From WikiChip
Summit (OLCF-4)
< supercomputers
Revision as of 18:45, 12 June 2018 by At32Hz (talk | contribs) (System)

Summit (OLCF-4) is a 200-petaFLOP supercomputer operating by the DoE Oak Ridge National Laboratory. Summit was officially unveiled on June 8, 2018 as the fastest supercomputer in the world, overtaking Sunway TaihuLight.

History

Summit is one of three systems as part of the Collaboration of Oak Ridge, Argonne, and Lawrence Livermore Labs (CORAL) procurement program. Research and planning started in 2012 with initial system delivery arriving in late 2017. The full system arrived in early 2018 and the system was officially unveiled on June 8, 2018. Summit is estimated to have cost around $200 million as part of the CORAL procurement program.

ornl-summit-historical-roadmap.png

Overview

Summit was designed to deliver 5-10x improvement in performance for real big science workload performance over Titan. Compared to Titan which had 18,688 nodes (AMD Opteron + Nvidia Kepler) with a 9 MW power consumption, Summit slightly increased the power consumption to 13 MW, reduced the number of nodes to only 4,608, but tenfold the peak theoretical performance from 27 petaFLOPS to around 225 PF.

Summit has over 200 petaFLOPS of theoretical compute power and over 3 AI exaFLOPS for AI workloads.

Components  System
ProcessorCPUGPU RackCompute RacksStorage RacksSwitch Racks
TypePOWER9V100 TypeAC922SSC (4 ESS GL4)Mellanox IB EDR
Count9,216
2 × 18 x 256
27,648
6 × 18 x 256
 Count256 Racks × 18 Nodes40 Racks × 8 Servers18 Racks
Peak FLOPS9.96 PF215.7 PF Power59 kW38 kW
Peak AI FLOPS3.456 EF 13 MW (Total System)

Summit has over 10 petabytes of memory.

Summit Total Memory
TypeDDR4HBM2NVMe
Node512 GiB96 GiB1.6 GB
Summit2.53 PiB475 TiB7.37 PB

Architecture

System

Weighing over 340 tons, Summit takes up 5,600 sq. ft. of floor space at Oak Ridge National Laboratory. Summit consists of 256 compute racks, 40 storage racks, 18 switching director racks, and 4 infrastructure racks. Servers are linked via Mellanox IB EDR interconnect in a three-level non-blocking fat-tree topology.

summit-floorplan.svg


ornl summit open rack.jpg

Compute Rack

New text document.svg This section is empty; you can help add the missing info by editing this page.

Compute Node

New text document.svg This section is empty; you can help add the missing info by editing this page.