[Trilinos-Users] MueLu stucks with subcommunicators

[Frey Matthias (PSI)]

Hi

I use Tpetra and MueLu in a rather larger project where MueLu is used to solve Ax=b. It runs fine in 'normal' parallel execution. However, when I want to run several instances (e.g. when I use a genetic algorithm for optimization) by splitting the communicator MueLu gets stuck in the SetupHierarchy call. I checked the communicators and they are fine.

Has anyone experienced the same?

I'm using Trilinos release 12.10.1

Best,
Matthias
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