[petsc-users] TS and snes_grid_sequence

Barry Smith bsmith at mcs.anl.gov
Wed Feb 10 16:46:51 CST 2016

> On Feb 10, 2016, at 4:19 PM, Jed Brown <jed at jedbrown.org> wrote:
> Barry Smith <bsmith at mcs.anl.gov> writes:
>>     We do not currently have library code to do grid sequence within a time-step. I believe that providing this requires a great deal of "replumbing" of the TS solvers to make them "grid sequence aware". This is true I believe for both traditional grid sequencing and FAS (I would be happy if Emil or Jed could prove me wrong).  There are seemingly multiple ways to do the grid sequencing: 
> I'm pretty sure you could use TS solved by FAS when Peter and I were
> working on it.  But my test just failed and it looks like some work
> vectors aren't being obtained correctly.  I'm afraid I can't dig into it
> right now.

   Is there an example in the repository?

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