<div class="gmail_quote">On Wed, Jun 8, 2011 at 14:17, 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>However, you might look at Elemental (<a href="http://code.google.com/p/elemental/" target="_blank">http://code.google.com/p/elemental/</a>) which solves the complex symmetric eigenproblem and is very scalable.</div>
</blockquote></div><br><div>Note that Elemental is for dense systems.</div><div><br></div><div><br></div><div>To solve your problem, it's important to know where it came from. The average number of nonzeros per row doesn't tell us anything about it's mathematical structure which is needed to design a good solver.</div>