Yes, in general, hwloc (from which lstopo comes) is the thing to use for anything to do with CPU/memory topology, e.g. pinning to logical cores rather than phys

Yes, in general, hwloc (from which lstopo comes) is the thing to use for anything to do with CPU/memory topology, e.g. pinning to logical cores rather than physical ones whose numbering can even change with BIOS updates.