Thanks, Matt On Mon, Dec 6, 2021 at 4:47 PM Matthew Knepley <[email protected]> wrote:
> On Mon, Dec 6, 2021 at 6:40 PM Fande Kong <[email protected]> wrote: > >> Dear PETSc team, >> >> I am interested in a careful evaluation of PETSc GPU performance in our >> INL cluster. >> >> Any example in PETSc that can show GPU speedup with solving a nonlinear >> equation? >> >> I talked to Junchao; he suggested that I try SNES/tutorial/ex56. I tried >> that, but I could not find any speedup using the GPU. I could attach some >> results of "log_view" later if we would like to see that. >> > > We should note that you will only see speedup in the solver, so that > problem has to be pretty large. I believe Mark has good results with it. > The assembly is still all on the CPU. I am working on this over break, and > hope to have a CEED version of it by the new year. > Are both function and matrix assmelies on CPU? Or just the matrix assembly? OK, I will try to check the solver part Thanks, again Fande > > Thanks, > > Matt > > >> Appreciate any instructions/comments about running a simple PETSc GPU >> example to get a speedup. >> >> Thanks, >> >> Fande >> > > > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which their > experiments lead. > -- Norbert Wiener > > https://www.cse.buffalo.edu/~knepley/ > <http://www.cse.buffalo.edu/~knepley/> >
