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Error: "MPI Application rank 0 exited before MPI_finalization() with status 2"?

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Old   December 9, 2018, 10:13
Question Error: "MPI Application rank 0 exited before MPI_finalization() with status 2"?
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Dear all,

I have a Fluent problem where I defined material properties using a simple UDF, like:

DEFINE_PROPERTY(thermal_conductivity,cell,thread)
{
real tc, T;
T = C_T(cell,thread);

if(T <= 300)
tc = 1;
else
tc = 2;

return tc;
}

When I use this UDF, I have got this error: "MPI Application rank 0 exited before MPI_finalization() with status 2". Can anybody five me ant advice how to solve this error please!

My model works fine without UDF.

Thanks,
Malekan
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Old   December 9, 2018, 22:53
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Alexander
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did you put
Code:
#include "udf.h"
in the header of your UDF?

best regards
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Old   December 10, 2018, 09:02
Default Yes, I did
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Yes , I did that. In fact, compilation part of the code does not have any problem. When I try to initialize the problem, I receive that error.

Best,
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Old   December 10, 2018, 19:58
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Try to initialize first, than load UDF

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Old   December 12, 2018, 09:14
Default Initialization needs udfs
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I need udfs to define material properties, how can I do initialization without loading udfs?
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Old   December 12, 2018, 10:14
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You don't need material properties to initialize anything
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Old   June 10, 2019, 22:14
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I've had the same error when using fluent in workbench. I was trying FSI and the coupling interface shows this error.

My solution is to delete the fluent module and reset a case. Though the same problem occurred after several times of interrupt and restart, once all parameters are determined and the case is reset, the program also works.
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