Hi,
Here is what LAM: MPI_Gatherv does.
If rank != root then it does a MPI_Send and returns.
If rank == root, it does a MPI_Recv from each rank !=root serially.
Hope this helps,
cheers,
Manish Chablani
------------------------------------------------------
Graduate Student, CS Department,
Indiana University.
Make today a LAM/MPI day !!!
http://www.lam-mpi.org/
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On Sat, 21 Sep 2002, Virgilio, Vincent wrote:
> Hello,
>
> Does LAM's MPI_Gather(v) return immediately, or does it force synch as a
> byproduct? As I understand, it could go either way.
>
> No, I am not going to depend on either behaviour.
>
> Regards,
>
> Vince Virgilio
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