[mpiwg-rma] Fwd: [MPI Forum] #456: MPI 3.0 Errata: MPI RMA synchronization for MPI shared memory

Rolf Rabenseifner rabenseifner at hlrs.de
Wed Aug 13 18:00:55 CDT 2014

Dear Bill and whole RMA working Group,

I tried to bring all my knowledge together to solve the 
"shared memory synchronization problem".

I know, that you Bill also wanted to solve this problem.
Please take my ticket 
as a basis or stone quarry or ... .

For me, it is important to really find all locations that must 
be touched to solve the Problem and to have a consistent solution.

I hope that I found all of them and my solution is consistent. 

The solution is free of technical implementation internals,
i.e., the local memory barriers are only mentioned in a rationale.

I hope you all enjoy the proposal and it is a basis for
further improvements.

Best bregards

Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner at hlrs.de
High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
Nobelstr. 19, D-70550 Stuttgart, Germany . . . . (Office: Room 1.307)

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