[Trilinos-Users] MueLu stucks with subcommunicators

Jonathan Hu jhu at sandia.gov
Mon Mar 4 15:23:18 EST 2019

Hi Matthias,

     Could you try MueLu from the master branch on github? Release 
12.10.1 is fairly old.


Frey Matthias (PSI) wrote on 03/04/2019 12:05 PM:
> 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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