50 lines
2.0 KiB
Perl
Executable File
50 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/env perl
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# =======================================================================================
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#
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# Author: Jan Eitzinger (je), jan.eitzinger@fau.de
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# Copyright (c) 2019 RRZE, University Erlangen-Nuremberg
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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# =======================================================================================
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use strict;
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use warnings;
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use utf8;
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my $CMD = $ARGV[0];
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my @N = split /-/, $ARGV[1];
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my $R = $ARGV[2];
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my $MAX = 0; my $CORES = 0; my $BENCH = '';
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my $SMT = $ARGV[3] ? $ARGV[3] : 2;
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foreach my $numcores ( $N[0] ... $N[1] ) {
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foreach ( 1 ... $R ) {
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foreach my $ln ( split /\n/, `likwid-pin -c E:S0:$numcores:1:$SMT $CMD` ){
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if ( $ln =~ /^([A-Za-z]+):[ ]+([0-9.]+) /) {
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if ( $MAX < $2 ){
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$MAX = $2; $CORES = $numcores; $BENCH = $1;
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}
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}
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}
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}
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}
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print "$BENCH was best using $CORES threads: $MAX\n";
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