[petsc-users] Creating explicit matrix scatter

Jed Brown jedbrown at mcs.anl.gov
Sat Dec 8 08:37:26 CST 2012


How about MatPermute() in a suitable place?

I don't know why you would need such a thing.

On Sat, Dec 8, 2012 at 6:33 AM, Thomas Witkowski <
thomas.witkowski at tu-dresden.de> wrote:

> I checked the documentation of MatGetSubMatrix() and found the following:
>
> "The rows in isrow will be sorted into the same order as the original
> matrix on each process."
>
> For my case, this will be wrong. I need to say each task exactly which row
> from the old matrix should be which row in the new matrix. Any other
> possibility to do this?
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20121208/d241817f/attachment.html>


More information about the petsc-users mailing list