<html>
<head>
<!-- Template generated by Exclaimer Mail Disclaimers on 09:08:59 Tuesday, 2 September 2014 -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">P.ImprintUniqueID {
MARGIN: 0cm 0cm 0pt
}
LI.ImprintUniqueID {
MARGIN: 0cm 0cm 0pt
}
DIV.ImprintUniqueID {
MARGIN: 0cm 0cm 0pt
}
TABLE.ImprintUniqueIDTable {
MARGIN: 0cm 0cm 0pt
}
DIV.Section1 {
page: Section1
}
</style><!-- Template generated by Exclaimer Mail Disclaimers on 09:08:59 Tuesday, 2 September 2014 --><style style="display: none;" id="owaParaStyle" type="text/css">P {margin-top:0;margin-bottom:0;}</style><style id="owaParaStyle" type="text/css" style="">
<!--
p
{margin-top:0;
margin-bottom:0}
-->
</style>
</head>
<body id="" tabindex="0" aria-label="Message body" fpstyle="1" dir="ltr">
<p class="ImprintUniqueID"></p>
<p></p>
<div name="divtagdefaultwrapper" id="divtagdefaultwrapper" style="font-family: Calibri,Arial,Helvetica,sans-serif; font-size: 12pt; color: #000000; margin: 0">
Matt,<br>
<br>
Attached is a small Fortran code that replicates the second problem.<br>
<br>
Chris<br>
<br>
<div style="color: rgb(40, 40, 40);" dir="ltr"></div>
</div>
<p></p>
<p>
<table style="WIDTH: 475px; BORDER-COLLAPSE: collapse" class="ImprintUniqueIDTable" border="0" cellspacing="0" cellpadding="0" cols="1">
<tbody>
<tr>
<td colspan="2"><font color="#7d7d7d" size="2" face="Arial"><img id="IMG1" border="0" align="absMiddle" src="cid:image76463f.JPG@e74baedb.4a899186" width="60" height="19"><img id="IMG1" border="0" align="bottom" src="cid:imageae8e3c.JPG@1f0a6dd3.4e92756a" width="410" height="26"></font></td>
</tr>
<tr>
<td style="HEIGHT: 17px" colspan="2">
<p class="ImprintUniqueID"><font face="Arial"><font size="2" face="Arial"><font color="#7d7d7d">dr. ir. Christiaan Klaij</font></font></font></p>
</td>
</tr>
<tr>
<td style="WIDTH: 222px; HEIGHT: 17px">
<p class="ImprintUniqueID"><span style="FONT-SIZE: 10pt"><font face="Arial"><font color="#7d7d7d">CFD Researcher</font></font></span></p>
</td>
<td style="WIDTH: 252px"><font size="2" face="Arial"><font color="#7d7d7d"></font></font></td>
</tr>
<tr>
<td><span style="FONT-SIZE: 10pt"><font color="#7d7d7d" face="Arial">Research & Development</font></span></td>
<td><font size="2" face="Arial"></font></td>
</tr>
</tbody>
</table>
</p>
<p>
<table style="WIDTH: 475px; BORDER-COLLAPSE: collapse" class="ImprintUniqueIDTable" border="0" cellspacing="0" cellpadding="0" cols="3">
<tbody>
<tr>
<td style="WIDTH: 217px">
<p class="ImprintUniqueID"><font color="#7d7d7d" size="2" face="Arial"></font> </p>
</td>
<td style="WIDTH: 139px">
<p class="ImprintUniqueID"><font color="#7d7d7d" size="2" face="Arial"><strong>MARIN</strong></font></p>
</td>
<td style="WIDTH: 117px">
<p class="ImprintUniqueID"><font color="#7d7d7d" size="2" face="Arial"></font> </p>
</td>
</tr>
<tr>
<td style="HEIGHT: 17px"><font color="#7d7d7d" size="2" face="Arial"></font></td>
<td><font color="#7d7d7d" size="2" face="Arial">2, Haagsteeg</font></td>
<td><font color="#7d7d7d" size="2" face="Arial"></font></td>
</tr>
<tr>
<td style="HEIGHT: 17px"><font face="Arial"><font size="2" face="Arial"><font color="#366092"><font color="#7d7d7d">E</font>
<a href="mailto:C.Klaij@marin.nl" title="Click to send email to Klaij, Christiaan" target="" style="">
C.Klaij@marin.nl</a></font></font></font></td>
<td><font color="#7d7d7d" size="2" face="Arial">P.O. Box 28</font></td>
<td><font color="#7d7d7d" size="2" face="Arial">T +31 317 49 39 11</font></td>
</tr>
<tr>
<td style="HEIGHT: 17px"><font size="2" face="Arial"><font color="#7d7d7d"></font></font></td>
<td><font color="#7d7d7d" size="2" face="Arial">6700 AA Wageningen</font></td>
<td><font size="2" face="Arial"><font color="#7d7d7d">F +31 317 49 32 45</font></font></td>
</tr>
<tr>
<td><font size="2" face="Arial"><font color="#7d7d7d">T +31 317 49 33 44</font></font></td>
<td><font color="#7d7d7d" size="2" face="Arial">The Netherlands</font></td>
<td><font color="#7d7d7d" size="2" face="Arial">I </font><a href="http://www.marin.nl" target="_top"><font color="#366092" size="2" face="Arial">www.marin.nl</font></a></td>
</tr>
</tbody>
</table>
</p>
<p></p>
<div name="divtagdefaultwrapper" id="divtagdefaultwrapper" style="font-family: Calibri,Arial,Helvetica,sans-serif; font-size: 12pt; color: #000000; margin: 0">
<div style="color: rgb(40, 40, 40);" dir="ltr"></div>
</div>
<p></p>
<p></p>
<p class="ImprintUniqueID"> </p>
<p><font color="#7d7d7d" size="2" face="Arial">MARIN news: </font><font style="font-family:Arial;font-size:10pt;color:#366092;"><span style="font-family:Arial;font-size:10pt;color:#366092;text-decoration:underline;"><a href="http://www.marin.nl/web/News/News-items/MARIN-at-SMM-Hamburg-September-912.htm" title="" target="" style="font-family:Arial;font-size:10pt;color:#366092;text-decoration:underline;"><span style="font-family:Arial; font-size:10pt; color:#366092; text-decoration:underline;">MARIN
at SMM, Hamburg, September 9-12</span></a></span><font style="font-family:Arial;font-size:10pt;color:#366092;"><br>
</font></font></p>
<p class="ImprintUniqueID"><font color="#7d7d7d" size="2" face="Arial">This e-mail may be confidential, privileged and/or protected by copyright. If you are not the intended recipient, you should return it to the sender immediately and delete your copy from
your system.</font></p>
<p class="ImprintUniqueID"> </p>
<p class="ImprintUniqueID"></p>
<p></p>
<div name="divtagdefaultwrapper" id="divtagdefaultwrapper" style="font-family: Calibri,Arial,Helvetica,sans-serif; font-size: 12pt; color: #000000; margin: 0">
<div style="color: rgb(40, 40, 40);" dir="ltr">
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> Klaij, Christiaan<br>
<b>Sent:</b> Friday, August 29, 2014 4:42 PM<br>
<b>To:</b> Matthew Knepley<br>
<b>Cc:</b> petsc-users@mcs.anl.gov<br>
<b>Subject:</b> RE: [petsc-users] PCFieldSplitSetSchurPre in fortran</font>
<div> </div>
</div>
<div>
<div name="divtagdefaultwrapper" id="divtagdefaultwrapper" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:#000000; margin:0">
Matt,<br>
<br>
The small test code (ex70) is in C and it works fine, the problem<br>
happens in a big Fortran code. I will try to replicate the<br>
problem in a small Fortran code, but that will take some time.<br>
<br>
Chris<br>
<br>
<div style="color:rgb(40,40,40)">
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> Matthew Knepley <knepley@gmail.com><br>
<b>Sent:</b> Friday, August 29, 2014 4:14 PM<br>
<b>To:</b> Klaij, Christiaan<br>
<b>Cc:</b> petsc-users@mcs.anl.gov<br>
<b>Subject:</b> Re: [petsc-users] PCFieldSplitSetSchurPre in fortran</font>
<div> </div>
</div>
<div>
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On Fri, Aug 29, 2014 at 8:55 AM, Klaij, Christiaan <span dir="ltr">
<<a href="mailto:C.Klaij@marin.nl" target="_blank">C.Klaij@marin.nl</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
I'm trying PCFieldSplitSetSchurPre with<br>
PC_FIELDSPLIT_SCHUR_PRE_SELFP in petsc-3.5.1 using fortran.<br>
<br>
The first problem is that PC_FIELDSPLIT_SCHUR_PRE_SELFP seems to<br>
be missing in fortran, I get the compile error:<br>
<br>
This name does not have a type, and must have an explicit type. [PC_FIELDSPLIT_SCHUR_PRE_SELFP]<br>
<br>
while compilation works fine with _A11, _SELF and _USER.<br>
</blockquote>
<div><br>
</div>
<div>Mark Adams has just fixed this.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
The second problem is that the call doesn't seem to have any<br>
effect. For example, I have<br>
<br>
CALL PCFieldSplitSetSchurPre(pc,PC_FIELDSPLIT_SCHUR_PRE_USER,aa,ierr)<br>
CALL PCFieldSplitSetSchurFactType(pc,PC_FIELDSPLIT_SCHUR_FACT_LOWER,ierr)<br>
<br>
This compiles and runs, but ksp_view tells me<br>
<br>
PC Object:(sys_) 3 MPI processes<br>
type: fieldsplit<br>
FieldSplit with Schur preconditioner, factorization LOWER<br>
Preconditioner for the Schur complement formed from A11<br>
<br>
So changing the factorization from the default FULL to LOWER did<br>
work, but changing the preconditioner from A11 to USER didn't.<br>
<br>
I've also tried to run directly from the command line using<br>
<br>
-sys_pc_fieldsplit_schur_precondition user -sys_ksp_view<br>
<br>
This works in the sense that I don't get the "WARNING! There are<br>
options you set that were not used!" message, but still ksp_view<br>
reports A11 instead of user provided matrix.<br>
</blockquote>
<div><br>
</div>
<div>Can you send a small test code, since I use this everyday here and it works.</div>
<div><br>
</div>
<div> Thanks,</div>
<div><br>
</div>
<div> Matt</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
Chris<br>
<br>
<br>
dr. ir. Christiaan Klaij<br>
CFD Researcher<br>
Research & Development<br>
E mailto:<a href="mailto:C.Klaij@marin.nl">C.Klaij@marin.nl</a><br>
T <a href="tel:%2B31%20317%2049%2033%2044" value="+31317493344">+31 317 49 33 44</a><br>
<br>
<br>
MARIN<br>
2, Haagsteeg, P.O. Box 28, 6700 AA Wageningen, The Netherlands<br>
T <a href="tel:%2B31%20317%2049%2039%2011" value="+31317493911">+31 317 49 39 11</a>, F
<a href="tel:%2B31%20317%2049%2032%2045" value="+31317493245">+31 317 49 32 45</a>, I
<a href="http://www.marin.nl" target="_blank">www.marin.nl</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
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>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</EXCLAIMER:ORIGINAL_BODY_AFTER>
<p></p>
</EXCLAIMER:TEXT_ONLY></EXCLAIMER:AD></EXCLAIMER:AD>
<p></p>
</body>
</html>