Good question. Maybe not an answer referring to hwloc. When managing a large NUMA machine, SGI UV, I ran the OS processes in a boot cpuset which was restricted to (AFAIR) the first 8 Cpus. On Intel architecures with E and P cores could we think of running OS on E cores only and having the batch system schedule compute tasks on P cores?
On Thu, 23 Nov 2023 at 18:31, Jirka Hladky <jhla...@redhat.com> wrote: > Hi Brice, > > I have a question about the hwloc's support for Intel's hybrid > architectures, like in Alder Lake CPUs: > https://en.wikipedia.org/wiki/Alder_Lake > > There are P (performance) and E (efficiency) cores. Is hwloc able to > detect which core is which? Can I, for example, restrict hwloc-distrib to P > cores only? > > Pseudocode: > hwloc-distrib --single --restrict <<P cores only>> <<NUM>> > > Merci beaucoup! > Jirka > > > > _______________________________________________ > hwloc-users mailing list > hwloc-users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/hwloc-users
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