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/ccbac111/attachment.html>
