How to Make Computers More Powerful and More Energy Efficient at the Same Time
“Sequoia, is the world’s most powerful supercomputer”, … also there is another machine that “is the first commercial machine cooled by hot water”.
“While Sequoia is more than one and a half times faster than its nearest competitor, it is almost two and a half times more energy efficient. Meanwhile, the water-cooled Leibniz machine consumes 40 percent less energy than traditional air-cooled versions. Since water is able to remove heat 4,000 times more efficiently than air, hot water is an innovative means to more efficiently cool computers than the conventional approach based on chilled water. It also allows energy to be captured from the system and reused to heat the buildings during winter. These advances afford potential energy savings of around 1 million euros per year.”