<div dir="ltr"><ul style="color:rgb(0,0,0);font-family:Times;font-size:medium;background-color:rgb(213,234,255)"><li><tt>KSPSetOperators()</tt> no longer has the <tt>MatStructure</tt> argument. The Mat objects now track that information themselves. Use <tt>KPS/PCSetReusePreconditioner()</tt> to prevent the recomputation of the preconditioner if the operator changed in the way that <tt>SAME_PRECONDITIONER</tt> did with <tt>KSPSetOperators()</tt></li></ul><div class="gmail_extra">see <a href="http://www.mcs.anl.gov/petsc/documentation/changes/35.html">http://www.mcs.anl.gov/petsc/documentation/changes/35.html</a></div><div class="gmail_extra"><br></div><div class="gmail_extra">Hong</div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Aug 7, 2016 at 2:59 AM, 丁老师 <span dir="ltr"><<a href="mailto:ztdepyahoo@163.com" target="_blank">ztdepyahoo@163.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="line-height:1.7;color:rgb(0,0,0);font-size:14px;font-family:Arial"><div style="line-height:1.7;color:rgb(0,0,0);font-size:14px;font-family:Arial"><div style="line-height:1.7;color:rgb(0,0,0);font-size:14px;font-family:Arial"><div style="line-height:1.7;color:rgb(0,0,0);font-size:14px;font-family:Arial"><div>Dear friends:</div><div>     I just update to 3.6.3, but the command " KSPSetOperators(ksp,A,A,SAME_<wbr>NONZERO_PATTERN)" does not work any more. could you please give me some suggestions<br></div><div>Regards</div></div><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></div><br><br><span title="neteasefooter"><p> </p></span></blockquote></div><br></div></div>