thanks -- Dr. Fang-Bao Tian Department of Mechanical Engineering, Vanderbilt University, Nashville, TN, 37212, USA <http://challenge.vuse.vanderbilt.edu/~tfbao> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120628/2ea2c2b9/attachment.html>