Could you tell us what version of Open MPI you are using? It would
help us to provide you with advice.
Thanks
Ralph
On Mar 9, 2009, at 2:18 AM, Tee Wen Kai wrote:
Hi,
I have a program that allow user to enter their choice of operation.
For example, when the user enter '4', the program will enter a
function which will spawn some other programs stored in the same
directory. When the user enter '5', the program will enter another
function to request all spawned processes to exit. Therefore,
initially only one process which act as the controller is spawned.
My MPI_Info_create and MPI_Comm_spawn_multiple are called in a
function. Everything is working fine except when I tried to free the
MPI_Info in the function by calling MPI_Info_free, I have
segmentation fault error. The second problem is when i do the
spawning once and exit the controller program with MPI_Finalize, the
program exited normally. But when spawning is done more than once
and exit the controller program with MPI_Finalize, there is
segmentation fault. I also realize that when the spawed processes
exit, the 'orted' process is still running. Thus, when multiple
MPI_Comm_spawn_multiple are called, there will be multiple 'orted'
processes.
Thank you and hope someone has a solution to my problem.
Regards,
Wenkai
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