BTW what are the relevant papers that describe this problem? Is this one http://epubs.siam.org/doi/abs/10.1137/110834512
On Mon, Apr 3, 2017 at 1:04 PM Justin Chang <[email protected]> wrote: > So my makefile/script is slightly different from the tutorial directory. > Basically I have a shell for loop that runs the 'make runex48' four times > where -da_refine is increased each time. It showed Levels 1 0 then 2 1 0 > because the job was in the middle of the loop, and I cancelled it halfway > when I realized it was returning errors as I didn't want to burn any > precious SU's :) > > Anyway, I ended up using Edison with 16 cores/node and Cori/Haswell with > 32 cores/node and got some nice numbers for 128x128x16 coarse grid. I am > however having issues with Cori/KNL, which I think has more to do with how > I configured PETSc and/or the job scripts. > > On Mon, Apr 3, 2017 at 6:23 AM, Jed Brown <[email protected]> wrote: > > Matthew Knepley <[email protected]> writes: > > I can't think why it would fail there, but DMDA really likes old numbers > of > > vertices, because it wants > > to take every other point, 129 seems good. I will see if I can reproduce > > once I get a chance. > > This problem uses periodic boundary conditions so even is right, but > Justin only defines the coarsest grid and uses -da_refine so it should > actually be irrelevant. > > >
