On Mon, Dec 20, 2010 at 7:47 AM, Xiaoyin Ji <span dir="ltr">&lt;<a href="mailto:sapphire.jxy@gmail.com">sapphire.jxy@gmail.com</a>&gt;</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;">
Hi,<br>
<br>
I was wondering if petsc could convert an existing matrix into a preconditioner and use it in ks...thought this shall be a straight-forward question but I didn&#39;t find the answer in manuals. Thanks a lot.<br></blockquote>
<div><br></div><div><a href="http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/PC/PCSHELL.html">http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/PC/PCSHELL.html</a></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"><br>
Xiaoyin Ji</font></blockquote></div><br><br clear="all"><br>-- <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>