[petsc-users] `snes+ksponly` did not update the solution when ksp failed.

Zongze Yang yangzongze at gmail.com
Mon Mar 20 01:40:51 CDT 2023


Hope this email finds you well. I am using firedrake to solve linear
problems, which use SNES with KSPONLY.

I found that the solution did not update when the `ksp` failed with
The macro `SNESCheckKSPSolve` called in `SNESSolve_KSPONLY` make it return
before the solution is updated.

Is this behavior as expected? Can I just increase the value of
to make the solution updated without introducing other side effects?

Best wishes,
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