On Sat, Mar 30, 2013 at 7:26 PM, Anil . <dasans at gmail.com> wrote: > Matt, > > PetRBF runs properly on my system. But is the dev branch still required to > run petRBF? > Could my issues be associated with this? >
No. Matt > On Wed, Mar 27, 2013 at 9:50 AM, Matthew Knepley <knepley at gmail.com>wrote: > >> On Wed, Mar 27, 2013 at 3:13 PM, Anil . <dasans at gmail.com> wrote: >> >>> Matt, >>> >>> Petsc Options I use to run are.... >>> mpirun -np 4 ./reader -pc_type asm -sub_pc_type lu -sub_mat_type dense >>> -ksp_monitor -ksp_rtol 1e-13 -ksp_max_it 100 -vecscatter_alltoall >>> -log_summary >>> >> >> 1) Always run with -ksp_view. >> >> 2) The relative tolerance is probably too tight, but that is secondary >> >> 3) Something is really wrong here. I am guessing something in the input >> not what you want. If the interaction is >> truly short range, you would see significant drop in the residual on >> the first iteration. First, take a look at the >> matrix using -mat_view draw:: -draw_pause -1. It should be banded. >> >> Matt >> >> Attached is the output..It also contains my petsc configuration >>> >>> >>> >>> On Wed, Mar 27, 2013 at 7:59 AM, Matthew Knepley <knepley at >>> gmail.com>wrote: >>> >>>> 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 >>>> >>> >>> >>> >>> -- >>> 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/20130331/16f2ff4d/attachment.html>
