add a new benchmark to measure the performance of sgemm on square matrices (to

show whether a trivial performance model wouldbe sufficient or not)

tests/perf-models/bench_sgemm.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+#
+# StarPU
+# Copyright (C) INRIA 2008-2009 (see AUTHORS file)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or (at
+# your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# See the GNU Lesser General Public License in COPYING.LGPL for more details.
+#
+
+DIR=$PWD
+ROOTDIR=$DIR/../..
+BUILDDIR=$PWD/build/
+INSTALLDIR=$PWD/local/
+PERFDIR=$DIR/sampling/
+
+make -C ../../ distclean
+
+mkdir -p $PERFDIR
+mkdir -p $BUILDDIR
+cd $BUILDDIR
+$DIR/../../configure -C --prefix=$INSTALLDIR --with-goto-dir=/home/gonnet/These/Libs/GotoBLAS/GotoBLAS/ --enable-verbose
+
+make -j 10
+make install
+
+sizelist="16 32 48 64 96 128 192 256 384 512 1024 2048 4096"
+
+cpu_output=$DIR/output.cpu
+gpu_output=$DIR/output.gpu
+
+rm -f $cpu_output
+rm -f $gpu_output
+
+export WORKERS_CPUID="2"
+export CALIBRATE=1
+export SCHED="dm"
+
+# benchmark GotoBLAS
+for size in $sizelist;
+do
+	niter=1000
+	if test $size -ge 512; then
+		niter=20
+	fi
+	if test $size -ge 2048; then
+		niter=5
+	fi
+
+	echo "GotoBLAS -> size $size niter $niter"
+	timing=`NCPUS=1 NCUDA=0 $INSTALLDIR/lib/starpu/examples/dw_mult_no_filters -x $size -y $size -z $size -nblocks 1 -iter $niter 2> /dev/null`
+	echo "$size	$timing	$niter" >> $cpu_output
+done
+
+# benchmark CUBLAS
+for size in $sizelist;
+do
+	niter=2500
+	if test $size -ge 512; then
+		niter=250
+	fi
+
+	if test $size -ge 2048; then
+		niter=25
+	fi
+
+	echo "CUBLAS -> size $size niter $niter"
+	timing=`NCPUS=0 NCUDA=1 $INSTALLDIR/lib/starpu/examples/dw_mult_no_filters -x $size -y $size -z $size -nblocks 1 -iter $niter 2 -pin 2> /dev/null`
+	echo "$size	$timing	$niter" >> $gpu_output
+done
+
+gnuplot > /dev/null << EOF
+
+set term postscript eps enhanced color
+set output "bench_sgemm.eps"
+
+set logscale x
+set logscale y
+
+plot "$cpu_output" usi 1:(\$2/\$3) with linespoint, \
+	"$gpu_output" usi 1:(\$2/\$3) with linespoint
+
+EOF
+