On Tue, Jun 24, 2008 at 2:20 PM, Derek Gaston <[EMAIL PROTECTED]> wrote: > On Jun 24, 2008, at 1:05 PM, Roy Stogner wrote: > >> Another question: what NonlinearSystem class? If you're using >> NonlinearImplicitSystem, doesn't that allocate a matrix whether you >> and PETSc eventually use it or not? > > Yes NonlinearImplicitSystem > > Crap... I just went and dug down into ImplicitSystem... and you're > right! There is a matrix that's getting created and sized! Hmmm.... > we might have to turn that off somehow...
If it's getting repeatedly created and destroyed, that might explain the big swings in mem. usage. But if it just gets created once and then tossed out at the end of the run I'm not sure it would cause this. OTOH, Derek, this may be why your "back of the envelope" problem size calculation caused the machines to swap ;-) -- John ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Libmesh-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-devel
