Barry, Its 2D domain. Its a simulation of flow past an ellipse. Currently I am trying to compute only the weights associated with each initial points using RBF. Using these weights I will then interpolate onto regular grid. I have not added interpolating onto regular grid yet. It diverges while computing the weights.
On Wed, Mar 27, 2013 at 7:34 AM, Barry Smith <bsmith at mcs.anl.gov> wrote: > > 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> > > -- Sincerely Anil Das P V -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130327/b59d792c/attachment.html>
