Hello Liam dmidecode is usually reserved to root only because it uses SMBIOS or whatever hardware/ACPI/... tables. Those tables are read by the Linux kernel and exported to non-root users in sysfs:
$ cat /sys/bus/pci/devices/0000:ae:0c.6/numa_node 1 However this file isn't that good because some old platforms had PCI buses attached to 2 NUMA nodes (cannot be exposed in the above sysfs "numa_node" file). So we rather read the list of local CPUs: $ cat /sys/bus/pci/devices/0000:ae:0c.6/local_cpus 2222,22222222,22222222 $ cat /sys/bus/pci/devices/0000:ae:0c.6/local_cpulist 1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61,65,69,73,77 Brice Le 03/02/2020 à 17:46, Murphy, Liam a écrit : > > Newbie question. > > > > I know that dmidecode uses the num_node files under > /sys/devices/pcie…, but hwloc does not seem > > to use the same mechanism to determine which PCI devices are on which > numa node? From which > > file is it deriving the information? > > > > Regards, > > Liam > > > _______________________________________________ > hwloc-users mailing list > hwloc-users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/hwloc-users
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