|
| 1 | +# =========================================================================== |
| 2 | +# https://www.gnu.org/software/autoconf-archive/ax_prog_cc_mpi.html |
| 3 | +# =========================================================================== |
| 4 | +# |
| 5 | +# SYNOPSIS |
| 6 | +# |
| 7 | +# AX_PROG_CC_MPI([MPI-WANTED-TEST[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]]) |
| 8 | +# |
| 9 | +# DESCRIPTION |
| 10 | +# |
| 11 | +# This macro tries to find out how to compile C programs that use MPI |
| 12 | +# (Message Passing Interface), a standard API for parallel process |
| 13 | +# communication (see http://www-unix.mcs.anl.gov/mpi/). The macro has to |
| 14 | +# be used instead of the standard macro AC_PROG_CC and will replace the |
| 15 | +# standard variable CC with the found compiler. |
| 16 | +# |
| 17 | +# MPI-WANTED-TEST is used to test whether MPI is actually wanted by the |
| 18 | +# user. If MPI-WANTED_TEST is omitted or if it succeeds, the macro will |
| 19 | +# try to find out how to use MPI, if it fails, the macro will call |
| 20 | +# AC_PROG_CC to find a standard C compiler instead. |
| 21 | +# |
| 22 | +# When MPI is found, ACTION-IF-FOUND will be executed, if MPI is not found |
| 23 | +# (or MPI-WANTED-TEST fails) ACTION-IF-NOT-FOUND is executed. If |
| 24 | +# ACTION-IF-FOUND is not set, the macro will define HAVE_MPI. |
| 25 | +# |
| 26 | +# The following example demonstrates usage of the macro: |
| 27 | +# |
| 28 | +# # If --with-mpi=auto is used, try to find MPI, but use standard C compiler if it is not found. |
| 29 | +# # If --with-mpi=yes is used, try to find MPI and fail if it isn't found. |
| 30 | +# # If --with-mpi=no is used, use a standard C compiler instead. |
| 31 | +# AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi], |
| 32 | +# [compile with MPI (parallelization) support. If none is found, |
| 33 | +# MPI is not used. Default: auto]) |
| 34 | +# ],,[with_mpi=auto]) |
| 35 | +# # |
| 36 | +# AX_PROG_CC_MPI([test x"$with_mpi" != xno],[use_mpi=yes],[ |
| 37 | +# use_mpi=no |
| 38 | +# if test x"$with_mpi" = xyes; then |
| 39 | +# AC_MSG_FAILURE([MPI compiler requested, but couldn't use MPI.]) |
| 40 | +# else |
| 41 | +# AC_MSG_WARN([No MPI compiler found, won't use MPI.]) |
| 42 | +# fi |
| 43 | +# ]) |
| 44 | +# |
| 45 | +# LICENSE |
| 46 | +# |
| 47 | +# Copyright (c) 2010,2011 Olaf Lenz <[email protected]> |
| 48 | +# |
| 49 | +# This program is free software: you can redistribute it and/or modify it |
| 50 | +# under the terms of the GNU General Public License as published by the |
| 51 | +# Free Software Foundation, either version 3 of the License, or (at your |
| 52 | +# option) any later version. |
| 53 | +# |
| 54 | +# This program is distributed in the hope that it will be useful, but |
| 55 | +# WITHOUT ANY WARRANTY; without even the implied warranty of |
| 56 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 57 | +# Public License for more details. |
| 58 | +# |
| 59 | +# You should have received a copy of the GNU General Public License along |
| 60 | +# with this program. If not, see <https://www.gnu.org/licenses/>. |
| 61 | +# |
| 62 | +# As a special exception, the respective Autoconf Macro's copyright owner |
| 63 | +# gives unlimited permission to copy, distribute and modify the configure |
| 64 | +# scripts that are the output of Autoconf when processing the Macro. You |
| 65 | +# need not follow the terms of the GNU General Public License when using |
| 66 | +# or distributing such scripts, even though portions of the text of the |
| 67 | +# Macro appear in them. The GNU General Public License (GPL) does govern |
| 68 | +# all other use of the material that constitutes the Autoconf Macro. |
| 69 | +# |
| 70 | +# This special exception to the GPL applies to versions of the Autoconf |
| 71 | +# Macro released by the Autoconf Archive. When you make and distribute a |
| 72 | +# modified version of the Autoconf Macro, you may extend this special |
| 73 | +# exception to the GPL to apply to your modified version as well. |
| 74 | + |
| 75 | +#serial 2 |
| 76 | + |
| 77 | +AC_DEFUN([AX_PROG_CC_MPI], [ |
| 78 | +AC_PREREQ(2.50) |
| 79 | +
|
| 80 | +# Check for compiler |
| 81 | +# Needs to be split off into an extra macro to ensure right expansion |
| 82 | +# order. |
| 83 | +AC_REQUIRE([_AX_PROG_CC_MPI],[_AX_PROG_CC_MPI([$1])]) |
| 84 | +
|
| 85 | +AS_IF([test x"$_ax_prog_cc_mpi_mpi_wanted" = xno], |
| 86 | + [ _ax_prog_cc_mpi_mpi_found=no ], |
| 87 | + [ |
| 88 | + AC_LANG_PUSH([C]) |
| 89 | + # test whether MPI_Init is available |
| 90 | + # We do not use AC_SEARCH_LIBS here, as it caches its outcome and |
| 91 | + # thus disallows corresponding calls in the other AX_PROG_*_MPI |
| 92 | + # macros. |
| 93 | + for lib in NONE mpi mpich; do |
| 94 | + save_LIBS=$LIBS |
| 95 | + if test x"$lib" = xNONE; then |
| 96 | + AC_MSG_CHECKING([for function MPI_Init]) |
| 97 | + else |
| 98 | + AC_MSG_CHECKING([for function MPI_Init in -l$lib]) |
| 99 | + LIBS="-l$lib $LIBS" |
| 100 | + fi |
| 101 | + AC_LINK_IFELSE([AC_LANG_CALL([],[MPI_Init])], |
| 102 | + [ _ax_prog_cc_mpi_mpi_found=yes ], |
| 103 | + [ _ax_prog_cc_mpi_mpi_found=no ]) |
| 104 | + AC_MSG_RESULT($_ax_prog_cc_mpi_mpi_found) |
| 105 | + if test "x$_ax_prog_cc_mpi_mpi_found" = "xyes"; then |
| 106 | + break; |
| 107 | + fi |
| 108 | + LIBS=$save_LIBS |
| 109 | + done |
| 110 | +
|
| 111 | + # Check for header |
| 112 | + AS_IF([test x"$_ax_prog_cc_mpi_mpi_found" = xyes], [ |
| 113 | + AC_MSG_CHECKING([for mpi.h]) |
| 114 | + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <mpi.h>])], |
| 115 | + [ AC_MSG_RESULT(yes)], |
| 116 | + [ AC_MSG_RESULT(no) |
| 117 | + _ax_prog_cc_mpi_mpi_found=no |
| 118 | + ]) |
| 119 | + ]) |
| 120 | + AC_LANG_POP([C]) |
| 121 | +]) |
| 122 | +
|
| 123 | +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: |
| 124 | +AS_IF([test x"$_ax_prog_cc_mpi_mpi_found" = xyes], [ |
| 125 | + ifelse([$2],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$2]) |
| 126 | + : |
| 127 | +],[ |
| 128 | + $3 |
| 129 | + : |
| 130 | +]) |
| 131 | +
|
| 132 | +])dnl AX_PROG_CC_MPI |
| 133 | + |
| 134 | +dnl _AX_PROG_CC_MPI is an internal macro required by AX_PROG_CC_MPI. |
| 135 | +dnl To ensure the right expansion order, the main function AX_PROG_CC_MPI |
| 136 | +dnl has to be split into two parts. |
| 137 | +dnl |
| 138 | +dnl Known MPI C compilers: |
| 139 | +dnl mpicc |
| 140 | +dnl mpixlc_r |
| 141 | +dnl mpixlc |
| 142 | +dnl hcc |
| 143 | +dnl mpxlc_r |
| 144 | +dnl mpxlc |
| 145 | +dnl sxmpicc NEC SX |
| 146 | +dnl mpifcc Fujitsu |
| 147 | +dnl mpgcc |
| 148 | +dnl mpcc |
| 149 | +dnl cmpicc |
| 150 | +dnl cc |
| 151 | +dnl |
| 152 | +AC_DEFUN([_AX_PROG_CC_MPI], [ |
| 153 | + AC_ARG_VAR(MPICC,[MPI C compiler command]) |
| 154 | + ifelse([$1],,[_ax_prog_cc_mpi_mpi_wanted=yes],[ |
| 155 | + AC_MSG_CHECKING([whether to compile using MPI]) |
| 156 | + if $1; then |
| 157 | + _ax_prog_cc_mpi_mpi_wanted=yes |
| 158 | + else |
| 159 | + _ax_prog_cc_mpi_mpi_wanted=no |
| 160 | + fi |
| 161 | + AC_MSG_RESULT($_ax_prog_cc_mpi_mpi_wanted) |
| 162 | + ]) |
| 163 | + if test x"$_ax_prog_cc_mpi_mpi_wanted" = xyes; then |
| 164 | + if test -z "$CC" && test -n "$MPICC"; then |
| 165 | + CC="$MPICC" |
| 166 | + else |
| 167 | + AC_CHECK_TOOLS([CC], [mpicc mpixlc_r mpixlc hcc mpxlc_r mpxlc sxmpicc mpifcc mpgcc mpcc cmpicc cc gcc]) |
| 168 | + fi |
| 169 | + fi |
| 170 | + AC_PROG_CC |
| 171 | +])dnl _AX_PROG_CC_MPI |
0 commit comments