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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 (c) 2007 Cisco Systems, Inc. All rights reserved.
# Copyright (c) 2008-2011 Mellanox Technologies. All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
# MCA_btl_openib_POST_CONFIG([should_build])
# ------------------------------------------
AC_DEFUN([MCA_btl_openib_POST_CONFIG], [
AM_CONDITIONAL([MCA_btl_openib_have_xrc], [test $1 -eq 1 -a "x$btl_openib_have_xrc" = "x1"])
AM_CONDITIONAL([MCA_btl_openib_have_rdmacm], [test $1 -eq 1 -a "x$btl_openib_have_rdmacm" = "x1"])
AM_CONDITIONAL([MCA_btl_openib_have_dynamic_sl], [test $1 -eq 1 -a "x$btl_openib_have_opensm_devel" = "x1"])
])
# MCA_btl_openib_CONFIG([action-if-can-compile],
# [action-if-cant-compile])
# ------------------------------------------------
AC_DEFUN([MCA_btl_openib_CONFIG],[
OMPI_VAR_SCOPE_PUSH([cpcs have_threads])
cpcs="oob"
OMPI_CHECK_OPENIB([btl_openib],
[btl_openib_happy="yes"],
[btl_openib_happy="no"])
AS_IF([test "$btl_openib_happy" = "yes"],
[btl_openib_WRAPPER_EXTRA_LDFLAGS="$btl_openib_LDFLAGS"
btl_openib_WRAPPER_EXTRA_LIBS="$btl_openib_LIBS"
# With the new openib flags, look for ibv_fork_init
LDFLAGS_save="$LDFLAGS"
LIBS_save="$LIBS"
LDFLAGS="$LDFLAGS $btl_openib_LDFLAGS"
LIBS="$LIBS $btl_openib_LIBS"
AC_CHECK_FUNCS([ibv_fork_init])
LDFLAGS="$LDFLAGS_save"
LIBS="$LIBS_save"
$1],
[$2])
AC_MSG_CHECKING([for thread support (needed for rdmacm)])
have_threads=`echo $THREAD_TYPE | awk '{ print [$]1 }'`
if test "x$have_threads" = "x"; then
have_threads=none
fi
AC_MSG_RESULT([$have_threads])
AS_IF([test "$btl_openib_happy" = "yes"],
[if test "x$btl_openib_have_xrc" = "x1"; then
cpcs="$cpcs xoob"
fi
if test "x$btl_openib_have_rdmacm" = "x1" -a \
"$have_threads" != "none"; then
cpcs="$cpcs rdmacm"
fi
AC_MSG_CHECKING([which openib btl cpcs will be built])
AC_MSG_RESULT([$cpcs])])
# Enable openib device failover. It is disabled by default.
AC_MSG_CHECKING([whether openib failover is enabled])
AC_ARG_ENABLE([btl-openib-failover],
[AC_HELP_STRING([--enable-btl-openib-failover],
[enable openib BTL failover (default: disabled)])])
if test "$enable_btl_openib_failover" = "yes"; then
AC_MSG_RESULT([yes])
btl_openib_failover_enabled=1
else
AC_MSG_RESULT([no])
btl_openib_failover_enabled=0
fi
AC_DEFINE_UNQUOTED([BTL_OPENIB_FAILOVER_ENABLED], [$btl_openib_failover_enabled],
[enable openib BTL failover])
AM_CONDITIONAL([MCA_btl_openib_enable_failover], [test "x$btl_openib_failover_enabled" = "x1"])
# Check for __malloc_hook availability
AC_ARG_ENABLE(btl-openib-malloc-alignment,
AC_HELP_STRING([--enable-btl-openib-malloc-alignment], [Enable support for allocated memory alignment. Default: enabled if supported, disabled otherwise.]))
btl_openib_malloc_hooks_enabled=0
AS_IF([test "$enable_btl_openib_malloc_alignment" != "no"],
[AC_CHECK_HEADER([malloc.h],
[AC_CHECK_FUNC([__malloc_hook],
[AC_CHECK_FUNC([__realloc_hook],
[AC_CHECK_FUNC([__free_hook],
[btl_openib_malloc_hooks_enabled=1])])])])])
AS_IF([test "$enable_btl_openib_malloc_alignment" = "yes" -a "$btl_openib_malloc_hooks_enabled" = "0"],
[AC_MSG_ERROR([openib malloc alignment is requested but __malloc_hook is not available])])
AC_MSG_CHECKING([whether the openib BTL will use malloc hooks])
AS_IF([test "$btl_openib_malloc_hooks_enabled" = "0"],
[AC_MSG_RESULT([no])],
[AC_MSG_RESULT([yes])])
AC_DEFINE_UNQUOTED(BTL_OPENIB_MALLOC_HOOKS_ENABLED, [$btl_openib_malloc_hooks_enabled],
[Whether the openib BTL malloc hooks are enabled])
# substitute in the things needed to build openib
AC_SUBST([btl_openib_CFLAGS])
AC_SUBST([btl_openib_CPPFLAGS])
AC_SUBST([btl_openib_LDFLAGS])
AC_SUBST([btl_openib_LIBS])
OMPI_VAR_SCOPE_POP
])dnl
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