<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Oct 28, 2016 at 6:32 AM, leejearl <span dir="ltr"><<a href="mailto:leejearl@126.com" target="_blank">leejearl@126.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi, everyone:<br>
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I have a distributed DMPlex representing a 2D finite volume mesh. I distributed it using the function "DMPlexDistribute()".<br>
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Then, I constructed the ghost cells using "DMPlexConstructGhostCells()".<br>
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The question is that I want to determine which cell is ghosted. I obtained all the cells using "DMPlexGetHeightStratum()", and<br>
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how can I kown which cell is ghosted?<br></blockquote><div><br></div><div>1) The ghost cells are marked as "hybrid", so you can call</div><div><br></div><div> ierr = DMPlexGetHybridBounds(dm, &cEndInterior, NULL, NULL, NULL);CHKERRQ(ierr);</div><div><div> ierr = DMPlexGetHeightStratum(dm, 0, NULL, &cEnd);CHKERRQ(ierr);</div></div><div><br></div><div>and then the ghost cells are [cEndInterior, cEnd).</div><div><br></div><div>2) There is also a label "ghost" which marks the ghost faces, and ghost cells which are non-local</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Thanks, all the helps are appreciated.<span class="gmail-HOEnZb"><font color="#888888"><br>
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leejearl<br>
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</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">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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