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Error in Parallel Fluent

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Old   September 2, 2015, 07:30
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LuckyTran, thank you very much for your reply.

I checked and double checked everything in the case, but finally I solved the problem by setting up the case again from cero.
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Old   February 16, 2016, 08:41
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Just a suggestion to this problem that might help someone:
I solved an exact problem when I chose to set my inlet (mass-flow) direction (direction specification method) as " Normal to boundary".
Basically as I can understand it was going backwards or something.

I hope this helps.

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Old   June 1, 2017, 23:19
Default Check your display driver
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Hi folks,

I'm going to add in my solution. I'm using Fluent 16 and I also recently had issues with the program having random crashes (both during problem setup and during a solution run). I noticed that just before crashing, the monitor would usually flick off for a second or two before coming back with Fluent gone. I had recently changed out video cards and had Fluent using the GPU for a boost (GPGPU). I suspect there was a problem with the GPU calls being misread by the new GPU, resulting in the critical failures. Once I unchecked the box, Fluent worked like normal again.

So if you are having this random crashing problem and you are using at least Fluent 15, you might check to see if it's a GPU acceleration issue.

Edit: I checked my Windows event viewer and found that it was, indeed, the display driver that is causing the problem.

Unable to recover from a kernel exception. The application must close.

Error code: 3 (subcode 2)
(pid=14880 tid=6688 cx1600.exe 64bit)
I'm less inclined to think it is the GPGPU now, as I found that the problem had more to do with running a case that involved relatively high airflow through a smallish tube. I was using the target-mass-flow-rate option when it happened. I found that turning that off and running at a lower flow rate, made things work better. It seems to have something to do with long calculation times between iterations, and some weird call problem to the display driver.

In fact, minimizing the window and letting the program run seemed to keep the error at bay. So whatever the problem is, it appears to be related to Nvidia and its drivers.

Last edited by Cypher; June 2, 2017 at 23:28. Reason: More information
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Old   June 14, 2017, 12:02
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Can anyone help me. I have similar problem. Ansys Fluent is working for about an hour and then disappears. It is leaving behind error files equal to number of threads that he is working on, displayed in notepad files but only node 0 file has a message inside:

Error [node 0] [time 14.06.2017 12:37:21] Abnormal Exit!

and an additional file with number 999999 with same text but coresponding number.
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Old   June 14, 2017, 12:04
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Please help me.
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Old   June 11, 2018, 07:52
Default fluent error 99999
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I have the facing same problem which is error 99999 in parallel fluent. Fluent disappears without any warning.
any advice and suggestions will be greatly appreciated Thanks.
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Old   October 5, 2018, 04:26
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This is also a problem I am facing. Moreover, I have been in contact with ANSYS for weeks. I have to say this is very disappointing after having invested and having worked with ANSYS all these years.

I really think ANSYS should provide all the info and support to users facing this simple yet abstract error: "Abnormal exit"!!!

The problems related to the compilation of UDF codes remain unsolved as well by the way! There is no support record nonwhatsoever in their customer portal as well!
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Old   March 22, 2019, 12:11
Thumbs up fluent error
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[QUOTE=shivakumar;545206]Thanks for the reply.. Nothing worked for me, still the fluent is spitting the same error.[/QUOTE

i also experienced in the fluent error 9999 in the log file and it causes the unexpected closing of fluent file and lost all data, i think its problem with licence if you are using academic version and you using parellel running it cause fluent error 9999 try to use serial running option sorry any kind of mistake from me iam new member of this online forum
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Old   April 21, 2020, 20:15
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Originally Posted by shivakumar View Post
I tried every settings which are discussed in this forum but couldn't solve it.
Finally, I Uninstalled ANSYS 14.0 and installed 15.0 version, the problem disappeared automatically.

Hey guys,
Am using ANSYS 2019 R1 and I am also experiencing this "Error [node 0] [time 4/22/20 0:18:37] Abnormal Exit!" error. I doubt it has something to do with the ANSYS version. Did anyone ever find a solution?
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Old   October 21, 2020, 11:16
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So, I had the same problem and was stuck for a while. But managed finally.
If anyone does get this error, then you can give it a try with this method.

1) Start a new Fluent file with serial processing.
2) Import your mesh file and run your simulation for about few iterations
3) Export the case file
4) Start a new Fluent file with parallel processing
5) Import the case file and initialise
6) Now you should be able to run the simulation without Fluent shutting down

Although this is not an eloquent solution, but helped get around the problem.

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14.5, error, fluent, node], parallel

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