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<p><br>
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<p>Hi All,</p>
<p><br>
</p>
<p>Genbox generates a tensor-product array of elements with layout:</p>
<p><br>
</p>
<p> (ix , iy, iz) (ix fastest moving, iy 2nd fastest, iz 3rd fastest)</p>
<p><br>
</p>
<p>If you want to have multiple boxes that continue in this ordering, you could</p>
<p>do the following, say:</p>
<p><br>
</p>
<p>box (1)</p>
<p>-5 -5 -5</p>
<p>-1 1 1.0</p>
<p>-1 1 1.0</p>
<p>0 2 1.0</p>
<p><br>
</p>
<p>box(2)</p>
<p>-5 -5 -10</p>
<p>-1 1 1</p>
<p>-1 1 1</p>
<p>1.0 9.0</p>
<p><br>
</p>
<p>etc</p>
<p><br>
</p>
<p>This would stack a 5x5x10 box on top of a 5x5x5 box</p>
<p><br>
</p>
<p>and topologically is the same as a 5x5 x (15) box</p>
<p><br>
</p>
<p>... i.e., things get concatenated in the z direction.</p>
<p><br>
</p>
<p><br>
</p>
<p>Also, note that you can use custom distributions in each direction, e.g.,</p>
<p><br>
</p>
<p>box</p>
<p>3 3 -5</p>
<p>0 0.1 0.3 10</p>
<p>0 .9 22 33</p>
<p>-5 9 1.5</p>
<p><br>
</p>
<p>which would give spacing [ 0 .1 .3 10] in the x direction</p>
<p><br>
</p>
<p>[0 .9 22 33] in y</p>
<p><br>
</p>
<p>and geometric partition of 5 elements in z on [-5:9]</p>
<p>with size ratio 1.5 between each adjacent z level.</p>
<p><br>
</p>
<p>hth</p>
<p><br>
</p>
<p>Paul</p>
<p><br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nek5000-users <nek5000-users-bounces@lists.mcs.anl.gov> on behalf of nek5000-users@lists.mcs.anl.gov <nek5000-users@lists.mcs.anl.gov><br>
<b>Sent:</b> Thursday, September 14, 2017 10:20:27 AM<br>
<b>To:</b> shivang agarwal<br>
<b>Subject:</b> Re: [Nek5000-users] Problems with post-processing multiple-boxes in MATLAB and Python</font>
<div> </div>
</div>
<div>
<div>Hi Daniel,</div>
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">I've had a similar problem before. Can you send your .box file so we can have a look? </div>
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">Best regards,</div>
<div id="AppleMailSignature"><br>
</div>
<div id="AppleMailSignature">Goran </div>
<div><br>
On Sep 14, 2017, at 11:13, "<a href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a>" <<a href="mailto:nek5000-users@lists.mcs.anl.gov">nek5000-users@lists.mcs.anl.gov</a>> wrote:<br>
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<blockquote type="cite">
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<p>Hi All,</p>
<p><br>
</p>
<p>I am using Nek5000 to simulate a buoyant plume rising from the centre of the floor of a square 2D domain. I am trying to use MATLAB and/or Python to post-process my data. Everything works fine when I post-process a simulation that was initialised with
only one box in my .box file. When, however, I run a simulation with multiple boxes (i.e. to cluster nodes), the local to global mapping of elements appears to go wrong and puts data into the wrong places. When plotting a contour plot of coordinates for
example, where I would expect a constantly changing colour gradient, I instead get back colour gradients in four quarters.</p>
<p><br>
</p>
<p>I haven't used this list before so if I need to provide examples of images or code I can do. If anybody else has had this problem and has found a way to overcome it by finding the correct mapping some help would be very much appreciated.</p>
<p><br>
</p>
<p>Best regards,</p>
<p><br>
</p>
<p>Daniel Ward<br>
</p>
</div>
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</blockquote>
<blockquote type="cite">
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