Likely similar to https://github.com/open-mpi/hwloc/issues/517
Put this in your environment to avoid the issue export HWLOC_COMPONENTS=-gl I'll enable this by default in the next release Brice Le 18/05/2026 à 21:39, 'Mike Rosing' via Open MPI users a écrit :
I tried to run hello_usempi.f90 and found it hangs on MPI_INIT(). In the process of creating the outputs for a bug report, Ubuntu hangs on lstopo. This bug has been reported to Canonical. Has anyone else seen either of these problems on Ubuntu 26.04? My suspicion is that it is the same problem. I see no point in putting in an MPI bug report if it is not an MPI problem.[Bug 2150519] [NEW] lstopo halts forever without showing result 27 Apr 2026 Mike Rosing Madison WI USA Elliptic Curve Crypto: http://mng.bz/D9NATo unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
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