topic Re: Exit Code 11 in CFD Forum

Exit Code 11

Anonymous — Tue, 03 May 2016 10:06:39 GMT

Hey guys, can anyone tell me what exit code 11 stands for?

I'm running a quite big simulation and at the biginning it works well. The solver already computed several time steps (although it's not displaying them), but suddenly it just idles or rather stops. The log file says the job finished with exit code 11, although not all time steps are computed. However, the UI still shows that the computation is running and isn't doing anything at all.

Re: Exit Code 11

Amal.C — Tue, 03 May 2016 15:08:05 GMT

Hi,

Thanks for posting in Autodesk community

Would it be possible if you share with us your model? I believe it would be better to look closer into it and help you resolve the issue.

Many thanks!

Re: Exit Code 11

Anonymous — Wed, 04 May 2016 07:20:06 GMT

Sorry, but I can't share the model. I think I resolved the issue, though. The model had too many elements for the available RAM so the solver just crashed. I restarted the calculation with fewer elements and then it worked. Thanks anyway!

Re: Exit Code 11

Anonymous — Wed, 04 May 2016 07:53:33 GMT

I still got a question, though. In the log file, there is a line saying 'output:CMPIExchange::ExchangeArrayMPI: array length is too large; Length = 1279298'. This appears after 'Solving kPhi 12' and after 'Solving kPhi 5'. Is this a problem or can it be ignored?

Re: Exit Code 11

Amal.C — Wed, 04 May 2016 10:05:55 GMT

Your model has probably more than 30 M elements and 6 M nodes. Or?

output:CMPIExchange::ExchangeArrayMPI: array length is too large; Length = 1279298 : is just an informational message from the Accelerant Solver indicating that it is dealing with a very large model and it will have to resort to larger array lengths for message exchanges which are used by the solver.

Do not worry! It is not an error.

Re: Exit Code 11

Anonymous — Wed, 04 May 2016 12:18:54 GMT

Yes, the model got around 38M elements 😉

Re: Exit Code 11

Amal.C — Wed, 04 May 2016 12:24:17 GMT

Perfect! So, this explains well the message you get on the log file.

I am glad that you were able to overcome the issue

Re: Exit Code 11

Anonymous — Wed, 04 May 2016 12:25:11 GMT

Thanks for your help anyway 🙂