runFEKO - ERROR 3623: FEKO caught an illegal instruction, code is not running on this processor
Altair EmployeeMy processors are dual Xeon E5-2540 v3 (2 processors)，I try to run FEKO at local machine.
In component launch options -> FEKO tag, if I set processers more than 1 (default is 16), output tag which in window executing runfeko show:
Creating file startup_fr_1_ada_1.fek, please be patient ...
File startup_fr_1_ada_1.fek has been created:
58 metallic triangles in free space
FEKO caught signal 4 (PID 5152)
The following message from the master process (MYID= 0):
ERROR 3623: FEKO caught an illegal instruction, code is not running on this processor
The FEKO model that I used is “startup.fek”.
Selection 'Use shared memory / OpenMP .........' is useless.
Thanks
Answers
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Hello Simba,
Altair Forum User said:Selection 'Use shared memory / OpenMP .........' is useless.
I would not recommend using that option. OpenMP is not used by many parts of the solver and for the last year (probably longer), using Intel MPI showed better performance, even on a single node. It was a very nice feature in the past that showed good performance gain when compared to MPI.
What version of Feko are you using? Please provide more info such as the version and the .out file and full stdout that is produced.
The error message is usually not associated with new CPUs, but old CPUs (AMD Athlon, Pentium II, etc.) that are not supported any more. If you have a ' Xeon E5-2540 v3' CPU, I don't expect this error. I have also not seen anyone else running into a similar problem.
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Altair Forum User said:
Hello Simba,
I would not recommend using that option. OpenMP is not used by many parts of the solver and for the last year (probably longer), using Intel MPI showed better performance, even on a single node. It was a very nice feature in the past that showed good performance gain when compared to MPI.
What version of Feko are you using? Please provide more info such as the version and the .out file and full stdout that is produced.
The error message is usually not associated with new CPUs, but old CPUs (AMD Athlon, Pentium II, etc.) that are not supported any more. If you have a ' Xeon E5-2540 v3' CPU, I don't expect this error. I have also not seen anyone else running into a similar problem.
Hi JIF,
Thanks for your suggestion.
I Restore defaults 'Component launch options' , and run FEKO.
Here are my FEKO Version(2018-2) and OS is Windows Server 2008. RAM = 64GB.
<?xml version="1.0" encoding="UTF-8"?>
I didn`t change Other settings. I installed FEKO in today morning.
And I use hotkey Alt+2 to run preFEKO, it sucessed.
But Alt+4 runFEKO, ERROR 3623 is occurred.
And here are my Model Files And Output Files in FDAM.zip
Thanks you.
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Hello Simba,
I have asked some advice from the developers since we have not seen this problem from any other users.
I'll keep you posted on progress.
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Altair Forum User said:
Hello Simba,
I have asked some advice from the developers since we have not seen this problem from any other users.
I'll keep you posted on progress.
Hi JIF,
I keep paying attention to the forum. If you need more data or output files, please contact me.
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I have sent you a private mail with some requests to try to track down the origin of the problem.
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Altair Forum User said:
I have sent you a private mail with some requests to try to track down the origin of the problem.
I upload my file by the link from your email.
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Hello,
The development team seems to think this is a bug in the Intel math library. For some reason, on some architectures, the condition number estimation seems to fail. It was previously found only on Linux parallel runs, but now we see that it sometimes also affects Windows. A fix that skips the condition number calculation will be available in the next update (should be out in about 2 weeks). I hope that you are able to update and wait for the fix.
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