Le 23/11/2023 à 19:29, Jirka Hladky a écrit :
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_LakeThere 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>>
HelloOn machines with 2 kinds of cores (P and E), P are the second cpukinds in hwloc (cpukinds are ordered by energy-efficiency first):
$ lstopo --cpukinds CPU kind #0 efficiency 0 cpuset 0x000ff000 CoreType = IntelAtom CPU kind #1 efficiency 1 cpuset 0x00000fff CoreType = IntelCoreThese cpusets may be returned by hwloc-calc either by index or by info attribute:
$ hwloc-calc --cpukind 1 all 0x00000fff $ hwloc-calc --cpukind CoreType=IntelCore all 0x00000fffSo just pass --restrict $(hwloc-calc --cpukind 1 all) to hwloc-distrib and you should be good.
Brice
OpenPGP_signature
Description: OpenPGP digital signature
_______________________________________________ hwloc-users mailing list hwloc-users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/hwloc-users
