overflow problem
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. |
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. |
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