On Fri, Aug 17, 2012 at 11:27 AM, Mark F. Adams <mark.adams at columbia.edu> wrote: > John: could you perhaps test MatMatMult and MatMatTransposeMult so we could > get some concrete numbers?
For MatMatTransposeMult I get this error: [0]PETSC ERROR: --------------------- Error Message ------------------------------------ [0]PETSC ERROR: No support for this operation for this object type! [0]PETSC ERROR: MatMatTransposeMult not supported for A of type mpiaij! [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Petsc Development HG revision: f9c6cac2d69c724a2258d4e0dc2f51b0825aa875 HG Date: Thu Aug 16 08:37:18 2012 -0700 For MatMatMult, my problem is not symmetric. It doesn't look like MatTranspose() followed by MatMatMult is a viable option. John
