<div dir="ltr"><div dir="ltr">On Fri, Aug 30, 2019 at 12:11 AM Adrian Croucher via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">hi<br>
<br>
If I have a local vector and I want to update all its ghost values from <br>
its non-ghost values, should I use DMLocalToLocalBegin()/End() ?<br>
<br>
I have tried it and it gives me an error: "This DM does not support <br>
local to local maps".<br>
<br>
The DM is a DMPlex. Is the local-to-local operation not implemented for <br>
DMPlex?<br></blockquote><div><br></div><div>Yes, I did not write a direct L2L. Everything must go through L2G->G2L.</div><div>If its a bottleneck, we could add it.</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">
Or should I be using something else to do this?<br>
<br>
- Adrian<br>
<br>
-- <br>
Dr Adrian Croucher<br>
Senior Research Fellow<br>
Department of Engineering Science<br>
University of Auckland, New Zealand<br>
email: <a href="mailto:a.croucher@auckland.ac.nz" target="_blank">a.croucher@auckland.ac.nz</a><br>
tel: +64 (0)9 923 4611<br>
<br>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="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>