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Editorial Team
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Asked: 2026-05-31T08:31:45+00:00

————————————————————————– MPI_ABORT was invoked on rank 2 in communicator MPI_COMM_WORLD with errorcode 1. NOTE:

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       --------------------------------------------------------------------------
        MPI_ABORT was invoked on rank 2 in communicator MPI_COMM_WORLD 
        with errorcode 1.

        NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
         You may or may not see output from other processes, depending on
         exactly when Open MPI kills them.
           --------------------------------------------------------------------------
          --------------------------------------------------------------------------
        mpirun has exited due to process rank 2 with PID 19175 on
         node mosura15 exiting without calling "finalize". This may
            have caused other processes in the application to be
            terminated by signals sent by mpirun (as reported here).

I am running a simulation. In MPI command, I found the above error. What is reason behind this. How can I resolve this ?

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1 Answer

  1. Editorial Team

    It looks like the 3rd instance of your program (id 2) crashed and didn’t call MPI_Finalize() to close down, and so mpirun closed all the other copies of the program as well. Is there something causing that particular node to crash, or is it a different node each time?

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