Error when parallel computing

starhunter521 · November 30, 2016, 20:46

Hi,all！

I have a problem that FINE could run with single core, but didn't run
with parallel computing.
The error showed as blow and FINE stopped：

!stack error: Space already allocated fornmbufp

In my model，there is 4 FNMB between the cavity and main passage of centrifugal compressor.
Is that related to the problem?
I can post the pic of my model in detail if necessary.
Thank you!

Hamidzoka · December 27, 2016, 09:39

Hi
check if it runs in parallel in case of a very simple case.
Non matching boundaries sometimes bring about some difficulties!

Regards

colinda1 · April 11, 2017, 04:54

Is the problem solved in the meanwhile?
If the case runs in serial and not in parallel it sounds to me like a defect and should be investigated in further detail. Even if it is caused by a wrong project set-up the error message should give a more clear indication of what is wrong.
Even if a very simple case would run in parallel, it would still not provide any indication for the reason why your specific case would not work. And very often it is not desirable or possible to avoid non-matching boundaries. Many users are running cases with non-matching boundaries in parallel. In principle this should not be a problem at all.

If you have access to hotline support, I would recommend to have this investigated through the regular support channel.

Best regards,
Colinda

November 30, 2016, 20:46	Error when parallel computing	#1
starhunter521 New Member shaodong Join Date: Jun 2013 Posts: 4 Rep Power: 12	Hi,all！ I have a problem that FINE could run with single core, but didn't run with parallel computing. The error showed as blow and FINE stopped： !stack error: Space already allocated fornmbufp In my model，there is 4 FNMB between the cavity and main passage of centrifugal compressor. Is that related to the problem? I can post the pic of my model in detail if necessary. Thank you!

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December 27, 2016, 09:39		#2
Hamidzoka Senior Member Hamid Zoka Join Date: Nov 2009 Posts: 282 Rep Power: 18	Hi check if it runs in parallel in case of a very simple case. Non matching boundaries sometimes bring about some difficulties! Regards

April 11, 2017, 04:54		#3
colinda1 Senior Member Colinda Join Date: May 2012 Location: Brussels Posts: 151 Rep Power: 13	Is the problem solved in the meanwhile? If the case runs in serial and not in parallel it sounds to me like a defect and should be investigated in further detail. Even if it is caused by a wrong project set-up the error message should give a more clear indication of what is wrong. Even if a very simple case would run in parallel, it would still not provide any indication for the reason why your specific case would not work. And very often it is not desirable or possible to avoid non-matching boundaries. Many users are running cases with non-matching boundaries in parallel. In principle this should not be a problem at all. If you have access to hotline support, I would recommend to have this investigated through the regular support channel. Best regards, Colinda