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| # Copyright 2022 - David Minton, Carlisle Wishard, Jennifer Pouplin, Jake Elliott, & Dana Singh | ||
| # This file is part of Swiftest. | ||
| # Swiftest is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License | ||
| # as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. | ||
| # Swiftest is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty | ||
| # of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. | ||
| # You should have received a copy of the GNU General Public License along with Swiftest. | ||
| # If not, see: https://www.gnu.org/licenses. | ||
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| # - Finds Coarray support | ||
| # This module can be used to detect Coarray support in a compiler. | ||
| # If the compiler supports Coarray, the flags required to compile with | ||
| # coarray support are set. | ||
| # | ||
| # This module was modified from the standard FindOpenMP module to find Fortran | ||
| # flags. | ||
| # | ||
| # The following variables are set: | ||
| # Coarray_Fortran_FLAGS - flags to add to the Fortran compiler for Coarray | ||
| # support. In general, you must use these at both | ||
| # compile- and link-time. | ||
| # OMP_NUM_PROCS - the max number of processors available to Coarray | ||
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| #============================================================================= | ||
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| INCLUDE (${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake) | ||
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| STRING(TOUPPER "${CMAKE_BUILD_TYPE}" BT) | ||
| IF(BT STREQUAL "DEBUG") | ||
| SET (Coarray_Fortran_FLAG_CANDIDATES | ||
| #Intel | ||
| "-coarray=single" | ||
| #Intel windows | ||
| "/Qcoarray:single" | ||
| #Gnu | ||
| "-fcoarray=single" | ||
| #Empty, if compiler automatically accepts coarray | ||
| " " | ||
| ) | ||
| ELSE() | ||
| SET (Coarray_Fortran_FLAG_CANDIDATES | ||
| #Intel | ||
| "-coarray=distributed" | ||
| #Intel windows | ||
| "/Qcoarray:distributed" | ||
| #Gnu | ||
| "-fcoarray=lib -lcaf_mpi" | ||
| #Empty, if compiler automatically accepts coarray | ||
| " " | ||
| ) | ||
| ENDIF() | ||
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| IF (DEFINED Coarray_Fortran_FLAGS) | ||
| SET (Coarray_Fortran_FLAG_CANDIDATES) | ||
| ENDIF (DEFINED Coarray_Fortran_FLAGS) | ||
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| # check fortran compiler. also determine number of processors | ||
| FOREACH (FLAG ${Coarray_Fortran_FLAG_CANDIDATES}) | ||
| SET (SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") | ||
| SET (CMAKE_REQUIRED_FLAGS "${FLAG}") | ||
| UNSET (Coarray_FLAG_DETECTED CACHE) | ||
| MESSAGE (STATUS "Try Coarray Fortran flag = [${FLAG}]") | ||
| FILE (WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCoarray.f90" | ||
| " | ||
| program TestCoarray | ||
| integer, codimension[*] :: i | ||
| write(*,'(I2)',ADVANCE='NO') num_images() | ||
| end program TestCoarray | ||
| ") | ||
| SET (MACRO_CHECK_FUNCTION_DEFINITIONS | ||
| "-DCoarray_FLAG_DETECTED ${CMAKE_REQUIRED_FLAGS}") | ||
| TRY_RUN (Coarray_RUN_FAILED Coarray_FLAG_DETECTED ${CMAKE_BINARY_DIR} | ||
| ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCoarray.f90 | ||
| COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} | ||
| CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} | ||
| COMPILE_OUTPUT_VARIABLE OUTPUT | ||
| RUN_OUTPUT_VARIABLE OMP_NUM_PROCS_INTERNAL) | ||
| IF (Coarray_FLAG_DETECTED) | ||
| FILE (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log | ||
| "Determining if the Fortran compiler supports Coarray passed with " | ||
| "the following output:\n${OUTPUT}\n\n") | ||
| SET (Coarray_FLAG_DETECTED 1) | ||
| IF (Coarray_RUN_FAILED) | ||
| MESSAGE (FATAL_ERROR "Coarray found, but test code did not run") | ||
| ENDIF (Coarray_RUN_FAILED) | ||
| SET (Coarray_Fortran_FLAGS_INTERNAL "${FLAG}") | ||
| BREAK () | ||
| ELSE () | ||
| FILE (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log | ||
| "Determining if the Fortran compiler supports Coarray failed with " | ||
| "the following output:\n${OUTPUT}\n\n") | ||
| SET (Coarray_FLAG_DETECTED 0) | ||
| ENDIF (Coarray_FLAG_DETECTED) | ||
| ENDFOREACH (FLAG ${Coarray_Fortran_FLAG_CANDIDATES}) | ||
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| SET (Coarray_Fortran_FLAGS "${Coarray_Fortran_FLAGS_INTERNAL}" | ||
| CACHE STRING "Fortran compiler flags for Coarray parallization") | ||
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| # handle the standard arguments for FIND_PACKAGE | ||
| FIND_PACKAGE_HANDLE_STANDARD_ARGS (Coarray_Fortran DEFAULT_MSG | ||
| Coarray_Fortran_FLAGS) | ||
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| MARK_AS_ADVANCED(Coarray_Fortran_FLAGS) |
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