On Sun, Mar 20, 2011 at 10:03 AM, Joshua Booth <jdbst21 at gmail.com> wrote:
> Hi reading about MatGetsubMatrices, that it must be called on all > processors the same number of times. > Does this mean all processors in PETSC_COMM_WORLD or on all processors that > contain the Parent Matrix. > All processes in the Mat communicator. > For example. If I am using four processors, but only rank=0 has a seq > matrix A and it wants a seq subA on rank=0, do the other three processors > need to make a call? > No. Matt > Thanks > > Josh > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110320/f8f3167d/attachment.htm>
