Summit (supercomputer)

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Image of the summit

The Summit (also OLCF-4 called) is a supercomputer the company IBM , which in the Oak Ridge National Laboratory in the United States was taken in June 2018 operation. At the time of commissioning, the Summit was the fastest supercomputer in the world according to the Linpack benchmark with a peak performance of around 122 Peta FLOPS and has topped the TOP500 list since June 2018. This means that after more than 2 years, the supercomputer list is again headed by an American system. At the same time, a system for military research, almost identical in terms of technology , was built with Sierra .

The Summit has been on the Green500 list for computational efficiency in 5th place since November 2019.

specification

The supercomputer consists to a large extent of components specially manufactured by IBM, but has a hybrid architecture overall. H. Most of its computing power is not provided by the IBM Power9 main processors, but by 27648 GPU computing accelerators of the Nvidia Tesla V100 type , which are programmed using the CUDA libraries. In addition to the usual double-precision floating point operations, the computing accelerators also support lower precision for AI training purposes and should provide a total of 3.3 ExaFLOPS here.

  • 4608 computers of the type IBM OpenPower9 AC922 fill over 200 standard 19-inch racks , probably 18 nodes per rack. The racks are set up in 8 rows, presumably with 32 racks per rack row, the computer occupies 520 square meters
  • 10 PetaByte RAM in total (512 GB DDR4 RAM per computer)
    • 96 GB of HBM2 memory included in the Nvidia computing accelerators (16 GB per GPU)
    • Mass storage device per computer: 1600 GB
  • 2 times 100 Gb / s InfiniBand networking from Mellanox
  • two Power9 CPUs with 22 cores each and 6 Nvidia Tesla V100 GPUs per computer
  • 250 petabytes of hard disk space on GPFS file systems with a total read / write bandwidth of 2.5 TB / s
  • Electrical output approx. 13  MW .

The computer performs around 12 times as much as its predecessor Titan with an energy consumption of 9 MW and 18 PetaFLOPS computing power. The computing efficiency (GFLOPS / watt) has increased by a factor of 8 compared to its predecessor.

use

During the COVID-19 pandemic , the computer is used to check calculations about possible drug compounds and their usability as a vaccine. The calculations took 2 days.

Web links

Individual evidence

  1. Tilman Wittenhorst: US supercomputer "Summit" is the fastest computer in the world. In: Heise online . June 9, 2018, accessed June 26, 2018 .
  2. https://www.top500.org/system/179397
  3. November 2019 | TOP500 supercomputer sites. Retrieved April 3, 2020 .
  4. Timothy Prickett Morgan: Details Emerge On "Summit" Power Tesla AI Supercomputer. In: The Next Platform. November 20, 2016, accessed June 26, 2018 .
  5. Fastest computer in the world is now fighting against Corona
  6. heise online: The world's fastest supercomputers count on solutions against coronavirus. Retrieved on April 3, 2020 : “With Summit, the two researchers Micholas Smith and Jeremy C. Smith tested the behavior of 8000 active substances for the SARS-CoV-2 coronavirus for two days. A sequencing of the virus by Chinese researchers served as the basis. "