<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Aug 18, 2016 at 8:35 AM, 최경준 <span dir="ltr"><<a href="mailto:kyungjun.choi92@gmail.com" target="_blank">kyungjun.choi92@gmail.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 dir="ltr">Hi, I'm trying to set my SNES matrix-free with Walker & Pernice way of computing h value.<div><br></div><div>I found above command (MatSNESMFWPSetComputeNormU) but my fortran compiler couldn't fine any reference of that command.</div><div><br></div><div>I checked Petsc changes log, but there weren't any mentions about that command.</div><div><br></div><div>Should I have to include another specific header file? </div></div></blockquote><div><br></div><div>We have this function</div><div><br></div><div> <a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatMFFDWPSetComputeNormU.html">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Mat/MatMFFDWPSetComputeNormU.html</a></div><div><br></div><div>but I would recommend using the command line option</div><div><br></div><div> <b style="color:rgb(0,0,0);font-family:Times;font-size:medium">-mat_mffd_compute_normu</b></div><div> </div><div> Thanks,</div><div><br></div><div> Matt</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Thank you always.</div></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">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</div>
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