On Wed, Feb 20, 2013 at 8:08 PM, Teranishi, Keita <knteran at sandia.gov>wrote:
> Hi PETSc users. > > I just want to double-chcek if MatMultMPIAIJ requires matrix and vector > to have the same data (row) partitioning. Otherwise, it throws > PETSC_ERROR. Is it true? > Yes, in A * x ---> y, the column-layout of A must match x and the row-layout must match y. We should raise an error in case of mismatch. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130220/c14f7fe7/attachment.html>
