Sorry, nevermind. It seems it has been generalized (found on wiki) Thanks for the help.
2015-04-14 20:50 GMT+02:00 Nick Papior Andersen <nickpap...@gmail.com>: > Thanks Andy! I will discontinue my hunt in openmpi then ;) > > Isn't SHMEM related only to shared memory nodes? > Or am I wrong? > > 2015-04-14 20:41 GMT+02:00 Andy Riebs <andy.ri...@hp.com>: > >> Nick, >> >> You may have more luck looking into the OSHMEM layer of Open MPI; SHMEM >> is designed for one-sided communications. >> >> BR, >> Andy >> >> >> On 04/14/2015 02:36 PM, Nick Papior Andersen wrote: >> >> Dear all, >> >> I am trying to implement some features using a one-sided communication >> scheme. >> >> The problem is that I understand the different one-sided communication >> schemes as this (basic words): >> MPI_Get) >> fetches remote window memory to a local memory space >> MPI_Get_Accumulate) >> 1. fetches remote window memory to a local memory space >> 2. sends a local memory space (different from that used in 1.) to the >> remote window and does OP on those two quantities >> MPI_Put) >> sends local memory space to remote window memory >> MPI_Accumulate) >> sends a local memory space to the remote window and does OP on those two >> quantities >> (surprisingly the documentation says that this only works with windows >> within the same node, note that MPI_Get_Accumulate does not say this >> constraint) >> >> ?) >> Where is the function that fetches remotely and does operation in a local >> memory space? >> >> Do I really have to do MPI_Get to local memory, then do operation >> manually? (no it is not difficult, but... ;) ) >> I would like this to exist: >> MPI_Get_Reduce(origin,...,target,...,MPI_OP,...) >> >> When I just looked at the API names I thought Get_Accumulate did this, >> but to my surprise that was not the case at all. :) >> >> -- >> Kind regards Nick >> >> >> _______________________________________________ >> users mailing listus...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26723.php >> >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/04/26724.php >> > > > > -- > Kind regards Nick > -- Kind regards Nick
