File: ax_prog_cxx_mpi.m4

package info (click to toggle)
med-fichier 4.0.0%2Brepack-7
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 55,660 kB
  • sloc: cpp: 679,525; ansic: 72,977; python: 37,983; fortran: 12,925; sh: 6,821; f90: 5,531; makefile: 5,136; tcl: 216; xml: 173
file content (189 lines) | stat: -rw-r--r-- 6,695 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
# ===========================================================================
#      http://www.gnu.org/software/autoconf-archive/ax_prog_cxx_mpi.html
# ===========================================================================
#
# SYNOPSIS
#
#   AX_PROG_CXX_MPI([MPI-WANTED-TEST[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]])
#
# DESCRIPTION
#
#   This macro tries to find out how to compile C++ programs that use MPI
#   (Message Passing Interface), a standard API for parallel process
#   communication (see http://www-unix.mcs.anl.gov/mpi/).  The macro has to
#   be used instead of the standard macro AC_PROG_CXX and will replace the
#   standard variable CXX with the found compiler.
#
#   MPI-WANTED-TEST is used to test whether MPI is actually wanted by the
#   user. If MPI-WANTED_TEST is omitted or if it succeeds, the macro will
#   try to find out how to use MPI, if it fails, the macro will call
#   AC_PROG_CC to find a standard C compiler instead.
#
#   When MPI is found, ACTION-IF-FOUND will be executed, if MPI is not found
#   (or MPI-WANTED-TEST fails) ACTION-IF-NOT-FOUND is executed. If
#   ACTION-IF-FOUND is not set, the macro will define HAVE_MPI.
#
#   The following example demonstrates usage of the macro:
#
#     # If --with-mpi=auto is used, try to find MPI, but use standard C compiler if it is not found.
#     # If --with-mpi=yes is used, try to find MPI and fail if it isn't found.
#     # If --with-mpi=no is used, use a standard C compiler instead.
#     AC_ARG_WITH(mpi, [AS_HELP_STRING([--with-mpi],
#         [compile with MPI (parallelization) support. If none is found,
#         MPI is not used. Default: auto])
#     ],,[with_mpi=auto])
#
#     AX_PROG_CXX_MPI([test x"$with_mpi" != xno],[use_mpi=yes],[
#       use_mpi=no
#       if test x"$with_mpi" = xyes; then
#         AC_MSG_FAILURE([MPI compiler requested, but couldn't use MPI.])
#       else
#         AC_MSG_WARN([No MPI compiler found, won't use MPI.])
#       fi
#     ])
#
# LICENSE
#
#   Copyright (c) 2010,2011 Olaf Lenz <olenz@icp.uni-stuttgart.de>
#
#   This program 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.
#
#   This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
#   As a special exception, the respective Autoconf Macro's copyright owner
#   gives unlimited permission to copy, distribute and modify the configure
#   scripts that are the output of Autoconf when processing the Macro. You
#   need not follow the terms of the GNU General Public License when using
#   or distributing such scripts, even though portions of the text of the
#   Macro appear in them. The GNU General Public License (GPL) does govern
#   all other use of the material that constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the Autoconf
#   Macro released by the Autoconf Archive. When you make and distribute a
#   modified version of the Autoconf Macro, you may extend this special
#   exception to the GPL to apply to your modified version as well.

#serial 1

AC_DEFUN([AX_PROG_CXX_MPI], [
AC_PREREQ(2.50)
AC_BEFORE([$0],[AC_PROG_CXX])

# Check for compiler
# Needs to be split off into an extra macro to ensure right expansion
# order.
AC_REQUIRE([_AX_PROG_CXX_MPI],[_AX_PROG_CXX_MPI([$1])])

AS_IF([test x"$_ax_prog_cxx_mpi_mpi_wanted" = xno],
  [ _ax_prog_cxx_mpi_mpi_found=no ],
  [
    AC_LANG_PUSH([C++])

    # test whether MPI::Init is available
    # We do not use AC_SEARCH_LIBS here, as it caches its outcome and
    # thus disallows corresponding calls in the other AX_PROG_*_MPI
    # macros.
    for lib in NONE mpi mpich; do
      save_LIBS=$LIBS
      if test x"$lib" = xNONE; then
        AC_MSG_CHECKING([for function MPI::Init])
      else
        AC_MSG_CHECKING([for function MPI::Init in -l$lib])
        LIBS="-l$lib $LIBS"
      fi
      AC_LINK_IFELSE([
        AC_LANG_PROGRAM([
namespace MPI {
char Init();
};
using MPI::Init;],[MPI::Init;])],
        [ _ax_prog_cxx_mpi_mpi_found=yes ],
        [ _ax_prog_cxx_mpi_mpi_found=no ])
      AC_MSG_RESULT($_ax_prog_cxx_mpi_mpi_found)
      if test "x$_ax_prog_cxx_mpi_mpi_found" = "xyes"; then
        break;
      fi
      LIBS=$save_LIBS
    done

    # Check for header
    AS_IF([test x"$_ax_prog_cxx_mpi_mpi_found" = xyes], [
      AC_MSG_CHECKING([for mpi.h])
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <mpi.h>])],
        [ AC_MSG_RESULT(yes)],
        [ AC_MSG_RESULT(no)
         _ax_prog_cxx_mpi_mpi_found=no
      ])
    ])
    AC_LANG_POP([C++])
])

# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
AS_IF([test x"$_ax_prog_cxx_mpi_mpi_found" = xyes], [
        ifelse([$2],,[AC_DEFINE(HAVE_MPI,1,[Define if you have the MPI library.])],[$2])
        :
],[
        $3
        :
])

])dnl AX_PROG_CXX_MPI

dnl _AX_PROG_CXX_MPI is an internal macro required by AX_PROG_CXX_MPI.
dnl To ensure the right expansion order, the main function AX_PROG_CXX_MPI
dnl has to be split into two parts.
dnl
dnl Known MPI C++ compilers:
dnl  mpic++
dnl  mpicxx
dnl  mpiCC
dnl  sxmpic++     NEC SX
dnl  hcp
dnl  mpxlC_r
dnl  mpxlC
dnl  mpixlcxx_r
dnl  mpixlcxx
dnl  mpg++
dnl  mpc++
dnl  mpCC
dnl  cmpic++
dnl  mpiFCC       Fujitsu
dnl  CC
dnl
AC_DEFUN([__AX_PROG_CXX_MPI], [
  AC_ARG_VAR(MPICXX,[MPI C++ compiler command])
  ifelse([$1],,[_ax_prog_cxx_mpi_mpi_wanted=yes],[
    AC_MSG_CHECKING([whether to compile using MPI])
    if $1; then
      _ax_prog_cxx_mpi_mpi_wanted=yes
    else
      _ax_prog_cxx_mpi_mpi_wanted=no
    fi
    AC_MSG_RESULT($_ax_prog_cxx_mpi_mpi_wanted)
  ])
  if test x"$_ax_prog_cxx_mpi_mpi_wanted" = xyes; then
    if test -z "$CXX" && test -n "$MPICXX"; then
      CXX="$MPICXX"
    elif  test -z "$CXX"; then
      AC_CHECK_TOOLS([CXX], [mpic++ mpicxx mpiCC sxmpic++ hcp mpxlC_r mpxlC mpixlcxx_r mpixlcxx mpg++ mpc++ mpCC cmpic++ mpiFCC CCicpc pgCC pathCC sxc++ xlC_r xlC bgxlC_r bgxlC openCC sunCC crayCC g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC])
    fi
  fi
])dnl _AX_PROG_CXX_MPI

AC_DEFUN([_AX_PROG_CXX_MPI], [
  AC_REQUIRE([__AX_PROG_CXX_MPI],[__AX_PROG_CXX_MPI([$1])])
dnl   echo "---------CXX 3-----------------------"
  AC_PROG_CXX


dnl   echo "---------CXX 4-----------------------"
])