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Summit (supercomputer)

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Summit
SponsorsU.S. Department of Energy
OperatorsIBM
Architecture~9200 POWER9 44-core CPUs
~27,600 Nvidia Tesla V100 GPUs[1]
Power15 MW
Storage250 PB
PurposeScientific research
Websitewww.olcf.ornl.gov/olcf-resources/compute-systems/summit/

Summit or OLCF-4 is a supercomputer being developed by IBM for use at Oak Ridge National Laboratory.[2][3][4] The system will be powered by IBM's POWER9 CPUs and Nvidia Volta GPUs. The system is targeting 150–300 PFLOPS of performance at 10 MW of power.[5] The computer will be finished in 2017, and moved to Oak Ridge in 2018 where it will replace the Titan supercomputer.[6]

Design

Each node will have over half a terabyte of coherent memory (high bandwidth memory + DDR4 SDRAM) which will be addressable by all CPUs and GPUs plus 800GB of non-volatile RAM that can be used as a burst buffer or as extended memory.[7] The Power9 CPUs and Volta GPUs will be connected using NVIDIA's high speed NVLink. This allows for a heterogeneous computing model.[8] To provide a high rate of data throughput, the nodes will be connected in a non-blocking fat-tree topology using a dual-rail Mellanox EDR InfiniBand interconnect for both storage and inter-process communications traffic which delivers both 200Gb/s bandwidth between nodes and in-network computing acceleration for communications frameworks such as MPI and SHMEM/PGAS.

References

  1. ^ Alcorn, Paul (20 November 2017). "Regaining America's Supercomputing Supremacy With The Summit Supercomputer". Tom's Hardware. Retrieved 20 November 2017.
  2. ^ R. Johnson, Colin (15 April 2015). "IBM vs. Intel in Supercomputer Bout". EE Times. Retrieved 29 December 2015.
  3. ^ Shankland, Steven (14 September 2015). "IBM, Nvidia land $325M supercomputer deal". C|Net. Retrieved 29 December 2015.
  4. ^ Noyes, Katherine (16 March 2015). "IBM, Nvidia rev HPC engines in next-gen supercomputer push". PC World. Retrieved 29 December 2015.
  5. ^ Smith, Ryan (17 November 2014). "Nvidia Volta, IBM Power9 Land Contracts for New US Government Supercomputers". Anandtech. Retrieved 14 March 2017.
  6. ^ Brueckner, Rich (14 December 2015). "Buddy Bland Presents an Update on the Summit Supercomputer". Inside HPC. Retrieved 29 December 2015.
  7. ^ Lilly, Paul (January 25, 2017). "NVIDIA 12nm FinFET Volta GPU Architecture Reportedly Replacing Pascal In 2017". HotHardware. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  8. ^ "Summit and Sierra Supercomputers: An Inside Look at the U.S. Department of Energy's New Pre-Exascale Systems" (PDF). November 1, 2014. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)