Thanks Matthew !, It sound very interesting I going to check it. Regard Alex...
2013/1/31 Matthew Knepley <knepley at gmail.com> > On Thu, Jan 31, 2013 at 11:07 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote: > >> "result is incorrect" is not helpful. Please include diagnostics. Are you >> using an iterative or direct solver? Start here if you don't know what to >> check: >> >> >> http://scicomp.stackexchange.com/questions/513/why-is-my-iterative-linear-solver-not-converging >> > > And ASM works great for these problems: > > http://arxiv.org/abs/0909.5413 > > Matt > > >> >> On Thu, Jan 31, 2013 at 9:58 AM, Alex Salazar <alejandrocof at >> gmail.com>wrote: >> >>> Hello, everyone >>> >>> I want to get the solution of algrebraic system (with a dense >>> zero-diagonal simetric matrix) of a interpolation problem (using radial >>> basis functions) with Petsc. >>> >>> For a few points (around 10 elements) using KSP I get the correct >>> solution, however when I increase the number of points, the result is >>> incorrect. >>> >>> Any Idea ? >>> >>> Regards Alejandro. >>> >>> >> > > > -- > 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-users/attachments/20130131/f147d87e/attachment-0001.html>
