CFD Online URL
[Sponsors]
Home > Forums > CFX

overflow problem

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By ghorrocks

Reply
 
LinkBack Thread Tools Display Modes
Old   November 3, 2011, 12:52
Default overflow problem
  #1
Senior Member
 
Join Date: Jul 2010
Posts: 142
Rep Power: 6
keeper is on a distinguished road
hello everyone,

================================================== ====================
OUTER LOOP ITERATION = 1 CPU SECONDS = 1.198E+03
----------------------------------------------------------------------
| Equation | Rate | RMS Res | Max Res | Linear Solution |
+----------------------+------+---------+---------+------------------+
| Wallscale | 0.00 | 2.2E-03 | 2.9E-02 | 29.3 8.9E-02 OK|
+----------------------+------+---------+---------+------------------+

Parallel run: Received message from slave
-----------------------------------------
Slave partition : 3
Slave routine : ErrAction
Master location : RCVBUF,MSGTAG=1033
Message label : 001100279
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Floating point exception: Overflow |
| |
| |
| |
| |
| |
+--------------------------------------------------------------------+

Parallel run: Received message from slave
-----------------------------------------
Slave partition : 3
Slave routine : ErrAction
Master location : RCVBUF,MSGTAG=1033
Message label : 001100279
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine FPX: C_FPX_HANDLER |
| |
| |
| |
| |
| |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| The ANSYS CFX solver exited with return code 1. No results file |
| has been created. |
+--------------------------------------------------------------------+

End of solution stage.




I have a question. I always recieve this error from the solver and my question is:

Does this message mean something certain or it is common message and can express any "bad setting"???


Thank all of you for any answers.
keeper is offline   Reply With Quote

Old   November 3, 2011, 18:46
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 9,859
Rep Power: 78
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
I need to write an FAQ on this, answered it hundreds of times.

Overflow error means the solver has diverged big-time. You need to improve the numerical stability. This could be improve mesh quality, better initial conditions, improperly set boundary conditions or physics. On rare occasions you need double precision numerics.
Mark Nguyen likes this.
ghorrocks is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
area does not match neighbour by ... % -- possible face ordering problem St.Pacholak OpenFOAM 9 November 22, 2011 11:02
Problem in implementing cht tilek CFX 3 May 8, 2011 09:39
Adiabatic and Rotating wall (Convection problem) ParodDav CFX 5 April 29, 2007 20:13
overflow problem bruno CFX 2 November 26, 2006 17:28
Is this problem well posed? Thomas P. Abraham Main CFD Forum 5 September 8, 1999 15:52


All times are GMT -4. The time now is 01:10.