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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.
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Avoid using built-in shell echoes
ECHO=/bin/echo
MAKE=gmake
PERL=perl
# 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
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