AIJ and BAIJ convertion

Hong Zhang hzhang at
Tue May 5 10:15:10 CDT 2009

Run your code with the option
'-mat_type baij -mat_block_size 6'
You can use '-mat_view_info' to varify the matrix type
that is actually used.


On Tue, 5 May 2009, SUN Chun wrote:

> Hi,
> I created a matrix with AIJ format. I knew the structure of this matrix should also fit BAIJ type with some certain block size (say 6). Now instead of creating another BAIJ matrix then fill in the values again, do I have an easier way to convert this AIJ matrix to BAIJ matrix with given block size? I'm willing to allocate another memory for the new matrix.
> Thanks,
> Chun

More information about the petsc-users mailing list