[petsc-users] Question - read text file

[Matthew Knepley]

On Fri, Oct 23, 2015 at 2:21 PM, Marcelo Xavier Guterres <
m.guterres at gmail.com> wrote:

> Dear friends,
>
> I need to read a matrix from a text file (txt).
>
> This matrix has a high dimension (2000 X 2000) .
>
> Example: date.txt - provision in the text file:
>
> 1 2 3 5
> 5 5 7 8
> 5 6 8 9
>
>
> What's the proper way to perform the action?
>

Read each row in and call MatSetValues() for that row.

  Thanks,

    Matt


> thanks for help
>
>
> -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
> -- -- -- -- -- -- -- -- --
> Marcelo Xavier Guterres
> -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
> -- -- -- -- -- -- -- -- -
>



-- 
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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