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Enable AMX to hnswlib for FP32 innerproduct. #609

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Enable AMX to hnswlib for FP32 innerproduct. #609

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b2122ac
AMX enable
ruclz Jan 21, 2025
7e6fb30
AMX enable for FP32 innerproduct
ruclz Jan 21, 2025
f2723ad
AMX enable for FP32 innerproduct
ruclz Jan 21, 2025
59fa651
Add bf16
ruclz Feb 21, 2025
d176f7a
Support ann-bench
ruclz Mar 5, 2025
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35 changes: 34 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ project(hnswlib
include(GNUInstallDirs)
include(CheckCXXCompilerFlag)

SET(AMXEnable false)
add_library(hnswlib INTERFACE)
add_library(hnswlib::hnswlib ALIAS hnswlib)

Expand Down Expand Up @@ -48,11 +49,39 @@ if(HNSWLIB_EXAMPLES)
endif()
endif()
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
SET( CMAKE_CXX_FLAGS "-Ofast -lrt -std=c++11 -DHAVE_CXX0X -march=native -fpic -w -fopenmp -ftree-vectorize -ftree-vectorizer-verbose=0" )
SET( CMAKE_CXX_FLAGS "-O0 -g -lrt -std=c++11 -DHAVE_CXX0X -march=native -fpic -w -fopenmp -ftree-vectorize -ftree-vectorizer-verbose=0 " )
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
SET( CMAKE_CXX_FLAGS "/O2 -DHAVE_CXX0X /W1 /openmp /EHsc" )
endif()

if(AMXEnable)
set(CMAKE_CXX_FLAGS_BACKUP "${CMAKE_CXX_FLAGS}")
# 添加需要测试的编译器选项
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mamx-bf16")

# 测试代码片段
set(SOURCE_CODE "
#if !defined(__AMX_BF16__)
#error \"AMX not supported\"
#endif
int main() { return 0; }
")

check_cxx_source_compiles("${SOURCE_CODE}" HAS_AMX_SUPPORT)

if(HAS_AMX_SUPPORT)
message(STATUS "Compiler supports AMX")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_BACKUP} -mamx-bf16")
add_compile_definitions(USE_AMX=1)
else()
message(STATUS "Compiler does NOT support AMX")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_BACKUP}")
endif()
endif()


# 恢复CMAKE_REQUIRED_FLAGS的原始值

# examples
add_executable(example_search examples/cpp/example_search.cpp)
target_link_libraries(example_search hnswlib)
Expand All @@ -72,6 +101,10 @@ if(HNSWLIB_EXAMPLES)
add_executable(example_mt_search examples/cpp/example_mt_search.cpp)
target_link_libraries(example_mt_search hnswlib)


add_executable(example_mt_search_bf16 examples/cpp/example_mt_search_bf16.cpp)
target_link_libraries(example_mt_search_bf16 hnswlib)

add_executable(example_mt_filter examples/cpp/example_mt_filter.cpp)
target_link_libraries(example_mt_filter hnswlib)

Expand Down
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