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

malekan.cfd · December 9, 2018, 11:13

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

AlexanderZ · December 9, 2018, 23:53

did you put

Code:

#include "udf.h"

in the header of your UDF?

best regards

malekan.cfd · December 10, 2018, 10:02

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,

AlexanderZ · December 10, 2018, 20:58

Try to initialize first, than load UDF

best regards

malekan.cfd · December 12, 2018, 10:14

I need udfs to define material properties, how can I do initialization without loading udfs?

LuckyTran · December 12, 2018, 11:14

You don't need material properties to initialize anything

hongzhilin · June 10, 2019, 23:14

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.

December 9, 2018, 11:13	Error: "MPI Application rank 0 exited before MPI_finalization() with status 2"?	#1
malekan.cfd Member Join Date: Dec 2017 Posts: 34 Rep Power: 9	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

December 9, 2018, 23:53		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	did you put Code: #include "udf.h" in the header of your UDF? best regards

December 10, 2018, 10:02	Yes, I did	#3
malekan.cfd Member Join Date: Dec 2017 Posts: 34 Rep Power: 9	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,

December 12, 2018, 10:14	Initialization needs udfs	#5
malekan.cfd Member Join Date: Dec 2017 Posts: 34 Rep Power: 9	I need udfs to define material properties, how can I do initialization without loading udfs?

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December 10, 2018, 20:58		#4
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	Try to initialize first, than load UDF best regards

December 12, 2018, 11:14		#6
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	You don't need material properties to initialize anything

June 10, 2019, 23:14		#7
hongzhilin New Member Etienne Lin Join Date: Aug 2017 Location: la Chine Posts: 4 Rep Power: 9	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.