#!/bin/bash
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# [ICS VERSION STRING: unknown]

# SLURM directives.  Must precede all non-comment lines and can't use variables
# slurm command line overrides any SBATCH settings here
# to disable a given setting below, use ## to comment out
##SBATCH --job-name=run_deviation
#SBATCH --output=logs/deviation.%j.out
# timelimit in days-hours:minutes:seconds
##SBATCH --time=0-00:30:00

# 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

bwtol=20
lattol=50

CMD="deviation/deviation"
APP=deviation

Usage()
{
	echo "Usage: $0 number_of_processes ['ff' | bwtol lattol] [other options]" >&2
	echo "          or"
	echo "       $0 --help"
	echo "    number_of_processes may be 'all' in which case PROCS_PER_NODE ranks will"
	echo "                     be started for every entry in the MPI_HOSTS file"
	echo "    'ff'      When specified, the configured FF_DEVIATION_ARGS will be used" >&2
	echo "    bwtol     Percent of bandwidth degradation allowed below Avg value" >&2
	echo "              passed via -bwtol to $APP" >&2
 	echo "    lattol    Percent of latency degradation allowed above Avg value" >&2
	echo "              passed via -lattol to $APP" >&2
	echo "    [other options] are passed to ${APP}" >&2
	echo "Examples:" >&2
	echo "   $0 20 ff" >&2
	echo "   $0 20 ff -v" >&2
	echo "   $0 20 20 50 -c" >&2
	echo "   $0 20 '' '' -c -v -bwthres 1200.5 -latthres 3.5" >&2
	echo "   $0 20 20 50 -c -h compute0001" >&2
	echo "   $0 20 0 0 -bwdelta 200 -latdelta 0.5" >&2
	echo  >&2
	echo "To get more details about [other options] available: $0 1 --help"
	exit 2
}

if [ -z "$1" -o x"$1" = x"-h" -o x"$1" = x"--help" ]
then
	Usage
else
	NUM_PROCESSES=$1
	shift
fi
other_args=
if [ x"$1" = x"--help" -o x"$1" = x"-help" ]
then
	set -- "-help"
	MIN_PROCESSES=1
elif [ x"$1" = x"ff" ]
then 
	if [ ! -f /usr/lib/eth-tools/ff_funcs ]
	then
		echo "run_deviation: 'ff' argument requires that FastFabric is installed on this host" >&2
		Usage
	fi
	# get other arguments from ethfastfabric config
	# optional override of defaults
	if [ -f /etc/eth-tools/ethfastfabric.conf ]
	then
		. /etc/eth-tools/ethfastfabric.conf
	fi

	. /usr/lib/eth-tools/ethfastfabric.conf.def

	other_args="$FF_DEVIATION_ARGS"
	shift
else
	if [ -z $1 ]
	then 
		echo " Setting the default bandwidth tolerance to 20%"
		bwtol=20
	else
		bwtol=$1
	fi
	shift

	if [ -z $1 ]
	then 
		echo " Setting the default latency tolerance to 50%"
		lattol=50
	else
		lattol=$1
	fi
	shift

	other_args="-bwtol $bwtol -lattol $lattol"
fi

LOGFILE=
. ./prepare_run

(
	echo " Running Deviation ..."
	show_mpi_hosts
	show_mpi_env
	set -x
	$MPI_RUN_CMD $CMD $other_args "$@"
	set +x
) 2>&1 | tee -i -a $LOGFILE
echo "########################################### " >> $LOGFILE
