How to run multiple tests in parallel

You'll want to use two steps -- one to generate the snapshot and one to run the simulation.

• irun -c <list of args> <list of files> [-snapshot <snapshot name>]
• irun -R <list of sim args>
  OR
• irun -r <snapshot name> <list of sim args>

The "irun -R" will run with the last snapshot generated or you can use "irun -r <snapshot name>" to run with a specific snapshot. 

Once you have the snapshot, you can use bsub (or whatever tool you use) to submit as many sims as you can. You'll want to make sure that you specify individual log files or run in separate directories so that output files don't get overwritten.

If you use vmanager, this is all done for you by specifying the compile command in the pre-session script name and the sim command in the run script name.

Tim

Hi Tim,

Thanks for the reply.

I'm not referring to multiple tests in one regression. What I'm referring to is to submit multiple tests in the compute farm so that they will be simulated simultaenously. In this way, regression time will reduce.

Is that what you are explaining above too?

Regards,

Reuben

This is sounds like it may be more of a DRM issue than a tool issue. You need to find out what the commands are to submit to the farm and then just pass the irun commands using the DRM. Then you can pass multiple irun jobs to run in parallel.

As I stated before, you'll just need to make sure you are running in separate directories or renaming the files so you aren't overwriting them from each parallel job.

Tim