[petsc-dev] How To: petsc binary to matrix market format

[Jed Brown]

On Sun, Jul 1, 2012 at 1:21 PM, Dave Nystrom <dnystrom1 at comcast.net> wrote:
>
>
> Can't really relate to the last comment.  My interest in MatrixMarket
> format
> is not to shoot myself in the foot.  Rather, it is because of 2 different
> reasons.  One is that 2 different vendors have asked for some sample
> matrices
> from the problems I solve and their format preference is MatrixMarket.
>

The amount of code to write a MatrixMarket file is less than the length of
this email.


> Second is that I would like to test some of my matrices with the new
> version
> of cholmod that has gpu support since I have seen good performance with
> other
> matrices and I have not been able to get cholmod to work with cublas in
> petsc
> yet.  Petsc crashes when I try to call cholmod with its cublas support.
>

I think time is better spent debugging that problem.


> However, cholmod has a test program that can read and solve systems which
> are
> input via MatrixMarket format.  I certainly don't want to shoot myself in
> the
> foot or use MatrixMarket format for any sort of production scenario.
>
> Thanks for the suggestions.  I'll look into exploring python for this task.
>
> Dave
>
>
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