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<div class="">On 15 Sep 2020, at 19:38, Jacob Faibussowitsch <<a href="mailto:jacob.fai@gmail.com" class="">jacob.fai@gmail.com</a>> wrote:</div>
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Hello all,
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<div class="">The ascii diagram showing the point numbering for DMPlexCreateBoxMesh seems off? There are duplicated numberings, and it does not seems to stack up against -dm_view ascii::ascii_info_detail. For example for a 2x2 2D mesh the bottom half is </div>
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<pre class="">11----6---12----7----13
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<pre class=""> |\ |\ |
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<pre class=""> | \ 1 | \ 3 |
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<pre class="">10 0 11 1 12
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<pre class=""> | 0 \ | 2 \ |
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<pre class=""> | \ | \ |
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<pre class=""> 8----4----9----5----10
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<div class="">But the corresponding support output from dm_view is </div>
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<div class="">Supports:</div>
<div class="">[0] Max support size: 6<br class="">
[0]: 8 ----> 17<br class="">
[0]: 8 ----> 19<br class="">
[0]: 9 ----> 17<br class="">
[0]: 9 ----> 18<br class="">
[0]: 9 ----> 23<br class="">
[0]: 9 ----> 27<br class="">
[0]: 10 ----> 24<br class="">
[0]: 10 ----> 25<br class="">
[0]: 10 ----> 27<br class="">
[0]: 11 ----> 18<br class="">
[0]: 11 ----> 19<br class="">
[0]: 11 ----> 21<br class="">
[0]: 11 ----> 22</div>
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<div class="">Which at least implies that face 4 = 17, face 10 = 19. Is this as a result of using a particular generator for the mesh? It was my understanding they all generate numberings in lexicographical CW ordering so should all produce the same numbering?</div>
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<div>It's definitely wrong. Two points can have the same number only if they are on different processes. It would be more illustrative to have e.g. a 1 rank and 2 ranks cases there.</div>
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<div>BTW GitLab issues should work again.</div>
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<div>Vaclav</div>
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<div class="">Best regards,<br class="">
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Jacob Faibussowitsch<br class="">
(Jacob Fai - booss - oh - vitch)<br class="">
Cell: (312) 694-3391</div>
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