[Mpi3-hybridpm] Hybrid WG meeting at the Forum
Pavan Balaji
balaji at mcs.anl.gov
Tue Dec 7 08:08:00 CST 2010
On 12/07/2010 07:58 AM, Douglas Miller wrote:
> In order to ensure all nodes get the same memory segment, they all have
> to use the same "key". At least if this is implemented on Unix SysV or
> POSIX shmem. Then there's the possibility of some nodes allocing on a
> sub-comm first, etc. I think its just avoiding a lot of potential
> complications and don't see what the downside is.
In that sense, isn't the communicator a "key"?
-- Pavan
--
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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