#! /usr/bin/ksh93
#
# Copyright  (C)  2014  Thomas Jahns <jahns@dkrz.de>
#
# Redistribution and use in source and binary forms, with or without
# modification, are  permitted provided that the following conditions are
# met:
#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# Neither the name of the DKRZ GmbH nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
# OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Run programs on AIX PE like mpirun does for other systems
#
if [ x"$1" = x-n ]; then
   shift
   MP_PROCS="$1"
   export MP_PROCS
   shift
fi
hostname=$(hostname)
if ! grep "$hostname" $HOME/.rhosts 2>/dev/null >&2 ; then
  echo "Error: current hostname not in ~/.rhosts!" >&2
  exit 1
fi
MP_HOSTFILE=`mktemp -t hostfile.tmpXXXXXX`
trap '/bin/rm -f $MP_HOSTFILE' EXIT
export MP_HOSTFILE
yes "$hostname" | head -n ${MP_PROCS-1} >$MP_HOSTFILE

poe "$@"
#
# Local Variables:
# mode: sh
# End:
#
