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From: Yuan, Huapeng (yuanh_at_[hidden])
Date: 2007-08-10 15:57:57


Can I use openmpi API like MPI_Reduce or MPI_Gather to synchronize
multiple theads in a process?

In my test in redhat linux, MPI_Comm_rank return 0 for all threads in
the same process. If I want to use the MPI functions like MPI_Reduce or
MPI_Gather, the rank number shoule be different for each threads.

Do you have any suggestions? Thanks.