#!/bin/bash
#
# This file is a part of Elmer Runtime Environment for NorduGrid ARC grid 
# middleware. It is meant to be called from the users' job scripts, 
# and it acts as a wrapper for both ElmerSolver and ElmerSolver_mpi.
#
# The script assumes that the actual RTE setup script (e.g.
# <rte_dir>/APPS/MATH/ELMER-5.0) has been run prior to it's execution.
# The setup script sets the variables $ELMER_NUM_SLOTS,
# $ELMER_MACHINEFILE and $ELMER_HOME.
#
# author: Olli Tourunen <olli.tourunen@csc.fi>
# 
# changelog:
# 2006-04-06 tourunen
# - ELMER_DIR changed to standard ELMER_HOME
#
# 2006-03-28
# - initial version

# set up the MPI environment that matches the Elmer binaries. 
# EDIT THIS AS NEEDED
source /opt/mpich/mpich-path64.sh
mpirun_exe=mpirun

# check whether we are running a parallel or a serial job
if [ $ELMER_NUM_SLOTS -gt 1 ]; then
  # we'll use ElmerSolver_mpi for the parallel jobs 
  echo "ElmerSolver_grid: running MPI binary with $ELMER_NUM_SLOTS slots"
  $mpirun_exe -np $ELMER_NUM_SLOTS -machinefile $ELMER_MACHINEFILE $ELMER_HOME/bin/ElmerSolver_mpi $@
  # exits with the return value from the mpirun
  exit $?
else
  # we'll use ElmerSolver for the serial jobs
  echo "ElmerSolver_grid: running serial binary"
  $ELMER_HOME/bin/ElmerSolver $@
  # exits with the return value from the ElmerSolver
  exit $?  
fi