> >> I wonder if the their symbolic setup is getting called every time. You do >> 50 solves it looks like and that should be enough to amortize a one time >> setup cost. >> > > Hypre does not have concept called symbolic. They do everything from > scratch, and won't reuse any data. >
Really, Hypre does not cache the maps and non-zero structure, etc, that is generated in RAP? I suspect that that is contributing to Hypres poor performance, but it is not the whole story as you are only doing 5 solves.
