[petsc-users] How to get Matrix from MatGetArray()
behzad baghapour
behzad.baghapour at gmail.com
Sun Oct 2 01:29:11 CDT 2011
I know about the efficiency and scalability of modern linear methods and I
don't really want to pass memory in a inefficient manner.
But here I need to test my designed matrix and know what PETSc brings out in
a dense format to check my procedure.
Thanks,
Behzad
On Sat, Oct 1, 2011 at 7:36 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> On Sat, Oct 1, 2011 at 10:44, behzad baghapour <behzad.baghapour at gmail.com
> > wrote:
>
>> I test MatGetArray( Mat A, PetscScalar* a ) but I couldnt find the correct
>> content of matrix by using a[i*n+j].
>
>
> The moment you ask for such a grotesque thing, you have thrown in the towel
> and given up any chance of a moderately scalable method (in memory or time).
>
--
==================================
Behzad Baghapour
Ph.D. Candidate, Mechecanical Engineering
University of Tehran, Tehran, Iran
https://sites.google.com/site/behzadbaghapour
Fax: 0098-21-88020741
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