| """ JIT scripting/tracing utils |
| |
| Hacked together by / Copyright 2020 Ross Wightman |
| """ |
| import os |
|
|
| import torch |
|
|
|
|
| def set_jit_legacy(): |
| """ Set JIT executor to legacy w/ support for op fusion |
| This is hopefully a temporary need in 1.5/1.5.1/1.6 to restore performance due to changes |
| in the JIT exectutor. These API are not supported so could change. |
| """ |
| |
| assert hasattr(torch._C, '_jit_set_profiling_executor'), "Old JIT behavior doesn't exist!" |
| torch._C._jit_set_profiling_executor(False) |
| torch._C._jit_set_profiling_mode(False) |
| torch._C._jit_override_can_fuse_on_gpu(True) |
| |
|
|
|
|
| def set_jit_fuser(fuser): |
| if fuser == "te": |
| |
| torch._C._jit_set_profiling_executor(True) |
| torch._C._jit_set_profiling_mode(True) |
| torch._C._jit_override_can_fuse_on_cpu(False) |
| torch._C._jit_override_can_fuse_on_gpu(True) |
| torch._C._jit_set_texpr_fuser_enabled(True) |
| try: |
| torch._C._jit_set_nvfuser_enabled(False) |
| except Exception: |
| pass |
| elif fuser == "old" or fuser == "legacy": |
| torch._C._jit_set_profiling_executor(False) |
| torch._C._jit_set_profiling_mode(False) |
| torch._C._jit_override_can_fuse_on_gpu(True) |
| torch._C._jit_set_texpr_fuser_enabled(False) |
| try: |
| torch._C._jit_set_nvfuser_enabled(False) |
| except Exception: |
| pass |
| elif fuser == "nvfuser" or fuser == "nvf": |
| os.environ['PYTORCH_NVFUSER_DISABLE_FALLBACK'] = '1' |
| |
| |
| torch._C._jit_set_texpr_fuser_enabled(False) |
| torch._C._jit_set_profiling_executor(True) |
| torch._C._jit_set_profiling_mode(True) |
| torch._C._jit_can_fuse_on_cpu() |
| torch._C._jit_can_fuse_on_gpu() |
| torch._C._jit_override_can_fuse_on_cpu(False) |
| torch._C._jit_override_can_fuse_on_gpu(False) |
| torch._C._jit_set_nvfuser_guard_mode(True) |
| torch._C._jit_set_nvfuser_enabled(True) |
| else: |
| assert False, f"Invalid jit fuser ({fuser})" |
|
|
