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Merged
TorreZuk merged 1 commit into from
Jul 9, 2025
Merged

find OpenMP config #517

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49 changes: 37 additions & 12 deletions projects/rocblas/clients/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,24 @@

cmake_minimum_required( VERSION 3.16.8 )

function( apply_omp_settings lib_target_ )
if (TARGET OpenMP::OpenMP_CXX)
set_target_properties( ${lib_target_} PROPERTIES
BUILD_RPATH "${HIP_CLANG_ROOT}/lib"
)
set_target_properties( ${lib_target_} PROPERTIES
INSTALL_RPATH "$ORIGIN/../llvm/lib"
)
elseif(TARGET OpenMP::omp)
set_target_properties( ${lib_target_} PROPERTIES
BUILD_RPATH "${HIP_CLANG_ROOT}/${openmp_LIB_DIR}"
)
set_target_properties( ${lib_target_} PROPERTIES
INSTALL_RPATH "$ORIGIN/../llvm/${openmp_LIB_DIR}"
)
endif()
endfunction()

# This has to be initialized before the project() command appears
# Set the default of CMAKE_BUILD_TYPE to be release, unless user specifies with -D. MSVC_IDE does not use CMAKE_BUILD_TYPE
if( NOT DEFINED CMAKE_CONFIGURATION_TYPES AND NOT DEFINED CMAKE_BUILD_TYPE )
Expand Down Expand Up @@ -69,22 +87,29 @@ endif()
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

# if it fails to find OpenMP compile and link flags in strange configurations it can just use non-parallel reference computation
# if there is no omp.h to find the client compilation will fail and this should be obvious, used to be REQUIRED
find_package(OpenMP)
# Look for openmp config in ROCm install to populate openmp_LIB_DIR and openmp_LIB_INSTALL_DIR
find_package(OpenMP CONFIG PATHS "${HIP_CLANG_ROOT}/lib/cmake")

if (TARGET OpenMP::OpenMP_CXX)
set( COMMON_LINK_LIBS "OpenMP::OpenMP_CXX")
get_filename_component(LIBOMP_PATH "${OpenMP_omp_LIBRARY}" PATH)
if (NOT WIN32)
list( APPEND COMMON_LINK_LIBS "-Wl,-rpath=${LIBOMP_PATH}")
if (TARGET OpenMP::omp)
set( COMMON_LINK_LIBS "OpenMP::omp")
message(STATUS "Found openmp-config.cmake at ${OpenMP_DIR}")
else()
# if it fails to find OpenMP compile and link flags in strange configurations it can just use non-parallel reference computation
# if there is no omp.h to find the client compilation will fail and this should be obvious, used to be REQUIRED
find_package(OpenMP)
if (TARGET OpenMP::OpenMP_CXX)
set( COMMON_LINK_LIBS "OpenMP::OpenMP_CXX")
if(HIP_PLATFORM STREQUAL amd)
list( APPEND COMMON_LINK_LIBS "-L\"${HIP_CLANG_ROOT}/lib\"")
if (NOT WIN32)
list( APPEND COMMON_LINK_LIBS "-lomp")
else()
list( APPEND COMMON_LINK_LIBS "libomp")
endif()
endif()
endif()
endif()

if (WIN32)
list( APPEND COMMON_LINK_LIBS "libomp")
endif()

if (TARGET Threads::Threads)
list( APPEND COMMON_LINK_LIBS "Threads::Threads")
endif()
Expand Down
2 changes: 2 additions & 0 deletions projects/rocblas/clients/benchmarks/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -73,8 +73,10 @@ endif()


target_link_libraries( rocblas-bench PRIVATE ${COMMON_LINK_LIBS} )
apply_omp_settings( rocblas-bench )
if( BUILD_WITH_TENSILE )
target_link_libraries( rocblas-gemm-tune PRIVATE ${COMMON_LINK_LIBS} )
apply_omp_settings( rocblas-gemm-tune )
endif()

target_compile_options(rocblas-bench PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${COMMON_CXX_OPTIONS}>)
Expand Down
1 change: 1 addition & 0 deletions projects/rocblas/clients/gtest/CMakeLists.txt
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Expand Up @@ -131,6 +131,7 @@ if (NOT WIN32)
list( APPEND COMMON_LINK_LIBS "-lm -lstdc++fs" )
endif()
target_link_libraries( rocblas-test PRIVATE ${COMMON_LINK_LIBS} )
apply_omp_settings( rocblas-test )

target_compile_options(rocblas-test PRIVATE $<$<COMPILE_LANGUAGE:CXX>:${COMMON_CXX_OPTIONS}>)

Expand Down