[petsc-users] Matrix with different number of rows on different processes

[Jed Brown]

On Thu, May 12, 2011 at 10:48, martin flehmig <
s4245690 at mailbox.tu-dresden.de> wrote:

> is it possible to dictate how many rows a process owns on a matrix?
>
> For example:
> A is a square matrix with 10 rows/columns. There are two processes. cpu0
> should own rows 0-7 and cpu1 the others.
>

See the "m" and "n" arguments:

http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/Mat/MatSetSizes.html
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