On Aug 31, 2010, at 1:44 PM, Roy Stogner wrote: > Actually, the only vectors which currently default to ghosted are > old_local_solution, older_local_solution in TransientSystems, > old_local_nonlinear_solution in unsteady DiffSystems, and > current_local_solution in any System. But we pass solution and rhs to > the petsc nonlinear solver, and both of those are just plain parallel.
That would explain it. Is there any way to modify that behavior... if I'm the only one that needs a fully ghosted system I don't want to slow everyone else down. Jed: how much overhead will be incurred by having all vectors in my SNES system be ghosted? Will it be a noticeable slowdown or communication? Derek ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Libmesh-devel mailing list Libmesh-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-devel
