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

[Jeff Hammond]

> We intend to provide support for a default MPI_COMM_SELF implementation of
> shared memory windows in ch3.  Shared memory windows are fully implemented
> in Nemesis, but not ch3, so if you were to try using them right now with
> sock, you would get a not implemented error.  If anyone needs this
> (presumably for portability), I'd be happy to bump the priority on ticket
> #1666.

How is this not a no-op implementation for MPI_COMM_SELF?  All you
need to support is load-store on local memory, no?

Jeff


-- 
Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
http://www.linkedin.com/in/jeffhammond
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