timetest

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#!/bin/sh

# 
# Simple timing test for the MPI library.  Basically, we use prime
# generation as a timing test, since it exercises most of the pathways
# of the library fairly heavily.  The 'primegen' tool outputs a line
# summarizing timing results.  We gather these and process them for
# statistical information, which is collected into a file.
#
## The contents of this file are subject to the Mozilla Public
## License Version 1.1 (the "License"); you may not use this file
## except in compliance with the License. You may obtain a copy of
## the License at http://www.mozilla.org/MPL/
##
## Software distributed under the License is distributed on an "AS
## IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
## implied. See the License for the specific language governing
## rights and limitations under the License.
##
## The Original Code is the MPI Arbitrary Precision Integer Arithmetic
## library.
##
## The Initial Developer of the Original Code is 
## Michael J. Fromberger <[e-mail]>
##
## Portions created by Michael J. Fromberger are 
## Copyright (C) 2000 Michael J. Fromberger. All Rights Reserved
##
## Contributor(s):
##	Netscape Communications Corporation
##
## Alternatively, the contents of this file may be used under the
## terms of the GNU General Public License Version 2 or later (the
## "GPL"), in which case the provisions of the GPL are applicable
## instead of those above.  If you wish to allow use of your
## version of this file only under the terms of the GPL and not to
## allow others to use your version of this file under the MPL,
## indicate your decision by deleting the provisions above and
## replace them with the notice and other provisions required by
## the GPL.  If you do not delete the provisions above, a recipient
## may use your version of this file under either the MPL or the GPL.
## 
# $Id: timetest,v 1.5 2000/09/14 00:32:24 nelsonb%netscape.com Exp $
#

# Avoid using built-in shell echoes
ECHO=/bin/echo
MAKE=gmake

# Use a fixed seed so timings will be more consistent
# This one is the 11th-18th decimal digits of 'e'
#export SEED=45904523
SEED=45904523; export SEED

#------------------------------------------------------------------------

$ECHO "\n** Running timing tests for MPI library\n"

$ECHO "Bringing 'metime' up to date ... "
if $MAKE metime ; then
    :
else 
    $ECHO "\nMake failed to build metime.\n"
    exit 1
fi

if [ ! -x ./metime ] ; then 
    $ECHO "\nCannot find 'metime' program, testing cannot continue.\n"
    exit 1
fi

#------------------------------------------------------------------------

$ECHO "Bringing 'primegen' up to date ... "
if $MAKE primegen ; then
    :
else
    $ECHO "\nMake failed to build primegen.\n"
    exit 1
fi

if [ ! -x ./primegen ] ; then
    $ECHO "\nCannot find 'primegen' program, testing cannot continue.\n"
    exit 1
fi

#------------------------------------------------------------------------

rm -f timing-results.txt
touch timing-results.txt

sizes="256 512 1024 2048"
ntests=10

trap 'echo "oop!";rm -f tt*.tmp timing-results.txt;exit 0' INT HUP

$ECHO "\n-- Modular exponentiation\n"
$ECHO "Modular exponentiation:" >> timing-results.txt

$ECHO "Running $ntests modular exponentiations per test:"
for size in $sizes ; do
    $ECHO "- Gathering statistics for $size bits ... "
    secs=`./metime $ntests $size | tail -1 | awk '{print $2}'`
    $ECHO "$size: " $secs " seconds per op" >> timing-results.txt
    tail -1 timing-results.txt
done

$ECHO "<done>";

sizes="256 512 1024"
ntests=1

$ECHO "\n-- Prime generation\n"
$ECHO "Prime generation:" >> timing-results.txt

$ECHO "Generating $ntests prime values per test:"
for size in $sizes ; do
    $ECHO "- Gathering statistics for $size bits ... "
    ./primegen $size $ntests | grep ticks | awk '{print $7}' | tr -d '(' > tt$$.tmp
    $ECHO "$size:" >> timing-results.txt
    perl stats tt$$.tmp >> timing-results.txt
    tail -1 timing-results.txt
    rm -f tt$$.tmp
done

$ECHO "<done>"

trap 'rm -f tt*.tmp timing-results.txt' INT HUP

exit 0