BBC news reports on IBMs plans for its Aquasar water cooled computer chips. IBM wants to make a sugar cube supercomputer processor with many water cooled layers.
It takes about 1,000 times more energy to move a data byte around than it does to do a computation with it once it arrives. What is more, the time taken to complete a computation is currently limited by how long it takes to do the moving.
Air cooling can go some way to removing this heat, which is why many desktop computers have fans inside. But a given volume of water can hold 4,000 times more waste heat than air.
Until recently, the supercomputer at the top of that list could do about 770 million computational operations at a cost of one watt of power. The Aquasar prototype clocked up nearly half again as much, at 1.1 billion operations. Now the task is to shrink it.
Japan’s next-generation Supercomputer (under construction and expected operation in 2012) will use the ultra-high-speed SPARC64
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