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.

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
Processor	CPU	GPU		Rack	Compute Racks	Storage Racks	Switch Racks
Type	POWER9	V100		Type	AC922	SSC (4 ESS GL4)	Mellanox IB EDR
Count	9,216 2 × 18 x 256	27,648 6 × 18 x 256		Count	256 Racks × 18 Nodes	40 Racks × 8 Servers	18 Racks
Peak FLOPS	9.96 PF	215.7 PF		Power	59 kW	38 kW
Peak AI FLOPS		3.456 EF			13 MW (Total System)

Summit has over 10 petabytes of memory.

Summit Total Memory
Type	DDR4	HBM2	NVMe
Node	512 GiB	96 GiB	1.6 GB
Summit	2.53 PiB	475 TiB	7.37 PB

Architecture

System

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

Compute Rack

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

Compute Node

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