree(kind),
+        range_(mergeRanges(range_, trees_)),
+        trees_(std::move(trees_)) {}
+  const TreeList& trees() const override {
+    return trees_;
+  }
+  static TreeRef create(
+      int kind,
+      const SourceRange& range_,
+      TreeList&& trees_) {
+    return c10::make_intrusive<Compound>(kind, range_, std::move(trees_));
+  }
+  bool isAtom() const override {
+    return false;
+  }
+  TreeRef map(const std::function<TreeRef(TreeRef)>& fn) override {
+    TreeList ret;
+    for (auto& t : trees()) {
+      ret.push_back(fn(t));
+    }
+    return Compound::create(kind(), range(), std::move(ret));
+  }
+
+  const SourceRange& range() const override {
+    return range_;
+  }
+
+ private:
+  SourceRange range_;
+  TreeList trees_;
+};
+
+// tree pretty printer
+struct pretty_tree {
+  pretty_tree(const TreeRef& tree, size_t col = 40) : tree(tree), col(col) {}
+  const TreeRef& tree;
+  size_t col;
+  std::unordered_map<TreeRef, std::string> flat_strings;
+  const std::string& get_flat(const TreeRef& t) {
+    auto it = flat_strings.find(t);
+    if (it != flat_strings.end())
+      return it->second;
+
+    std::stringstream out;
+    switch (t->kind()) {
+      case TK_STRING:
+        out << t->stringValue();
+        break;
+      default:
+        out << "(" << kindToString(t->kind());
+        for (const auto& e : t->trees()) {
+          out << " " << get_flat(e);
+        }
+        out << ")";
+        break;
+    }
+    auto it_ = flat_strings.emplace(t, out.str());
+    return it_.first->second;
+  }
+  void print(std::ostream& out, const TreeRef& t, int indent) {
+    const std::string& s = get_flat(t);
+    if (indent + s.size() < col || t->isAtom()) {
+      out << s;
+      return;
+    }
+    std::string k = kindToString(t->kind());
+    out << "(" << k;
+    for (const auto& e : t->trees()) {
+      out << "\n" << std::string(indent + 2, ' ');
+      print(out, e, indent + 2);
+    }
+    out << ")";
+  }
+};
+
+static inline std::ostream& operator<<(std::ostream& out, pretty_tree t_) {
+  t_.print(out, t_.tree, 0);
+  return out << std::endl;
+}
+
+static inline std::ostream& operator<<(std::ostream& out, const TreeRef& t) {
+  return out << pretty_tree(t);
+}
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/tree_views.h

@@ -0,0 +1,1275 @@
+#pragma once
+#include <c10/util/string_utils.h>
+#include <torch/csrc/jit/frontend/error_report.h>
+#include <torch/csrc/jit/frontend/strtod.h>
+#include <torch/csrc/jit/frontend/tree.h>
+
+#include <c10/util/complex.h>
+#include <functional>
+#include <iostream>
+#include <string>
+#include <utility>
+
+namespace torch {
+namespace jit {
+
+// clang-format off
+// TreeView provides a statically-typed way to traverse the tree, which should
+// be formed according to the grammar below.
+//
+// A few notes on types and their aliases:
+// - List<T> is really a Tree with kind TK_LIST and elements as subtrees
+// - Maybe<T> is really a Tree with kind TK_OPTION that has 0 or 1 subtree of type T
+// - Builtin types are: Ident (TK_IDENT), String (TK_STRING)
+//
+// Param = Param(Maybe<Expr> type, Ident name)                          TK_PARAM
+//
+// Decl  = Decl(List<Param> params, Maybe<Expr> return_type)            TK_DECL
+// Def   = Def(Ident name, Decl decl, List<Stmt> body)                  TK_DEF
+// ClassDef = ClassDef(Ident name,                                      TK_CLASS_DEF
+//                     Maybe<Expr> superclass,
+//                     List<Stmt> body)
+//
+// Stmt  = If(Expr cond, List<Stmt> true_body, List<Stmt> false_body)   TK_IF
+//       | For(List<Expr> targets, List<Expr> iters, List<Stmt> body)   TK_FOR
+//       | While(Expr cond, List<Stmt> body)                            TK_WHILE
+//       | Global(List<Ident> idents)                                   TK_GLOBAL
+//       -- NB: the only type of Expr's allowed on lhs are Var
+//          Or a tuple containing Var with an optional terminating Starred
+//       | Assign(Expr lhs, Maybe<Expr> rhs, Maybe<Expr> type)          TK_ASSIGN
+//       | AugAssign(Expr lhs, AugAssignKind aug_op, Expr rhs)          TK_AUG_ASSIGN
+//       | Return(List<Expr> values)                                    TK_RETURN
+//       | ExprStmt(List<Expr> expr)                                    TK_EXPR_STMT
+//       | Raise(Expr expr)                                             TK_RAISE
+//       | Def                                                          TK_DEF
+//       | With(List<WithItem> targets, List<Stmt> body)                TK_WITH
+//
+// Expr  = TernaryIf(Expr cond, Expr true_expr, Expr false_expr)        TK_IF_EXPR
+//       | BinOp(Expr lhs, Expr rhs)
+//       |     And                                                      TK_AND
+//       |     Or                                                       TK_OR
+//       |     Lt                                                       '<'
+//       |     Gt                                                       '>'
+//       |     Eq                                                       TK_EQ
+//       |     Le                                                       TK_LE
+//       |     Ge                                                       TK_GE
+//       |     Ne                                                       TK_NE
+//       |     Is                                                       TK_IS
+//       |     IsNot                                                    TK_ISNOT
+//       |     Add                                                      '+'
+//       |     Sub                                                      '-'
+//       |     Mul                                                      '*'
+//       |     Div                                                      '/'
+//       |     Mod                                                      '%'
+//       |     MatMult                                                  '@'
+//       |     Pow                                                      TK_POW
+//       | UnaryOp(Expr expr)
+//       |     Not                                                      TK_NOT
+//       |     USub                                                     '-'
+//       | Const(String value)                                          TK_CONST
+//       -- NB: x.name(y) is desugared into name(x, y)
+//       | Apply(Ident name, List<Expr> args, List<Attribute> kwargs)   TK_APPLY
+//       | Select(Expr value, Ident selector)                           '.'
+//       | Subscript(Expr value, List<Expr> subscript_exprs)            TK_SUBSCRIPT
+//       | SliceExpr(Maybe<Expr> start, Maybe<Expr> end)                TK_SLICE_EXPR
+//       | Var(Ident name)                                              TK_VAR
+//       | ListLiteral(List<Expr> inputs)                               TK_LIST_LITERAL
+//       | TupleLiteral(List<Expr> inputs)                              TK_TUPLE_LITERAL
+//       | Starred(Expr expr)                                           TK_STARRED
+//       | WithItem(Expr target, Maybe<Var> var)                        TK_WITH_ITEM
+// -- NB: only allowed expressions are Const or List(Const)
+//        (List as a value, not type constructor)
+// Attribute = Attribute(Ident name, Expr value)                        TK_ATTRIBUTE
+//
+// AugAssignKind =
+//            | Add()                                                   TK_PLUS_EQ
+//            | Sub()                                                   TK_MINUS_EQ
+//            | Mul()                                                   TK_TIMES_EQ
+//            | Div()                                                   TK_DIV_EQ
+//            | Mod()                                                   TK_MOD_EQ
+//
+
+// Each subclass of TreeView should provide:
+// 1. Constructor that takes a TreeRef, and checks that it's of the right type.
+// 2. Accessors that get underlying information out of the object. If they
+//    return subtrees, they should wrap them in appropriate views too.
+// 3. Static method 'create' that creates the underlying TreeRef object
+//    for every TreeRef kind that has a TreeView, the parser always uses
+//    (e.g.) Ident::create rather than Compound::Create, this means that
+//    changes to the structure of Ident are always made right here rather
+//    than both in the parser and in this code.
+// XXX: these structs should have no fields to prevent slicing when passing by value
+// clang-format on
+struct TreeView {
+  explicit TreeView(TreeRef tree) : tree_(std::move(tree)) {}
+  TreeRef tree() const {
+    return tree_;
+  }
+  const SourceRange& range() const {
+    return tree_->range();
+  }
+  operator TreeRef() const {
+    return tree_;
+  }
+  const TreeRef& get() const {
+    return tree_;
+  }
+  int kind() const {
+    return tree_->kind();
+  }
+  void dump() const {
+    std::cout << tree_;
+  }
+
+ protected:
+  const TreeRef& subtree(size_t i) const {
+    return tree_->trees().at(i);
+  }
+  // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+  TreeRef tree_;
+};
+
+template <typename T>
+struct ListIterator {
+  ListIterator(TreeList::const_iterator it) : it(it) {}
+  bool operator!=(const ListIterator& rhs) const {
+    return it != rhs.it;
+  }
+  bool operator==(const ListIterator& rhs) const {
+    return it == rhs.it;
+  }
+  T operator*() const {
+    return T(*it);
+  }
+  ListIterator& operator+=(std::ptrdiff_t n) {
+    it += n;
+    return *this;
+  }
+  ListIterator& operator++() {
+    ++it;
+    return *this;
+  }
+  ListIterator& operator--() {
+    --it;
+    return *this;
+  }
+
+ private:
+  TreeList::const_iterator it;
+};
+
+template <typename T>
+struct List : public TreeView {
+  using iterator = ListIterator<T>;
+  using const_iterator = ListIterator<T>;
+
+  List(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_LIST);
+    // Iterate over list to temporarily instantiate Ts that will check the type
+    for (const T& elem : *this) {
+      (void)elem; // silence unused warning
+    }
+  }
+  iterator begin() const {
+    return iterator(tree_->trees().begin());
+  }
+  iterator end() const {
+    return iterator(tree_->trees().end());
+  }
+  bool empty() const {
+    return tree_->trees().begin() == tree_->trees().end();
+  }
+  T operator[](size_t i) const {
+    return T(subtree(i));
+  }
+  TreeRef map(const std::function<TreeRef(const T&)>& fn) {
+    return tree_->map([&](TreeRef v) { return fn(T(v)); });
+  }
+  static List create(const SourceRange& range, const std::vector<T>& subtrees) {
+    TreeList type_erased_sub{subtrees.begin(), subtrees.end()};
+    return List(Compound::create(TK_LIST, range, std::move(type_erased_sub)));
+  }
+  static List unsafeCreate(const SourceRange& range, TreeList&& subtrees) {
+    return List(Compound::create(TK_LIST, range, std::move(subtrees)));
+  }
+  size_t size() const {
+    return tree_->trees().size();
+  }
+};
+
+template <typename T>
+struct Maybe : public TreeView {
+  explicit Maybe(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_OPTION);
+    if (tree_->trees().size() > 1)
+      throw ErrorReport(tree) << "Maybe trees can have at most one subtree";
+  }
+  /* implicit */ Maybe(const T& tree) : TreeView(tree) {}
+  bool present() const {
+    return tree_->trees().size() > 0;
+  }
+  T get() const {
+    return T(tree_->trees().at(0));
+  }
+  TreeRef map(const std::function<TreeRef(const T&)>& fn) {
+    return tree_->map([&](TreeRef v) { return fn(T(v)); });
+  }
+  static Maybe<T> create(const SourceRange& range) {
+    return Maybe<T>(Compound::create(TK_OPTION, range, {}));
+  }
+  static Maybe<T> create(const SourceRange& range, const T& value) {
+    return Maybe<T>(Compound::create(TK_OPTION, range, {value}));
+  }
+};
+
+struct Ident : public TreeView {
+  explicit Ident(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_IDENT);
+  }
+  const std::string& name() const {
+    return subtree(0)->stringValue();
+  }
+  static Ident create(const SourceRange& range, std::string name) {
+    return Ident(
+        Compound::create(TK_IDENT, range, {String::create(std::move(name))}));
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Base types (production LHS)
+////////////////////////////////////////////////////////////////////////////////
+
+struct Stmt : public TreeView {
+  explicit Stmt(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case TK_IF:
+      case TK_FOR:
+      case TK_WHILE:
+      case TK_GLOBAL:
+      case TK_ASSIGN:
+      case TK_AUG_ASSIGN:
+      case TK_RETURN:
+      case TK_EXPR_STMT:
+      case TK_RAISE:
+      case TK_ASSERT:
+      case TK_PASS:
+      case TK_BREAK:
+      case TK_DELETE:
+      case TK_CONTINUE:
+      case TK_DEF:
+      case TK_WITH:
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid Stmt";
+    }
+  }
+};
+
+struct Expr : public TreeView {
+  explicit Expr(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case TK_IF_EXPR:
+      case TK_AND:
+      case TK_OR:
+      case '<':
+      case '>':
+      case TK_IS:
+      case TK_ISNOT:
+      case TK_EQ:
+      case TK_LE:
+      case TK_GE:
+      case TK_NE:
+      case '+':
+      case '-':
+      case TK_UNARY_MINUS:
+      case '~':
+      case '*':
+      case TK_STARRED:
+      case '/':
+      case '%':
+      case TK_NOT:
+      case TK_CONST:
+      case TK_STRINGLITERAL:
+      case TK_TRUE:
+      case TK_FALSE:
+      case TK_NONE:
+      case TK_NONE_TYPE:
+      case TK_CAST:
+      case TK_APPLY:
+      case '.':
+      case TK_SUBSCRIPT:
+      case TK_SLICE_EXPR:
+      case TK_VAR:
+      case TK_LIST_LITERAL:
+      case TK_TUPLE_LITERAL:
+      case TK_DICT_LITERAL:
+      case '@':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+      case TK_FLOOR_DIV:
+      case '&':
+      case '^':
+      case '|':
+      case TK_LIST_COMP:
+      case TK_DICT_COMP:
+      case TK_DOTS:
+      case TK_IN:
+      case TK_WITH_ITEM:
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid Expr";
+    }
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Helper nodes (mostly for function arguments)
+////////////////////////////////////////////////////////////////////////////////
+
+struct Attribute : public TreeView {
+  explicit Attribute(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_ATTRIBUTE);
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Expr value() const {
+    return Expr(subtree(1));
+  }
+  static Attribute create(
+      const SourceRange& range,
+      const Ident& name,
+      const TreeRef& value) {
+    return Attribute(Compound::create(TK_ATTRIBUTE, range, {name, value}));
+  }
+};
+
+struct Param : public TreeView {
+  explicit Param(const TreeRef& tree) : TreeView(tree) {
+    tree_->match(TK_PARAM);
+  }
+  static Param create(
+      const SourceRange& range,
+      const Ident& ident,
+      const Maybe<Expr>& type,
+      const Maybe<Expr>& def,
+      bool kwarg_only) {
+    TreeRef kwarg_only_tree =
+        Compound::create(kwarg_only ? TK_TRUE : TK_FALSE, range, {});
+    return Param(Compound::create(
+        TK_PARAM, range, {ident, type, def, std::move(kwarg_only_tree)}));
+  }
+  Ident ident() const {
+    return Ident(subtree(0));
+  }
+  Maybe<Expr> type() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  Maybe<Expr> defaultValue() const {
+    return Maybe<Expr>(subtree(2));
+  }
+  bool kwarg_only() const {
+    return TK_TRUE == subtree(3)->kind();
+  }
+  Param withType(const Maybe<Expr>& typ) const {
+    return Param::create(range(), ident(), typ, defaultValue(), kwarg_only());
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Top level definitions
+////////////////////////////////////////////////////////////////////////////////
+
+struct Decl : public TreeView {
+  explicit Decl(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_DECL);
+  }
+  List<Param> params() const {
+    return List<Param>(subtree(0));
+  }
+  Maybe<Expr> return_type() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  static Decl create(
+      const SourceRange& range,
+      const List<Param>& params,
+      const Maybe<Expr>& return_type) {
+    return Decl(Compound::create(TK_DECL, range, {params, return_type}));
+  }
+};
+
+struct Def : public TreeView {
+  explicit Def(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_DEF);
+  }
+  Def withName(std::string new_name) const {
+    auto new_ident = Ident::create(name().range(), std::move(new_name));
+    return create(range(), new_ident, decl(), statements());
+  }
+  Def withDecl(const Decl& decl) const {
+    return create(range(), name(), decl, statements());
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Decl decl() const {
+    return Decl(subtree(1));
+  }
+  List<Stmt> statements() const {
+    return List<Stmt>(subtree(2));
+  }
+  static Def create(
+      const SourceRange& range,
+      const Ident& name,
+      const Decl& decl,
+      const List<Stmt>& stmts) {
+    return Def(Compound::create(TK_DEF, range, {name, decl, stmts}));
+  }
+};
+
+// Property represents a named attribute combined with a getter and setter
+// method to access and mutate that attribute.
+struct Property : public TreeView {
+  explicit Property(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_PROP);
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Def getter() const {
+    return Def(subtree(1));
+  }
+  Maybe<Def> setter() const {
+    return Maybe<Def>(subtree(2));
+  }
+  static Property create(
+      const SourceRange& range,
+      const Ident& name,
+      const Def& getter,
+      const Maybe<Def>& setter) {
+    return Property(Compound::create(TK_PROP, range, {name, getter, setter}));
+  }
+};
+
+struct Assign;
+
+struct ClassDef : public TreeView {
+  explicit ClassDef(const TreeRef& tree) : TreeView(tree) {
+    tree->match(TK_CLASS_DEF);
+  }
+  explicit ClassDef(TreeRef&& tree) : TreeView(std::move(tree)) {
+    tree_->match(TK_CLASS_DEF);
+  }
+  ClassDef withName(std::string new_name) const {
+    auto new_ident = Ident::create(name().range(), std::move(new_name));
+    return create(range(), new_ident, superclass(), body());
+  }
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  Maybe<Expr> superclass() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(2));
+  }
+  Maybe<List<Property>> properties() const {
+    return Maybe<List<Property>>(subtree(3));
+  }
+  Maybe<List<Assign>> assigns() const {
+    return Maybe<List<Assign>>(subtree(4));
+  }
+  static ClassDef create(
+      const SourceRange& range,
+      const Ident& name,
+      const Maybe<Expr>& superclass,
+      const List<Stmt>& body) {
+    return ClassDef(Compound::create(
+        TK_CLASS_DEF,
+        range,
+        {name,
+         superclass,
+         body,
+         Maybe<List<Property>>::create(range),
+         Maybe<List<Assign>>::create(range)}));
+  }
+  static ClassDef create(
+      const SourceRange& range,
+      const Ident& name,
+      const Maybe<Expr>& superclass,
+      const List<Stmt>& body,
+      const List<Property>& properties,
+      const List<Assign>& assigns);
+};
+
+TORCH_API std::vector<std::string> getUnresolvedClassAttributes(
+    const ClassDef& def);
+
+////////////////////////////////////////////////////////////////////////////////
+// Statements
+////////////////////////////////////////////////////////////////////////////////
+
+struct If : public Stmt {
+  explicit If(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_IF);
+  }
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  List<Stmt> trueBranch() const {
+    return List<Stmt>(subtree(1));
+  }
+  List<Stmt> falseBranch() const {
+    return List<Stmt>(subtree(2));
+  }
+  If withNewBranches(
+      const List<Stmt>& true_branch,
+      const List<Stmt>& false_branch) const {
+    return create(range(), cond(), true_branch, false_branch);
+  }
+  static If create(
+      const SourceRange& range,
+      const Expr& cond,
+      const List<Stmt>& true_branch,
+      const List<Stmt>& false_branch) {
+    return If(
+        Compound::create(TK_IF, range, {cond, true_branch, false_branch}));
+  }
+};
+
+struct While : public Stmt {
+  explicit While(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_WHILE);
+  }
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(1));
+  }
+  static While create(
+      const SourceRange& range,
+      const Expr& cond,
+      const List<Stmt>& body) {
+    return While(Compound::create(TK_WHILE, range, {cond, body}));
+  }
+};
+
+struct For : public Stmt {
+  explicit For(const TreeRef& tree) : Stmt(tree) {
+    tree->match(TK_FOR);
+  }
+  List<Expr> targets() const {
+    return List<Expr>(subtree(0));
+  }
+  List<Expr> itrs() const {
+    return List<Expr>(subtree(1));
+  }
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(2));
+  }
+  static For create(
+      const SourceRange& range,
+      const List<Expr>& targets,
+      const List<Expr>& itrs,
+      const List<Stmt>& body) {
+    return For(Compound::create(TK_FOR, range, {targets, itrs, body}));
+  }
+};
+
+// TODO: supports only single comprehension for now
+struct ListComp : public Expr {
+  explicit ListComp(const TreeRef& tree) : Expr(tree) {
+    tree->match(TK_LIST_COMP);
+  }
+  Expr elt() const {
+    return Expr(subtree(0));
+  }
+  Expr target() const {
+    return Expr(subtree(1));
+  }
+  Expr iter() const {
+    return Expr(subtree(2));
+  }
+  // TODO: no ifs for now
+  static ListComp create(
+      const SourceRange& range,
+      const Expr& elt,
+      const Expr& target,
+      const Expr& iter) {
+    return ListComp(Compound::create(TK_LIST_COMP, range, {elt, target, iter}));
+  }
+};
+
+// TODO: supports only single comprehension for now
+struct DictComp : public Expr {
+  explicit DictComp(const TreeRef& tree) : Expr(tree) {
+    tree->match(TK_DICT_COMP);
+  }
+  Expr key() const {
+    return Expr(subtree(0));
+  }
+  Expr value() const {
+    return Expr(subtree(1));
+  }
+  Expr target() const {
+    return Expr(subtree(2));
+  }
+  Expr iter() const {
+    return Expr(subtree(3));
+  }
+  // TODO: no ifs for now
+  static DictComp create(
+      const SourceRange& range,
+      const Expr& key,
+      const Expr& value,
+      const Expr& target,
+      const Expr& iter) {
+    return DictComp(
+        Compound::create(TK_DICT_COMP, range, {key, value, target, iter}));
+  }
+};
+
+struct Global : public Stmt {
+  explicit Global(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_GLOBAL);
+  }
+  List<Ident> names() {
+    return List<Ident>(subtree(0));
+  }
+  static Global create(const SourceRange& range, const List<Ident>& names) {
+    return Global(Compound::create(TK_GLOBAL, range, {names}));
+  }
+};
+
+struct AugAssignKind : public TreeView {
+  explicit AugAssignKind(const TreeRef& tree) : TreeView(tree) {
+    switch (tree->kind()) {
+      case '+':
+      case '-':
+      case '*':
+      case '/':
+      case '%':
+      case '|':
+      case '&':
+      case '^':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+        return;
+      default:
+        throw ErrorReport(tree) << "is not a valid AugAssignKind";
+    }
+  }
+};
+
+// Augmented assignment, like "foo += bar"
+struct AugAssign : public Stmt {
+  explicit AugAssign(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_AUG_ASSIGN);
+  }
+  static AugAssign create(
+      const SourceRange& range,
+      const Expr& lhs,
+      const AugAssignKind& aug_op,
+      const Expr& rhs) {
+    return AugAssign(
+        Compound::create(TK_AUG_ASSIGN, range, {lhs, aug_op, rhs}));
+  }
+  Expr lhs() const {
+    return Expr(subtree(0));
+  }
+  int aug_op() const {
+    return subtree(1)->kind();
+  }
+  Expr rhs() const {
+    return Expr(subtree(2));
+  }
+};
+
+struct Assign : public Stmt {
+  explicit Assign(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_ASSIGN);
+  }
+  static Assign create(
+      const SourceRange& range,
+      const List<Expr>& lhs,
+      const Maybe<Expr>& rhs,
+      const Maybe<Expr>& type) {
+    return Assign(Compound::create(TK_ASSIGN, range, {lhs, rhs, type}));
+  }
+
+  List<Expr> lhs_list() const {
+    return List<Expr>(subtree(0));
+  }
+
+  Expr lhs() const {
+    const auto& li = lhs_list();
+    TORCH_INTERNAL_ASSERT(li.size() == 1);
+    return *li.begin();
+  }
+
+  Maybe<Expr> rhs() const {
+    return Maybe<Expr>(subtree(1));
+  }
+
+  Maybe<Expr> type() const {
+    return Maybe<Expr>(subtree(2));
+  }
+};
+
+struct Return : public Stmt {
+  explicit Return(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_RETURN);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Return create(const SourceRange& range, const Expr& value) {
+    return Return(Compound::create(TK_RETURN, range, {value}));
+  }
+};
+
+struct Raise : public Stmt {
+  explicit Raise(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_RAISE);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Raise create(const SourceRange& range, const Expr& expr) {
+    return Raise(Compound::create(TK_RAISE, range, {expr}));
+  }
+};
+
+struct Assert : public Stmt {
+  explicit Assert(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_ASSERT);
+  }
+  Expr test() const {
+    return Expr(subtree(0));
+  }
+  Maybe<Expr> msg() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  static Assert create(
+      const SourceRange& range,
+      const Expr& test,
+      const Maybe<Expr>& msg) {
+    return Assert(Compound::create(TK_ASSERT, range, {test, msg}));
+  }
+};
+
+struct Pass : public Stmt {
+  explicit Pass(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_PASS);
+  }
+  static Pass create(const SourceRange& range) {
+    return Pass(Compound::create(TK_PASS, range, {}));
+  }
+};
+
+struct Dots : public Expr {
+  explicit Dots(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_DOTS);
+  }
+  static Dots create(const SourceRange& range) {
+    return Dots(Compound::create(TK_DOTS, range, {}));
+  }
+};
+
+struct Break : public Stmt {
+  explicit Break(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_BREAK);
+  }
+  static Break create(const SourceRange& range) {
+    return Break(Compound::create(TK_BREAK, range, {}));
+  }
+};
+
+struct Continue : public Stmt {
+  explicit Continue(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_CONTINUE);
+  }
+  static Continue create(const SourceRange& range) {
+    return Continue(Compound::create(TK_CONTINUE, range, {}));
+  }
+};
+
+struct ExprStmt : public Stmt {
+  explicit ExprStmt(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_EXPR_STMT);
+  }
+  Expr expr() {
+    return Expr(subtree(0));
+  }
+  static ExprStmt create(const SourceRange& range, const Expr& list) {
+    return ExprStmt(Compound::create(TK_EXPR_STMT, range, {list}));
+  }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Expressions
+////////////////////////////////////////////////////////////////////////////////
+
+struct BinOp : public Expr {
+  explicit BinOp(const TreeRef& tree) : Expr(tree) {
+    switch (tree->kind()) {
+      case TK_AND:
+      case TK_OR:
+      case '<':
+      case '>':
+      case TK_IS:
+      case TK_ISNOT:
+      case TK_EQ:
+      case TK_LE:
+      case TK_GE:
+      case TK_NE:
+      case '+':
+      case '*':
+      case '/':
+      case '-':
+      case '@':
+      case TK_POW:
+      case TK_LSHIFT:
+      case TK_RSHIFT:
+      case '%':
+      case '&':
+      case '^':
+      case '|':
+      case TK_FLOOR_DIV:
+      case TK_IN:
+        if (tree->trees().size() != 2)
+          throw ErrorReport(tree)
+              << "BinOp expected 2 subtrees, found " << tree->trees().size();
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid BinOp";
+    }
+  }
+  Expr lhs() const {
+    return Expr(subtree(0));
+  }
+  Expr rhs() const {
+    return Expr(subtree(1));
+  }
+  static BinOp create(
+      const SourceRange& range,
+      int kind,
+      const Expr& lhs,
+      const Expr& rhs) {
+    return BinOp(Compound::create(kind, range, {lhs, rhs}));
+  }
+};
+
+struct UnaryOp : public Expr {
+  explicit UnaryOp(const TreeRef& tree) : Expr(tree) {
+    switch (tree->kind()) {
+      case TK_UNARY_MINUS:
+      case '~':
+      case TK_NOT:
+        if (tree->trees().size() != 1)
+          throw ErrorReport(tree)
+              << "UnaryOp expected 1 subtree, found " << tree->trees().size();
+        return;
+      default:
+        throw ErrorReport(tree)
+            << kindToString(tree->kind()) << " is not a valid UnaryOp";
+    }
+  }
+  static UnaryOp create(const SourceRange& range, int kind, const Expr& expr) {
+    return UnaryOp(Compound::create(kind, range, {expr}));
+  }
+};
+
+struct Const : public Expr {
+  explicit Const(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_CONST, 1);
+  }
+  bool isFloatingPoint() const {
+    if (isComplex())
+      return false;
+
+    bool is_inf = subtree(0)->stringValue() == "inf";
+    return is_inf ||
+        subtree(0)->stringValue().find_first_of(".eE") != std::string::npos;
+  }
+  bool isIntegral() const {
+    return !isFloatingPoint() && !isComplex();
+  }
+  bool isComplex() const {
+    return subtree(0)->stringValue().find_first_of('j') != std::string::npos;
+  }
+  int64_t asIntegral() const {
+    try {
+      // NOLINTNEXTLINE(modernize-use-nullptr)
+      return std::stoll(subtree(0)->stringValue(), /*__idx=*/0, /*base=*/0);
+    } catch (const std::out_of_range&) {
+      throw ErrorReport(range()) << "Integral constant out of range "
+                                    "(must fit in a signed 64 bit integer)";
+    }
+  }
+  double asFloatingPoint() const {
+    // We can't pass in nullptr as the dummy pointer gets dereferenced for
+    // Android version of strtod_c().
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    char* dummy;
+    return torch::jit::strtod_c(subtree(0)->stringValue().c_str(), &dummy);
+  }
+  c10::complex<double> asComplex() const {
+    // NOLINTNEXTLINE(cppcoreguidelines-init-variables)
+    char* dummy;
+    auto str = subtree(0)->stringValue();
+    // Complex numbers (a+bj, where a is non-zero) are parsed as an addition
+    // between float/int a and a complex number "bj". When a is 0, a complex
+    // number bj is created as above. So, while parsing the string, we don't
+    // have to worry about the real component of the complex number.
+    auto imag =
+        torch::jit::strtod_c(str.substr(0, str.size() - 1).c_str(), &dummy);
+    return c10::complex<double>(0, imag);
+  }
+  const std::string& text() const {
+    return subtree(0)->stringValue();
+  }
+  static Const create(const SourceRange& range, const std::string& value) {
+    return Const(Compound::create(TK_CONST, range, {String::create(value)}));
+  }
+};
+
+struct StringLiteral : public Expr {
+  explicit StringLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_STRINGLITERAL, 1);
+  }
+  const std::string& text() const {
+    return subtree(0)->stringValue();
+  }
+  static StringLiteral create(
+      const SourceRange& range,
+      const std::string& value) {
+    return StringLiteral(
+        Compound::create(TK_STRINGLITERAL, range, {String::create(value)}));
+  }
+};
+
+struct Apply : public Expr {
+  explicit Apply(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_APPLY);
+  }
+  Expr callee() const {
+    return Expr(subtree(0));
+  }
+  List<Expr> inputs() const {
+    return List<Expr>(subtree(1));
+  }
+  List<Attribute> attributes() const {
+    return List<Attribute>(subtree(2));
+  }
+  static Apply create(
+      const SourceRange& range,
+      const Expr& callee,
+      const List<Expr>& inputs,
+      const List<Attribute>& attributes) {
+    return Apply(
+        Compound::create(TK_APPLY, range, {callee, inputs, attributes}));
+  }
+};
+
+struct Select : public Expr {
+  explicit Select(const TreeRef& tree) : Expr(tree) {
+    tree_->match('.');
+  }
+  Expr value() const {
+    return Expr(subtree(0));
+  }
+  Ident selector() const {
+    return Ident(subtree(1));
+  }
+  static Select create(
+      const SourceRange& range,
+      const Expr& value,
+      const Ident& selector) {
+    return Select(Compound::create('.', range, {value, selector}));
+  }
+};
+
+struct SliceExpr : public Expr {
+  explicit SliceExpr(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_SLICE_EXPR);
+  }
+  Maybe<Expr> start() const {
+    return Maybe<Expr>(subtree(0));
+  }
+  Maybe<Expr> end() const {
+    return Maybe<Expr>(subtree(1));
+  }
+  Maybe<Expr> step() const {
+    return Maybe<Expr>(subtree(2));
+  }
+  Expr startOr(int64_t alternative) const {
+    const auto startOption = start();
+    return startOption.present() ? startOption.get() : createInt(alternative);
+  }
+  Expr endOr(int64_t alternative) const {
+    const auto endOption = end();
+    return endOption.present() ? endOption.get() : createInt(alternative);
+  }
+  Expr stepOr(int64_t alternative) const {
+    const auto stepOption = step();
+    return stepOption.present() ? stepOption.get() : createInt(alternative);
+  }
+  static SliceExpr create(
+      const SourceRange& range,
+      const Maybe<Expr>& start,
+      const Maybe<Expr>& end,
+      const Maybe<Expr>& step) {
+    return SliceExpr(
+        Compound::create(TK_SLICE_EXPR, range, {start, end, step}));
+  }
+
+ private:
+  Expr createInt(int64_t value) const {
+    return Expr(Const::create(range(), c10::to_string(value)));
+  }
+};
+
+struct Subscript : public Expr {
+  explicit Subscript(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_SUBSCRIPT);
+  }
+  Expr value() const {
+    return Expr(subtree(0));
+  }
+  List<Expr> subscript_exprs() const {
+    return List<Expr>(subtree(1));
+  }
+  static Subscript create(
+      const SourceRange& range,
+      const Expr& value,
+      const List<Expr>& subscript_exprs) {
+    auto whole_range = SourceRange(
+        range.source(), range.start(), subscript_exprs.range().end() + 1);
+    return Subscript(
+        Compound::create(TK_SUBSCRIPT, whole_range, {value, subscript_exprs}));
+  }
+};
+
+struct Var : public Expr {
+  explicit Var(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_VAR);
+  };
+  Ident name() const {
+    return Ident(subtree(0));
+  }
+  static Var create(const SourceRange& range, const Ident& name) {
+    return Var(Compound::create(TK_VAR, range, {name}));
+  }
+};
+
+// WithItem represents an item using with a WithStmt.
+struct WithItem : public Expr {
+  explicit WithItem(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_WITH_ITEM);
+  }
+
+  Expr target() const {
+    return Expr(subtree(0));
+  }
+
+  Maybe<Var> var() const {
+    return Maybe<Var>(subtree(1));
+  }
+
+  static WithItem create(
+      const SourceRange& range,
+      const Expr& target,
+      const Maybe<Var>& var) {
+    return WithItem(Compound::create(TK_WITH_ITEM, range, {target, var}));
+  }
+};
+
+// With represents a with statement consisting of a list of with items and a
+// body of statements.
+struct With : public Stmt {
+  explicit With(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_WITH);
+  }
+
+  List<WithItem> targets() const {
+    return List<WithItem>(subtree(0));
+  }
+
+  List<Stmt> body() const {
+    return List<Stmt>(subtree(1));
+  }
+
+  static With create(
+      const SourceRange& range,
+      const List<WithItem>& targets,
+      const List<Stmt>& body) {
+    return With(Compound::create(TK_WITH, range, {targets, body}));
+  }
+};
+
+struct TernaryIf : public Expr {
+  explicit TernaryIf(const TreeRef& tree) : Expr(tree) {
+    tree_->matchNumSubtrees(TK_IF_EXPR, 3);
+  };
+  Expr cond() const {
+    return Expr(subtree(0));
+  }
+  Expr true_expr() const {
+    return Expr(subtree(1));
+  }
+  Expr false_expr() const {
+    return Expr(subtree(2));
+  }
+  static TernaryIf create(
+      const SourceRange& range,
+      const Expr& cond,
+      const Expr& true_expr,
+      const Expr& false_expr) {
+    return TernaryIf(
+        Compound::create(TK_IF_EXPR, range, {cond, true_expr, false_expr}));
+  };
+};
+
+struct ListLiteral : public Expr {
+  explicit ListLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_LIST_LITERAL);
+  }
+  List<Expr> inputs() const {
+    return subtree(0);
+  }
+  static ListLiteral create(
+      const SourceRange& range,
+      const List<Expr>& inputs) {
+    return ListLiteral(Compound::create(TK_LIST_LITERAL, range, {inputs}));
+  }
+};
+
+struct TupleLiteral : public Expr {
+  explicit TupleLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_TUPLE_LITERAL);
+  }
+  List<Expr> inputs() const {
+    return subtree(0);
+  }
+  static TupleLiteral create(
+      const SourceRange& range,
+      const List<Expr>& inputs) {
+    return TupleLiteral(Compound::create(TK_TUPLE_LITERAL, range, {inputs}));
+  }
+};
+
+struct DictLiteral : public Expr {
+  explicit DictLiteral(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_DICT_LITERAL);
+  }
+  List<Expr> key_inputs() const {
+    return subtree(0);
+  }
+  List<Expr> value_inputs() const {
+    return subtree(1);
+  }
+  static DictLiteral create(
+      const SourceRange& range,
+      const List<Expr>& keys,
+      const List<Expr>& values) {
+    return DictLiteral(
+        Compound::create(TK_DICT_LITERAL, range, {keys, values}));
+  }
+};
+
+struct Starred : public Expr {
+  explicit Starred(const TreeRef& tree) : Expr(tree) {
+    tree_->match(TK_STARRED);
+  }
+  Expr expr() const {
+    return Expr(subtree(0));
+  }
+  static Starred create(const SourceRange& range, const Expr& expr) {
+    return Starred(Compound::create(TK_STARRED, range, {expr}));
+  }
+};
+
+struct Delete : public Stmt {
+  explicit Delete(const TreeRef& tree) : Stmt(tree) {
+    tree_->match(TK_DELETE);
+  }
+  List<Expr> targets() const {
+    return subtree(0);
+  }
+  static Delete create(const SourceRange& range, const List<Expr>& targets) {
+    return Delete(Compound::create(TK_DELETE, range, {targets}));
+  }
+};
+
+/*
+ * NOTE: transforming PEP 604 union into equivalent union type
+ *
+ * NOTE: Union[int, float] parses into:
+ * <EXPR> expr:(subscript
+ *  (variable (ident Union))
+ *  (list
+ *    (variable (ident int))
+ *    (variable (ident float))))
+ * <KIND> subscript
+ *
+ * NOTE: (int | float) parses into:
+ * <EXPR> expr:(|
+ *  (variable (ident int))
+ *  (variable (ident float)))
+ * <KIND> |
+ */
+
+inline void _flatten_pep604_union(
+    const torch::jit::Expr& node,
+    std::vector<torch::jit::Expr>* result) {
+  // flatten possibly nested union expressions like (int | (float | str))
+  // into a flat list of expressions like [int, float, str]
+  if (node.kind() == '|') {
+    auto as_binop = torch::jit::BinOp(node);
+    _flatten_pep604_union(as_binop.lhs(), result);
+    _flatten_pep604_union(as_binop.rhs(), result);
+  } else {
+    result->push_back(node);
+  }
+}
+
+inline std::vector<Expr> get_pep604_union_members(const Expr& node) {
+  std::vector<Expr> result;
+  _flatten_pep604_union(node, &result);
+  return result;
+}
+
+// Flattens a PEP 604 union into a classical union.
+// For example, ((x | y) | z) is transformed into Union[x, y, z].
+inline Expr pep604union_to_union(const Expr& expr) {
+  // noop if not a pep604 union
+  if (expr.kind() != '|')
+    return expr;
+
+  // In order to support unions with more than 2 operands ((x|y)|z), we need to
+  // recursively flatten the tree of | expressions.
+  auto members = get_pep604_union_members(expr);
+  auto synthesised_union = Subscript::create(
+      expr.range(),
+      Var::create(expr.range(), Ident::create(expr.range(), "Union")),
+      List<Expr>::create(expr.range(), members));
+  return std::move(synthesised_union);
+}
+
+} // namespace jit
+} // namespace torch
+
+namespace std {
+
+template <typename T>
+struct iterator_traits<torch::jit::ListIterator<T>>
+    : std::iterator_traits<torch::jit::TreeList::const_iterator> {};
+
+} // namespace std

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/frontend/versioned_symbols.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <caffe2/serialize/versions.h>
+#include <torch/csrc/Export.h>
+#include <torch/csrc/jit/api/module.h>
+
+#include <cstdint>
+
+namespace torch {
+namespace jit {
+// Maps the given symbol into an implementation of its behavior at the
+// given version.
+// See note [Versioned Symbols]
+TORCH_API Symbol
+get_symbol_for_version(const Symbol name, const uint64_t version);
+
+// Maps the given kind to the minimum version that supports it.
+// See note [Dynamic Versions and torch.jit.save vs. torch.save]
+TORCH_API uint64_t get_min_version_for_kind(const NodeKind& kind);
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/code.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include <vector>
+
+#include <ATen/core/ivalue.h>
+#include <ATen/core/operator_name.h>
+#include <torch/csrc/jit/runtime/instruction.h>
+
+namespace torch {
+namespace jit {
+namespace mobile {
+
+using Stack = std::vector<c10::IValue>;
+using DebugHandle = int64_t;
+
+class Function;
+
+// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+struct Code {
+  std::vector<Instruction> instructions_;
+  std::vector<DebugHandle> debug_handles_;
+  std::vector<c10::OperatorName> op_names_;
+  std::vector<int> operator_input_sizes_;
+  std::vector<std::function<void(Stack&)>> operators_;
+  std::vector<c10::IValue> constants_;
+  std::vector<c10::TypePtr> types_;
+  // TODO After we actually export CALL instructions we can remove this.
+  // We may need a two-stage importing scheme, where we firstly construct all
+  // function objects, and then append referenced function pointers. This could
+  // be done in parseMethods().
+  std::vector<mobile::Function*> functions_;
+  size_t register_size_ = 0; // Aggregated output size.
+  // initialized means operators_ array is filled with operators
+  bool initialized = false;
+};
+
+} // namespace mobile
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/debug_info.h

@@ -0,0 +1,57 @@
+#pragma once
+#include <c10/util/flat_hash_map.h>
+#include <caffe2/serialize/inline_container.h>
+#include <torch/csrc/jit/api/compilation_unit.h>
+#include <torch/csrc/jit/ir/scope.h>
+#include <torch/csrc/jit/serialization/source_range_serialization.h>
+
+namespace torch {
+namespace jit {
+/*
+ * MobileDebugTable:
+ * Deserializes debug_pkl and callstack_map records from PT model's zip archive
+ * and stores them in a map of debug handles to DebugInfoPair. Debug handles are
+ * unique per model and runtime, be in lite interpreter or delegate, an
+ * exception of BackendRuntimeException should raised using debug handles.
+ * getSourceDebugString method is responsible for translating debug
+ * handles to correspond debug information.
+ * This debug informatin includes stack trace of model level source code and
+ * module hierarchy where the exception occurred.
+ */
+class MobileDebugTable {
+ public:
+  MobileDebugTable() = default;
+  MobileDebugTable(
+      std::unique_ptr<caffe2::serialize::PyTorchStreamReader>& reader,
+      const std::shared_ptr<CompilationUnit>& cu);
+
+  template <typename It>
+  MobileDebugTable(It begin, It end) : callstack_ptr_map_(begin, end) {}
+
+  std::string getSourceDebugString(
+      const int64_t debug_handle,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getSourceDebugString(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getModuleHierarchyInfo(
+      const int64_t debug_handle,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  std::string getModuleHierarchyInfo(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+
+  const ska::flat_hash_map<int64_t, DebugInfoTuple>& getCallStackPtrMap()
+      const {
+    return callstack_ptr_map_;
+  }
+
+ private:
+  std::pair<std::string, std::string> getSourceDebugModuleHierarchyInfo(
+      const std::vector<int64_t>& debug_handles,
+      const std::string& top_module_type_name = "ModuleTypeUnknown") const;
+  ska::flat_hash_map<int64_t, DebugInfoTuple> callstack_ptr_map_;
+};
+
+} // namespace jit
+} // namespace torch

videollama2/lib/python3.10/site-packages/torch/include/torch/csrc/jit/mobile/file_format.h

@@ -0,0 +1,196 @@
+#pragma once
+
+#include <array>
+#include <cerrno>
+#include <cstddef>
+#include <cstring>
+#include <fstream>
+#include <istream>
+#include <memory>
+
+#include <c10/core/CPUAllocator.h>
+#include <c10/core/impl/alloc_cpu.h>
+#include <caffe2/serialize/read_adapter_interface.h>
+
+#if defined(HAVE_MMAP)
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+/**
+ * @file
+ *
+ * Helpers for identifying file formats when reading serialized data.
+ *
+ * Note that these functions are declared inline because they will typically
+ * only be called from one or two locations per binary.
+ */
+
+namespace torch {
+namespace jit {
+
+/**
+ * The format of a file or data stream.
+ */
+enum class FileFormat {
+  UnknownFileFormat = 0,
+  FlatbufferFileFormat,
+  ZipFileFormat,
+};
+
+/// The size of the buffer to pass to #getFileFormat(), in bytes.
+constexpr size_t kFileFormatHeaderSize = 8;
+constexpr size_t kMaxAlignment = 16;
+
+/**
+ * Returns the likely file format based on the magic header bytes in @p header,
+ * which should contain the first bytes of a file or data stream.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(const char* data) {
+  // The size of magic strings to look for in the buffer.
+  static constexpr size_t kMagicSize = 4;
+
+  // Bytes 4..7 of a Flatbuffer-encoded file produced by
+  // `flatbuffer_serializer.h`. (The first four bytes contain an offset to the
+  // actual Flatbuffer data.)
+  static constexpr std::array<char, kMagicSize> kFlatbufferMagicString = {
+      'P', 'T', 'M', 'F'};
+  static constexpr size_t kFlatbufferMagicOffset = 4;
+
+  // The first four bytes of a ZIP file.
+  static constexpr std::array<char, kMagicSize> kZipMagicString = {
+      'P', 'K', '\x03', '\x04'};
+
+  // Note that we check for Flatbuffer magic first. Since the first four bytes
+  // of flatbuffer data contain an offset to the root struct, it's theoretically
+  // possible to construct a file whose offset looks like the ZIP magic. On the
+  // other hand, bytes 4-7 of ZIP files are constrained to a small set of values
+  // that do not typically cross into the printable ASCII range, so a ZIP file
+  // should never have a header that looks like a Flatbuffer file.
+  if (std::memcmp(
+          data + kFlatbufferMagicOffset,
+          kFlatbufferMagicString.data(),
+          kMagicSize) == 0) {
+    // Magic header for a binary file containing a Flatbuffer-serialized mobile
+    // Module.
+    return FileFormat::FlatbufferFileFormat;
+  } else if (std::memcmp(data, kZipMagicString.data(), kMagicSize) == 0) {
+    // Magic header for a zip file, which we use to store pickled sub-files.
+    return FileFormat::ZipFileFormat;
+  }
+  return FileFormat::UnknownFileFormat;
+}
+
+/**
+ * Returns the likely file format based on the magic header bytes of @p data.
+ * If the stream position changes while inspecting the data, this function will
+ * restore the stream position to its original offset before returning.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(std::istream& data) {
+  FileFormat format = FileFormat::UnknownFileFormat;
+  std::streampos orig_pos = data.tellg();
+  // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
+  std::array<char, kFileFormatHeaderSize> header;
+  data.read(header.data(), header.size());
+  if (data.good()) {
+    format = getFileFormat(header.data());
+  }
+  data.seekg(orig_pos, data.beg);
+  return format;
+}
+
+/**
+ * Returns the likely file format based on the magic header bytes of the file
+ * named @p filename.
+ */
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline FileFormat getFileFormat(const std::string& filename) {
+  std::ifstream data(filename, std::ifstream::binary);
+  return getFileFormat(data);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static void file_not_found_error() {
+  std::stringstream message;
+  message << "Error while opening file: ";
+  if (errno == ENOENT) {
+    message << "no such file or directory" << std::endl;
+  } else {
+    message << "error no is: " << errno << std::endl;
+  }
+  TORCH_CHECK(false, message.str());
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_file_content(
+    const char* filename) {
+#if defined(HAVE_MMAP)
+  int fd = open(filename, O_RDONLY);
+  if (fd < 0) {
+    // failed to open file, chances are it's no such file or directory.
+    file_not_found_error();
+  }
+  struct stat statbuf {};
+  fstat(fd, &statbuf);
+  size_t size = statbuf.st_size;
+  void* ptr = mmap(nullptr, statbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+  close(fd);
+  auto deleter = [statbuf](char* ptr) { munmap(ptr, statbuf.st_size); };
+  std::shared_ptr<char> data(reinterpret_cast<char*>(ptr), deleter);
+#else
+  FILE* f = fopen(filename, "rb");
+  if (f == nullptr) {
+    file_not_found_error();
+  }
+  fseek(f, 0, SEEK_END);
+  size_t size = ftell(f);
+  fseek(f, 0, SEEK_SET);
+  // make sure buffer size is multiple of alignment
+  size_t buffer_size = (size / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  fread(data.get(), size, 1, f);
+  fclose(f);
+#endif
+  return std::make_tuple(data, size);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_stream_content(
+    std::istream& in) {
+  // get size of the stream and reset to orig
+  std::streampos orig_pos = in.tellg();
+  in.seekg(orig_pos, std::ios::end);
+  const long size = in.tellg();
+  in.seekg(orig_pos, in.beg);
+
+  // read stream
+  // NOLINT make sure buffer size is multiple of alignment
+  size_t buffer_size = (size / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  in.read(data.get(), size);
+
+  // reset stream to original position
+  in.seekg(orig_pos, in.beg);
+  return std::make_tuple(data, size);
+}
+
+// NOLINTNEXTLINE(facebook-hte-NamespaceScopedStaticDeclaration)
+static inline std::tuple<std::shared_ptr<char>, size_t> get_rai_content(
+    caffe2::serialize::ReadAdapterInterface* rai) {
+  size_t buffer_size = (rai->size() / kMaxAlignment + 1) * kMaxAlignment;
+  std::shared_ptr<char> data(
+      static_cast<char*>(c10::alloc_cpu(buffer_size)), c10::free_cpu);
+  rai->read(
+      0, data.get(), rai->size(), "Loading ReadAdapterInterface to bytes");
+  return std::make_tuple(data, buffer_size);
+}
+
+} // namespace jit
+} // namespace torch