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#!/usr/bin/perl
#########################################################################
#
# The Contents of this file are made available subject to the terms of
# the Sun Industry Standards Source License Version 1.2
#
# Sun Microsystems Inc., March, 2001
#
#
# Sun Industry Standards Source License Version 1.2
# =================================================
# The contents of this file are subject to the Sun Industry Standards
# Source License Version 1.2 (the "License"); You may not use this file
# except in compliance with the License. You may obtain a copy of the
# License at http://gridengine.sunsource.net/Gridengine_SISSL_license.html
#
# Software provided under this License is provided on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
# WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
# MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
# See the License for the specific provisions governing your rights and
# obligations concerning the Software.
#
# The Initial Developer of the Original Code is: Sun Microsystems, Inc.
#
# Copyright: 2001 by Sun Microsystems, Inc.
#
# All Rights Reserved.
#
#########################################################################
#
# This script forks and execs identical copies of qsub.
#
# Syntax:
# qsub_blast.pl -n num_instances -m num_simultaneous -q -- qsub_args...
#
# Example:
# qsub_blast.pl -n 30 -m 30 -- -sync yes -cwd examples/jobs/exit.sh 0
#
#########################################################################
$num_forks = 1;
$per_loop = 10;
$silent = 0;
# Process args
if (@ARGV == 0) {
usage ();
exit (0);
}
# Copy the arg array, remove the number of instances, and add "qsub"
@args = @ARGV;
$arg = shift (@args);
while ($arg ne "--") {
if ($arg eq "-n") {
$arg = shift (@args);
if ($arg !~ /^\d+$/) {
usage ();
exit (1);
}
$num_forks = $arg;
}
elsif ($arg eq "-m") {
$arg = shift (@args);
if ($arg !~ /^\d+$/) {
usage ();
exit (1);
}
$per_loop = $arg;
}
elsif ($arg eq "-q") {
$silent = 1;
}
elsif ($arg eq "-help") {
usage ();
exit (0);
}
else {
usage ();
exit (1);
}
$arg = shift (@args);
}
if ($arg ne "--") {
usage ();
exit (1);
}
unshift (@args, "qsub");
if ($silent) {
push (@args, "1>/dev/null");
push (@args, "2>&1");
}
# Fork and exec the right number of qsubs
while ($num_forks > 0) {
if ($num_forks < $per_loop) {
$max = $num_forks;
}
else {
$max = $per_loop;
}
for ($count = 0; $count < $max; $count++) {
if (fork () == 0) {
exec (@args);
}
}
# Wait once for each fork
for ($count = 0; $count < $max; $count++) {
wait ();
}
$num_forks -= $max;
}
exit (0);
# Print the script's usage information
sub usage {
print "USAGE: qsub_blast.pl [args] -- qsub_args\n";
print "\t-n num_instances Number of instances to run\n";
print "\t-m num_simultaneous Number of instances which will run at a time\n";
print "\t-q Suppress qsub output\n";
print "\t-help Print this message\n";
}
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