On Wed, Sep 5, 2012 at 12:07 PM, Michele Rosso <span dir="ltr"><<a href="mailto:mrosso@uci.edu" target="_blank">mrosso@uci.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">
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<font face="Ubuntu">Hi,<br>
<br>
if I do not specify any preconditioner, is one used by default?<br>
If so, which one?<br>
I am using the DMDA 3d context and petsc3.3-p2.<br></font></div></blockquote><div><br></div><div>You can see what you are using with -ksp_view.</div><div><br></div><div>The default is ILU(0).</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 bgcolor="#FFFFFF" text="#000000"><font face="Ubuntu">
Thank you,<br>
Michele<br></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>