On Mar 14, 2014, at 6:50 AM, Jianyu Liu <jerry_...@msn.com> wrote: > Dear Sir/Madam, > > 1. If specified '--mca btl tcp,self', which interface application will run > on, use GigE adaper OR use the OpenFabrics interface in IP over IB mode > (just like a high performance GigE adapter) ?
Both - ip over ib looks just like an Ethernet adaptor > > 2. If '--mca btl tcp,self' forced application to use GigE adapter, how to > force application to use OpenFabrics interface in IP over IB mode --mca btl_tcp_if_include <ipoib-adaptor> > > 3. Does app run slower in IP over IB mode than RDMA mode? of course - IPoIB invokes the entire TCP software stack > > Appreciating your kindly help > > Jianyu > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
