setup.py

# Copyright (c) 2025 PaddlePaddle Authors. 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.
# Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.

import os
import re
import shutil
import subprocess


def change_pwd():
    """change_pwd"""
    path = os.path.dirname(__file__)
    if path:
        os.chdir(path)


def setup_ops_extension():
    """setup_ops_extension"""
    from paddle.utils.cpp_extension import CUDAExtension, setup

    nvcc_path = shutil.which("nvcc")
    if nvcc_path is None:
        raise FileNotFoundError(
            "nvcc command not found. Please make sure CUDA toolkit is installed and nvcc is in PATH."
        )

    result = subprocess.run(
        ["nvcc", "--version"],
        capture_output=True,
        text=True,
        check=True,
    )
    version_output = result.stdout

    match = re.search(r"release (\d+)\.(\d+)", version_output)
    if not match:
        raise ValueError(
            f"Cannot parse CUDA version from nvcc output:\n{version_output}"
        )
    cuda_major = int(match.group(1))
    cuda_minor = int(match.group(2))

    nvcc_args = [
        "-O3",
        "-U__CUDA_NO_HALF_OPERATORS__",
        "-U__CUDA_NO_HALF_CONVERSIONS__",
        "-U__CUDA_NO_BFLOAT16_OPERATORS__",
        "-U__CUDA_NO_BFLOAT16_CONVERSIONS__",
        "-U__CUDA_NO_BFLOAT162_OPERATORS__",
        "-U__CUDA_NO_BFLOAT162_CONVERSIONS__",
        "--expt-relaxed-constexpr",
        "--expt-extended-lambda",
        "-maxrregcount=32",
        "-lineinfo",
        "-DCUTLASS_DEBUG_TRACE_LEVEL=0",
        "-gencode=arch=compute_80,code=sm_80",
        "-gencode=arch=compute_90a,code=sm_90a",
        "-gencode=arch=compute_100,code=sm_100",
        "-DNDEBUG",
    ]
    if cuda_major < 12:
        raise ValueError(
            f"CUDA version must be >= 12. Detected version: {cuda_major}.{cuda_minor}"
        )
    if cuda_major == 12 and cuda_minor < 8:
        nvcc_args = [arg for arg in nvcc_args if "compute_100" not in arg]

    change_pwd()
    setup(
        name="paddlefleet.extensions.ops",
        ext_modules=CUDAExtension(
            sources=[
                "./src/paddlefleet/extensions/tokens_stable_unzip.cu",
            ],
            include_dirs=[
                os.path.join(os.getcwd(), "src/paddlefleet/extensions"),
            ],
            extra_compile_args={
                "cxx": ["-O3", "-w", "-Wno-abi", "-fPIC", "-std=c++17"],
                "nvcc": nvcc_args,
            },
        ),
    )


setup_ops_extension()