[petsc-users] Doubt in MPIPreallocation

[John Albequerque]

I came up with this could you please have a look at it as I am not getting
it. I am getting an error



*New nonzero at (0,4) caused a malloc*http://pastebin.com/ZxT7SWtc

Could you please have a look at it.

---------------
Thanks,
John Albequerque


On Fri, Feb 19, 2016 at 1:25 PM, Matthew Knepley <knepley at gmail.com> wrote:

> On Fri, Feb 19, 2016 at 1:50 AM, John Albequerque <johncfdcfd at gmail.com>
> wrote:
>
>> Could someone help me setting up this matrix i.e from preallocation to
>> Set Values for an MPIAIJ matrix which has its entries.
>>
>>
>>
>>
>>
>> *1  1  1  1  0  0  0  00  1  1  1  1  0  0  00  0  1  1  1  1  0  00  0
>> 0  1  1  1  1  00  0  0  0  1  1  1  1*
>>
>> I am trying to do it from 3 days now but not able to figure it out. Could
>> someone please help me do this.
>>
>
> It will be enough to say that each row has 3 off-diagonal values, so you
> can use the simplified preallocation rather
> than giving a value for each row individually.
>
>    Matt
>
>
>> Thanks.
>>
>> ----
>> John Albequerque.
>>
>>
>>
>
>
> --
> 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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