[petsc-users] Questions about MatConvert BAIJ to AIJ

Jed Brown jed at jedbrown.org
Wed Mar 18 14:48:54 CDT 2015

Chung-Kan Huang <ckhuangf at gmail.com> writes:

> Yes, I was suprised that I can still use MatSetValuesBlocked after I did
> MatConvert MATBAIJ to MATAIJ.
> Then I just found the mat type is still seqbaij which means the MatConvert
> didn't work.
> This is how I did MatConvert
> where J is my Jacobian matrix.

Seems to me this should fail because you didn't MatConvert this matrix
yet.  Anyway, you should use MAT_INITIAL_MATRIX and put the result in a
new Mat.
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