[petsc-users] Trying to modify petrbf to use custom text file

[Matthew Knepley]

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
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