On Tue, May 7, 2013 at 10:53 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> This thread is complaining about DMDA costing multiple vectors worth of > memory. > > https://groups.google.com/d/msg/claw-dev/JwIjL5e48No/NOizc6i88gkJ > > We currently set a lot of stuff up eagerly so that it can be accessed > using non-collective accessors. When a Krylov method is used or a > matrix is assembled, that stuff is in the noise, but for explicit > methods, it can be the limiting factor for problem size. Should we do > something about this? > I would at least like to know what it is, and how the interface would have to change. This can't be all scatter memory. Matt -- 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20130508/1c0bebad/attachment.html>
