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Old   May 4, 2005, 12:04
Default Solver quits without results saying Return Code 15
  #1
Kramer
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Hi there,

i am working on a student research project dealing with the flow around a wind rotor. I am using a mesh with about 1 Million Hexas constisting of two domains, one rotating and one still. My problem is that the solver quits randomly (sometimes after 3 iteration another time after 15) with Return Code 15. Does anyone know what this means?

Please help.

Kind Regards
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Old   May 4, 2005, 13:29
Default Re: Solver quits without results saying Return Cod
  #2
Juan Carlos
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Hi Kramer,

What operating system are you working on? In Unix (AIX,IRIX,SUNOS,HPUX,LINUX) 15 can be a SIGTERM from the system or at login out..

Regards, Juan Carlos
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Old   May 4, 2005, 14:24
Default Re: Solver quits without results saying Return Cod
  #3
Kramer
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Thanks for your hint, but im running a windows xp based system (2 Nodes, 1 x Athlon XP 2,2 GHZ 2GB RAM,1 x Pentium 4 3Ghz 2 GB Ram). I was able to make a run with 256 iterations and again there was the error message from the solver. Return Code 15?? Is there something like a list for the different Codes XX where it is described what they mean ?
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Old   May 4, 2005, 14:52
Default Re: Solver quits without results saying Return Cod
  #4
Juan Carlos
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Hi,

That code comes from the OS (windows in your case).. CFX usually writes messages of different kinds.

You can always contact CFX support.. Good luck, Juan Carlos
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Old   May 5, 2005, 07:08
Default Re: Solver quits without results saying Return Cod
  #5
Kramer
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Well, it doesnt seem to be a windows code since it is the solver saying:

+--------------------------------------------------------------------+ An error has occurred in cfx5solve:

The CFX-5 solver exited with return code 15. No results file has been created. +--------------------------------------------------------------------+

End of solution stage.

How should the solver reveal a OS-message? What do You think?
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Old   May 5, 2005, 18:55
Default Re: Solver quits without results saying Return Cod
  #6
Glenn Horrocks
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Hi,

Can you post the last page of the output file? That might help diagnose the problem.

Glenn Horrocks
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Old   May 6, 2005, 04:02
Default Re: Solver quits without results saying Return Cod
  #7
Kramer
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Hi Glenn,

here are the last two iterations. The simulation crashes everytime at a different iteration number, so i don't think that it is a problem with the mesh,Pre or BC. Do you know that behavior?

OUTER LOOP ITERATION = 186 CPU SECONDS = 4.79E+04

---------------------------------------------------------------------

| Equation | Rate | RMS Res | Max Res | Linear Solution |

----------------------+------+---------+---------+------------------+

| U-Mom | 0.99 | 2.9E-03 | 3.5E-02 | 3.0E-04 OK|

| V-Mom | 1.00 | 3.6E-03 | 1.2E-01 | 2.3E-04 OK|

| W-Mom | 1.00 | 3.1E-03 | 9.3E-02 | 2.5E-04 OK|

| P-Mass | 0.99 | 2.2E-05 | 1.7E-03 | 9.5 3.5E-02 OK|

+----------------------+------+---------+---------+------------------+

| K-TurbKE | 0.98 | 1.3E-02 | 3.3E-01 | 5.8 7.7E-08 OK|

| E-Diss.K | 0.97 | 4.7E-03 | 2.9E-01 | 11.7 3.5E-08 OK|

+----------------------+------+---------+---------+------------------+

================================================== ===================

OUTER LOOP ITERATION = 187 CPU SECONDS = 4.81E+04

----------------------------------------------------------------------

| Equation | Rate | RMS Res | Max Res | Linear Solution |

+----------------------+------+---------+---------+------------------+

| U-Mom | 0.99 | 2.9E-03 | 3.5E-02 | 3.0E-04 OK|

| V-Mom | 1.00 | 3.6E-03 | 1.2E-01 | 2.3E-04 OK|

| W-Mom | 1.00 | 3.1E-03 | 9.1E-02 | 2.5E-04 OK|

| P-Mass | 0.99 | 2.2E-05 | 1.7E-03 | 9.5 3.5E-02 OK|

+----------------------+------+---------+---------+------------------+

| K-TurbKE | 0.98 | 1.3E-02 | 3.2E-01 | 5.8 7.7E-08 OK|

| E-Diss.K | 0.97 | 4.6E-03 | 2.9E-01 | 11.7 3.5E-08 OK

+----------------------+------+---------+---------+------------------+

================================================== ====================

OUTER LOOP ITERATION = 188 CPU SECONDS = 4.84E+04

----------------------------------------------------------------------

| Equation | Rate | RMS Res | Max Res | Linear Solution |

+----------------------+------+---------+---------+------------------+

+--------------------------------------------------------------------+

| An error has occurred in cfx5solve: |

| |

| The CFX-5 solver exited with return code 15. No results file has |

| been created.

|

+--------------------------------------------------------------------+

End of solution stage.

Kind Regards.

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