LC Hotline: 2-4531

From offsite: (925) 422-4531

 

Hours

Monday–Friday
8am–12pm, 1–4:45pm
B453 R1103 | Q-clearance area

 

Sequoia

Ranked among the world’s most powerful supercomputers, Sequoia supports two missions: quantify the uncertainties in numerical simulations of nuclear weapons performance and perform the advanced weapons science calculations needed to develop the accurate physics-based models for weapons codes. Sequoia is primarily water-cooled and significantly more energy efficient than comparable systems, which is essential to control operating costs.

Sequoia has been ranked at No. 1 and No. 2 on the Graph500 list since November 2012, indicating that it is one of the most efficient systems in the world for processing extremely vast (petabyte and exabyte-size) data sets. The Graph500 benchmark measures how quickly a system can search through a large data set—an important indicator of a system’s usefulness as computer scientists increasingly use supercomputers to analyze massive data-intensive workloads in addition to executing traditional modeling and simulation tasks. In June 2014, Sequoia traversed 16,599 billion edges per second

Zone
SCF
Vendor
IBM
CPU Clock Speed (Ghz)
1.6
User-Available Nodes
Login Nodes*
Batch Nodes
94,208
Debug Nodes
4 096
Total Nodes
98,304
CPUs
CPU Architecture
IBM PowerPC A2
Cores/Node
16
Total Cores
1,572,864
Memory Total (GB)
1,572,864
Memory/Node (GB)
16
Peak Performance
Peak TFLOPS (CPUs)
20,132.7
Peak CPU memory bandwidth (GB/s)
43
OS
RHEL/CNK
Interconnect
5D Torus
Parallel job type
multiple nodes per job
Program
ASC
Availability
Limited