#! /bin/sh
#
# Run some of the tests.  If any arguments are provided, pass them to the
# test programs.
#
# -mvhome is needed for the ANL SP, and is ignored by others
args="-mvhome"
device=ch_gm
if [ "$device" = "ch_p4mpd" ] ; then
    args=""
fi
STOPFILE=$HOME/.stopmpichtests
#
# Some people don't include "." in their path (! in case an ls trojan horse,
# I guess - if someone does that to you, you have bigger problems).  This
# code tests to see if you have a path to mpirun; if not, it tries ./mpirun.
#
# One particular problem is having multiple mpiruns in the path.  An
# absolute path for mpirun will fix many problems
mpirun="/usr/rels/mpich-1.2..4pre2/bin/mpirun"
if [ -z "$MPICH_USE_LIB_MPIRUN" -a ! -x "$mpirun" ] ; then
    IFS="${IFS= 	}"; saveifs="$IFS"; IFS="${IFS}:"
    for dir in $PATH ; do 
        if [ -x $dir/mpirun ] ; then
	    if [ -n "" ] ; then
		# Test that we've found the correct mpirun
		if strings $dir/mpirun | grep "MPIRUN for MPICH" > /dev/null ; then
		    :
		else
		    # echo "$dir/mpirun isn't for MPICH"
		    continue
		fi
	    fi
            mpirun="mpirun"
            break
        fi
    done
    IFS="$saveifs"
fi
if [ -z "$mpirun" -a -x "./mpirun" ] ; then
    mpirun=./mpirun
fi
#
# Here is the location of the MPICH version of mpirun
if [ -z "$mpirun" -a -x ./bin/mpirun ] ; then 
    mpirun="./bin/mpirun"
fi
if [ -z "$mpirun" ] ; then
    echo "No mpirun in path.  Testing cannot proceed."
    exit 1
fi
#
# If the programs are not available, run make.
#
runtests=1
makeeach=0
quiet=0
MAKE="make --no-print-directory"
for arg in "$@" ; do
    case $arg in 
	-checkonly )
	runtests=0
	;;
        -margs=*)
	margs=`echo $arg | sed 's/-margs=//'`
	args="$args $margs"
	;;
	-small)
	makeeach=1
	;;
	-quiet)
	shift
	quiet=1
	;;
	-help|-u)
	echo "runtests [-checkonly] [-margs='...'] [-small]"
	echo "run tests in this directory.  If -checkonly set, just run"
	echo "the differences check (do NO rerun the test programs)."
	echo "If -margs is used, these options are passed to mpirun."
	echo "If -small is used, the examples are built, run, and deleted."
	exit 1
	;;
	*)
	if test -n "$arg" ; then
   	    echo "runtests: Unknown argument ($arg)"
	    exit 1
        fi
	;;
    esac
done

MakeExe() {
    if [ -s $STOPFILE ] ; then 
        echo "Found stopfile; exiting"
	exit 0
    fi
    if [ ! -x $1 ] ; then
	$MAKE $1
        if [ ! -x $1 ] ; then 
	    echo "Could not build executable $1; aborting tests"
	    exit 1
        fi
    fi
}
CleanExe() {
    if [ $makeeach = 1 ] ; then
	/bin/rm -f $1 $1.o
    fi
}
# Output marker
OutTime() {
    if [ $quiet = 0 ] ; then
	if [ -z "$hostname" ] ; then
	    hostname=`hostname`
	fi
	d=`date`
	echo "$hostname : $d"
    fi
}

# Runtest pgm-name np marker-test args outfiles
RunTest() {
    OutTime
    testfiles="$testfiles $1.out"
    /bin/rm -f $1.out
    MakeExe $1
    mname=$3
    if [ -z "$mname" ] ; then mname="*** $1 ***" ; fi
    echo "$mname" >> $1.out
    echo "$mname"
    mvarg=""
    if [ -n "$5" ] ; then rm -f $5 ; 
	if [ "$device" != "ch_p4mpd" ] ; then
            if [ -n "-mvback" ] ; then mvarg="-mvback $5" ; fi 
	fi
    fi
    $mpirun $args -np $2 $mvarg $1 $4 </dev/null >> $1.out 2>&1
    if [ -n "$5" ] ; then cat $5 >> $1.out ; rm -f $5 ; fi
    echo "$mname" >> $1.out
    #CheckOutput $1
    CleanExe $1
}

if [ ! -x cart -a $makeeach = 0 -a $runtests = 1 ] ; then
    $MAKE default
fi

testfiles=""
if [ $runtests = 1 ] ; then

RunTest cart 4 "**** Testing MPI_Cart_create etc ****"

RunTest cart2 4 "**** Testing MPI_Cart_coords etc ****"

RunTest cartmap 4 "**** Testing MPI_Cart_map etc ****"

RunTest cartorder 4 "**** Testing MPI_Cart_create etc (2) ****"

RunTest graphtest 4 "**** Testing MPI_Graph_create etc ****"
#
# Run Fortran tests ONLY if Fortran available
if [ 1 = 1 ] ; then 
    echo "FORTRAN TESTS"

    RunTest cartf 4 "*** Testing cart from Fortran ***"

    RunTest cart1f 4 "*** Testing cart1 from Fortran ***"

    RunTest cart2f 4 "*** Testing cart2 from Fortran ***"

    RunTest twod 2 "*** Testing twod from Fortran ***"
fi
else
    # Just run checks
    testfiles=*.out
fi
#
echo '*** Checking for differences from expected output ***'
/bin/rm -f topol.diff
nodiff=1
srcdir=/usr/rels/mpich-1.2..4pre2/examples/test/topol
for file in $testfiles ; do
    stdfile=$srcdir/`basename $file .out`.std
    if [ -s $stdfile ] ; then
        if diff -b $file $stdfile > /dev/null ; then
	    true
        else
	    echo "Differences in `basename $file .out`" >> topol.diff
	    diff -b $file $stdfile >> topol.diff
	    nodiff=0
	fi
    else
        echo "Cannot find file $stdfile to compare against for test `basename $file .out`"
    fi
done
if [ -s topol.diff ] ; then
   cat topol.diff
elif [ $nodiff = 1 ] ; then
   echo "-- No differences found; test successful"
fi
exit 0
