<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div> Hi Dominic,</div><div><br></div><div>GetDP uses MUMPS solver for the linear system as default. It might be possible that the solver couldn't work properly for your large meshes. Other solver like GMRES, CGSTAB might resolve your problem.</div><div>Hope this helps.</div><br><div><div>2017/12/05 0:08、Dominic North <<a href="mailto:d.j.north@bristol.ac.uk">d.j.north@bristol.ac.uk</a>> のメール：</div><br class="Apple-interchange-newline"><blockquote type="cite"><div lang="EN-GB" link="#0563C1" vlink="#954F72" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class="WordSection1" style="page: WordSection1;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">Hi everyone,<br>I’d like to ask if anyone can answer this, or has similar issues please.<br><br>Is there any reason a GetDP script would return good results for larger mesh sizes (0.4 to 5.0), but a list of NaNs for the calculated values when the mesh size is reduced (0.2 characteristic length)?<o:p></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><br>To be clear, the program runs fine, the mesh is computed ok, but for each row in the results Gnuplot table, there is type, XYZ coordinates etc (all fine), but ‘NaN’ in the ‘Values’ column. Only when the characteristic length is set to low values.<br><br>(They’re rather long, complex .pro and .geo files, otherwise I would attach them here!)<o:p></o:p></div><div style="border-style: none none solid; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0cm 1pt; position: static; z-index: auto;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; border: none; padding: 0cm;"><span><br><br>Any help is much appreciated, thanks.<br><br>Best regards,<br>Dominic North<o:p></o:p></span></div></div></div></div></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div>ABE Hiroshi</div><div> from Tokorozawa, JAPAN</div></span>
</div>
<br></body></html>