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<div>Hi,</div>
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<div>If you have created your vectors using sections, all you need is to call DMCreateSuperDM. See src/dm/impls/plex/tests/ex26.c:300 for an example.</div>
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<div>Blaise</div>
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<div>On Apr 17, 2023, at 1:30 PM, James Wright <jrwrigh.iii@gmail.com> wrote:</div>
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<div class="gmail_default" style="font-family:georgia,serif">Hello,<br>
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I currently have two DMPlex objects, both `DMClone`ed from the same "original" DMPlex object. They have different fields with different numbers of components on each of them. I would like to compose certain components from each into a single contiguous array.
I'd also like to do this from a DMGlobal vector. What is the best/most robust way to do that?<br>
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Obviously I can just `VecGetArrayRead` each of the vectors and loop through them manually, but that relies on knowledge of the array data layout. There's `DMPlexGetLocalOffsets`, but since I want to use the global Vec, there isn't a corresponding `DMPlexGetGlobalOffsets`
(that I can see anyways). This manually looping would also require that the underlying arrangement of the DOFs is the same between the two DMPlex objects, but I assume this is true from the `DMClone` operation.<br>
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Thanks,<br>
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<div style="color:rgb(80,0,80);font-family:georgia,serif"><span style="font-size: 12.8px;">James Wright</span></div>
<div style="color:rgb(80,0,80)"><font size="1" face="georgia, serif">Graduate Research Assistant, PhD</font><span>
<div style="font-size:12.8px"><font size="1" face="georgia, serif">University of Colorado Boulder<br>
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<div style="font-size:12.8px"><font size="1"><font face="georgia, serif">Cell: </font><font face="times new roman, serif">(864) 498 8869 </font></font></div>
<div style="color:rgb(34,34,34);font-size:12.8px"><font size="1" face="georgia, serif">Email:
<a href="mailto:james@jameswright.xyz" target="_blank">james@jameswright.xyz</a></font></div>
<div style="color:rgb(34,34,34);font-size:12.8px"><span style="font-family:georgia,serif;font-size:x-small">Website:
<a href="https://www.jameswright.xyz/" target="_blank">jameswright.xyz</a></span><br>
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<div>— <br>
Canada Research Chair in Mathematical and Computational Aspects of Solid Mechanics (Tier 1)</div>
<div>Professor, Department of Mathematics & Statistics<br>
Hamilton Hall room 409A, McMaster University<br>
1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada <br>
https://www.math.mcmaster.ca/bourdin | +1 (905) 525 9140 ext. 27243</div>
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