Matthew Knepley <[email protected]> writes: > On Tue, Apr 3, 2018 at 6:20 PM, Jed Brown <[email protected]> wrote: > >> Derek Gaston <[email protected]> writes: >> >> > On Tue, Apr 3, 2018 at 4:06 PM Jed Brown <[email protected]> wrote: >> > >> >> Communicators should be cheap. One per library per "size" isn't a huge >> >> number of communicators. >> >> >> > >> > I agree - but that's not what we're getting here. We're getting one per >> > "object" (Mat / Preconditioner, etc.) associated with the library per >> > "size". If we can fix that I agree that there's no problem (we use a lot >> > of libraries... but not 2000 separate ones simultaneously!). >> >> So PETSc needs to dup and attach a hypre communicator because they >> aren't interested in doing it themselves. Not hard to implement, just >> mildly annoying. >> > > Can't someone tell them its an xSDK requirement?
xSDX is busy with threads... ;-)
