[Nek5000-users] Failing to converge when running in parallel

[nek5000-users at lists.mcs.anl.gov]

When running with mpi, I am currently experiencing an error with helmholtz which causes the solution to blow up quickly. The issue seems to disappear when running on lower mpi ranks. Is there a known issue which may cause this, or a work around I can employ? I haven't seen this before for similar mesh sizes. This case is a small mesh, but I plan on upscaling quite a bit. See attached for the run log and user file.

Thanks,
Jefferson Davis

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