<div class="gmail_quote">On Sat, Aug 11, 2012 at 6:36 PM, Subramanya Gautam Sadasiva <span dir="ltr"><<a href="mailto:ssadasiv@purdue.edu" target="_blank">ssadasiv@purdue.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
I was trying the snes solver on the obstacle problem by modifying miscellaneous ex 7 and I get only linear convergence times.Is this what is expected from the virs solver?<br></blockquote><div>Yes, in the sense that you can't expect Newton's typical quadratic convergence: you are not using Newton's method in the usual sense,</div>
<div>since the linear (and, in a sense, the nonlinear) problem you are solving changes every time the coincidence set changes.</div><div><br></div><div>Dmitry. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
THanks,<br>
Subramanya<br>
<br>
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