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CooLMUC-3

Completely hot water cooled high-performance computer

CooLMUC-3 is the pilot system for future system cooling concepts of high performance computing.

Dr. Herbert Huber | Head of High Performance Systems Department | LRZ

KPI's

400 TFlops/s Overall computing power
148 Compute nodes
9472 CPU cores
14,21 TByte Total memory

The new racks include in total further 151 compute nodes, which are equipped with Intel® Xeon® Skylake 6130 processors. Like the first installation of CooLMUC3 in November 2017, the new compute nodes and all integrated memory-modules, network interfaces and power supply units as well as all Intel® Omni-Path Switches are 100% directly cooled with hot water using the liquid cooling technology ColdCon® developed by MEGWARE.

„The starting signal for complete hot water cooling was already given in 2017 with the delivery of the first components of the CooLMUC3. For the current extension this year we have further optimized our technology and processes and we are optimally prepared for future projects.“ says Axel Auweter, CTO of MEGWARE.

Analogous to the first installation, this CooLMUC3 extension can achieve highest energy efficiency values due to the completely fanless system operation. In addition, up to 97% of the heat can be released into the water cycle.

The starting signal for complete hot water cooling was already given in 2017 with the delivery of the first components of the CooLMUC3. For the current extension this year we have further optimized our technology and processes and we are optimally prepared for future projects.

Axel Auweter · CTO MEGWARE

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