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add suport for openacc in both build systems
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‎CMakeLists.txt‎

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@@ -56,6 +56,7 @@ option(32BIT "Build 32-bit (r4) FMS library" OFF)
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option(64BIT "Build 64-bit (r8) FMS library" OFF)
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option(FPIC "Build with position independent code" OFF)
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option(SHARED_LIBS "Build shared/dynamic libraries" OFF)
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option(OPENACC "Build FMS with OpenACC support" OFF)
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# Options for compiler definitions
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option(INTERNAL_FILE_NML "Enable compiler definition -DINTERNAL_FILE_NML" ON)
@@ -82,11 +83,15 @@ endif()
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find_package(MPI REQUIRED COMPONENTS C Fortran)
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find_package(NetCDF REQUIRED COMPONENTS C Fortran)
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# Check for the OpenMP library and set the required compile flags
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# Check compilers support for OpenMP and OpenACC directives, if requested
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if (OPENMP)
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find_package(OpenMP REQUIRED COMPONENTS C Fortran)
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endif()
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if (OPENACC)
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find_package(OpenACC REQUIRED COMPONENTS C Fortran)
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endif()
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if (WITH_YAML)
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find_package(PkgConfig REQUIRED)
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pkg_check_modules(YAML REQUIRED IMPORTED_TARGET "yaml-0.1")

‎LICENSE‎

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@@ -172,3 +172,41 @@
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defend, and hold each Contributor harmless for any liability
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incurred by, or claims asserted against, such Contributor by reason
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of your accepting any such warranty or additional liability.
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-------------------------------------------------------------------------
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APPENDIX: Third-party components
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-------------------------------------------------------------------------
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This project includes the following third-party components:
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1. ACX_LANG_OPENACC_FLAG (located at: m4/acx_lang_openacc.m4)
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Copyright (c) 2018-2024, MPI-M
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Author: Sergey Kosukhin <sergey.kosukhin@mpimet.mpg.de>
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SPDX-License-Identifier: BSD-3-Clause
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of [Original Author/Organization Name] nor the names
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of its contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.

‎configure.ac‎

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Original file line numberDiff line numberDiff line change
@@ -237,6 +237,21 @@ AC_CHECK_FUNCS([sched_getaffinity], [], [])
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# Check if the compiler needs special OpenMP flags
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AC_OPENMP()
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# Check if building with OpenACC support. Default is 'no'
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AC_ARG_ENABLE([openacc],
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[AS_HELP_STRING([--enable-openacc],
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[Builds with support for OpenACC directives. (default no)])])
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AS_IF([test ${enable_openacc:-no} = yes],
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[enable_openacc=yes],
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[enable_openacc=no])
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# If openacc support enabled, test for correct flags
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AS_IF([test ${enable_openacc} = yes],
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[ACX_LANG_OPENACC_FLAG(
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[AS_VAR_APPEND([CFLAGS], [" $acx_cv_c_openacc_flag"])], []
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)])
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AC_LANG_POP(C)
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# Fortran specific checks
@@ -306,6 +321,15 @@ GX_FC_INTERNAL_FILE_NML()
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# Check if the compiler needs special OpenMP flags
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AC_OPENMP()
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# need to set preprocessor for openacc check below
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AC_FC_PP_SRCEXT([F90])
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# Check for openacc fortran flags
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AS_IF([test ${enable_openacc} = yes],
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[ACX_LANG_OPENACC_FLAG(
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[AS_VAR_APPEND([FCFLAGS], [" $acx_cv_fc_openacc_flag"])], []
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)])
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AC_LANG_POP(Fortran)
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# We passed all the tests. Set the required defines.

‎m4/acx_lang_openacc.m4‎

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# Copyright (c) 2018-2024, MPI-M
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#
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# Author: Sergey Kosukhin <sergey.kosukhin@mpimet.mpg.de>
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# ACX_LANG_OPENACC_FLAG([ACTION-IF-SUCCESS],
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# [ACTION-IF-FAILURE = FAILURE])
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# -----------------------------------------------------------------------------
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# Finds the compiler flag needed to enable OpenACC support. The result is
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# either "unknown", or the actual compiler flag required to enable OpenACC
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# support, which may be an empty string.
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#
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# Known flags:
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# GNU: -fopenacc
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# Cray: -hacc
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# Nvidia: -acc
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#
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# If successful, runs ACTION-IF-SUCCESS, otherwise runs ACTION-IF-FAILURE
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# (defaults to failing with an error message).
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#
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# The flag is cached in the acx_cv_[]_AC_LANG_ABBREV[]_openacc_flag variable.
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#
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# Upon successful run, you can check for the version of the standard supported
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# by the compiler by expanding:
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# AS_VAR_APPEND([_AC_LANG_PREFIX[]FLAGS],
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# [" $acx_cv_[]_AC_LANG_ABBREV[]_openacc_flag"])
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# ACX_LANG_MACRO_CHECK_VALUE([_OPENACC])
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# and checking for the value of the
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# acx_cv_[]_AC_LANG_ABBREV[]_macro__OPENACC_value shell variable. The possible
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# (successful) values of the variable are dates, which map to the versions of
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# the standard in the following way:
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# 202111 3.2
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# 202011 3.1
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# 201911 3.0
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# 201811 2.7
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# 201711 2.6
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# 201510 2.5
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# 201308 2.0 (the corrected version)
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# 201306 2.0
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# 201111 1.0
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#
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AC_DEFUN([ACX_LANG_OPENACC_FLAG],
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[m4_pushdef([acx_cache_var], [acx_cv_[]_AC_LANG_ABBREV[]_openacc_flag])dnl
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AC_MSG_CHECKING([for _AC_LANG compiler flag needed to enable OpenACC dnl
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support])
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AC_CACHE_VAL([acx_cache_var],
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[acx_cache_var=unknown
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acx_save_[]_AC_LANG_PREFIX[]FLAGS=$[]_AC_LANG_PREFIX[]FLAGS
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AC_LANG_CONFTEST([_ACX_LANG_OPENACC])
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for acx_lang_openacc_flag in '' -fopenacc -hacc -acc; do
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_AC_LANG_PREFIX[]FLAGS="${acx_save_[]_AC_LANG_PREFIX[]FLAGS} dnl
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$acx_lang_openacc_flag"
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AC_LINK_IFELSE([], [acx_cache_var=$acx_lang_openacc_flag])
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test "x$acx_cache_var" != xunknown && break
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done
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rm -f conftest.$ac_ext
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_AC_LANG_PREFIX[]FLAGS=$acx_save_[]_AC_LANG_PREFIX[]FLAGS])
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AS_IF([test -n "$acx_cache_var"],
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[AC_MSG_RESULT([$acx_cache_var])],
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[AC_MSG_RESULT([none needed])])
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AS_VAR_IF([acx_cache_var], [unknown], [m4_default([$2],
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[AC_MSG_FAILURE([unable to detect _AC_LANG compiler flag needed to dnl
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enable OpenACC support])])], [$1])
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m4_popdef([acx_cache_var])])
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# _ACX_LANG_OPENACC()
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# -----------------------------------------------------------------------------
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# Expands into the source code of a program in the current language that is
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# compiled successfully only when OpenACC support is enabled for the current
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# compiler. By default, expands to m4_fatal with the message saying that
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# _AC_LANG is not supported.
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#
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m4_define([_ACX_LANG_OPENACC],
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[m4_ifdef([$0(]_AC_LANG[)],
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[m4_indir([$0(]_AC_LANG[)], $@)],
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[m4_fatal([the OpenACC test program is not defined for ]dnl
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_AC_LANG[ language])])])])
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# _ACX_LANG_OPENACC(C)()
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# -----------------------------------------------------------------------------
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# Implementation of _ACX_LANG_OPENACC for C language.
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#
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m4_define([_ACX_LANG_OPENACC(C)],
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[AC_LANG_PROGRAM([[#include <openacc.h>]],
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[[#ifndef _OPENACC
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choke me
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#endif
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return (int) acc_get_device_type()]])])
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# _ACX_LANG_OPENACC(C++)
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# -----------------------------------------------------------------------------
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# Implementation of _ACX_LANG_OPENACC for C++ language.
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#
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m4_copy([_ACX_LANG_OPENACC(C)], [_ACX_LANG_OPENACC(C++)])
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# _ACX_LANG_OPENACC(Fortran)()
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# -----------------------------------------------------------------------------
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# Implementation of _ACX_LANG_OPENACC for Fortran language.
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#
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# The implementation implies that the Fortran module should be available when
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# OpenACC is enabled.
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#
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m4_define([_ACX_LANG_OPENACC(Fortran)],
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[AC_PROVIDE_IFELSE([AC_FC_PP_SRCEXT], [],
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[m4_warn([syntax],
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[ACX_LANG_OPENACC_FLAG requires calling the Fortran compiler with ]dnl
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[a preprocessor but no call to AC_FC_PP_SRCEXT is detected])])dnl
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AC_LANG_PROGRAM([],
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[[#ifndef _OPENACC
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choke me
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#endif
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use openacc, only : acc_get_device_type
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implicit none
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integer :: t
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t = acc_get_device_type()]])])
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