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61ba51e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | # Copyright 2025 SGLang Team. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
import os
import platform
import subprocess
import sys
from pathlib import Path
# isort: off
import torch
import torchada # noqa: F401
# isort: on
from setuptools import find_packages, setup
from torch.utils.cpp_extension import BuildExtension, CUDAExtension
root = Path(__file__).parent.resolve()
third_party = Path(os.environ.get("SGLANG_MUSA_THIRD_PARTY_DIR", "build/_deps"))
arch = platform.machine().lower()
class _RepoInfo:
"""Configuration for a third-party git repository."""
def __init__(self, name, git_repository, git_tag, git_shallow=False):
self.name = name
self.git_repository = git_repository
self.git_tag = git_tag
self.git_shallow = git_shallow
self.source_dir = third_party / name
_FLASHINFER_REPO = _RepoInfo(
name="flashinfer",
git_repository="https://github.com/flashinfer-ai/flashinfer.git",
git_tag="bc29697ba20b7e6bdb728ded98f04788e16ee021",
git_shallow=False,
)
_MUTLASS_REPO = _RepoInfo(
name="mutlass",
git_repository="https://github.com/MooreThreads/mutlass.git",
git_tag="3abd6a728aacd190df0d922514aca8a8bc3c46b7",
git_shallow=False,
)
def _get_version():
with open(root / "pyproject.toml") as f:
for line in f:
if line.startswith("version"):
return line.split("=")[1].strip().strip('"')
operator_namespace = "sgl_kernel"
include_dirs = [
root / "include",
root / "include" / "impl",
root / "csrc",
root / _FLASHINFER_REPO.source_dir / "include",
root / _FLASHINFER_REPO.source_dir / "csrc",
root / _MUTLASS_REPO.source_dir / "include",
]
sources = [
"csrc/common_extension_musa.cc",
str(_FLASHINFER_REPO.source_dir / "csrc/norm.cu"),
str(_FLASHINFER_REPO.source_dir / "csrc/renorm.cu"),
str(_FLASHINFER_REPO.source_dir / "csrc/sampling.cu"),
]
cxx_flags = ["force_mcc"]
libraries = ["c10", "torch", "torch_python"]
extra_link_args = [
"-Wl,-rpath,$ORIGIN/../../torch/lib",
f"-L/usr/lib/{arch}-linux-gnu",
"-lmublasLt",
]
default_target = "mp_31"
mtgpu_target = os.environ.get("MTGPU_TARGET", default_target)
if torch.musa.is_available():
try:
prop = torch.musa.get_device_properties(0)
mtgpu_target = f"mp_{prop.major}{prop.minor}"
except Exception as e:
print(f"Warning: Failed to detect GPU properties: {e}")
else:
print(f"Warning: torch.musa not available. Using default target: {mtgpu_target}")
if mtgpu_target not in ["mp_22", "mp_31"]:
print(
f"Warning: Unsupported GPU architecture detected '{mtgpu_target}'. Expected 'mp_22' or 'mp_31'."
)
sys.exit(1)
mcc_flags = [
"-DNDEBUG",
f"-DOPERATOR_NAMESPACE={operator_namespace}",
"-O3",
"-fPIC",
"-std=c++17",
f"--cuda-gpu-arch={mtgpu_target}",
"-x",
"musa",
"-mtgpu",
"-Od3",
"-ffast-math",
"-fmusa-flush-denormals-to-zero",
"-fno-strict-aliasing",
"-DUSE_MUSA",
"-DENABLE_BF16",
"-DFLASHINFER_ENABLE_F16",
"-DFLASHINFER_ENABLE_BF16",
]
if mtgpu_target == "mp_31":
mcc_flags.extend(
[
"-DENABLE_FP8",
"-DFLASHINFER_ENABLE_FP8",
"-DFLASHINFER_ENABLE_FP8_E4M3",
"-DFLASHINFER_ENABLE_FP8_E5M2",
]
)
ext_modules = [
CUDAExtension(
name="sgl_kernel.common_ops",
sources=sources,
include_dirs=include_dirs,
extra_compile_args={
"mcc": mcc_flags,
"cxx": cxx_flags,
},
libraries=libraries,
extra_link_args=extra_link_args,
py_limited_api=False,
),
]
class _CustomBuildExt(BuildExtension):
"""Custom build extension that clones third-party repositories before building."""
@staticmethod
def _clone_and_checkout(repo_path, repo_url, git_tag, git_shallow):
"""Clone a git repository and checkout a specific tag/commit."""
repo_path.parent.mkdir(parents=True, exist_ok=True)
if not repo_path.exists():
clone_cmd = ["git", "clone"]
if git_shallow:
clone_cmd += ["--depth", "1"]
clone_cmd += [repo_url, str(repo_path)]
subprocess.check_call(clone_cmd)
subprocess.check_call(["git", "checkout", git_tag], cwd=repo_path)
else:
subprocess.check_call(["git", "fetch", "--all"], cwd=repo_path)
subprocess.check_call(["git", "checkout", git_tag], cwd=repo_path)
def run(self):
if os.environ.get("SGLANG_MUSA_SKIP_THIRD_PARTY", "0") == "1":
print(
"Skipping third-party repositories cloning (SGLANG_MUSA_SKIP_THIRD_PARTY=1)"
)
else:
print("Cloning third-party repositories...")
self._clone_and_checkout(
_MUTLASS_REPO.source_dir,
_MUTLASS_REPO.git_repository,
_MUTLASS_REPO.git_tag,
_MUTLASS_REPO.git_shallow,
)
self._clone_and_checkout(
_FLASHINFER_REPO.source_dir,
_FLASHINFER_REPO.git_repository,
_FLASHINFER_REPO.git_tag,
_FLASHINFER_REPO.git_shallow,
)
print("Third-party repositories ready.")
super().run()
setup(
name="sgl-kernel",
version=_get_version(),
packages=find_packages(where="python"),
package_dir={"": "python"},
ext_modules=ext_modules,
cmdclass={"build_ext": _CustomBuildExt.with_options(use_ninja=True)},
options={"bdist_wheel": {"py_limited_api": "cp39"}},
)
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