So, Am I right with 2 things below?<br><br>1- If I set BAIJ for Mat, then the ILU preconditoner automatically recognize to use Block-version of ILU preconditioners? (like VBILUM developed by Saad and coworkers) or I should do more for Block preconditioning?<br>
<br>2- "the block size is the same the matrix block size" means that there is no way to combine the matrix elements to build blocks of possible maximum size like Hash method or something like this?<br><br>Thanks a lot.<br>
<br><br><br><div class="gmail_quote">On Fri, Oct 14, 2011 at 1:50 PM, Matthew Knepley <span dir="ltr"><<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">On Fri, Oct 14, 2011 at 3:05 AM, behzad baghapour <span dir="ltr"><<a href="mailto:behzad.baghapour@gmail.com" target="_blank">behzad.baghapour@gmail.com</a>></span> wrote:<br></div></div>
<div class="gmail_quote"><div><div></div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear all,<br><br>How should I efficiently use block-ILU preconditioner in Petsc?<br><br>I saw in man-page of PCILU:<br>"For BAIJ matrices this implements a point block ILU". What exactly it means?<br></blockquote>
<div><br></div></div></div><div>That the block size is the same the matrix block size.</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">
Regards,<br><font color="#888888">
Behzad<br clear="all"><br><br>
</font></blockquote></div><font color="#888888"><br><br clear="all"><div><br></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>
</font></blockquote></div><br><br clear="all"><br>-- <br>==================================<br>Behzad Baghapour<br>Ph.D. Candidate, Mechecanical Engineering<br>University of Tehran, Tehran, Iran<br><a href="https://sites.google.com/site/behzadbaghapour" target="_blank">https://sites.google.com/site/behzadbaghapour</a><br>
Fax: 0098-21-88020741<br>==================================<br><br>