Hi, I see in v.1.7.5rc5 --cpus-per-proc is deprecated and is advised to replace by --map-by <obj>:PE=N. I've tried this but I couldn't get the expected allocation of procs.
For example I was running 2 procs on 2 nodes each with 2 sockets where a socket has 4 cores. I wanted 1 proc per node and bound to all cores in one of the sockets. I could get this by using --bind-to core: --map-by ppr:1:node --cpus-per-proc 4 -np 2 Then it'll show bindings as *[i51:32274] MCW rank 0 bound to socket 0[core 0[hwt 0]], socket 0[core 1[hwt 0]], socket 0[core 2[hwt 0]], socket 0[core 3[hwt 0]]: [B/B/B/B][./././.]* *[i52:31765] MCW rank 1 bound to socket 0[core 0[hwt 0]], socket 0[core 1[hwt 0]], socket 0[core 2[hwt 0]], socket 0[core 3[hwt 0]]: [B/B/B/B][./././.]* Is there a better way without using -cpus-per-proc as suggested to get the same effect? Thank you, Saliya -- Saliya Ekanayake esal...@gmail.com Cell 812-391-4914 Home 812-961-6383 http://saliya.org
