What is the domain suppose to be? The volume of a torus? What kind of "regular" grid are you mapping it to? Are you making sure the "regular grid" is periodic in that one direction?
On Mar 26, 2013, at 7:58 PM, "Anil ." <dasans at gmail.com> wrote: > Matt, > > I am having around 3481 particles that are placed in an unstructured manner. > Attached is the image showing the distribution. > > > On Tue, Mar 26, 2013 at 11:45 PM, Matthew Knepley <knepley at gmail.com> > wrote: > On Mon, Mar 25, 2013 at 10:38 PM, Anil . <dasans at gmail.com> wrote: > 1) Could not find the petrbf mailing list > 2) Petrbf runs perfectly > 3) Attached is the output with -ksp_view -ksp_monitor > > Just point me in the right direction. Issues might be very basic as I am > starting to use Petsc > > This output is a little strange. Some partitions have 0 entries. I am > guessing this problem is very > small. For PeRBF, it does turn out to be optimal to use small blocks, but the > block size depends > on your interaction scale. Right now you have 75 blocks, which might be too > many for your small > problem. > > Matt > > On Sat, Mar 23, 2013 at 2:18 AM, Matthew Knepley <knepley at gmail.com> wrote: > On Fri, Mar 22, 2013 at 10:58 PM, Anil . <dasans at gmail.com> wrote: > Hi, > > I have a text file containing N rows. > Each row with x,y,omega values. > I am trying to interpolate this data onto a regular grid using petrbf > But the KSP does not converge and am not able to find the reason. > > The code is available with the text files at > https://www.dropbox.com/s/cypuwugbxo07kx0/rbf-interpolation.tar.gz > > I am very new to petsc and any direction how o proceed would be helpful. > > 1) Did you mail the petrbf list? > > 2) Could you run the petrbf examples? > > 3) We cannot tell anything about convergence without the output of -ksp_view > -ksp_monitor. > > Matt > > -- > Sincerely > Anil Das P V > > > > -- > 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 > > > > -- > Sincerely > Anil Das P V > > > > -- > 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 > > > > -- > Sincerely > Anil Das P V > <distribution.eps>
