<div class="gmail_quote">On Thu, May 12, 2011 at 06:35, Tian(ICT) <span dir="ltr"><<a href="mailto:rongtian@ncic.ac.cn">rongtian@ncic.ac.cn</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div id=":2h5">Without any option, SNES converges never calling FormJacobian,<br>
and the solution seems correct.<br>
<br>
What is the reason for that the SNES solver never calls FormJacobian (mf option was not used)?</div></blockquote></div><br><div>Please send the following:</div><div><br></div><div>1. The code where you configure the solver, everything from SNESCreate to SNESSolve</div>
<div><br></div><div>2. The complete command line that you run with.</div><div><br></div><div>3. Output when you add "-snes_view -options_table" to the command line</div>