[petsc-users] Output for TecPlot

[Алексей Рязанов]

Thank you, Matt! I will try it

2011/6/21 Matthew Knepley <knepley at gmail.com>

> On Tue, Jun 21, 2011 at 2:45 PM, Алексей Рязанов <amryazanov at gmail.com>wrote:
>
>> Hello.
>>
>> Help me please with my output trouble.
>>
>> I have a solution vector X and i need it to be visualized via TecPlot 360.
>> X is a DA2D vector and PetscSnchtnizedFPrintf writes it down according to
>> its petsc ordering, but i need the output to be arranged according to
>> application ordering.
>>
>> My goal is to have a file with lines of this format: "i   j   x(i,j)".
>> And Lines should be arranged firstly by j and secondly by i without any
>> relation with DA processor distribution.
>> Actually i need to realize more complex file structure, but the problem of
>> automaticly propperly arranged output is the main stuck point.
>>
>> A combination of printf() and mpibarrier() didnt bring me luck. I need an
>> advice.
>>
>
> You want to use
>
>
> http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/DM/DMDAGlobalToNaturalBegin.html
>
> to get a Vec with the natural ordering, and then VecView() to output it.
> You can postprocess that output to get whatever you want,
> or use VecGetArray() and print what you like.
>
>    Matt
>
>
>> Thank you!!
>>
>> Alexey Ryazanov
>> ______________________________________
>> Nuclear Safety Institute of Russian Academy of Sciences
>>
>>
>>
>>
>>
>>
>
>
> --
> 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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