Question

I’m writing a perl script that, among other things submits three scripts to qsub. How do I “tell” my script when the first job is complete? I assume there’s some way of accessing the variable where qsub stores the job state but I can’t figure it out.

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Update: Circumvented it using a flag in qsub.

qsub -hold_jid job2 job1

Answer 1

Try PBS::Client:

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use strict;
use warnings;
use PBS::Client;

my $pbs = PBS::Client->new;
my $job1 = PBS::Client::Job->new(cmd => "./a1.out");
my $job2 = PBS::Client::Job->new(cmd => "./a2.out");
my $job3 = PBS::Client::Job->new(cmd => "./a3.out");

$job1->next({ ok => $job2 });   # Run $job2 if $job1 ran OK
$job2->next({ ok => $job3 });   # Run $job3 if $job2 ran OK

$pbs->qsub($job1);