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Immersion-1: The World's largest FPGA Cluster

immersion-1-chipsBuilt into the world's first dedicated 2-phase immersion cooling facility, Immersion-1 runs on 3M™ Novec™ Engineered Fluids. With the performance of a supercomputer, it is one of the most energy efficient ones worldwide - even more so when considering the hot and humid climate of Hong Kong.

Originally, Immersion-1 started as a project on a much smaller scale using traditional air-conditioning for cooling. It soon became apparent that traditional air cooling would impose many challenges on space and electricity usage. With 6048 FPGA chips, combining 890 million logic cells, Immersion-1 has become a massive prototype and proof of concept for a whole new generation of computing.

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Since the special application tweaks the maximum performance out of each FPGA, they generate much more heat than in traditional FPGA applications. Often, FPGAs have to be throttled down or are not running at maximum performance due to cooling issues. In case of Immersion-1, the cluster would not be able to run on passive cooling and the FPGA chip temperature rises within seconds above its maximum specifications.

Only by using immersion cooling it was possible to build and run Immersion-1 with its very demanding cooling requirements. More than 90% of the electricity could be saved in comparison to traditional air cooling.

If ordinary servers would have been used to achieve the same computing performance, then more than 8,500 Dual Xeon 1U servers would have to be placed in more than 200 racks with 42U height. The power rating would be about 6.4 Megawatt generating around 45,000 tons of CO2 every year. That is equivalent to saving the same amount of CO2 as produced by 1.65% of all cars in Hong Kong.

Technical Details



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Global Projects

Hong Kong is one of the fastest-paced cities in the world. It has remained the world's freest economy since 1995, with low tax, no import and export restrictions, free trade and travel. Being located in the financial powerhouse and tech hub of Asia, we are well equipped to work on global projects. No matter how big, or small.

Hot & Humid

Most would consider Hong Kong's cramped living conditions, sky high property prices, and hazy skies as very challenging. When it comes to data centers, hot and humid climates are one of the biggest problems too. Hong Kong's power hungry infrastructure is a major disaster for the people's wallet and the environment. On the bright side, it's habitats like this that push companies to go the extra mile and make a change.