On Fri, 8 Jan 2010 12:27:18 +0100, "Toby D. Young" <tyoung at ippt.gov.pl> wrote: > > > Dear petsc-dev, > > Where has the MatCompress() functionality gone to in petsc-dev? > Is there a replacement function? or is MatCompress defunct now? It was never implemented for any of the PETSc matrix formats. Jed