qsub: How can I find out what DRM middleware exactly is installed on a cluster?
- by gojira
I have a user account on a very big cluster. I have previous experience with Grid Engine and want to use the cluster for array jobs.
The documentation tells me to use "qsub" for load balancing / submission of many jobs. Therefore I assumed this means the cluster has Grid Engine.
However all my Grid Engine scripts failed to run. I checked the documentation and it is a bit weird. Now I slowly suspect that this cluster does not actually have Grid Engine, maybe it's running something called Torque (?!). The whole terminology in the man pages is a bit weird for me as a Grid Engine user, for example they talk about "bulk jobs" instead of "array jobs". There is no referral to variables on which I rely on, like SGE_TASK_ID etc. Instead they refer to variables starting with PBS_. Still, there are qsub and qstat commands.
Also qsub behaves differently, apparently it is not possible to specifiy the command line parameters with bash-script comments etc.
There is a documentation for the cluster system, but it does not say what the DRM middleware actually is - it refers to the entire DRM system simply as "qsub".
I tried
qsub --version
qsub: 1.2 2010/8/17
I am not sure what I am actually running when I invoke qsub on that cluster!
My question is, how can I find out if I am running Grid Engine or Torque (or whatever it is), and which version?
