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vllm-project--vllm/cmake/external_projects/qutlass.cmake
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chore: import upstream snapshot with attribution
2026-07-13 12:55:37 +08:00

161 lines
6.1 KiB
CMake

include(FetchContent)
set(CUTLASS_INCLUDE_DIR "${CUTLASS_INCLUDE_DIR}" CACHE PATH "Path to CUTLASS include/ directory")
if(DEFINED ENV{QUTLASS_SRC_DIR})
set(QUTLASS_SRC_DIR $ENV{QUTLASS_SRC_DIR})
endif()
# CMP0169 NEW: one-argument FetchContent_Populate(name) after Declare is invalid.
# Use explicit Populate(...) for git, or set SOURCE_DIR for local trees.
if(QUTLASS_SRC_DIR)
set(_qutlass_user_src "${QUTLASS_SRC_DIR}")
cmake_path(ABSOLUTE_PATH _qutlass_user_src
BASE_DIRECTORY "${CMAKE_SOURCE_DIR}"
NORMALIZE)
set(QUTLASS_SRC_DIR "${_qutlass_user_src}")
if(NOT IS_DIRECTORY "${QUTLASS_SRC_DIR}")
message(FATAL_ERROR
"[QUTLASS] QUTLASS_SRC_DIR is not an existing directory: '${QUTLASS_SRC_DIR}'")
endif()
set(qutlass_SOURCE_DIR "${QUTLASS_SRC_DIR}")
set(qutlass_BINARY_DIR "${CMAKE_BINARY_DIR}/qutlass-binary-dir-unused")
else()
set(_QUTLASS_UPSTREAM_REPO "https://github.com/IST-DASLab/qutlass.git")
set(_QUTLASS_UPSTREAM_TAG "830d2c4537c7396e14a02a46fbddd18b5d107c65")
set(_qutlass_fc_root "${FETCHCONTENT_BASE_DIR}")
if(NOT _qutlass_fc_root)
set(_qutlass_fc_root "${CMAKE_BINARY_DIR}/_deps")
endif()
set(_qutlass_src "${_qutlass_fc_root}/qutlass-src")
set(_qutlass_bin "${_qutlass_fc_root}/qutlass-build")
set(_qutlass_sub "${_qutlass_fc_root}/qutlass-subbuild")
if(EXISTS "${_qutlass_src}/qutlass/csrc/bindings.cpp")
set(qutlass_SOURCE_DIR "${_qutlass_src}")
set(qutlass_BINARY_DIR "${_qutlass_bin}")
else()
FetchContent_Populate(
qutlass
SUBBUILD_DIR "${_qutlass_sub}"
SOURCE_DIR "${_qutlass_src}"
BINARY_DIR "${_qutlass_bin}"
GIT_REPOSITORY "${_QUTLASS_UPSTREAM_REPO}"
GIT_TAG "${_QUTLASS_UPSTREAM_TAG}"
GIT_PROGRESS TRUE
)
endif()
endif()
if(NOT qutlass_SOURCE_DIR)
message(FATAL_ERROR "[QUTLASS] source directory could not be resolved.")
endif()
message(STATUS "[QUTLASS] QuTLASS is available at ${qutlass_SOURCE_DIR}")
if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 13.0)
cuda_archs_loose_intersection(QUTLASS_SM120_ARCHS "12.0f" "${CUDA_ARCHS}")
cuda_archs_loose_intersection(QUTLASS_SM100_ARCHS "10.0f" "${CUDA_ARCHS}")
else()
cuda_archs_loose_intersection(QUTLASS_SM120_ARCHS "12.0a;12.1a" "${CUDA_ARCHS}")
cuda_archs_loose_intersection(QUTLASS_SM100_ARCHS "10.0a;10.3a" "${CUDA_ARCHS}")
endif()
# QUTLASS uses TARGET_CUDA_ARCH as a single preprocessor selector for all its
# sources. Do not compile a mixed SM100/SM120 arch list with one selector; prefer
# SM100 when both families are requested because that is the primary deployed
# target for this extension today.
if(QUTLASS_SM100_ARCHS)
set(QUTLASS_ARCHS "${QUTLASS_SM100_ARCHS}")
set(QUTLASS_TARGET_CC 100)
if(QUTLASS_SM120_ARCHS)
message(WARNING
"[QUTLASS] Both SM100 and SM120 archs were requested; selecting SM100 "
"because TARGET_CUDA_ARCH is a single compile-time selector.")
endif()
elseif(QUTLASS_SM120_ARCHS)
set(QUTLASS_ARCHS "${QUTLASS_SM120_ARCHS}")
set(QUTLASS_TARGET_CC 120)
else()
set(QUTLASS_ARCHS)
endif()
if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.8 AND QUTLASS_ARCHS)
set(QUTLASS_SOURCES
csrc/qutlass_registration.cpp
${qutlass_SOURCE_DIR}/qutlass/csrc/bindings.cpp
${qutlass_SOURCE_DIR}/qutlass/csrc/gemm.cu
${qutlass_SOURCE_DIR}/qutlass/csrc/gemm_ada.cu
${qutlass_SOURCE_DIR}/qutlass/csrc/fused_quantize_mx.cu
${qutlass_SOURCE_DIR}/qutlass/csrc/fused_quantize_nv.cu
${qutlass_SOURCE_DIR}/qutlass/csrc/fused_quantize_mx_sm100.cu
${qutlass_SOURCE_DIR}/qutlass/csrc/fused_quantize_nv_sm100.cu
)
set(QUTLASS_INCLUDES
${qutlass_SOURCE_DIR}
${qutlass_SOURCE_DIR}/qutlass
${qutlass_SOURCE_DIR}/qutlass/csrc/include
${qutlass_SOURCE_DIR}/qutlass/csrc/include/cutlass_extensions
)
if(CUTLASS_INCLUDE_DIR AND EXISTS "${CUTLASS_INCLUDE_DIR}/cutlass/cutlass.h")
list(APPEND QUTLASS_INCLUDES "${CUTLASS_INCLUDE_DIR}")
if(CUTLASS_TOOLS_UTIL_INCLUDE_DIR AND
EXISTS "${CUTLASS_TOOLS_UTIL_INCLUDE_DIR}/cutlass/util/packed_stride.hpp")
list(APPEND QUTLASS_INCLUDES "${CUTLASS_TOOLS_UTIL_INCLUDE_DIR}")
else()
get_filename_component(_qutlass_cutlass_root "${CUTLASS_INCLUDE_DIR}" DIRECTORY)
if(EXISTS "${_qutlass_cutlass_root}/tools/util/include/cutlass/util/packed_stride.hpp")
list(APPEND QUTLASS_INCLUDES "${_qutlass_cutlass_root}/tools/util/include")
endif()
endif()
elseif(EXISTS "${qutlass_SOURCE_DIR}/qutlass/third_party/cutlass/include/cutlass/cutlass.h")
list(APPEND QUTLASS_INCLUDES
"${qutlass_SOURCE_DIR}/qutlass/third_party/cutlass/include"
"${qutlass_SOURCE_DIR}/qutlass/third_party/cutlass/tools/util/include")
message(STATUS "[QUTLASS] Using QuTLASS vendored CUTLASS headers (no vLLM CUTLASS detected).")
else()
message(FATAL_ERROR "[QUTLASS] CUTLASS headers not found. "
"Set -DCUTLASS_INCLUDE_DIR=/path/to/cutlass/include")
endif()
set_gencode_flags_for_srcs(
SRCS "${QUTLASS_SOURCES}"
CUDA_ARCHS "${QUTLASS_ARCHS}"
)
# QuTLASS uses legacy ATen headers and cannot be built with TORCH_TARGET_VERSION.
# Keep it as its own extension (registers torch.ops._qutlass_C).
define_extension_target(
_qutlass_C
DESTINATION vllm
LANGUAGE ${VLLM_GPU_LANG}
SOURCES ${QUTLASS_SOURCES}
COMPILE_FLAGS ${VLLM_GPU_FLAGS}
ARCHITECTURES ${VLLM_GPU_ARCHES}
INCLUDE_DIRECTORIES ${QUTLASS_INCLUDES}
USE_SABI 3
WITH_SOABI)
target_compile_definitions(_qutlass_C PRIVATE
QUTLASS_DISABLE_PYBIND=1
TARGET_CUDA_ARCH=${QUTLASS_TARGET_CC}
CUTLASS_ENABLE_DIRECT_CUDA_DRIVER_CALL=1)
set_property(SOURCE ${QUTLASS_SOURCES} APPEND PROPERTY COMPILE_OPTIONS
$<$<COMPILE_LANGUAGE:CUDA>:--expt-relaxed-constexpr --use_fast_math -O3>
)
else()
if("${CMAKE_CUDA_COMPILER_VERSION}" VERSION_LESS "12.8")
message(STATUS
"[QUTLASS] Skipping build: CUDA 12.8 or newer is required (found ${CMAKE_CUDA_COMPILER_VERSION}).")
else()
message(STATUS
"[QUTLASS] Skipping build: no supported arch (12.0f / 10.0f) found in "
"CUDA_ARCHS='${CUDA_ARCHS}'.")
endif()
add_custom_target(_qutlass_C)
endif()