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<div class="moz-cite-prefix">On 12/4/21 2:27 AM, Matthew Knepley
wrote:<br>
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<blockquote type="cite" cite="mid:CAMYG4GnO+b_Dat73Zz+CJJ=c4YWXYWtibtqpCyUMy2POF0vP_g@mail.gmail.com">
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<div class="gmail_quote">This seems like hyperbole to me. At
worst you need one collective operation to figure out who is
in.
<div>This is no more expensive than one dot product, and
probably less. Unless you plan to do this millions</div>
<div>of times in the simulation, I do not see the dire
problem.</div>
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<p>OK, I'll stop worrying and learn to love the bomb :-)</p>
<p>- Adrian<br>
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<pre class="moz-signature" cols="72">--
Dr Adrian Croucher
Senior Research Fellow
Department of Engineering Science
University of Auckland, New Zealand
email: <a class="moz-txt-link-abbreviated" href="mailto:a.croucher@auckland.ac.nz">a.croucher@auckland.ac.nz</a>
tel: +64 (0)9 923 4611</pre>
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