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June 4, 2016, 22:26 |
Parallel Simulation Issues
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#1 |
New Member
TN
Join Date: Nov 2015
Location: TN, USA
Posts: 9
Rep Power: 10 |
Hello, OpenFoam users.
I am trying to execute a parallel simulation. However, each time, I get this error: " [rho00.local:27980] *** An error occurred in MPI_Recv [rho00.local:27980] *** on communicator MPI_COMM_WORLD [rho00.local:27980] *** MPI_ERR_TRUNCATE: message truncated [rho00.local:27980] *** MPI_ERRORS_ARE_FATAL: your MPI job will now abort -------------------------------------------------------------------------- mpirun has exited due to process rank 1 with PID 27980 on node rho00.local exiting improperly. There are two reasons this could occur: 1. this process did not call "init" before exiting, but others in the job did. This can cause a job to hang indefinitely while it waits for all processes to call "init". By rule, if one process calls "init", then ALL processes must call "init" prior to termination. 2. this process called "init", but exited without calling "finalize". By rule, all processes that call "init" MUST call "finalize" prior to exiting or it will be considered an "abnormal termination" This may have caused other processes in the application to be terminated by signals sent by mpirun (as reported here). -------------------------------------------------------------------------- [rho00.local:27976] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal [rho00.local:27976] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages " I would like helpful tips on what to add or tweak to resolve this issue. Note that the case runs well when executed using single processor. Thank you. -- Oluwafemi |
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June 8, 2016, 07:42 |
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#2 |
Member
Andreas Weber
Join Date: Jun 2014
Posts: 37
Rep Power: 11 |
Thats very little information... but at first you can always try the debugging tool:
Code:
mpirunDebug -np <n> <application> -parallel |
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