On Wed, Jun 27, 2012 at 7:55 AM, w_ang_temp <span dir="ltr"><<a href="mailto:w_ang_temp@163.com" target="_blank">w_ang_temp@163.com</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">
<div style="line-height:1.7;font-size:14px;font-family:arial"><p>Hello,</p>
<p> I want to deal with the ill-conditioned problems of Terzaghi's one-dimensional consolidation</p>
<p>finite element equations in geotechnical engineering. So is there special support on ill-conditioned</p>
<p>problems using ksp in PETSc.</p></div></blockquote><div><br></div><div>Use a direct solver, like built-in LU, or in parallel, MUMPS (--download-mumps).</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 style="line-height:1.7;font-size:14px;font-family:arial">
<p> Thanks.</p>
<p> Jim</p>
<div></div></div><br><br><span title="neteasefooter"><span></span></span></blockquote></div><br><br clear="all"><div><br></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>