[petsc-users] question about MatMatMult

[Michael Povolotskyi]

Dear Petsc developers,
I'm gradually moving from the version 3.2 to the version 3.4.
I had to skip the version 3.3 because of the bug in MatMatMult that has 
been reported to you.

What I see is that the MatMatMult works well but there is a difference:
in the version 3.2 if a sparse matrix was multiplied by a dense matrix 
the result was dense.
In the version 3.4 the result is sparse.

Is my observation correct?
Thank you,
Michael.

-- 
Michael Povolotskyi, PhD
Research Assistant Professor
Network for Computational Nanotechnology
207 S Martin Jischke Drive
Purdue University, DLR, room 441-10
West Lafayette, Indiana 47907

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