<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div>Hello,</div><div> </div><div>Is the RCM reordering available for ILU preconditioner in PETSc? The manual says RCM works with LU factorization, but it does not mention it for preconditioners. </div><div> </div><div>If not, is there any reordering method working for ILU in PETSc, or the users have to do the work outside PETSc?</div><div> </div><div>Thanks a lot for your information.</div><div> </div><div>Qin</div></div></body></html>