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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Uncharted Territory, rapid warming greatly exceeds models' forecasts
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<blockquote data-quote="Hans Blaster" data-source="post: 77657532" data-attributes="member: 396028"><p>Sky2050 is the name of a particular scenario that was investigated by that group, it is not the name of the software. The exact name of the GCM is not given in that website, but it would be in a scientific paper where the Sky2050 results were presented.</p><p></p><p>There are many types of AI, some of them are useful, all of them are resource pigs (as you found out).</p><p></p><p>Weather and climate modeling have always been run on serious hardware requiring large amounts of power.</p><p></p><p>The biggest problems related to power usage in supercomputers is power density and cooling. The power-consuming units are packed so tightly that it is difficult to remove the waste heat. Recently the industry has moved to warm-water cooling. In the past (~15 years ago) nearly all supercomputers were cooled by running chilled air through them. Now most large supercomputers are cooled by using warm water. Water comes in at ambient temperatures, gets heated to sub-boiling temperature by the components and then cooled outside. This configuration allows less active cooling to be used even in hot climates. In some climates entirely passive cooling of the heated water may be possible.</p><p></p><p>The LUMI supercomputer is American technology. (It was built in your state of Wisconsin.) The "green" aspects of this system involve the power source (hydro) and design of the cooling systems.</p><p></p><p>I read that editorial. It was a bit overblown. 2% of all emissions is *ALL* of IT including the big internet companies. Supercomputers are a small fraction of that. Even the largest supercomputer uses less power than one Amazon/Facebook/Google/Apple data center.</p></blockquote><p></p>
[QUOTE="Hans Blaster, post: 77657532, member: 396028"] Sky2050 is the name of a particular scenario that was investigated by that group, it is not the name of the software. The exact name of the GCM is not given in that website, but it would be in a scientific paper where the Sky2050 results were presented. There are many types of AI, some of them are useful, all of them are resource pigs (as you found out). Weather and climate modeling have always been run on serious hardware requiring large amounts of power. The biggest problems related to power usage in supercomputers is power density and cooling. The power-consuming units are packed so tightly that it is difficult to remove the waste heat. Recently the industry has moved to warm-water cooling. In the past (~15 years ago) nearly all supercomputers were cooled by running chilled air through them. Now most large supercomputers are cooled by using warm water. Water comes in at ambient temperatures, gets heated to sub-boiling temperature by the components and then cooled outside. This configuration allows less active cooling to be used even in hot climates. In some climates entirely passive cooling of the heated water may be possible. The LUMI supercomputer is American technology. (It was built in your state of Wisconsin.) The "green" aspects of this system involve the power source (hydro) and design of the cooling systems. I read that editorial. It was a bit overblown. 2% of all emissions is *ALL* of IT including the big internet companies. Supercomputers are a small fraction of that. Even the largest supercomputer uses less power than one Amazon/Facebook/Google/Apple data center. [/QUOTE]
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Uncharted Territory, rapid warming greatly exceeds models' forecasts
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