[MPICH] MPI_Comm_spawn and hosts

Wei-keng Liao wkliao at ece.northwestern.edu
Fri Aug 24 14:14:55 CDT 2007

I have a simple program that calls MPI_Comm_spawn() to spawn a group of 
MPI processes. I found that the hosts running parent and child groups are 
overlapped. I ran The job ran though PBS with enough compute nodes 
allocated for parents and children to be disjoint.

How do I ensure the hosts running parents and children are not overlapped?


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