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Comsol stops responding

Posted 24 apr 2017, 03:16 GMT-4 4 Replies

Harish Puppala
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Hello all, whenever I run a simulation that requires long processing time ( particularly in case of parametric sweep), I find that the program stops responding. Neither the results are updating nor I could terminate the simulation. What could be the possible reason?
4 Replies Last Post 26 apr 2017, 03:57 GMT-4
Edgar J. Kaiser Certified Consultant
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Posted: 8 years ago 24 apr 2017, 03:49 GMT-4
Hi,

myself and others are observing this phenomenon. Look here for a few option to reduce the frequency:
www.comsol.de/community/forums/general/thread/105901

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi, myself and others are observing this phenomenon. Look here for a few option to reduce the frequency: https://www.comsol.de/community/forums/general/thread/105901 Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
Harish Puppala
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Posted: 8 years ago 24 apr 2017, 08:33 GMT-4
Yeah sir, When I encountered this problem, I have gone through your suggestions. But still facing the same problem for the past 10 simulations. Can I overcome this if I switch to earlier versions of comsol (4.4, 4.3 b).
Yeah sir, When I encountered this problem, I have gone through your suggestions. But still facing the same problem for the past 10 simulations. Can I overcome this if I switch to earlier versions of comsol (4.4, 4.3 b).
Edgar J. Kaiser Certified Consultant
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Posted: 8 years ago 24 apr 2017, 09:27 GMT-4

I haven't observed this in the 4.x versions. But that is not a guarantee. The issue might also result from some interaction with newer driver or windows components. Try it!

I am wondering if this behavior is observed under Linux? Any comments anybody? Any comments from Comsol?

If Linux was not affected it would indeed be a good reason to make a change.

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
I haven't observed this in the 4.x versions. But that is not a guarantee. The issue might also result from some interaction with newer driver or windows components. Try it! I am wondering if this behavior is observed under Linux? Any comments anybody? Any comments from Comsol? If Linux was not affected it would indeed be a good reason to make a change. -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
Hanna Gothäll COMSOL Employee

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Posted: 8 years ago 26 apr 2017, 03:57 GMT-4

I am wondering if this behavior is observed under Linux? Any comments anybody? Any comments from Comsol?


This is a known issue in COMSOL Multiphysics 5.2a and it has been observed on all platforms. The issue arises occasionally when plotting while running the solver (including convergence plots, probe plots, and regular plot groups). The issue is fixed in COMSOL Multiphysics 5.3, available for download here:

www.comsol.com/product-download

If you can't update right now, it is recommended to turn off all plotting while running critical computations.
[QUOTE] I am wondering if this behavior is observed under Linux? Any comments anybody? Any comments from Comsol? [/QUOTE] This is a known issue in COMSOL Multiphysics 5.2a and it has been observed on all platforms. The issue arises occasionally when plotting while running the solver (including convergence plots, probe plots, and regular plot groups). The issue is fixed in COMSOL Multiphysics 5.3, available for download here: https://www.comsol.com/product-download If you can't update right now, it is recommended to turn off all plotting while running critical computations.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

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