[petsc-users] DIVERGED_INDEFINITE_PC in algebraic multigrid

[Jed Brown]

Mark Adams <mfadams at lbl.gov> writes:
>> thank you for your input and sorry my late reply: I saw your email only
>> now.
>> By setting up the solver each time step you mean re-defining the KSP
>> context every time?
>>
>
> THe simplest thing is to just delete the object and create it again.  THere
> are "reset" methods that do the same thing semantically but it is probably
> just easier to destroy the KSP object and recreate it and redo your setup
> code.

Mark, if PCReset (via KSPReset) does not produce the same behavior as
destroying the KSP and recreating it, it is a bug.  I think this is the
case, but if it's not, it needs to be fixed.
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