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FindO2GPU.cmake
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201 lines (190 loc) · 7.21 KB
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# Copyright CERN and copyright holders of ALICE O2. This software is distributed
# under the terms of the GNU General Public License v3 (GPL Version 3), copied
# verbatim in the file "COPYING".
#
# See http://alice-o2.web.cern.ch/license for full licensing information.
#
# In applying this license CERN does not waive the privileges and immunities
# granted to it by virtue of its status as an Intergovernmental Organization or
# submit itself to any jurisdiction.
if(NOT DEFINED ENABLE_CUDA)
set(ENABLE_CUDA "AUTO")
endif()
if(NOT DEFINED ENABLE_OPENCL1)
set(ENABLE_OPENCL1 "AUTO")
endif()
if(NOT DEFINED ENABLE_OPENCL2)
set(ENABLE_OPENCL2 "AUTO")
endif()
if(NOT DEFINED ENABLE_HIP)
set(ENABLE_HIP "AUTO")
endif()
string(TOUPPER "${ENABLE_CUDA}" ENABLE_CUDA)
string(TOUPPER "${ENABLE_OPENCL1}" ENABLE_OPENCL1)
string(TOUPPER "${ENABLE_OPENCL2}" ENABLE_OPENCL2)
string(TOUPPER "${ENABLE_HIP}" ENABLE_HIP)
# Detect and enable CUDA
if(ENABLE_CUDA)
set(CUDA_MINIMUM_VERSION "10.1")
if(CUDA_GCCBIN)
message(STATUS "Using as CUDA GCC version: ${CUDA_GCCBIN}")
set(CUDA_HOST_COMPILER "${CUDA_GCCBIN}")
endif()
set(CMAKE_CUDA_STANDARD 14)
set(CMAKE_CUDA_STANDARD_REQUIRED TRUE)
find_package(cub)
set_package_properties(cub PROPERTIES TYPE OPTIONAL)
include(CheckLanguage)
check_language(CUDA)
if(CMAKE_CUDA_COMPILER AND CUB_FOUND)
enable_language(CUDA)
get_property(LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES)
if(NOT CUDA IN_LIST LANGUAGES)
message(FATAL_ERROR "CUDA was found but cannot be enabled")
endif()
find_path(THRUST_INCLUDE_DIR thrust/version.h PATHS ${CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES} NO_DEFAULT_PATH)
if(THRUST_INCLUDE_DIR STREQUAL "THRUST_INCLUDE_DIR-NOTFOUND")
message(FATAL_ERROR "CUDA found but thrust not available")
endif()
# Forward CXX flags to CUDA C++ Host compiler (for warnings, gdb, etc.)
STRING(REGEX REPLACE "\-std=[^ ]*" "" CMAKE_CXX_FLAGS_NOSTD ${CMAKE_CXX_FLAGS}) # Need to strip c++17 imposed by alidist defaults
set(CMAKE_CUDA_FLAGS "-Xcompiler \"${CMAKE_CXX_FLAGS_NOSTD}\" --expt-relaxed-constexpr -Xptxas -v")
set(CMAKE_CUDA_FLAGS_DEBUG "-lineinfo -Xcompiler \"${CMAKE_CXX_FLAGS_DEBUG}\" -Xptxas -O0 -Xcompiler -O0")
if(NOT CMAKE_BUILD_TYPE STREQUAL "DEBUG")
set(CMAKE_CUDA_FLAGS_${CMAKE_BUILD_TYPE} "-Xcompiler \"${CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE}}\" -Xptxas -O4 -Xcompiler -O4 -use_fast_math")
endif()
if(CUDA_COMPUTETARGET)
set(
CMAKE_CUDA_FLAGS
"${CMAKE_CUDA_FLAGS} -gencode arch=compute_${CUDA_COMPUTETARGET},code=sm_${CUDA_COMPUTETARGET}"
)
endif()
set(CUDA_ENABLED ON)
message(STATUS "CUDA found (Version ${CMAKE_CUDA_COMPILER_VERSION})")
elseif(NOT ENABLE_CUDA STREQUAL "AUTO")
message(FATAL_ERROR "CUDA not found")
endif()
endif()
# Detect and enable OpenCL 1.2 from AMD
if(ENABLE_OPENCL1 OR ENABLE_OPENCL2)
find_package(OpenCL)
if((ENABLE_OPENCL1 AND NOT ENABLE_OPENCL1 STREQUAL "AUTO")
OR (ENABLE_OPENCL2 AND NOT ENABLE_OPENCL2 STREQUAL "AUTO"))
set_package_properties(OpenCL PROPERTIES TYPE REQUIRED)
else()
set_package_properties(OpenCL PROPERTIES TYPE OPTIONAL)
endif()
endif()
if(ENABLE_OPENCL1)
if(NOT AMDAPPSDKROOT)
set(AMDAPPSDKROOT "$ENV{AMDAPPSDKROOT}")
endif()
if(OpenCL_FOUND
AND OpenCL_VERSION_STRING VERSION_GREATER_EQUAL 1.2
AND AMDAPPSDKROOT
AND EXISTS "${AMDAPPSDKROOT}")
set(OPENCL1_ENABLED ON)
message(STATUS "Found AMD OpenCL 1.2")
elseif(NOT ENABLE_OPENCL1 STREQUAL "AUTO")
message(FATAL_ERROR "AMD OpenCL 1.2 not available")
endif()
endif()
# Detect and enable OpenCL 2.x
if(ENABLE_OPENCL2)
find_package(LLVM)
if(LLVM_FOUND)
find_package(Clang)
endif()
find_package(ROCM PATHS /opt/rocm)
if(NOT ROCM_DIR STREQUAL "ROCM_DIR-NOTFOUND")
get_filename_component(ROCM_ROOT "${ROCM_DIR}/../../../" ABSOLUTE)
else()
set(ROCM_ROOT "/opt/rocm")
endif()
find_program(CLANG_OCL clang-ocl PATHS "${ROCM_ROOT}/bin")
find_program(ROCM_AGENT_ENUMERATOR rocm_agent_enumerator PATHS "${ROCM_ROOT}/bin")
find_program(LLVM_SPIRV llvm-spirv)
if(OpenCL_VERSION_STRING VERSION_GREATER_EQUAL 2.0
AND Clang_FOUND
AND LLVM_FOUND
AND LLVM_PACKAGE_VERSION VERSION_GREATER_EQUAL 10.0
AND NOT CLANG_OCL STREQUAL "CLANG_OCL-NOTFOUND")
set(OPENCL2_ENABLED_AMD ON)
endif()
if(OpenCL_VERSION_STRING VERSION_GREATER_EQUAL 2.2
AND NOT LLVM_SPIRV STREQUAL "LLVM_SPIRV-NOTFOUND")
set(OPENCL2_ENABLED_SPIRV ON)
endif ()
if((OpenCL_VERSION_STRING VERSION_GREATER_EQUAL 2.2 AND Clang_FOUND)
OR OPENCL2_ENABLED_AMD
OR OPENCL2_ENABLED_SPIRV)
set(OPENCL2_ENABLED ON)
message(
STATUS
"Found OpenCL 2 (${OpenCL_VERSION_STRING} ; AMD ${OPENCL2_ENABLED_AMD} ${CLANG_OCL} ; SPIR-V ${OPENCL2_ENABLED_SPIRV} ${LLVM_SPIRV} with CLANG ${LLVM_PACKAGE_VERSION})"
)
elseif(NOT ENABLE_OPENCL2 STREQUAL "AUTO")
message(FATAL_ERROR "OpenCL 2.x not available")
endif()
if (FORCE_OPENCL2_ALL AND NOT(OPENCL2_ENABLED_AMD AND OPENCL2_ENABLED_SPIRV))
message(FATAL_ERROR "Not all OpenCL2 backends available, but requested (AMD ${OPENCL2_ENABLED_AMD} SPIRV ${OPENCL2_ENABLED_SPIRV})")
endif()
endif()
# Detect and enable HIP
if(ENABLE_HIP)
if(NOT DEFINED HIP_PATH)
if(NOT DEFINED ENV{HIP_PATH})
set(HIP_PATH
"/opt/rocm/hip"
CACHE PATH "Path to which HIP has been installed")
else()
set(HIP_PATH
$ENV{HIP_PATH}
CACHE PATH "Path to which HIP has been installed")
endif()
endif()
if(NOT DEFINED HCC_HOME)
if(NOT DEFINED ENV{HCC_HOME})
set(HCC_HOME
"${HIP_PATH}/../hcc"
CACHE PATH "Path to which HCC has been installed")
else()
set(HCC_HOME
$ENV{HCC_HOME}
CACHE PATH "Path to which HCC has been installed")
endif()
endif()
if(EXISTS "${HIP_PATH}" AND EXISTS "${HCC_HOME}")
get_filename_component(hip_ROOT "${HIP_PATH}" ABSOLUTE)
get_filename_component(hcc_ROOT "${HCC_HOME}" ABSOLUTE)
find_package(hip)
find_package(hipcub)
find_package(rocprim)
find_package(rocthrust)
if(ENABLE_HIP STREQUAL "AUTO")
set_package_properties(hip PROPERTIES TYPE OPTIONAL)
set_package_properties(hipcub PROPERTIES TYPE OPTIONAL)
set_package_properties(rocprim PROPERTIES TYPE OPTIONAL)
set_package_properties(rocthrust PROPERTIES TYPE OPTIONAL)
else()
set_package_properties(hip PROPERTIES TYPE REQUIRED)
set_package_properties(hipcub PROPERTIES TYPE REQUIRED)
set_package_properties(rocprim PROPERTIES TYPE REQUIRED)
set_package_properties(rocthrust PROPERTIES TYPE REQUIRED)
endif()
if(hip_FOUND AND hipcub_FOUND AND rocthrust_FOUND AND rocprim_FOUND AND hip_HIPCC_EXECUTABLE)
set(HIP_ENABLED ON)
set_target_properties(rocthrust PROPERTIES IMPORTED_GLOBAL TRUE)
add_library(ROCm::rocThrust ALIAS rocthrust)
message(STATUS "HIP Found (${hip_HIPCC_EXECUTABLE})")
endif()
endif()
if(NOT HIP_ENABLED AND NOT ENABLE_HIP STREQUAL "AUTO")
message(
FATAL_ERROR
"HIP requested but HIP_PATH=${HIP_PATH} or HCC_HOME=${HCC_HOME} does not exist"
)
endif()
endif()
# if we end up here without a FATAL, it means we have found the "O2GPU" package
set(O2GPU_FOUND TRUE)