<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Apr 3, 2018 at 6:20 PM, Jed Brown <span dir="ltr"><<a href="mailto:jed@jedbrown.org" target="_blank">jed@jedbrown.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Derek Gaston <<a href="mailto:friedmud@gmail.com">friedmud@gmail.com</a>> writes:<br>
<br>
> On Tue, Apr 3, 2018 at 4:06 PM Jed Brown <<a href="mailto:jed@jedbrown.org">jed@jedbrown.org</a>> wrote:<br>
><br>
>> Communicators should be cheap. One per library per "size" isn't a huge<br>
>> number of communicators.<br>
>><br>
><br>
> I agree - but that's not what we're getting here. We're getting one per<br>
> "object" (Mat / Preconditioner, etc.) associated with the library per<br>
> "size". If we can fix that I agree that there's no problem (we use a lot<br>
> of libraries... but not 2000 separate ones simultaneously!).<br>
<br>
</span>So PETSc needs to dup and attach a hypre communicator because they<br>
aren't interested in doing it themselves. Not hard to implement, just<br>
mildly annoying.<br>
</blockquote></div><br>Can't someone tell them its an xSDK requirement?</div><div class="gmail_extra"><br></div><div class="gmail_extra"> Matt<br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><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.caam.rice.edu/~mk51/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div>
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