to the new scalable MatMatMult() that is done in PETSc? Is it possible to even compare
the flop rates sensibly?

  http://arxiv.org/abs/1203.1692

This is what Jeff is planning on using in his SciDAC.

      Matt

--
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