[renatovj]

Hello my friends,

Need your help very much!

I`m running a case of a simple cylinder with water flowing around it (Linux,2D,lam,transient Fluent 13.0).There`s a UDF hooked to the case and I`m tryinng to run it in batch mode.The following errors occur only when the UDF is hooked to the case:

Comand:
venturatto/teste_FSI_cilindro_2% fluent 2ddp -g -t1 < parameters.txt > output_cylinder_FSI_2_UDF
Error:
Primitive Error at Node 0: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (lnamd64).

No such file or directory
/opt/home/venturatto/teste_FSI_cilindro_2/libudf/lnamd64/2ddp_node/libudf.so

Error: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (lnamd64).

No such file or directory
/opt/home/venturatto/teste_FSI_cilindro_2/libudf/lnamd64/2ddp_host/libudf.so
Error Object: #f

================================================== ============================
Stack backtrace generated for node id 0 (pid = 28552) on signal 11 :
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x13f2ff6]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x13f6e68]
/lib64/libc.so.6(+0x34e10)[0x7f8ba3332e10]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(user_sources+0x49f)[0x4ab70f]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x833584]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x84a7f0]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(Solve_V+0x155)[0x830ee5]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x82f5fe]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(Models_Send_update_solve+0x194)[0x6af3d4]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x5c794b]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(Flow_Iterate+0xa2)[0x5c68c2]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0[0x64d8db]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(eval+0x7cc)[0x140841c]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(PRF_Command_Start+0x110c)[0x67f7ac]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(PRF_Node_repl+0x2e)[0x67dcde]
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp_node/fluent_mpi.13.0.0(main+0x332)[0xf62482]
Check the file fluenterror.log for details.
Please include this information with any bug report you file on this issue!
================================================== ============================


Primitive Error at Node 0: received Segmentation Violation


Error: Compute node encountered error

Error Object: #f

I tried to substitute the specification of the number of cores (-t1) for:
Command:
venturatto/teste_FSI_cilindro_2% fluent 2ddp -g -i < parameters.txt > output_cylinder_FSI_2_UDF

Which gives the error:

venturatto/teste_FSI_cilindro_2% fluent 2ddp -g -i < parametros.txt > saida_cilindro_FSI_2_UDF
/opt/cfd/fluent13/v130/fluent/fluent13.0.0/cortex/lnamd64/cortex.13.0.0 -f fluent -g -newcx (fluent "2ddp -r13.0.0 -path/opt/cfd/fluent13/v130/fluent")
Starting /opt/cfd/fluent13/v130/fluent/fluent13.0.0/lnamd64/2ddp/fluent.13.0.0 -cx sgi3:57287:44763

Welcome to ANSYS FLUENT 13.0.0

Copyright 2010 ANSYS Inc.
All Rights Reserved. Unauthorized use, distribution or duplication
is prohibited. ANSYS and FLUENT are trademarks or registered trademarks
of ANSYS, Inc. or its subsidiaries in the United States or other countries.

Build Time: Oct 11 2010 23:42:53 EDT Build Id: 10703
Loading "/opt/cfd/fluent13/v130/fluent/fluent13.0.0/lib/flprim.dmp.1119-64"
Done.

Error: Divergence detected in AMG solver
Error Object: #f

Please, any ideas?

[renatovj]

I found a solution!

The problem occurred because I had a UDF of the EXECUTE_ON_DEMAND type, used to initialize the variables of the case.

I was not telling Fluent to execute this UDF in my "parameters.txt" file.