<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span>Thanks a lot!</span></div><div><span></span> </div><div><span>Qin</span></div><div style="display: block;" class="yahoo_quoted"> <br> <br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> On Friday, February 14, 2014 11:16 AM, Jed Brown <jed@jedbrown.org> wrote:<br> </font> </div> <div class="y_msg_container">Qin Lu <<a href="mailto:lu_qin_2000@yahoo.com" shape="rect" ymailto="mailto:lu_qin_2000@yahoo.com">lu_qin_2000@yahoo.com</a>> writes:<div id="yqtfd64902" class="yqt0622467411"><br clear="none"><br clear="none">> Barry and
Jed,<br clear="none">> <br clear="none">> Nice to know that! Is there a corresponding function call to set RCM?</div><br clear="none"><br clear="none">$ ./ex2 -pc_factor_mat_ordering_type rcm -help | grep -A1 mat_ordering<br clear="none"> -pc_factor_mat_ordering_type <natural>: Reordering to reduce nonzeros in factored matrix (one of) natural nd 1wd rcm qmd rowlength wbm spectral<br clear="none"> (PCFactorSetMatOrderingType)<br clear="none"><br clear="none">Looks like you should check out<br clear="none"><br clear="none"><a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCFactorSetMatOrderingType.html" shape="rect" target="_blank">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCFactorSetMatOrderingType.html</a><div id="yqtfd92708" class="yqt0622467411"><br clear="none"></div><br><br></div> </div> </div> </div> </div></body></html>