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Monte Carlo Ocean XL: Interrupting simulations in a script

Martyniuk

Dear All,

In the past I would interrupt an ocean script by issuing a ctrl-c, and this would stop the present simulation.  I am finding that the behaviour is not the same with ocean XL(IC6.1.8-64b.500.7), and there is no response to ctrl-c.

I start ocean from the command line with just "ocean", and begin the script with either:

ocnSetXLMode("assembler") or ocnSetXLMode("explorer")

The simulation is a harmonic balance simulation, with APS selected and 16 threads.

To interrupt the script I find that I need to seek out the spectre PID and use kill -9. 

Is there a more interactive setup that I can use that will respond to an interrupt, or am I using the best practice?

Best regards,

Paul

  • Andrew Beckett

    Hi Paul,

    I don't think there's a good way of doing this, unfortunately. I think if you killed the running "ocean" or "virtuoso" session, it would (normally) kill any launched simulations too, but that's not that easy either. It appears there have been some discussions about this before in previous change requests, but I don't see any particularly good way of doing this right now. The issue is that OCEAN XL (often) launches the simulations via a background process and there's a lot of housekeeping that has to be done so interrupting it is not entirely trivial...

    One possibility is if you launch the simulations this way:

    ocnxlRun( ?mode 'sweepsAndCorners ?nominalCornerEnabled t ?allCornersEnabled t ?allSweepsEnabled t ?waitUntilDone nil)

    i..e with ?waitUntilDone nil 

    Then it doesn't block. You can then type:

    ocnxlEndXLMode()

    and it will stop any simulations and finish the script. Of course, you need to then wait until finished before calling ocnxlOutputSummary too.

    Unfortunately if you use the return value of ocnxlRun and pass this to ocnxlWaitUntilDone then you find that if you do control-C it does stop the simulations but then seems to hang virtuoso/ocean.

    Regards,

    Andrew.

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