On Mon, Mar 23, 2009 at 1:58 PM, A Navaei <[email protected]> wrote: > 2009/3/23 Robert Kirby <[email protected]>: >> Hi all, some thoughts: >> 1.) In the current paradigm (build + apply), building the matrix is >> typically not dominant in the overall run-time. > > Isn't this in contrast with what Kent said about matrix insertion > being the bottleneck? Are there any references for these claims?
Matrix insertion is the bottleneck during the assembly of matrices from simple PDEs (at least simple ones). Depending on the application, other parts like the linear solver are often more costly than the assembly. Both these claims are easy to verify. Martin _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
