[petsc-users] API cal to set mg_levels_pc_type

Jeremy Theler jeremy at seamplex.com
Fri May 20 13:39:27 CDT 2022

The default smoothing PC changed from sor to jacobi in 3.17. The
Changelog says the old behavior can be recovered by using
-mg_levels_pc_type sor.

1. Is there a way to set the mg_levels_pc_type via an API call?
2. Are there any changes in efficiency expected with this new PC?

jeremy theler

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