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 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130327/8cad963d/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: t3.out Type: application/octet-stream Size: 16295 bytes Desc: not available URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130327/8cad963d/attachment-0001.obj>
