Thank you Gilles. Is there some documentation on vader btl and how I can check which (sm or vader) is being used?
On Tue, Sep 1, 2015 at 12:18 AM, Gilles Gouaillardet <gil...@rist.or.jp> wrote: > Saliya, > > OpenMPI uses btl for point to point communication, and automatically > selects the best one per pair. > Typically, the openib or tcp btl is used for inter node communication, and > the sm or vader btl for > intra node. > note the vader btl uses the knem kernel module when available for even > more optimized configurations. > > Cheers, > > Gilles > > > On 9/1/2015 5:59 AM, Saliya Ekanayake wrote: > > Hi, > > Just trying to see if there are any optimizations (or options) in OpenMPI > to improve communication between intra node processes. For example do they > use something like shared memory? > > Thank you, > Saliya > > -- > Saliya Ekanayake > Ph.D. Candidate | Research Assistant > School of Informatics and Computing | Digital Science Center > Indiana University, Bloomington > Cell 812-391-4914 > http://saliya.org > > > _______________________________________________ > 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/2015/08/27513.php > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Searchable archives: > http://www.open-mpi.org/community/lists/users/2015/09/27514.php > -- Saliya Ekanayake Ph.D. Candidate | Research Assistant School of Informatics and Computing | Digital Science Center Indiana University, Bloomington Cell 812-391-4914 http://saliya.org
