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/D9NA

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