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An MPI process has executed an operation involving a call to the
"fork()" system call to create a child process.  Open MPI is currently
operating in a condition that could result in memory corruption or
other system errors; your MPI job may hang, crash, or produce silent
data corruption.  The use of fork() (or system() or other calls that
create child processes) is strongly discouraged.  

The process that invoked fork was:

  Local host:          v1383 (PID 12094)
  MPI_COMM_WORLD rank: 6

If you are *absolutely sure* that your application will successfully
and correctly survive a call to fork(), you may disable this warning
by setting the mpi_warn_on_fork MCA parameter to 0.
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[v1383:12063] 7 more processes have sent help message help-mpi-runtime.txt / mpi_init:warn-fork
[v1383:12063] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
close failed in file object destructor:
close failed in file object destructor:
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mpirun has exited due to process rank 4 with PID 12092 on
node v1383 exiting without calling "finalize". This may
have caused other processes in the application to be
terminated by signals sent by mpirun (as reported here).
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