I have did some similar job.<br>
Based on my results, the AMG method is optimal.<br><br><div><span class="gmail_quote">On 10/7/07, <b class="gmail_sendername">Yujie</b> &lt;<a href="mailto:recrusader@gmail.com">recrusader@gmail.com</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi, everyone<br><br>I am using adaptive mesh refinement to solve a
group of coupled steady-state&nbsp;linear PDEs. I will use PETSC as the
solver. Did&nbsp;anyone&nbsp;have&nbsp;experience&nbsp;in&nbsp;such&nbsp;problem.&nbsp;I&nbsp;want&nbsp;to&nbsp;know&nbsp;which&nbsp;solving&nbsp;method&nbsp;is&nbsp;more&nbsp;efficient,&nbsp;including&nbsp;iterative&nbsp;method&nbsp;and&nbsp;preconditioner.&nbsp;Thanks&nbsp;a&nbsp;lot.
<br> <br>Regards,<br><span class="sg">Yujie<br>
</span></blockquote></div><br><br clear="all"><br>-- <br>Zhengyong Ren<br>School of Info-physics and Geomatics Engineering<br>DiXue Building, 3-322#,<br>Central South University, Hunan Province,China.<br>Postal code: 410083
<br>Email: <a href="mailto:renzhengyong@gmail.com">renzhengyong@gmail.com</a><br>Tel: +086013787102372.