<div dir="ltr"><div class="gmail_quote"><div dir="ltr">On Wed, Dec 12, 2018 at 9:12 AM Artur Palha Da Silva Clérigo - LR <<a href="mailto:A.PalhaDaSilvaClerigo@tudelft.nl">A.PalhaDaSilvaClerigo@tudelft.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Dear Matt,
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<div>Thank you for your quick reply. As for your question: "why would there be a difference? They should be numbered in the same way.”</div>
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<div>I see the degrees of freedom living on the periodic domain as the ones living at boundaries between interior elements. This is what I expect for non-periodic domain for nodal scalar field:</div>
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<div>Non-periodic:</div>
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<div>1 3 5</div>
<div>X-------------X-------------X</div>
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<div>| | |<br>
<div>X-------------X-------------X</div>
<div>0 2 4</div>
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<div>Periodic (vertical boundaries, topologically, the domain is a cylinder)</div>
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<div>1 3 1</div>
<div>X-------------X-------------X</div>
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<div>X-------------X-------------X</div>
<div>0 2 0</div>
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<div>This is not the expected behaviour?</div></div></div></blockquote><div><br></div><div>What I mean is that each vertex in the periodic domain gets 1 dof. Same procedure as non-periodic.</div><div>We do not duplicate vertices or anything like that.</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"><div style="word-wrap:break-word;line-break:after-white-space"><div>
<div>Once again thank you for your help.</div>
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<div>-artur palha</div>
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<div>On 12 Dec 2018, at 15:04, Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>> wrote:</div>
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<div dir="ltr">On Wed, Dec 12, 2018 at 9:01 AM Artur Palha Da Silva Clérigo - LR via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>> wrote:<br>
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<div style="word-wrap:break-word;line-break:after-white-space">Dear All,
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<div>I having been trying to add periodic domain functionality to my code. I am able to generate a periodic mesh with gmsh and load it using dmplex. The problem is that I am unable to have a numbering of the degrees of freedom that reflects the periodicity
(they are numbered as if there was no periodicity).</div>
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<div>Why would there be a difference? They should be numbered in the same way.</div>
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<div>I read this thread: <a href="https://lists.mcs.anl.gov/mailman/htdig/petsc-users/2018-October/036539.html" target="_blank">https://lists.mcs.anl.gov/mailman/htdig/petsc-users/2018-October/036539.html</a></div>
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<div>There it is mentioned that DMLocalizeCoordinates is required after loading the mesh.</div>
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<div>Yes, this makes cell-wise coordinates, which have a jump at the periodic boundary.</div>
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<div>My questions are the following:</div>
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<div>1. Is it correct that I need to run DMLocalizeCoordinates on my DM?</div>
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<div>Yes.</div>
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<div>2. I am currently using petsc4py but I am unable to find DMLocalizeCoordinates. Is this functionality missing or is there an alternative to it?\</div>
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<div>Its possible no wrapper has been written for this yet. Lisandro, is it missing? (I am at a meeting, or I would check).</div>
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<div> Thanks,</div>
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<div> Matt</div>
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<div>Thank you for your time.</div>
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<div>Kind regards,</div>
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<div>-artur palha</div>
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<div>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>
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<div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>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><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>