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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> extropy-chat <extropy-chat-bounces@lists.extropy.org> <b>On Behalf Of </b>John Clark<br><b>Sent:</b> Monday, March 26, 2018 6:05 PM<br><b>To:</b> ExI chat list <extropy-chat@lists.extropy.org><br><b>Subject:</b> Re: [ExI] Tabby's star, computronium size<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal>On Mon, Mar 26, 2018 at 7:38 PM, <<a href="mailto:spike@rainier66.com" target="_blank">spike@rainier66.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <span style='font-size:14.0pt'> </span><o:p></o:p></p></div></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>> <o:p></o:p></span></p></div><p class=MsoNormal><i>To reduce latency and minimize intercommunication energy use.</i><o:p></o:p></p></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'></span><span style='font-size:13.5pt;font-family:"Arial",sans-serif'>That would explain why you'd make one region dense with </span><span style='font-family:"Arial",sans-serif'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:13.5pt'>computronium <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Arial",sans-serif'>but why make another region less dense? Why is it better if its lumpy?<o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Arial",sans-serif'>John K Clark <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If the system is metal-limited, then some regions are less dense in order to allow other regions to be more dense.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Another possibility: some regions are less dense in order to enable some specific function, such as the more computationally-intensive less communications-intensive activities. For instance, imagine the system wants to search for Mersenne Primes. In the neighborhoods working on that, high latency is irrelevant. A node might calculate away for years not needing to talk or listen at all. Those nodes need lots of space, so that they can collect sufficient energy and radiate waste heat.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Other applications might not compute as much, but they are far more yakkity, such as most things we do with our processors. These would do better in more densely packed smaller-node regions.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>spike<o:p></o:p></p></div></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></div></div></div></body></html>