The core counter spans the entire node, not just one socket. So one socket will have 0,2,4,6 and the other will have 1,3,5,7
> On Dec 6, 2015, at 10:44 AM, Carl Ponder <cpon...@nvidia.com> wrote: > > On 12/06/2015 11:28 AM, Ralph Castain wrote: >> You want "-bind-to socket -slot-list=0,2,4,6" >> Or if you want each process bound to a single core on the socket, then >> change “socket” to “core” in the above >> As for host/rankfile - we do indeed support just asking for “the next empty >> node” in the syntax, though it depends on the OMPI version you are using >> (it’s in the 1.8 series, but not 1.6, IIRC) > Ralph -- I have two sockets on each node, won't it bind to 0,2,4,6 on both of > them? > I only want the slots on socket 0. > I'm using OpenMPI 1.10.1. How do I specify un-named nodes in the rankfile? > Thanks, > > Carl > > This email message is for the sole use of the intended recipient(s) and may > contain confidential information. Any unauthorized review, use, disclosure > or distribution is prohibited. If you are not the intended recipient, please > contact the sender by reply email and destroy all copies of the original > message.
