JEWELS

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JUWELS is a supercomputer at the Jülich Research Center . JUWELS is the successor to JUQUEEN and was put into operation in September 2018. At the time of commissioning, the system was the most powerful supercomputer in Germany. This is currently the hawk of the high-performance computing center (HLRS) at the University of Stuttgart .

For the last TOP500 supercomputer list before the official commissioning, a not yet complete configuration with 6 PetaFLOPS was measured and thus came in 23rd place on the TOP500 list from June 2018, on the corresponding Green500 list at least 29th place in the first list Commissioning (November 2018) JUWELS ranks 26th. In the TOP500 list from June 2019, JUWELS Module 1 made it to 30th place with 9.9 PetaFLOPS peak performance.

The JUWELS computing cluster is an installation of Bulls Sequana X1000 supercomputer. This is a cluster system in which computer blades, networking (Infiniband) and water cooling are integrated in so-called cells (Cell), consisting of 3 racks. Various compute blades with Intel Xeon SP, Intel Xeon Phi, ARM ThunderX2 processors and Nvidia GPUs are available. The system maintains easy accessibility and maintainability despite the water cooling.

Cooling with hot water (flow temperature over 40 degrees Celsius) is more energy-efficient than air cooling and enables waste heat to be reused (e.g. for heating other buildings), the so-called PUE value ( Power Usage Effectiveness ) in this case is close to 1. After current supercomputers cause energy costs in a similar amount to the acquisition costs, this value or the total energy consumption is becoming more and more important.

IBM's GPFS file system is used as the cluster file system .

Characteristic values

  • 2271 standard compute nodes each with 2 Intel Xeon SC 8168 and 96 GB RAM
  • 240 large memory compute nodes with 2 Intel Xeon SC 8168 and 192 GB RAM each
  • 48 GPU nodes each with two Intel Xeon SC 6148 and 4 Nvidia Volta V100 GPUs each
  • EDR-Infiniband networking
  • a total of 10.4 PetaFLOPS CPU and 1.6 PetaFLOPS GPU computing power, 122,448 CPU cores, 258 terabytes of RAM
  • The system should occupy 9 Bull Sequana X1000 cells.

Individual evidence

  1. https://www.top500.org/news/juwels-becomes-germanys-most-powerful-supercomputer/
  2. http://www.fz-juelich.de/ias/jsc/EN/Expertise/Supercomputers/JUWELS/JUWELS_node.html
  3. “Hawk” supercomputer inaugurated | Press release | 02/19/2020 | University of Stuttgart. Retrieved February 20, 2020 .
  4. https://www.top500.org/system/179424
  5. https://www.top500.org/green500/list/2018/06/
  6. JUWELS Module 1 - Bull Sequana X1000, Xeon Platinum 8168 24C 2.7GHz, Mellanox EDR InfiniBand / ParTec ParaStation ClusterSuite | TOP500 supercomputer sites. Retrieved January 27, 2019 .
  7. TOP500 List - June 2019 | TOP500 supercomputer sites. Retrieved July 18, 2019 .
  8. https://atos.net/en/products/high-performance-computing-hpc/bullsequana-x-supercomputers/bullsequana-x1000
  9. http://www.fz-juelich.de/ias/jsc/EN/Expertise/Supercomputers/JUWELS/Configuration/Configuration_node.html