On Jun 4, 2013, at 8:20 AM, W Spector <w6ws_at_[hidden]> wrote:
>> Yes, this is true -- MPI_THREAD_MULITPLE support is fairly incomplete in Open MPI.
> One would hope a simple MPI_Barrier call would work though...
Underneath, I am pretty sure that barrier is doing an MPI_WAITALL.
Nathan actually just agreed to look at this bug today.
> My home linux system is nothing sophisticated. Just a quad core I-5 on a Intel DP55WB motherboard and Ubuntu Linux. No fancy interconnects.
I'm guessing it's a double lock of some kind (i.e., a coding error in OMPI); not related to your network.
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