Hello,Maybe we have something that assumes that the first NUMA node on Linux is #0. And something is wrong in the disallowed case anyway since the NUMA node physical number is 0 instead of 2 there.
Can you run "hwloc-gather-topology lpar" and send the resulting lpar.tar.bz2? (send it only to me if it's too big or somehow confidential).
Thanks Brice Le 26/04/2021 à 16:40, Jirka Hladky a écrit :
Hi Brice, how are you doing? I hope you are fine. We are all well and safe.I have been running hwloc on IBM Power LPAR VM with only 1 CPU core and 8 PUs [1]. There is only one NUMA node. The numbering is however quite strange, the NUMA node number is "2". See [2].hwloc reports "Topology does not contain any NUMA node, aborting!" $ lstopo Topology does not contain any NUMA node, aborting! hwloc_topology_load() failed (No such file or directory).Could you please double-check if this behavior is correct? I believe hwloc should work on this HW setup.FYI, we can get it working with --disallowed option [3] (but I think it should work without this option as well)Thanks a lot! Jirka [1] $ lscpu Architecture: ppc64le Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 8 Core(s) per socket: 1 Socket(s): 1 NUMA node(s): 1 [2] There is ONE NUMA node with the number "2": $ numactl -H available: 1 nodes (2) node 2 cpus: 0 1 2 3 4 5 6 7 node 2 size: 7614 MB node 2 free: 1098 MB node distances: node 2 2: 10 [3] $ lstopo --disallowed Machine (7615MB total) Package L#0 NUMANode L#0 (P#0 7615MB) L3 L#0 (4096KB) + L2 L#0 (1024KB) + Core L#0 L1d L#0 (32KB) + L1i L#0 (48KB) Die L#0 + PU L#0 (P#0) PU L#1 (P#2) PU L#2 (P#4) PU L#3 (P#6) L1d L#1 (32KB) + L1i L#1 (48KB) PU L#4 (P#1) PU L#5 (P#3) PU L#6 (P#5) PU L#7 (P#7) Block(Disk) "sda" Net "env2" _______________________________________________ hwloc-devel mailing list hwloc-devel@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/hwloc-devel
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