Dear Andreas,<br><br>Thank you for your prompt response. I do not know exactly what went wrong while installing of<br>ALUGRID or DUNE. Certainly, it might be a problem at my local installation.<br>Here is the test files (attachment) which I used for comparison between ALUSimplexGrid and UGGRID<br>
(3D simplex elements). I just used dune timer for CPU time comparison.<br><br>ALUGrid verson - 1.50 (1.23 as well), sequential compilation<br>UGGRID - which is available at DUNE website (with patch-5), sequential compilation<br>
DUNE- current SVN version<br>g++-4.5 and gcc-4.5<br><br>Please let me know if you observe the same behavior.<br>I wish you all a Merry Christmas.<br><br>Best Reagrds<br>Nagaiah<br><br><br><br><div class="gmail_quote">On Fri, Dec 23, 2011 at 6:01 PM, Dedner, Andreas <span dir="ltr"><<a href="mailto:A.S.Dedner@warwick.ac.uk">A.S.Dedner@warwick.ac.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
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<p><font>Hi.<br>
How can not think of any obvious reason for this.<br>
How did you measure that - especially comparing the performance<br>
of that one method between different grids? What did your test code look like<br>
and which codimension did you test?<br>
<br>
Best<span class="HOEnZb"><font color="#888888"><br>
Andreas</font></span></font></p><div><div class="h5"><font><br>
<br>
-----Original Message-----<br>
From: dune-bounces+a.s.dedner=<a href="mailto:warwick.ac.uk@dune-project.org" target="_blank">warwick.ac.uk@dune-project.org</a> on behalf of Nagaiah Chamakuri<br>
Sent: Fri 12/23/2011 1:29 PM<br>
To: <a href="mailto:dune@dune-project.org" target="_blank">dune@dune-project.org</a><br>
Subject: [Dune] accessing the subIndex on 3D elements using ALUGRID<br>
<br>
Dear Dune,<br>
<br>
I would like to ask one question about accessing the subIndex routine in<br>
ALUGRID:<br>
Observed that accessing the subIndex routine is slower(at least 40%) in ALU<br>
comparing with UG or YASP.<br>
This is only in 3D and it is fine again in 2D. Accessing the function looks<br>
as follows:<br>
indexset.subIndex(*it,i,dim);<br>
Is it a open issue in ALU grid (only for 3D elements) implementation or I<br>
made a mistake while ALU grid installation?<br>
I am using the latest svn version of DUNE and ALU-1.50.<br>
<br>
I wish you a merry Christmas and happy new year.<br>
<br>
Best Regards<br>
Nagaiah<br>
<br>
</font></div></div>
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</blockquote></div><br><br clear="all"><br>-- <br>Dr. Chamakuri Nagaiah<br>Institute of Mathematics and Scientific Computing<br>Heinrichstrasse-36, University of Graz,<br>A-8010, Graz, Austria. Ph(office) : (0043) 316 380 5063<br>
<br>