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Resolve "Use BCGS_AMG_SSOR solver for finite volume methods"

Lukas Riedel requested to merge 169-use-bcgs_amg_ssor-solver-for-finite-volume-methods into master

What does this MR do?

Switch to the BCGS_AMG_SSOR linear solver backend for finite volume computations.

How does this affect runtime?

There is no observable change in the system test runtime. I ran a single 2D simulation on a heterogeneous domain and observed a runtime of around 185s vs the original 202s. This is not a real benchmark, but it indicates that we can have a speedup of 0 to 10%. I think it's therefore correct to switch to the new backend.

Is there something that needs to be double checked?

No.

Can this MR be accepted?

  • Implemented BCGS_AMG_SSOR linear solver backend
  • Pipeline passing
  • Squash option set
  • Delete branch option set
  • Added entry to CHANGELOG.md

Assignee: If the Squash option is set, check/update the commit message right before merging!

Related issues

Closes #169 (closed)

Edited by Santiago Ospina De Los Ríos

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