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Subject: [OMPI users] Spawn problem
From: Joao Vicente Lima (joao.lima.mail_at_[hidden])
Date: 2008-03-31 01:41:30


Hi,
sorry bring this again ... but i hope use spawn in ompi someday :-D

The execution of spawn in this way works fine:
MPI_Comm_spawn ("./spawn1", MPI_ARGV_NULL, 2, MPI_INFO_NULL, 0,
MPI_COMM_SELF, &intercomm, MPI_ERRCODES_IGNORE);

but if this code go to a for I get a problem :
for (i= 0; i < 2; i++)
{
  MPI_Comm_spawn ("./spawn1", MPI_ARGV_NULL, 1,
  MPI_INFO_NULL, 0, MPI_COMM_SELF, &intercomm[i], MPI_ERRCODES_IGNORE);
}

and the error is:
spawning ...
child!
child!
[localhost:03892] *** Process received signal ***
[localhost:03892] Signal: Segmentation fault (11)
[localhost:03892] Signal code: Address not mapped (1)
[localhost:03892] Failing at address: 0xc8
[localhost:03892] [ 0] /lib/libpthread.so.0 [0x2ac71ca8bed0]
[localhost:03892] [ 1]
/usr/local/mpi/ompi-svn/lib/libmpi.so.0(ompi_dpm_base_dyn_finalize+0xa3)
[0x2ac71ba7448c]
[localhost:03892] [ 2] /usr/local/mpi/ompi-svn/lib/libmpi.so.0 [0x2ac71b9decdf]
[localhost:03892] [ 3] /usr/local/mpi/ompi-svn/lib/libmpi.so.0 [0x2ac71ba04765]
[localhost:03892] [ 4]
/usr/local/mpi/ompi-svn/lib/libmpi.so.0(PMPI_Finalize+0x71)
[0x2ac71ba365c9]
[localhost:03892] [ 5] ./spawn1(main+0xaa) [0x400ac2]
[localhost:03892] [ 6] /lib/libc.so.6(__libc_start_main+0xf4) [0x2ac71ccb7b74]
[localhost:03892] [ 7] ./spawn1 [0x400989]
[localhost:03892] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 3892 on node localhost
exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------

the attachments contain the ompi_info, config.log and program.

thanks for some check,
Joao.