On Wed, Mar 27, 2013 at 11:58 AM, 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. > Show me your PETSc options, and try playing with the number of blocks. If you look at the PetRBF paper, we give guidance for choosing the sizes. Matt > > 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 > -- 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/20130327/4132a087/attachment.html>
