[petsc-users] TS and snes_grid_sequence

[Jed Brown]

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.
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