Question

如何从Perl脚本确定它是通过SGE运行还是从命令行本地运行？

Answer 1

来自http://www.cbi.utsa.edu/sge_tutorial：

When a Sun Grid Engine job is run, a number of variables are preset into the
job’s script environment, as listed below.

SGE_ROOT - The Sun Grid Engine root directory as set for sge_execd before
   start-up or the default /usr/SGE
SGE_CELL - The Sun Grid Engine cell in which the job executes
SGE_JOB_SPOOL_DIR - The directory used by sge_shepherd(8) to store jobrelated
   data during job execution
...
...

检查％ENV是否应该告诉您它是否通过SGE运行。

Answer 2

您可以尝试这样的事情：

use Proc::ProcessTable;

my $running_under_sge = 0;
my $ppid = getppid();
my $t = new Proc::ProcessTable;
foreach my $p (@{$t->table}) {
    if ($p->pid == $ppid) {
        if ($p->cmdline =~ m/sge_shepherd/) {
            $running_under_sge++;
            last;
        }
    }
}

这可以通过检查程序的父进程来实现。如果父进程是sge_shepherd，那么它是由SGE exec守护进程启动的。根据您使用的Grid Engine版本，名称可能不同。

Answer 3

jlp提供的脚本是一种彻底的检查方式，是我推荐的方法。但是，如果您只想快速声明，请检查环境是否具有SGE作业ID。见下文。

#!/usr/bin/perl

use strict;

my $job_id = $ENV{JOB_ID};

if ($job_id > 0) {
  print "Is and SGE job";
} else {
  print "Is NOT and SGE job";
}

确定脚本是否在SGE中运行

3 个答案: