/usr/bin/start_epsilon_nodes is in epsilon-bin 0.9.2+dfsg-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | #!/usr/bin/perl -w
#
# $Id: start_epsilon_nodes.pl,v 1.4 2010/02/05 23:50:23 simakov Exp $
#
# EPSILON - wavelet image compression library.
# Copyright (C) 2006,2007,2010 Alexander Simakov, <xander@entropyware.info>
#
# This file is part of EPSILON
#
# EPSILON 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 3 of the License, or
# (at your option) any later version.
#
# EPSILON 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 for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with EPSILON. If not, see <http://www.gnu.org/licenses/>.
#
# http://epsilon-project.sourceforge.net
#
use strict;
use warnings;
sub start_nodes {
my ($epsilon_nodes) = @_;
open F, $epsilon_nodes or die "$epsilon_nodes: $!";
my @machines = ();
while (my $line = <F>) {
if ($line =~ /^(.*?\@.*?):/) {
my $login = $1;
push @machines, $login;
}
}
if (@machines) {
system('dsh', '-m', join(',', @machines), 'epsilon', '-s');
}
close F;
}
sub Main {
my $epsilon_nodes;
if (@ARGV == 1) {
$epsilon_nodes = $ARGV[0];
} elsif (-e ".epsilon.nodes") {
$epsilon_nodes = ".epsilon.nodes";
} elsif (-e "$ENV{HOME}/.epsilon.nodes") {
$epsilon_nodes = "$ENV{HOME}/.epsilon.nodes";
} else {
print <<EOF;
This is a script for starting EPSILON nodes using DSH (Distributed SHell).
Host configuration is taken from so called `.epsilon.nodes' file.
By default, program checks `.epsilon.nodes' in the current directory.
If there is no such file, program tries `.epsilon.nodes' in user`s home
directory, i.e. \$HOME/.epsilon.nodes. You can also explicitly specify
file location as an argument to `start_epsilon_nodes.pl' script.
EOF
exit(1);
}
print "Using $epsilon_nodes\n";
start_nodes($epsilon_nodes);
}
Main();
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