2008/5/22 Anders Logg <[EMAIL PROTECTED]>: > On Mon, May 19, 2008 at 09:31:16AM +0200, Martin Sandve Alnæs wrote: >> Regarding adding sparsity pattern information to an ufc::form, it seems to me >> it should be part of the *integral classes, one >> tabulate_sparsity_pattern to match >> each tabulate_tensor, plus a num_nonzeros() function. > > I don't understand what tabulate_sparsity_pattern is supposed to do. > Should it tabulate the full matrix sparsity pattern, or is it some > kind of "equation sparsity pattern" tabulating which components of a > system meet which components? > > -- > Anders
I mean tabulating which element tensor entries are always zero independent of the cell and coefficients. An "equation sparsity pattern", which may be different for each *_integral class. It will then be the task of DOLFIN to build a better global sparsity pattern based on these local element sparsity patterns. -- Martin _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
