Jed,<br><br>I'll try this tomorrow.<br><br>Regards,<br>Alexander<br><br><div id="htc_header" style="">----- Reply message -----<br>From: "Jed Brown" <jedbrown@mcs.anl.gov><br>To: "For users of the development version of PETSc" <petsc-dev@mcs.anl.gov><br>Subject: [petsc-dev] MatMatMult gives different results<br>Date: Wed, Feb 8, 2012 22:21<br><br></div><br><div dir="ltr"><div class="gmail_quote">On Wed, Feb 8, 2012 at 23:39, Alexander Grayver <span dir="ltr"><<a href="mailto:agrayver@gfz-potsdam.de">agrayver@gfz-potsdam.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#ffffff" text="#000000">It happens within the CG solver with the system matrix which is
created like this:<br>
call
MatCreateShell(MPI_COMM_WORLD,mlocal,nlocal,N,N,PETSC_NULL_INTEGER,H,ierr);CHKERRQ(ierr)</div></blockquote></div><br><div>This should be fixed in petsc-dev now, can you pull and try again?</div></div>