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openmpi/config/ompi_check_mx.m4
2006-05-31 06:29:16 +00:00

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# -*- shell-script -*-
#
# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
# University Research and Technology
# Corporation. All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
# University of Stuttgart. All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
# All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
AC_DEFUN([_OMPI_CHECK_MX_REGISTER_CALLBACK],[
#
# Check if the MX library provide the mx_register_unexp_callback function.
# With this function, OMPI can avoid having a double matching logic
# (one on the MX library and one on OMPI) by registering our own matching
# function.
AC_MSG_CHECKING([for a MX version with mx_register_match_callback])
AC_TRY_LINK([#include <myriexpress.h>],
[mx_register_unexp_callback(0, 0, 0);],
[mx_provide_match_callback="yes"],
[mx_provide_match_callback="no"])
AC_MSG_RESULT([$mx_provide_match_callback])
AS_IF([test x"$mx_provide_match_callback" = "xyes"],
[AC_DEFINE_UNQUOTED([OMPI_MCA_MX_HAVE_MATCH_CALLBACK], [1],
[MX define a match callback])
$2],
[$3])
unset mx_provide_match_callback
])
AC_DEFUN([_OMPI_CHECK_MX_CONFIG],[
#
# See if we have MX_API. OpenMPI require a MX version bigger than
# the first MX relase (0x300)
#
# restored at end of OMPI_CHECK_MX
CPPFLAGS="$ompi_check_mx_$1_save_CPPFLAGS $$1_CPPFLAGS"
LDFLAGS="$ompi_check_mx_$1_save_LDFLAGS $$1_LDFLAGS"
LIBS="$ompi_check_mx_$1_save_LIBS $$1_LIBS"
AC_MSG_CHECKING([for MX version 1.0 or later])
AC_TRY_COMPILE([#include <myriexpress.h>],
[#if MX_API < 0x300
#error "Version less than 0x300"
#endif],
[have_recent_api="yes"],
[have_recent_api="no"])
AC_MSG_RESULT([$have_recent_api])
AC_MSG_CHECKING(for MX_API)
AS_IF([test x"$have_recent_api" = "xyes"],
[AC_DEFINE_UNQUOTED([OMPI_MCA_]m4_translit([$1], [a-z], [A-Z])[_API_VERSION], $mx_api_ver,
[Version of the MX API to use])
unset mx_api_ver have_mx_api_ver_msg found val msg
$2],
[$3])
AC_MSG_RESULT([$mx_api_ver])
])dnl
# OMPI_CHECK_MX(prefix, [action-if-found], [action-if-not-found])
# --------------------------------------------------------
# check if MX support can be found. sets prefix_{CPPFLAGS,
# LDFLAGS, LIBS} as needed and runs action-if-found if there is
# support, otherwise executes action-if-not-found
AC_DEFUN([OMPI_CHECK_MX],[
AC_ARG_WITH([mx],
[AC_HELP_STRING([--with-mx(=DIR)],
[Build MX (Myrinet Express) support, searching for libraries in DIR])])
AC_ARG_WITH([mx-libdir],
[AC_HELP_STRING([--with-mx-libdir=DIR],
[Search for MX (Myrinet Express) libraries in DIR/lib and DIR/lib64
in addition to other search paths])])
ompi_check_mx_$1_save_CPPFLAGS="$CPPFLAGS"
ompi_check_mx_$1_save_LDFLAGS="$LDFLAGS"
ompi_check_mx_$1_save_LIBS="$LIBS"
AS_IF([test "$with_mx" != "no"],
[AS_IF([test ! -z "$with_mx" -a "$with_mx" != "yes"],
[ompi_check_mx_dir="$with_mx"])
AS_IF([test ! -z "$with_mx_libdir" -a "$with_mx_libdir" != "yes"],
[ompi_check_mx_libdir="$with_mx_libdir"])
OMPI_CHECK_PACKAGE([$1],
[myriexpress.h],
[myriexpress],
[mx_finalize],
[],
[$ompi_check_mx_dir],
[$ompi_check_mx_libdir],
[ompi_check_mx_happy="yes"],
[ompi_check_mx_happy="no"])],
[ompi_check_mx_happy="no"])
AS_IF([test "$ompi_check_mx_happy" = "yes"],
[_OMPI_CHECK_MX_CONFIG($1, [ompi_check_mx_happy="yes"],
[ompi_check_mx_happy="no"])])
AS_IF([test "$ompi_check_mx_happy" = "yes"],
[_OMPI_CHECK_MX_REGISTER_CALLBACK($1, [ompi_check_mx_register="yes"],
[ompi_check_mx_register="no"])])
CPPFLAGS="$ompi_check_mx_$1_save_CPPFLAGS"
LDFLAGS="$ompi_check_mx_$1_save_LDFLAGS"
LIBS="$ompi_check_mx_$1_save_LIBS"
AS_IF([test "$ompi_check_mx_happy" = "yes"],
[$2],
[AS_IF([test ! -z "$with_mx" -a "$with_mx" != "no"],
[AC_MSG_ERROR([MX support requested but not found. Aborting])])
$3])
])