#!/bin/bash
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# Copyright (c) 2015, Intel Corporation
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# [ICS VERSION STRING: unknown]

# BASE PATH TO MPI EXECUTABLES: To use an alternate location,
# either edit this line or set MPICH_PREFIX in your environment.
# see select_mpi for the set of default MPI selections
# default to MPI used for build
MPICH_PREFIX=${MPICH_PREFIX:-`cat .prefix 2>/dev/null`}

trap "exit 1" SIGHUP SIGTERM SIGINT

if [ -z "$1" ]
then
    echo " Usage: run_tachyon number_processes"
    echo " For example: ./run_tachyon 2"
	echo "number_processes may be 'all' in which case one rank will be started for"
	echo "every process in the mpi_hosts file"
    echo
    echo " Use click-and-drag to zoom into image."
    echo " Use CTRL-C to terminate."
    exit 1
fi

NUM_PROCESSES=$1
APP=tachyon
LOGFILE=
. ./prepare_run

RUN_DIR="$PWD/tachyon/scenes"
TACHYON_CMD="$PWD/tachyon/scenes/tachyon $RUN_DIR/$2.dat -camfile $RUN_DIR/$2.cam -numthreads 1"

if [ $USING_MPD = y ]
then
    MPI_RUN_CMD="$MPI_RUN_CMD -wdir $RUN_DIR"
fi

echo " Running Tachyon..."
show_mpi_hosts
(cd $RUN_DIR; $MPI_RUN_CMD $TACHYON_CMD)