mpi - mpirun 命令错误

Question

       --------------------------------------------------------------------------
        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).

我正在运行模拟。在 MPI 命令中，我发现了上面的错误。这背后的原因是什么。我该如何解决这个问题？

Answer 1

看起来您的程序的第 3 个实例 (id 2) 崩溃了并且没有调用 MPI_Finalize() 来关闭，因此 mpirun 也关闭了该程序的所有其他副本。是否有什么原因导致该特定节点崩溃，或者每次都是不同的节点？