wehub-resource-sync
118 lines
5.0 KiB
Bash
Executable File
118 lines
5.0 KiB
Bash
Executable File
#!/bin/bash
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set -e
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EXTRA_PIP_INSTALL_FLAGS="--no-build-isolation"
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# Avoid overcommitting the CPU during builds that compile native code.
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export NVCC_THREADS=2
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export MAX_JOBS=1
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backend_dir=$(dirname $0)
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if [ -d $backend_dir/common ]; then
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source $backend_dir/common/libbackend.sh
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else
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source $backend_dir/../common/libbackend.sh
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fi
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if [ "x${BUILD_PROFILE}" == "xintel" ]; then
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EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
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fi
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if [ "x${BUILD_PROFILE}" == "xcpu" ]; then
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EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-best-match"
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fi
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# cublas12 needs a cu128 torch index (see requirements-cublas12.txt) — without
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# unsafe-best-match uv falls through to default PyPI's cu130 torch wheel and
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# the resulting sgl-kernel can't load on our cu12 host libs.
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if [ "x${BUILD_PROFILE}" == "xcublas12" ]; then
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EXTRA_PIP_INSTALL_FLAGS+=" --index-strategy=unsafe-best-match"
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fi
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# sglang 0.5.11 (Gemma 4 support) declares flash-attn-4 as a hard dep, but
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# upstream only publishes pre-release wheels (4.0.0b*). uv rejects
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# pre-releases by default — opt in for sglang specifically. Drop this once
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# flash-attn-4 4.0 stable lands.
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EXTRA_PIP_INSTALL_FLAGS+=" --prerelease=allow"
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# JetPack 7 / L4T arm64 sglang + torch wheels come straight from PyPI now
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# (torch 2.11+ ships aarch64 + cu130 manylinux wheels and sglang 0.5.11+
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# ships a cp312 aarch64 wheel pinned to that torch). They're cp312-only,
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# so bump the venv Python accordingly.
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# https://pytorch.org/blog/vllm-and-pytorch-work-together-to-improve-the-developer-experience-on-aarch64/
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if [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
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PYTHON_VERSION="3.12"
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PYTHON_PATCH="12"
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PY_STANDALONE_TAG="20251120"
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fi
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# sglang's CPU path has no prebuilt wheel on PyPI — upstream publishes
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# a separate pyproject_cpu.toml that must be swapped in before `pip install`.
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# Reference: docker/xeon.Dockerfile in the sglang upstream repo.
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#
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# When BUILD_TYPE is empty (CPU profile) or FROM_SOURCE=true is forced,
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# install torch/transformers/etc from requirements-cpu.txt, then clone
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# sglang and install its python/ and sgl-kernel/ packages from source
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# using the CPU pyproject.
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if [ "x${BUILD_TYPE}" == "x" ] || [ "x${FROM_SOURCE:-}" == "xtrue" ]; then
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# sgl-kernel's CPU build links against libnuma and libtbb. Install
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# them here (Docker builder stage) before running the source build.
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# Harmless no-op on runs outside the docker build since installRequirements
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# below still needs them only if we reach the source build branch.
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if command -v apt-get >/dev/null 2>&1 && [ "$(id -u)" = "0" ]; then
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apt-get update
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DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
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libnuma-dev numactl libtbb-dev libgomp1 libomp-dev google-perftools \
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build-essential cmake ninja-build
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fi
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installRequirements
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# sgl-kernel's pyproject_cpu.toml uses scikit-build-core as its build
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# backend. With --no-build-isolation, that (and ninja/cmake) must be
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# present in the venv before we build from source.
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uv pip install --no-build-isolation "scikit-build-core>=0.10" ninja cmake
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# sgl-kernel's CPU shm.cpp uses __m512 AVX-512 intrinsics unconditionally.
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# csrc/cpu/CMakeLists.txt hard-codes add_compile_options(-march=native),
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# which on runners without AVX-512 in /proc/cpuinfo fails with
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# "__m512 return without 'avx512f' enabled changes the ABI".
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# CXXFLAGS alone is insufficient because CMake's add_compile_options()
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# appends -march=native *after* CXXFLAGS, overriding it.
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# We therefore patch the CMakeLists.txt to replace -march=native with
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# -march=sapphirerapids so the flag is consistent throughout the build.
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# The resulting binary still requires an AVX-512 capable CPU at runtime,
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# same constraint sglang upstream documents in docker/xeon.Dockerfile.
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# Pin the source build to the same release the GPU path floors on
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# (0.5.11, see requirements-cublas12-after.txt). An unpinned master clone
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# pulls in newer CPU kernels (e.g. mamba/fla.cpp) that fail to compile
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# (constexpr non-constant + kineto_LIBRARY-NOTFOUND). Bump deliberately.
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SGLANG_VERSION="${SGLANG_VERSION:-v0.5.11}"
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_sgl_src=$(mktemp -d)
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trap 'rm -rf "${_sgl_src}"' EXIT
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git clone --depth 1 --branch "${SGLANG_VERSION}" \
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https://github.com/sgl-project/sglang "${_sgl_src}/sglang"
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# Patch -march=native → -march=sapphirerapids in the CPU kernel CMakeLists
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sed -i 's/-march=native/-march=sapphirerapids/g' \
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"${_sgl_src}/sglang/sgl-kernel/csrc/cpu/CMakeLists.txt"
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pushd "${_sgl_src}/sglang/sgl-kernel"
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if [ -f pyproject_cpu.toml ]; then
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cp pyproject_cpu.toml pyproject.toml
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fi
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uv pip install ${EXTRA_PIP_INSTALL_FLAGS:-} .
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popd
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pushd "${_sgl_src}/sglang/python"
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if [ -f pyproject_cpu.toml ]; then
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cp pyproject_cpu.toml pyproject.toml
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fi
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uv pip install ${EXTRA_PIP_INSTALL_FLAGS:-} .
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popd
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else
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installRequirements
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fi
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