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Error during calculating Process
Posted: Tue Aug 24, 2010 11:35 pm
by A. Qohhar
Hi...
This is my first use of code saturne, and i use version 1.3.3. I made a simple geometry, and make a simple calculation. For now, i just want to see a flow pattern from inlet to outlet of my geometry, and i use all parameter uses in case 1 from tutorial file.
But, it alway ended up in error, and i can't find what caused it. Please, anybody can help me. Enclosed i send the mesh and xml file i used.
Thank you for the help, and forgive me for my poor english.
Best regard
Qohhar
Re: Error during calculating Process
Posted: Wed Aug 25, 2010 6:09 pm
by Yvan Fournier
Hello,
Could you also post your error log ?
Regards,
Yvan
Re: Error during calculating Process
Posted: Fri Aug 27, 2010 3:35 pm
by A. Qohhar
Hello Yvan,
I'm not quite sure what exactly did you meant (it's just because i don't know where to find the error log), but i attach three files from RESU folder.
Hope those three file were the correct one.
Regards,
Qohhar
Re: Error during calculating Process
Posted: Fri Aug 27, 2010 7:47 pm
by James McNaughton
Hi, it's just a problem with the array size so the calculation won't start.
At the end of your listing file:
SUBROUTINE CALLING RASIZE : MEMTRI
MEMORY NEEDED RA (NUMBER OF REALS) = 5210839
AVAILABLE = 5000000
----> INCREASE LONGRA IN THE SCRIPT = 210839 REAL
so you just need to increase LONGRA. If you go look at the lance file in the SCRIPTS folder then you can change it there.
Re: Error during calculating Process
Posted: Tue Aug 31, 2010 6:35 am
by A. Qohhar
Hi...
Thank you James, for the solution. It finally ran. Unfortunately, another error appear, and i'm totally blind 'bout error messages :(
======
====
Phase 1 incoming flow detained for 890 outlet faces on 1948
SIGFPE signal (floating point exception) intercepted!
==========
For detailed, listing file attached
At last, is there any refference that can explain kinds of error, and the solution?? since this is my first experience using code_saturne.
Thank you
regards,
Qohhar
Re: Error during calculating Process
Posted: Tue Aug 31, 2010 1:08 pm
by Yvan Fournier
Hello,
The calculation seems to start diverging after iteration 5. As you are using the steady algorithm, you may try to modify its parameters, such as the relaxation parameter. The difficulty is probably mesh-related, so you may also try other gradient reconstruction methods than the iterative reconstruction (try least squares with extended neighborhood).
If you still have issues, you may send us your mesh or calculation directory using a large file exchange service.
Best regards,
Yvan