Hi Jody I don't believe we have exposed our shared memory system for general use - it's pretty deeply buried in the messaging system. We do have a branch where some of us are playing with an ORTE-level shared memory system for precisely this kind of use-case, but it isn't ready yet.
On Apr 16, 2012, at 7:52 AM, jody wrote: > Hi > > In my application i have to generate a large block of data (several > gigs) which subsequently has to be accessed by all processes (read > only), > Because of its size, it would take quite some time to serialize and > send the data to the different processes. Furthermore, i risk > running out of memory if this data is instantiated more than once on > one machine. > > Does OpenMPI offer some way of sharing data between processes (on the > same machine) without needing to send (and therefore copy) it? > > Or would i have to do this by means of creating shared memory, writing > to it, and then make it accessible for reading by the processes? > > Thank You > Jody > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
