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Intel GPU: Enable SYCL building system #1671

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Intel GPU: Enable SYCL building system #1671

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f18c096
Intel GPU: Enable SYCL building system
fengyuan14 Jun 5, 2025
0f2f325
Merge branch 'bitsandbytes-foundation:main' into intel/sycl_building_…
fengyuan14 Jun 5, 2025
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25 changes: 22 additions & 3 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
# For GCC: `cmake -B build . && cmake --build build`
# For MSVC: `cmake -B build . && cmake --build build --config Release`
# You can also use the following options and variables
# - COMPUTE_BACKEND: Set to `cpu`, `cuda`, or `mps` to select the backend
# - COMPUTE_BACKEND: Set to `cpu`, `cuda`, `mps`, or `xpu` to select the backend
# - CUDA_VERSION: The expected CUDA version, for sanity checking. The actual version
# is whatever CMake finds on your path.
# - COMPUTE_CAPABILITY: Which GPU Arch/Compute codes to provide to NVCC.
Expand All @@ -30,8 +30,8 @@ set(METAL_FILES csrc/mps_kernels.metal)
# C++ sources are always included
list(APPEND SRC_FILES ${CPP_FILES})

set(COMPUTE_BACKEND "cpu" CACHE STRING "The compute backend to use (cpu, cuda, mps)")
set_property(CACHE COMPUTE_BACKEND PROPERTY STRINGS cpu cuda mps)
set(COMPUTE_BACKEND "cpu" CACHE STRING "The compute backend to use (cpu, cuda, mps, xpu)")
set_property(CACHE COMPUTE_BACKEND PROPERTY STRINGS cpu cuda mps xpu)
option(PTXAS_VERBOSE "Pass through -v flag to PTX Assembler" OFF)

if(APPLE)
Expand All @@ -48,17 +48,28 @@ if(${COMPUTE_BACKEND} STREQUAL "cuda")
endif()
set(BUILD_CUDA ON)
set(BUILD_MPS OFF)
set(BUILD_XPU OFF)
elseif(${COMPUTE_BACKEND} STREQUAL "mps")
if(NOT APPLE)
message(FATAL_ERROR "MPS is only supported on macOS" )
endif()
set(BUILD_CUDA OFF)
set(BUILD_MPS ON)
set(BUILD_XPU OFF)
elseif(${COMPUTE_BACKEND} STREQUAL "xpu")
if(APPLE)
message(FATAL_ERROR "XPU is not supported on macOS" )
endif()
set(BUILD_CUDA OFF)
set(BUILD_MPS OFF)
set(BUILD_XPU ON)
else()
set(BUILD_CUDA OFF)
set(BUILD_MPS OFF)
set(BUILD_XPU OFF)
endif()

list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)

if(BUILD_CUDA)
# NVCC normally will only work with MSVC up to 1939. VS2022 17.10+ starts using versions 1940+.
Expand Down Expand Up @@ -179,6 +190,14 @@ elseif(BUILD_MPS)
COMMENT "Compiling Metal kernels"
VERBATIM)
add_custom_target(metallib DEPENDS "bitsandbytes/bitsandbytes.metallib")
elseif(BUILD_XPU)
include(${PROJECT_SOURCE_DIR}/cmake/XPU.cmake)
include(${PROJECT_SOURCE_DIR}/cmake/XPUBuildFlags.cmake)

if(BUILD_TEST)
# Test SYCL building system
add_subdirectory(${PROJECT_SOURCE_DIR}/tests/sycl ${CMAKE_BINARY_DIR}/test_sycl)
endif()
else()
string(APPEND BNB_OUTPUT_NAME "_cpu")
set(GPU_SOURCES)
Expand Down
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