<div dir="ltr">Interesting, but depressing, presentation.<div><br></div><div style>At HotInterconnects in 2011, Intel gave a presentation about the reductions in power per flop over time. The corresponding communication power consumption per bit was flat (no improvement). Projecting the trends forward and with a 20 Mw power budget, an exascale machine's network would consume all the power leaving nothing for computation.</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 15, 2013 at 4:58 AM, Eugen Leitl <span dir="ltr"><<a href="mailto:eugen@leitl.org" target="_blank">eugen@leitl.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
<a href="https://docs.google.com/file/d/0B83UyWf1s-CdZnFoS2RiU2lJbEU/edit?usp=drive_web" target="_blank">https://docs.google.com/file/d/0B83UyWf1s-CdZnFoS2RiU2lJbEU/edit?usp=drive_web</a><br>
<br>
[61 pages of slides]<br>
<br>
Why we need Exascale and why we<br>
won’t get there by 2020<br>
<br>
Horst Simon<br>
<br>
Lawrence Berkeley National Laboratory<br>
<br>
Optical Interconnects Conference<br>
<br>
Santa Fe, New Mexico<br>
<br>
May 6, 2013<br>
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</blockquote></div><br></div>