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From: Charles Shuller (charles.shuller_at_[hidden])
Date: 2006-04-05 14:24:51


I encountered an error with send/recv pairs on AMD64. The first send
completes successfully, but subsequent send/recv pairs hang. I also
believe that MPI_Bcast also hangs under simmilar conditions, but have
not created an explicit testcase for this (it happened in the code I
was working on). Both machines are running AMD64 processors.

The problem only manifests when the tasks are on seperate machines.

The problem does not occur on x86 (32-bit) machines.

Thanks!

Charles Shuller