[Kahnbein.Kai]

Hello,
my mpirun on Ubuntu 20.04 dosent work anymore.
I used it a few weeks back and it works good and well. I just wanted to use it a few minutes ago and it doesent work.


I decompose the case first and then i use the

mpirun -np 4 interFoam -parallel

command.
Then this message appear.

kai@Kai-Desktop:~/OpenFOAM/kai-7/run/tutorials_of/multiphase/interFoam/laminar/damBreak_stl_II/damBreak$ mpirun -np 4 interFoam -parallel
--------------------------------------------------------------------------
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: ompi_rte_init failed
  --> Returned "(null)" (-43) instead of "Success" (0)
--------------------------------------------------------------------------
--------------------------------------------------------------------------
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: ompi_rte_init failed
  --> Returned "(null)" (-43) instead of "Success" (0)
--------------------------------------------------------------------------
--------------------------------------------------------------------------
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: ompi_rte_init failed
  --> Returned "(null)" (-43) instead of "Success" (0)
--------------------------------------------------------------------------
--------------------------------------------------------------------------
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: ompi_rte_init failed
  --> Returned "(null)" (-43) 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)
[Kai-Desktop:3304] 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!
*** 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)
[Kai-Desktop:3305] 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!
*** 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)
[Kai-Desktop:3306] 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!
*** 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)
[Kai-Desktop:3307] 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!
--------------------------------------------------------------------------
Primary job  terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun detected that one or more processes exited with non-zero status, thus causing
the job to be terminated. The first process to do so was:

  Process name: [[48186,1],0]
  Exit code:    1
--------------------------------------------------------------------------
 kai@Kai-Desktop:~/OpenFOAM/kai-7/run/tutorials_of/multiphase/interFoam/laminar/damBreak_stl_II/damBreak$

Did anyone know what do to, to get it work again ?


Best regards
Kai

[Kahnbein.Kai]

Good morning,
im trying to fix this error by myself and i have a little update.
The ompi version i use is the:

kai@Kai-Desktop:~/Dokumente$ mpirun --version
mpirun (Open MPI) 4.0.3

If i create a *.c file, with the following content:

#include <mpi.h>
#include <stdio.h>

int main(int argc, char** argv) {
    // Initialize the MPI environment
    MPI_Init(NULL, NULL);

    // Get the number of processes
    int world_size;
    MPI_Comm_size(MPI_COMM_WORLD, &world_size);

    // Get the rank of the process
    int world_rank;
    MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);

    // Get the name of the processor
    char processor_name[MPI_MAX_PROCESSOR_NAME];
    int name_len;
    MPI_Get_processor_name(processor_name, &name_len);

    // Print off a hello world message
    printf("Hello world from processor %s, rank %d out of %d processors\n",
           processor_name, world_rank, world_size);

    // Finalize the MPI environment.
    MPI_Finalize();
 }

After i compile it and execute it:

kai@Kai-Desktop:~/Dokumente$ mpirun -np 4 ./hello_world -parallel
Hello world from processor Kai-Desktop, rank 0 out of 4 processors
Hello world from processor Kai-Desktop, rank 1 out of 4 processors
Hello world from processor Kai-Desktop, rank 2 out of 4 processors
Hello world from processor Kai-Desktop, rank 3 out of 4 processors

In conclusion mpi works on my computer, or not ?

Why are of dosent work with it. ?


Best regards
Kai

[Kahnbein.Kai]

Update:


I installed OpenFOAM 8 and mpirun works again....


I dont know why this error still occurs in v7

[evrenykn]

Hi,

I have the same error now.

It started when after the upgrade from 18.04 to 20.04.

SOLVED

I uninstalled mpi and reinstalled. So, it solved.

[Kahnbein.Kai]

Hey evrenykn,
which packages did you uninstalled ?

Best regards
Kai

[sjlouie91]

Originally Posted by Kahnbein.Kai

Hey evrenykn,
which packages did you uninstalled ?

Best regards
Kai

Hi, have you already solved this problem? I have the same problem as you did.

Best regards,
Jin

[Kahnbein.Kai]

Hey Jin,

yes, you can update your openfoam version to 8 or 9 or update your linux operation system and mpirun.



After an update it works flawless again.


Best regards
Kai