On 8/15/22 00:50, Marco Nawijn wrote:

Just for information, when you run the example with MPI on 1 processor (so -np 1), the process runs fine. Any value >1 results in this error. The error itself makes sense because it requests a massive amount of memory (I am running on a laptop at the moment). A quick fix (based on what I found on the internet) is to downgrade the version of Metis. However, ideally for Deal-II newbies using straightforward laptops/workstations, it would be nice to just run `spack install dealii` and it just works.

If there is anything I can do to help, I am more than willing to.

The question is whether METIS' excessive memory allocation is because of a bug in METIS, or because we call it in a way it doesn't expect. Did your search for the source of the error indicate anything to this effect?

Best
 W.

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Wolfgang Bangerth          email:                 [email protected]
                           www: http://www.math.colostate.edu/~bangerth/

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