#!/bin/bash

# a script which compiles and runs a test program with a variety of compilers and options

# Fetch benchmark code
wget http://charm.cs.uiuc.edu/subnormal/files/subnormal_timetest.c
wget http://charm.cs.uiuc.edu/subnormal/files/Bench.java

# set delimiter for lists to be a colon, will be used by the for loops
IFS=:

COMPILERS="cc:icc:icpc:gcc:xlc:/opt/ibmcmp/vac/6.0/bin/xlc:/opt/ibmcmp/vac/6.0/bin/xlc_r:/opt/ibmcmp/vac/6.0/bin/gxlc:/opt/ibmcmp/vacpp/6.0/bin/gxlc:/opt/ibmcmp/vacpp/6.0/bin/xlc:/opt/ibmcmp/vacpp/6.0/bin/xlc_r"

SOURCE=subnormal_timetest.c
OPTSLIST="-O:-ffast-math:-O3:-O2:-mieee:-mieee-with-inexact:-mfp-trap-mode=u:-mieee-conformant::"

HOSTNAME=`hostname -s`
EXE=executable-$HOSTNAME
RESULTS=results-$HOSTNAME.txt

#erase results file
cat /dev/null > $RESULTS

if [ -e "/proc/cpuinfo" ]; then 
	cat /proc/cpuinfo >> $RESULTS 
fi

# Add kernel version and date
date >> $RESULTS
uname -a >> $RESULTS
hostname >> $RESULTS

echo "=================================================================" >> $RESULTS


for OPTS in $OPTSLIST
do
	for COMPILER in $COMPILERS 
	do
        if [ `which $COMPILER 2> /dev/null` ]; then
		COMPILERFULLPATH=`which $COMPILER`
			if [ -x $COMPILERFULLPATH ]; then
				echo "- - - - - - - - - - - - - - - - - - - - - - - - - - - - -" >> $RESULTS
				if [ ! `$COMPILERFULLPATH $SOURCE $OPTS -o $EXE` ]; then
					echo $COMPILERFULLPATH $SOURCE $OPTS -o $EXE
					echo $COMPILERFULLPATH $SOURCE $OPTS >> $RESULTS
					$COMPILERFULLPATH $SOURCE $OPTS -o $EXE
					./$EXE >> $RESULTS
					rm $EXE
				fi
			fi
        fi
	done
done

echo "Running Java Version"
echo "- - - - - - - - - - - - - - - - - - - - - - - - - - - - -" >> $RESULTS
echo "JAVA Version: " >> $RESULTS
javac Bench.java
java Bench >> $RESULTS

echo "Removing Temp files"
rm subnormal_timetest.c
rm Bench.java Bench.class
echo "DONE"