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 2005-11-23, 12:39 #8 Thomas11     Feb 2003 5·383 Posts I'm using the following perl script to run LLR on a couple of machines. Perhaps it is of some use for you, Joe. If there isn't a ssh running on your machines, it should also work with the "rsh" command instead of "ssh". Note the "-B" switch for LLR. It runs LLR in the background, e.g. it works the same way as "nohup llr". Note also that the way I analyse the output of the uptime command assumes the machines are running for at least one day. For uptime < 1 day the $load variable will contain the wrong data... And finally note, that you will need some additional script which does the preparation of the input files on your machines. I have some scripts for that purpose, but they assume that the machines have a common home directory. So you'll need to find some other way to handle the input files. Good luck! Thomas Code: #!/usr/bin/perl -w # Programm: automatic.pl # you need to change the following into your machine-names or IPs: @machines = ("comp1", "comp2", "comp3", "comp4"); for ($i=0; $i<=$#machines; $i++) {$machine = $machines[$i]; # get the load on this specific machine: $help = ssh$machine uptime; @data = split(" ", $help); chop($data[9]); $load =$data[9]; print "$machine$load\n"; # start LLR if the load is lower than 0.25: if ($load < 0.25) { print "starting LLR at$machine\n"; # you will need to adjust the name of the working directory: ssh $machine "cd ~/llr321/$machine/ && ./llr -B"; } } Last fiddled with by Thomas11 on 2005-11-23 at 12:43