error: Received signal SIGSEGV

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  • Last Post 10 December 2018
giovanni_ianziti posted this 29 November 2018

Hello!

Someone can help me with this error in ansys fluent? How can I solve this? I`m working with ansys 19.2

 

Node 0: Process 2532: Received signal SIGSEGV.

 

 

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Node 1: Process 4508: Received signal SIGSEGV.

 

 

 

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Node 2: Process 15656: Received signal SIGSEGV.

 

 

 

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Node 4: Process 14380: Received signal SIGSEGV.

 

 

 

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Node 5: Process 14500: Received signal SIGSEGV.

 

 

 

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Node 6: Process 10872: Received signal SIGSEGV.

 

 

 

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Node 3: Process 8280: Received signal SIGSEGV.

 

 

 

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MPI Application rank 0 exited before MPI_Finalize() with status 2

 

The fl process could not be started.

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rwoolhou posted this 29 November 2018

SIGSEV tends to be network related, but may be triggered by something else in the solver: it's not an error we can diagnose as such. What did the TUI show just above all of that lot? That text may be more useful.

kkanade posted this 30 November 2018

Please provide more information. 

Are you getting this error while opening fluent or doing iterations?

Are you able to launch fluent separately?

Can you please a simple test case to check if fluent can be launched.  

giovanni_ianziti posted this 30 November 2018

I`ve this problem when I use a UDF and I initialize the simulation.

rwoolhou posted this 30 November 2018

What does the UDF do (or rather what is it supposed to do)?  

giovanni_ianziti posted this 30 November 2018

I`m trying to simulate mass and energy transfer during evaporation-condensation (from water to vapour)

rwoolhou posted this 03 December 2018

Does the model work if the UDF is off?

kkanade posted this 04 December 2018

Can you please use inbuilt functions for evaporation and condensation instead of udf?

giovanni_ianziti posted this 04 December 2018

yes, the model work without the UDF.

kkanade posted this 05 December 2018

Then it may be udf. As ANSYS employee, we dont debug users udf. So you may need to debug it on your own. 

rwoolhou posted this 10 December 2018

Given that work through the UDF and see what data is needed where, and then check that it's available. Whilst staff can't debug UDFs the community can, so feel free to post the code and people can comment/advise. 

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