[OMPI users] hwloc: Topology became empty, aborting!

On a VPS I tested my build of hwloc-2.9.2 by running lstopo: ./lstopo hwloc: Topology became empty, aborting! Segmentation fault On a GCP n1-standard-2 a similar build (GCC 12.2 vs. 13.2) seemed to work: ./lstopo hwloc/nvml: Failed to initialize with nvmlInit(): Driver Not Loaded Machine (7430MB

Re: [OMPI users] hwloc: Topology became empty, aborting!

Hello This is a hwloc issue, the mailing list is hwloc-us...@lists.open-mpi.org (please update the CCed address if you reply to this message). Try building with --enable-debug to get a lot of debug messages in lstopo. Or run "hwloc-gather-topology foo" and send the resulting foo.tar.gz (you

Re: [OMPI users] hwloc: Topology became empty, aborting!

Hi Brice, Thank you - I was unaware there was an hwloc-users list. Regards, Max --- On Tue, Aug 01, 2023 at 05:11:29PM +0200, Brice Goglin wrote: > Hello > > This is a hwloc issue, the mailing list is hwloc-us...@lists.open-mpi.org > (please update the CCed address if you reply to this messag