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Update Clang and GNU offload flags.

This commit is contained in:
Ye Luo 2021-01-28 20:57:05 -06:00
parent 83e5db5276
commit 85b79c3b41
2 changed files with 13 additions and 4 deletions
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10
CMake/ClangCompilers.cmake
View File

@ -16,10 +16,14 @@ IF(QMC_OMP)
SET(ENABLE_OPENMP 1)
IF(ENABLE_OFFLOAD AND NOT CMAKE_SYSTEM_NAME STREQUAL "CrayLinuxEnvironment")
SET(OFFLOAD_TARGET "nvptx64-nvidia-cuda" CACHE STRING "Offload target architecture")
SET(CLANG_OPENMP_OFFLOAD_FLAGS "-fopenmp-targets=${OFFLOAD_TARGET}")
IF(DEFINED OFFLOAD_ARCH)
SET(CLANG_OPENMP_OFFLOAD_FLAGS "-fopenmp-targets=${OFFLOAD_TARGET} -Xopenmp-target=${OFFLOAD_TARGET} -march=${OFFLOAD_ARCH}")
ELSE()
SET(CLANG_OPENMP_OFFLOAD_FLAGS "-fopenmp-targets=${OFFLOAD_TARGET}")
SET(CLANG_OPENMP_OFFLOAD_FLAGS "${CLANG_OPENMP_OFFLOAD_FLAGS} -Xopenmp-target=${OFFLOAD_TARGET} -march=${OFFLOAD_ARCH}")
ENDIF()
IF(OFFLOAD_TARGET MATCHES "nvptx64")
SET(CLANG_OPENMP_OFFLOAD_FLAGS "${CLANG_OPENMP_OFFLOAD_FLAGS} -Wno-unknown-cuda-version")
ENDIF()
# Intel clang compiler needs a different flag for the host side OpenMP library when offload is used.

7
CMake/GNUCompilers.cmake
View File

@ -10,7 +10,12 @@ SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
IF(QMC_OMP)
SET(ENABLE_OPENMP 1)
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fopenmp")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp")
IF(ENABLE_OFFLOAD)
SET(OFFLOAD_TARGET "nvptx-none" CACHE STRING "Offload target architecture")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp -foffload=${OFFLOAD_TARGET} -foffload=\"-lm -latomic\"")
ELSE()
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp")
ENDIF()
ENDIF(QMC_OMP)
# Set gnu specific flags (which we always want)