<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2900.2873" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Hi all,</FONT></DIV>
<DIV><FONT face=Arial size=2>I'm a newbie with PetSc so sorry if it is a well
known question (I've seen nothing in the mailing archive).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have a linear system wich is qui ill
conditionned. So whatever solver and preconditionner I use convergence is a bit
chaotic </FONT></DIV>
<DIV><FONT face=Arial size=2>and it use to quit the solver when the maximum
number of iteration has been reached with the last residual.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Last residual that is never the best residual found
during the whole convergence path. Is there a way to get this best solution from
PetSc ?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2>Etienne Perchat</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV></BODY></HTML>