No, MatMult and MatMatMult require all objects to be on the same communicator.
On Sun, Jan 20, 2013 at 10:12 AM, Hui Zhang <mike.hui.zhang at hotmail.com>wrote: > parallel Mat, multiplies a serial Vec or a serial Mat > > Is it supported directly? If yes, can the resulting Vec/Mat be serial or > parallel? > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130120/775d3353/attachment.html>
