[mpiwg-rma] RMA Errata

[William Gropp]

I think this is simply more evidence that the shared memory access should entirely be through the valid language-specified mechanisms, including interaction with other routines and threads that may access the same memory.  

I most definitely do not think that the load/store access to shared memory is intended to be associated only with memory that was somehow “allocated” by a particular process.  I’m not even sure how I’d define that without referring to a particular implementation.

Bill

On Jan 22, 2015, at 2:30 AM, Rolf Rabenseifner <rabenseifner at hlrs.de> wrote:

>> #1 -- The effective target rank of load/store operations is currently not
>> defined on shared memory windows.  That statement may seem like nonsense. 
>> However, it is important for situations where load/store operations interact
>> with RMA operations that do have an explicit target rank (e.g.
>> lock/unlock).  I believe this was an oversight, and we intended that the
>> load/store operations target the rank that allocated the memory.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mpi-forum.org/pipermail/mpiwg-rma/attachments/20150125/bb6a64cd/attachment-0001.html>