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+1 vote
by (630 points)

Before, I asked a very similar question, but then the Reason was -8, while now it is -9. The solution for -8 was to add a ground to my bidomain simulations. Now, I have a ground and I use the configure option "download-hypre" for the PETSc configuration, as was the answer for another similar question on this forum.

What is the problem here and how can I solve it?

Thank you a lot in advance!


1 Answer

0 votes
by (7.8k points)

Based on:

you seem to have NaN or Inf in your linear system. Most likely this is due to a bad input mesh.

With the latest commit, I have added a index-to-string conversion for the Converged/Diverged reason index of PETSc. This should help identifying future issues.

Best, Aurel
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