[mpich-discuss] Deadlock in MPI_Ibarrier over ch3:sock

[Pavan Balaji]

On 01/23/2013 02:44 PM US Central Time, Dave Goodell wrote:
>> Are you still supporting ch3:sock?
> 
> We are, although we have chosen not to support a small subset of the
> MPI-3 functionality in ch3:sock, such as shared memory windows.

It's a pedantic detail, but MPI-3 says that shared memory is supported
on a communicator returned by Comm_split_type.  For ch3:sock, we return
MPI_COMM_SELF, so technically we do support shared memory windows, but
only on that process :-D.

 -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji