On Thu, Feb 3, 2011 at 10:35 AM, Verena Kuhlemann <span dir="ltr"><<a href="mailto:vkuhlem@emory.edu">vkuhlem@emory.edu</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hello,
<div><br></div><div>I am somehow confused with the usage of PCLU and PCILU ind PETSc.</div><div>It seems as there are the same options to choose from for both.</div><div>In particular, if I use PCLU and <span style="font-family:monospace;font-size:medium;white-space:pre-wrap">PCFactorSetFill(pc,5)</span></div>
<div><span style="font-family:monospace;font-size:medium;white-space:pre-wrap">don't I end up with an incomplete LU factorization?</span></div><div><font face="monospace"><span style="white-space:pre-wrap;font-size:medium">If I use PCLU with no other options set, will the</span></font></div>
<div><font face="monospace"><span style="white-space:pre-wrap;font-size:medium">factorization be complete?</span></font></div></blockquote><div><br></div><div>LU ignores the fill option. It always gives the complete factorization.</div>
<div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><font face="monospace"><span style="white-space:pre-wrap;font-size:medium">Thanks,</span></font></div>
<div><font face="monospace"><span style="white-space:pre-wrap;font-size:medium">Verena</span></font></div></blockquote></div>-- <br>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener<br>