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[Ataollah Nateghi <question675256@xxxxxxxxxxxxxxxxxxxxx>]

New question #675256 on Yade:
https://answers.launchpad.net/yade/+question/675256

Hello 
I am trying to couple my 3-D LBM(Lattice Boltzmann Method) code, parallelized with MPI and written in C++, with yade. I used Cython for wrapping the C++ code. At the moment I can import my parallel and serial (without MPI header) code to python and run it. Also, I can import my serial code to Yade but when it reaches to parallel code I am not able to run it in Yade. 
The error I am getting is: 
/////////////////////////////////////////////////////////////////////////////////////////////
Welcome to Yade 2018.02b 
TCP python prompt on localhost:9000, auth cookie `dakyus'
XMLRPC info provider on http://localhost:21000
Running script ex1.py
--------------------------------------------------------------------------
It looks like opal_init failed for some reason; your parallel process is
likely to abort.  There are many reasons that a parallel process can
fail during opal_init; some of which are due to configuration or
environment problems.  This failure appears to be an internal failure;
here's some additional information (which may only be relevant to an
Open MPI developer):

  opal_error_register failed
  --> Returned value -2 instead of OPAL_SUCCESS
--------------------------------------------------------------------------
--------------------------------------------------------------------------
It looks like MPI_INIT failed for some reason; your parallel process is
likely to abort.  There are many reasons that a parallel process can
fail during MPI_INIT; some of which are due to configuration or environment
problems.  This failure appears to be an internal failure; here's some
additional information (which may only be relevant to an Open MPI
developer):

  ompi_mpi_init: opal_init_util failed
  --> Returned "(null)" (-2) instead of "Success" (0)
--------------------------------------------------------------------------
*** An error occurred in MPI_Init_thread
*** on a NULL communicator
*** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,
***    and potentially your MPI job)
[ata-B:6940] Local abort before MPI_INIT completed completed successfully, but am not able to aggregate error messages, and not able to guarantee that all other processes were killed!
/////////////////////////////////////////////////////////////////////////////////////////////
Do you have any recommendations and suggestions? 
Thanks in advance for your help. 


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