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CUDA.cmake
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CUDA.cmake
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# CUDA Module
if(USE_CUDA)
find_cuda(${USE_CUDA} REQUIRED)
else(USE_CUDA)
return()
endif()
###### Borrowed from MSHADOW project
include(CheckCXXCompilerFlag)
check_cxx_compiler_flag("-std=c++11" SUPPORT_CXX11)
################################################################################################
# A function for automatic detection of GPUs installed (if autodetection is enabled)
# Usage:
# dgl_detect_installed_gpus(out_variable)
function(dgl_detect_installed_gpus out_variable)
set(CUDA_gpu_detect_output "")
if(NOT CUDA_gpu_detect_output)
message(STATUS "Running GPU architecture autodetection")
set(__cufile ${PROJECT_BINARY_DIR}/detect_cuda_archs.cu)
file(WRITE ${__cufile} ""
"#include <cstdio>\n"
"#include <iostream>\n"
"using namespace std;\n"
"int main()\n"
"{\n"
" int count = 0;\n"
" if (cudaSuccess != cudaGetDeviceCount(&count)) { return -1; }\n"
" if (count == 0) { cerr << \"No cuda devices detected\" << endl; return -1; }\n"
" for (int device = 0; device < count; ++device)\n"
" {\n"
" cudaDeviceProp prop;\n"
" if (cudaSuccess == cudaGetDeviceProperties(&prop, device))\n"
" std::printf(\"%d.%d \", prop.major, prop.minor);\n"
" }\n"
" return 0;\n"
"}\n")
if(MSVC)
#find vcvarsall.bat and run it building msvc environment
get_filename_component(MY_COMPILER_DIR ${CMAKE_CXX_COMPILER} DIRECTORY)
find_file(MY_VCVARSALL_BAT vcvarsall.bat "${MY_COMPILER_DIR}/.." "${MY_COMPILER_DIR}/../..")
execute_process(COMMAND ${MY_VCVARSALL_BAT} && ${CUDA_NVCC_EXECUTABLE} -arch sm_30 --run ${__cufile}
WORKING_DIRECTORY "${PROJECT_BINARY_DIR}/CMakeFiles/"
RESULT_VARIABLE __nvcc_res OUTPUT_VARIABLE __nvcc_out
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
if(CUDA_LIBRARY_PATH)
set(CUDA_LINK_LIBRARY_PATH "-L${CUDA_LIBRARY_PATH}")
endif()
execute_process(COMMAND ${CUDA_NVCC_EXECUTABLE} -arch sm_30 --run ${__cufile} ${CUDA_LINK_LIBRARY_PATH}
WORKING_DIRECTORY "${PROJECT_BINARY_DIR}/CMakeFiles/"
RESULT_VARIABLE __nvcc_res OUTPUT_VARIABLE __nvcc_out
OUTPUT_STRIP_TRAILING_WHITESPACE)
endif()
if(__nvcc_res EQUAL 0)
# nvcc outputs text containing line breaks when building with MSVC.
# The line below prevents CMake from inserting a variable with line
# breaks in the cache
message(STATUS "Found CUDA arch ${__nvcc_out}")
string(REGEX MATCH "([1-9].[0-9])" __nvcc_out "${__nvcc_out}")
string(REPLACE "2.1" "2.1(2.0)" __nvcc_out "${__nvcc_out}")
set(CUDA_gpu_detect_output ${__nvcc_out} CACHE INTERNAL "Returned GPU architetures from mshadow_detect_gpus tool" FORCE)
else()
message(WARNING "Running GPU detection script with nvcc failed: ${__nvcc_out}")
endif()
endif()
if(NOT CUDA_gpu_detect_output)
message(WARNING "Automatic GPU detection failed. Building for all known architectures (${mshadow_known_gpu_archs}).")
set(${out_variable} ${mshadow_known_gpu_archs} PARENT_SCOPE)
else()
set(${out_variable} ${CUDA_gpu_detect_output} PARENT_SCOPE)
endif()
endfunction()
################################################################################################
# Function for selecting GPU arch flags for nvcc based on CUDA_ARCH_NAME
# Usage:
# dgl_select_nvcc_arch_flags(out_variable)
function(dgl_select_nvcc_arch_flags out_variable)
# List of arch names
set(__archs_names "Fermi" "Kepler" "Maxwell" "Pascal" "Volta" "All" "Manual")
set(__archs_name_default "All")
if(NOT CMAKE_CROSSCOMPILING)
list(APPEND __archs_names "Auto")
set(__archs_name_default "Auto")
endif()
# set CUDA_ARCH_NAME strings (so it will be seen as dropbox in CMake-Gui)
set(CUDA_ARCH_NAME ${__archs_name_default} CACHE STRING "Select target NVIDIA GPU achitecture.")
set_property( CACHE CUDA_ARCH_NAME PROPERTY STRINGS "" ${__archs_names} )
mark_as_advanced(CUDA_ARCH_NAME)
# verify CUDA_ARCH_NAME value
if(NOT ";${__archs_names};" MATCHES ";${CUDA_ARCH_NAME};")
string(REPLACE ";" ", " __archs_names "${__archs_names}")
message(FATAL_ERROR "Only ${__archs_names} architeture names are supported.")
endif()
if(${CUDA_ARCH_NAME} STREQUAL "Manual")
set(CUDA_ARCH_BIN ${mshadow_known_gpu_archs} CACHE STRING "Specify 'real' GPU architectures to build binaries for, BIN(PTX) format is supported")
set(CUDA_ARCH_PTX "50" CACHE STRING "Specify 'virtual' PTX architectures to build PTX intermediate code for")
mark_as_advanced(CUDA_ARCH_BIN CUDA_ARCH_PTX)
else()
unset(CUDA_ARCH_BIN CACHE)
unset(CUDA_ARCH_PTX CACHE)
endif()
if(${CUDA_ARCH_NAME} STREQUAL "Fermi")
set(__cuda_arch_bin "20 21(20)")
elseif(${CUDA_ARCH_NAME} STREQUAL "Kepler")
set(__cuda_arch_bin "30 35")
elseif(${CUDA_ARCH_NAME} STREQUAL "Maxwell")
set(__cuda_arch_bin "50")
elseif(${CUDA_ARCH_NAME} STREQUAL "Pascal")
set(__cuda_arch_bin "60 61")
elseif(${CUDA_ARCH_NAME} STREQUAL "Volta")
set(__cuda_arch_bin "70")
elseif(${CUDA_ARCH_NAME} STREQUAL "All")
set(__cuda_arch_bin ${mshadow_known_gpu_archs})
elseif(${CUDA_ARCH_NAME} STREQUAL "Auto")
dgl_detect_installed_gpus(__cuda_arch_bin)
else() # (${CUDA_ARCH_NAME} STREQUAL "Manual")
set(__cuda_arch_bin ${CUDA_ARCH_BIN})
endif()
# remove dots and convert to lists
string(REGEX REPLACE "\\." "" __cuda_arch_bin "${__cuda_arch_bin}")
string(REGEX REPLACE "\\." "" __cuda_arch_ptx "${CUDA_ARCH_PTX}")
string(REGEX MATCHALL "[0-9()]+" __cuda_arch_bin "${__cuda_arch_bin}")
string(REGEX MATCHALL "[0-9]+" __cuda_arch_ptx "${__cuda_arch_ptx}")
mshadow_list_unique(__cuda_arch_bin __cuda_arch_ptx)
set(__nvcc_flags "")
set(__nvcc_archs_readable "")
# Tell NVCC to add binaries for the specified GPUs
foreach(__arch ${__cuda_arch_bin})
if(__arch MATCHES "([0-9]+)\\(([0-9]+)\\)")
# User explicitly specified PTX for the concrete BIN
list(APPEND __nvcc_flags -gencode arch=compute_${CMAKE_MATCH_2},code=sm_${CMAKE_MATCH_1})
list(APPEND __nvcc_archs_readable sm_${CMAKE_MATCH_1})
else()
# User didn't explicitly specify PTX for the concrete BIN, we assume PTX=BIN
list(APPEND __nvcc_flags -gencode arch=compute_${__arch},code=sm_${__arch})
list(APPEND __nvcc_archs_readable sm_${__arch})
endif()
endforeach()
# Tell NVCC to add PTX intermediate code for the specified architectures
foreach(__arch ${__cuda_arch_ptx})
list(APPEND __nvcc_flags -gencode arch=compute_${__arch},code=compute_${__arch})
list(APPEND __nvcc_archs_readable compute_${__arch})
endforeach()
string(REPLACE ";" " " __nvcc_archs_readable "${__nvcc_archs_readable}")
set(${out_variable} ${__nvcc_flags} PARENT_SCOPE)
set(${out_variable}_readable ${__nvcc_archs_readable} PARENT_SCOPE)
endfunction()
################################################################################################
# Short command for cuda comnpilation
# Usage:
# dgl_cuda_compile(<objlist_variable> <cuda_files>)
macro(dgl_cuda_compile objlist_variable)
foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
set(${var}_backup_in_cuda_compile_ "${${var}}")
# we remove /EHa as it generates warnings under windows
string(REPLACE "/EHa" "" ${var} "${${var}}")
endforeach()
if(UNIX OR APPLE)
list(APPEND CUDA_NVCC_FLAGS -Xcompiler -fPIC)
endif()
if(APPLE)
list(APPEND CUDA_NVCC_FLAGS -Xcompiler -Wno-unused-function)
endif()
set(CUDA_NVCC_FLAGS_DEBUG "${CUDA_NVCC_FLAGS_DEBUG} -G")
if(MSVC)
# disable noisy warnings:
# 4819: The file contains a character that cannot be represented in the current code page (number).
list(APPEND CUDA_NVCC_FLAGS -Xcompiler "/wd4819")
foreach(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
endforeach(flag_var)
endif()
# If the build system is a container, make sure the nvcc intermediate files
# go into the build output area rather than in /tmp, which may run out of space
if(IS_CONTAINER_BUILD)
set(CUDA_NVCC_INTERMEDIATE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
message(STATUS "Container build enabled, so nvcc intermediate files in: ${CUDA_NVCC_INTERMEDIATE_DIR}")
list(APPEND CUDA_NVCC_FLAGS "--keep --keep-dir ${CUDA_NVCC_INTERMEDIATE_DIR}")
endif()
cuda_compile(cuda_objcs ${ARGN})
foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
set(${var} "${${var}_backup_in_cuda_compile_}")
unset(${var}_backup_in_cuda_compile_)
endforeach()
set(${objlist_variable} ${cuda_objcs})
endmacro()
################################################################################################
# Config cuda compilation.
# Usage:
# dgl_config_cuda(<dgl_cuda_src>)
macro(dgl_config_cuda out_variable)
if(NOT CUDA_FOUND)
message(FATAL_ERROR "Cannot find CUDA.")
endif()
# always set the includedir when cuda is available
# avoid global retrigger of cmake
include_directories(${CUDA_INCLUDE_DIRS})
add_definitions(-DDGL_USE_CUDA)
file(GLOB_RECURSE DGL_CUDA_SRC
src/kernel/cuda/*.cc
src/kernel/cuda/*.cu
src/runtime/cuda/*.cc
)
dgl_select_nvcc_arch_flags(NVCC_FLAGS_ARCH)
string(REPLACE ";" " " NVCC_FLAGS_ARCH "${NVCC_FLAGS_ARCH}")
set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_ARCH})
# for lambda support in moderngpu
set(NVCC_FLAGS_EXTRA "${NVCC_FLAGS_EXTRA} --expt-extended-lambda")
# suppress deprecated warning in moderngpu
set(NVCC_FLAGS_EXTRA "${NVCC_FLAGS_EXTRA} -Wno-deprecated-declarations")
message(STATUS "NVCC extra flags: ${NVCC_FLAGS_EXTRA}")
set(CUDA_NVCC_FLAGS "${CUDA_NVCC_FLAGS} ${NVCC_FLAGS_EXTRA}")
list(APPEND CMAKE_CUDA_FLAGS "${NVCC_FLAGS_EXTRA}")
list(APPEND DGL_LINKER_LIBS
${CUDA_CUDA_LIBRARY} ${CUDA_CUDART_LIBRARY}
${CUDA_CUBLAS_LIBRARIES} ${CUDA_cusparse_LIBRARY})
set(${out_variable} ${DGL_CUDA_SRC})
endmacro()