Memory preallocation in python

[Matthew Knepley]

It should be a wrapper for Mat***Preallocation(). Do these exist?

   Matt

On 8/21/06, Marek Wojciechowski <mwojc at p.lodz.pl> wrote:
>
> Hi,
>
> i have a small problem in python. In case of matrix assembling -info says
> me something like:
>
> [0] MatSetUpPreallocationWarning not preallocating matrix storage
> [0] MatAssemblyEnd_SeqAIJMatrix size: 6006 X 6006; storage space: 12084
> unneeded,108036 used
> [0] MatAssemblyEnd_SeqAIJNumber of mallocs during MatSetValues() is 6006
> [0] MatAssemblyEnd_SeqAIJMaximum nonzeros in any row is 18
> [0] Mat_CheckInodeFound 2002 nodes of 6006. Limit used: 5. Using Inode
> routines
>
> This obviously means poor behavior because of dynamical memory allocation.
> Unfortunately, I have no idea how to preallocate memory for Mat objects in
> python.
> Any suggestions?
>
> Greetings
> --
> Marek Wojciechowski
>
>


-- 
"Failure has a thousand explanations. Success doesn't need one" -- Sir Alec
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