Thanks Jed. How does this represent itself in the KSPView output?
On Thu, Nov 21, 2013 at 3:19 PM, Jed Brown <[email protected]> wrote: > John Mousel <[email protected]> writes: > > > I'm solving a Poisson equation with BiCGStab/GAMG. I'm looking at KSPView > > and I see that the problem is not reducing the number of processors on > the > > coarser grids. My coarse problem is 723x723, and it looks like it's still > > being solved on 192 processes. This doesn't seem right, and I'm believe > > this used to trigger processor reduction. > > It still uses the big communicator, but all but rank 0 should be empty > on the coarsest grid. >
