285 lines
9.7 KiB
CMake
285 lines
9.7 KiB
CMake
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
||
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
||
|
|
|
||
|
|
#[=======================================================================[.rst:
|
||
|
|
FindOpenACC
|
||
|
|
-----------
|
||
|
|
|
||
|
|
Detect OpenACC support by the compiler.
|
||
|
|
|
||
|
|
This module can be used to detect OpenACC support in a compiler.
|
||
|
|
If the compiler supports OpenACC, the flags required to compile with
|
||
|
|
OpenACC support are returned in variables for the different languages.
|
||
|
|
Currently, only PGI, GNU and Cray compilers are supported.
|
||
|
|
|
||
|
|
Variables
|
||
|
|
^^^^^^^^^
|
||
|
|
|
||
|
|
This module will set the following variables per language in your
|
||
|
|
project, where ``<lang>`` is one of C, CXX, or Fortran:
|
||
|
|
|
||
|
|
``OpenACC_<lang>_FOUND``
|
||
|
|
Variable indicating if OpenACC support for ``<lang>`` was detected.
|
||
|
|
``OpenACC_<lang>_FLAGS``
|
||
|
|
OpenACC compiler flags for ``<lang>``, separated by spaces.
|
||
|
|
``OpenACC_<lang>_OPTIONS``
|
||
|
|
OpenACC compiler flags for ``<lang>``, as a list. Suitable for usage
|
||
|
|
with target_compile_options or target_link_options.
|
||
|
|
|
||
|
|
Additionally, the module provides :prop_tgt:`IMPORTED` targets:
|
||
|
|
|
||
|
|
``OpenACC::OpenACC_<lang>``
|
||
|
|
Target for using OpenACC from ``<lang>``.
|
||
|
|
|
||
|
|
The module will also try to provide the OpenACC version variables:
|
||
|
|
|
||
|
|
``OpenACC_<lang>_SPEC_DATE``
|
||
|
|
Date of the OpenACC specification implemented by the ``<lang>`` compiler.
|
||
|
|
``OpenACC_<lang>_VERSION_MAJOR``
|
||
|
|
Major version of OpenACC implemented by the ``<lang>`` compiler.
|
||
|
|
``OpenACC_<lang>_VERSION_MINOR``
|
||
|
|
Minor version of OpenACC implemented by the ``<lang>`` compiler.
|
||
|
|
``OpenACC_<lang>_VERSION``
|
||
|
|
OpenACC version implemented by the ``<lang>`` compiler.
|
||
|
|
|
||
|
|
The specification date is formatted as given in the OpenACC standard:
|
||
|
|
``yyyymm`` where ``yyyy`` and ``mm`` represents the year and month of
|
||
|
|
the OpenACC specification implemented by the ``<lang>`` compiler.
|
||
|
|
|
||
|
|
Input Variables
|
||
|
|
^^^^^^^^^^^^^^^
|
||
|
|
|
||
|
|
``OpenACC_ACCEL_TARGET=<target>``
|
||
|
|
If set, will the correct target accelerator flag set to the <target> will
|
||
|
|
be returned with OpenACC_<lang>_FLAGS.
|
||
|
|
#]=======================================================================]
|
||
|
|
|
||
|
|
set(OpenACC_C_CXX_TEST_SOURCE
|
||
|
|
"
|
||
|
|
int main(){
|
||
|
|
#ifdef _OPENACC
|
||
|
|
return 0;
|
||
|
|
#else
|
||
|
|
breaks_on_purpose
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
"
|
||
|
|
)
|
||
|
|
set(OpenACC_Fortran_TEST_SOURCE
|
||
|
|
"
|
||
|
|
program test
|
||
|
|
#ifndef _OPENACC
|
||
|
|
breaks_on_purpose
|
||
|
|
#endif
|
||
|
|
endprogram test
|
||
|
|
"
|
||
|
|
)
|
||
|
|
set(OpenACC_C_CXX_CHECK_VERSION_SOURCE
|
||
|
|
"
|
||
|
|
#include <stdio.h>
|
||
|
|
const char accver_str[] = { 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'A',
|
||
|
|
'C', 'C', '-', 'd', 'a', 't', 'e', '[',
|
||
|
|
('0' + ((_OPENACC/100000)%10)),
|
||
|
|
('0' + ((_OPENACC/10000)%10)),
|
||
|
|
('0' + ((_OPENACC/1000)%10)),
|
||
|
|
('0' + ((_OPENACC/100)%10)),
|
||
|
|
('0' + ((_OPENACC/10)%10)),
|
||
|
|
('0' + ((_OPENACC/1)%10)),
|
||
|
|
']', '\\0' };
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
puts(accver_str);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
")
|
||
|
|
set(OpenACC_Fortran_CHECK_VERSION_SOURCE
|
||
|
|
"
|
||
|
|
program acc_ver
|
||
|
|
implicit none
|
||
|
|
integer, parameter :: zero = ichar('0')
|
||
|
|
character, dimension(25), parameter :: accver_str =&
|
||
|
|
(/ 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'A', 'C', 'C', '-',&
|
||
|
|
'd', 'a', 't', 'e', '[',&
|
||
|
|
char(zero + mod(_OPENACC/100000, 10)),&
|
||
|
|
char(zero + mod(_OPENACC/10000, 10)),&
|
||
|
|
char(zero + mod(_OPENACC/1000, 10)),&
|
||
|
|
char(zero + mod(_OPENACC/100, 10)),&
|
||
|
|
char(zero + mod(_OPENACC/10, 10)),&
|
||
|
|
char(zero + mod(_OPENACC/1, 10)), ']' /)
|
||
|
|
print *, accver_str
|
||
|
|
end program acc_ver
|
||
|
|
"
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_WRITE_SOURCE_FILE LANG SRC_FILE_CONTENT_VAR SRC_FILE_NAME SRC_FILE_FULLPATH)
|
||
|
|
set(WORK_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenACC)
|
||
|
|
if("${LANG}" STREQUAL "C")
|
||
|
|
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.c")
|
||
|
|
file(WRITE "${SRC_FILE}" "${OpenACC_C_CXX_${SRC_FILE_CONTENT_VAR}}")
|
||
|
|
elseif("${LANG}" STREQUAL "CXX")
|
||
|
|
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.cpp")
|
||
|
|
file(WRITE "${SRC_FILE}" "${OpenACC_C_CXX_${SRC_FILE_CONTENT_VAR}}")
|
||
|
|
elseif("${LANG}" STREQUAL "Fortran")
|
||
|
|
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.F90")
|
||
|
|
file(WRITE "${SRC_FILE}_in" "${OpenACC_Fortran_${SRC_FILE_CONTENT_VAR}}")
|
||
|
|
configure_file("${SRC_FILE}_in" "${SRC_FILE}" @ONLY)
|
||
|
|
endif()
|
||
|
|
set(${SRC_FILE_FULLPATH} "${SRC_FILE}" PARENT_SCOPE)
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_GET_FLAGS_CANDIDATE LANG FLAG_VAR)
|
||
|
|
set(ACC_FLAG_PGI "-acc")
|
||
|
|
set(ACC_FLAG_GNU "-fopenacc")
|
||
|
|
set(ACC_FLAG_Cray "-h acc")
|
||
|
|
|
||
|
|
if(DEFINED ACC_FLAG_${CMAKE_${LANG}_COMPILER_ID})
|
||
|
|
set("${FLAG_VAR}" "${ACC_FLAG_${CMAKE_${LANG}_COMPILER_ID}}" PARENT_SCOPE)
|
||
|
|
else()
|
||
|
|
# Fall back to a few common flags.
|
||
|
|
set("${FLAG_VAR}" ${ACC_FLAG_GNU} ${ACC_FLAG_PGI})
|
||
|
|
endif()
|
||
|
|
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_GET_ACCEL_TARGET_FLAG LANG TARGET FLAG_VAR)
|
||
|
|
# Find target accelerator flags.
|
||
|
|
set(ACC_TARGET_FLAG_PGI "-ta")
|
||
|
|
if(DEFINED ACC_TARGET_FLAG_${CMAKE_${LANG}_COMPILER_ID})
|
||
|
|
set("${FLAG_VAR}" "${ACC_TARGET_FLAG_${CMAKE_${LANG}_COMPILER_ID}}=${TARGET}" PARENT_SCOPE)
|
||
|
|
endif()
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_GET_VERBOSE_FLAG LANG FLAG_VAR)
|
||
|
|
# Find compiler's verbose flag for OpenACC.
|
||
|
|
set(ACC_VERBOSE_FLAG_PGI "-Minfo=accel")
|
||
|
|
if(DEFINED ACC_VERBOSE_FLAG_${CMAKE_${LANG}_COMPILER_ID})
|
||
|
|
set("${FLAG_VAR}" "${ACC_VERBOSE_FLAG_${CMAKE_${LANG}_COMPILER_ID}}" PARENT_SCOPE)
|
||
|
|
endif()
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_GET_FLAGS LANG FLAG_VAR)
|
||
|
|
set(FLAG_CANDIDATES "")
|
||
|
|
_OPENACC_GET_FLAGS_CANDIDATE("${LANG}" FLAG_CANDIDATES)
|
||
|
|
_OPENACC_WRITE_SOURCE_FILE("${LANG}" "TEST_SOURCE" OpenACCTryFlag _OPENACC_TEST_SRC)
|
||
|
|
|
||
|
|
foreach(FLAG IN LISTS FLAG_CANDIDATES)
|
||
|
|
try_compile(OpenACC_FLAG_TEST_RESULT ${CMAKE_BINARY_DIR} ${_OPENACC_TEST_SRC}
|
||
|
|
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${FLAG}"
|
||
|
|
OUTPUT_VARIABLE OpenACC_TRY_COMPILE_OUTPUT
|
||
|
|
)
|
||
|
|
if(OpenACC_FLAG_TEST_RESULT)
|
||
|
|
set("${FLAG_VAR}" "${FLAG}")
|
||
|
|
if(DEFINED OpenACC_ACCEL_TARGET)
|
||
|
|
_OPENACC_GET_ACCEL_TARGET_FLAG("${LANG}" "${OpenACC_ACCEL_TARGET}" TARGET_FLAG)
|
||
|
|
string(APPEND "${FLAG_VAR}" " ${TARGET_FLAG}")
|
||
|
|
endif()
|
||
|
|
|
||
|
|
if(CMAKE_VERBOSE_MAKEFILE)
|
||
|
|
# -Minfo=accel prints out OpenACC's messages on optimizations.
|
||
|
|
_OPENACC_GET_VERBOSE_FLAG("${LANG}" OpenACC_VERBOSE_FLAG)
|
||
|
|
string(APPEND "${FLAG_VAR}" " ${OpenACC_VERBOSE_FLAG}")
|
||
|
|
endif()
|
||
|
|
set("${FLAG_VAR}" "${${FLAG_VAR}}" PARENT_SCOPE)
|
||
|
|
break()
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
function(_OPENACC_GET_SPEC_DATE LANG SPEC_DATE)
|
||
|
|
_OPENACC_WRITE_SOURCE_FILE("${LANG}" "CHECK_VERSION_SOURCE" OpenACCCheckVersion _OPENACC_TEST_SRC)
|
||
|
|
|
||
|
|
set(BIN_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenACC/accver_${LANG}.bin")
|
||
|
|
try_compile(OpenACC_SPECTEST_${LANG} "${CMAKE_BINARY_DIR}" "${_OPENACC_TEST_SRC}"
|
||
|
|
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OpenACC_${LANG}_FLAGS}"
|
||
|
|
COPY_FILE ${BIN_FILE}
|
||
|
|
OUTPUT_VARIABLE OUTPUT)
|
||
|
|
|
||
|
|
if(${OpenACC_SPECTEST_${LANG}})
|
||
|
|
file(STRINGS ${BIN_FILE} specstr LIMIT_COUNT 1 REGEX "INFO:OpenACC-date")
|
||
|
|
set(regex_spec_date ".*INFO:OpenACC-date\\[0*([^]]*)\\].*")
|
||
|
|
if("${specstr}" MATCHES "${regex_spec_date}")
|
||
|
|
set(${SPEC_DATE} "${CMAKE_MATCH_1}" PARENT_SCOPE)
|
||
|
|
endif()
|
||
|
|
endif()
|
||
|
|
endfunction()
|
||
|
|
|
||
|
|
|
||
|
|
macro(_OPENACC_SET_VERSION_BY_SPEC_DATE LANG)
|
||
|
|
set(OpenACC_SPEC_DATE_MAP
|
||
|
|
# Combined versions, 2.5 onwards
|
||
|
|
"201510=2.5"
|
||
|
|
# 2013 08 is the corrected version.
|
||
|
|
"201308=2.0"
|
||
|
|
"201306=2.0"
|
||
|
|
"201111=1.0"
|
||
|
|
)
|
||
|
|
|
||
|
|
string(REGEX MATCHALL "${OpenACC_${LANG}_SPEC_DATE}=([0-9]+)\\.([0-9]+)" _version_match "${OpenACC_SPEC_DATE_MAP}")
|
||
|
|
if(NOT _version_match STREQUAL "")
|
||
|
|
set(OpenACC_${LANG}_VERSION_MAJOR ${CMAKE_MATCH_1})
|
||
|
|
set(OpenACC_${LANG}_VERSION_MINOR ${CMAKE_MATCH_2})
|
||
|
|
set(OpenACC_${LANG}_VERSION "${OpenACC_${LANG}_VERSION_MAJOR}.${OpenACC_${LANG}_VERSION_MINOR}")
|
||
|
|
else()
|
||
|
|
unset(OpenACC_${LANG}_VERSION_MAJOR)
|
||
|
|
unset(OpenACC_${LANG}_VERSION_MINOR)
|
||
|
|
unset(OpenACC_${LANG}_VERSION)
|
||
|
|
endif()
|
||
|
|
unset(_version_match)
|
||
|
|
unset(OpenACC_SPEC_DATE_MAP)
|
||
|
|
endmacro()
|
||
|
|
|
||
|
|
|
||
|
|
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
|
||
|
|
foreach (LANG IN ITEMS C CXX Fortran)
|
||
|
|
if(CMAKE_${LANG}_COMPILER_LOADED)
|
||
|
|
set(OpenACC_${LANG}_FIND_QUIETLY ${OpenACC_FIND_QUIETLY})
|
||
|
|
set(OpenACC_${LANG}_FIND_REQUIRED ${OpenACC_FIND_REQUIRED})
|
||
|
|
set(OpenACC_${LANG}_FIND_VERSION ${OpenACC_FIND_VERSION})
|
||
|
|
set(OpenACC_${LANG}_FIND_VERSION_EXACT ${OpenACC_FIND_VERSION_EXACT})
|
||
|
|
|
||
|
|
if(NOT DEFINED OpenACC_${LANG}_FLAGS)
|
||
|
|
_OPENACC_GET_FLAGS("${LANG}" OpenACC_${LANG}_FLAGS)
|
||
|
|
endif()
|
||
|
|
if(NOT DEFINED OpenACC_${LANG}_OPTIONS)
|
||
|
|
separate_arguments(OpenACC_${LANG}_OPTIONS NATIVE_COMMAND "${OpenACC_${LANG}_FLAGS}")
|
||
|
|
endif()
|
||
|
|
_OPENACC_GET_SPEC_DATE("${LANG}" OpenACC_${LANG}_SPEC_DATE)
|
||
|
|
_OPENACC_SET_VERSION_BY_SPEC_DATE("${LANG}")
|
||
|
|
|
||
|
|
find_package_handle_standard_args(OpenACC_${LANG}
|
||
|
|
NAME_MISMATCHED
|
||
|
|
REQUIRED_VARS OpenACC_${LANG}_FLAGS
|
||
|
|
VERSION_VAR OpenACC_${LANG}_VERSION
|
||
|
|
)
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
foreach (LANG IN ITEMS C CXX Fortran)
|
||
|
|
if(OpenACC_${LANG}_FOUND AND NOT TARGET OpenACC::OpenACC_${LANG})
|
||
|
|
add_library(OpenACC::OpenACC_${LANG} INTERFACE IMPORTED)
|
||
|
|
endif()
|
||
|
|
if(OpenACC_${LANG}_LIBRARIES)
|
||
|
|
set_property(TARGET OpenACC::OpenACC_${LANG} PROPERTY
|
||
|
|
INTERFACE_LINK_LIBRARIES "${OpenACC_${LANG}_LIBRARIES}")
|
||
|
|
endif()
|
||
|
|
if(OpenACC_${LANG}_FLAGS)
|
||
|
|
set_property(TARGET OpenACC::OpenACC_${LANG} PROPERTY
|
||
|
|
INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${OpenACC_${LANG}_OPTIONS}>")
|
||
|
|
set_property(TARGET OpenACC::OpenACC_${LANG} PROPERTY
|
||
|
|
INTERFACE_LINK_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${OpenACC_${LANG}_OPTIONS}>")
|
||
|
|
unset(_OpenACC_${LANG}_OPTIONS)
|
||
|
|
endif()
|
||
|
|
endforeach()
|
||
|
|
|
||
|
|
unset(OpenACC_C_CXX_TEST_SOURCE)
|
||
|
|
unset(OpenACC_Fortran_TEST_SOURCE)
|
||
|
|
unset(OpenACC_C_CXX_CHECK_VERSION_SOURCE)
|
||
|
|
unset(OpenACC_Fortran_CHECK_VERSION_SOURCE)
|