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Sierra (supercomputer): Measurement & Technology

Sierra or ATS-2 is a supercomputer built for the Lawrence Livermore National Laboratory for use by the National Nuclear Security Administration as the second Advanced Technology System. It is primarily used for predictive applications in nuclear weapon stockpile stewardship, helping to assure the safety, reliability, and effectiveness of the United…

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Sierra (supercomputer) topic overview

The analysis highlights Measurement and Technology as prominent areas in the source structure around Sierra (supercomputer).

Related topics
13
Source areas
1
Connected nodes
14
Extracted relationships
11
Concept neighborhoods
13
Bridge connections
14

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 13 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Location
Lawrence Livermore National Laboratory
Active
Since 2018
Architecture
IBM POWER9 CPUs Nvidia Tesla V100 GPUs Mellanox EDR InfiniBand
Memory
2–2.4 PiB
Operating system
Red Hat Enterprise Linux
Operators
National Nuclear Security Administration

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Sierra (supercomputer) connects Entity context

The extracted context around Sierra (supercomputer) shows recurring relationship patterns in the source. For example, Sierra (supercomputer) → Since 2018 Another extracted example is Sierra (supercomputer) → IBM POWER9 CPUs Nvidia Tesla V100 GPUs Mellanox EDR InfiniBand. Use these groups to spot repeated connection types before inspecting the individual relationships.

Sierra (supercomputer)

Top relations

Active · 1
Sierra (supercomputer) → Since 2018
Architecture · 1
Sierra (supercomputer) → IBM POWER9 CPUs Nvidia Tesla V100 GPUs Mellanox EDR InfiniBand
Location · 1
Sierra (supercomputer) → Lawrence Livermore National Laboratory
Memory · 1
Sierra (supercomputer) → 2–2.4 PiB
Operating system · 1
Sierra (supercomputer) → Red Hat Enterprise Linux
Operators · 1
Sierra (supercomputer) → National Nuclear Security Administration
Power · 1
Sierra (supercomputer) → 11 MW
Purpose · 1
Sierra (supercomputer) → Nuclear weapon simulations
Ranking · 1
Sierra (supercomputer) → TOP500: 20, June 2025
Speed · 1
Sierra (supercomputer) → 125 petaflops (peak)

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

sierra gpus system ibm nodes nuclear tesla supercomputer national laboratory cpus november 2018 infiniband power9 top500 built second two four

Sierra (supercomputer) relationships Subject–Predicate–Object triples

TTTA extracted 11 structured relationships around Sierra (supercomputer). Examples in this analysis include Sierra (supercomputer) → Active → Since 2018 and Sierra (supercomputer) → Architecture → IBM POWER9 CPUs Nvidia Tesla V100 GPUs Mellanox EDR InfiniBand. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Sierra (supercomputer)ActiveSince 20181.00infobox
Sierra (supercomputer)ArchitectureIBM POWER9 CPUs Nvidia Tesla V100 GPUs Mellanox EDR InfiniBand1.00infobox
Sierra (supercomputer)LocationLawrence Livermore National Laboratory1.00infobox
Sierra (supercomputer)Memory2–2.4 PiB1.00infobox
Sierra (supercomputer)Operating systemRed Hat Enterprise Linux1.00infobox
Sierra (supercomputer)OperatorsNational Nuclear Security Administration1.00infobox
Sierra (supercomputer)Power11 MW1.00infobox
Sierra (supercomputer)PurposeNuclear weapon simulations1.00infobox
Sierra (supercomputer)RankingTOP500: 20, June 20251.00infobox
Sierra (supercomputer)Speed125 petaflops (peak)1.00infobox
Sierra (supercomputer)Websitehpc.llnl.gov/hardware/compute-platforms/sierra1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Sierra (supercomputer) bring nearby vocabulary together. In this analysis, examples include Laboratory, National and Supercomputer. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Sierra (supercomputer)
    • Laboratory
    • National
    • Supercomputer
    • Ibm
    • Nodes
    • System
    • Administration
    • Advanced
    • Architecture
    • Built
    • Edr
    • Infiniband
  • sierra (supercomputer)
    • Architecture
    • Technology
    • System
    • Laboratory
    • National
    • Supercomputer
    • Ibm
    • Nodes
    • Summit
    • Administration
    • Advanced
    • Built
  • lawrence livermore national laboratory
    • Administration
    • Advanced
    • Laboratory
    • Livermore
    • National
    • Security
    • Supercomputer
    • Technology
    • Architecture
    • Lawrence
    • Nuclear
    • System
  • national nuclear security administration
    • Administration
    • Advanced
    • Laboratory
    • Lawrence
    • Livermore
    • Security
    • Supercomputer
    • Technology
    • Architecture
    • National
    • Nuclear
    • Weapon
  • oak ridge national laboratory
    • Laboratory
    • National
    • Supercomputer
    • Administration
    • Advanced
    • Architecture
    • Lawrence
    • Livermore
    • Security
    • Technology
    • Nuclear
    • System
  • ibm power system
    • Four
    • Gpus
    • Node
    • Nvidia
    • Power
    • Power9
    • System
    • Technology
    • Two
    • V100
    • Cpus
    • Tesla
  • ibm
    • Four
    • Gpus
    • Node
    • Nvidia
    • Power
    • Power9
    • Two
    • V100
    • Tesla
    • Nodes
    • Sierra
    • System
  • infiniband
    • Lawrence
    • Livermore
    • Nvidia
    • Petaflops
    • Power
    • Power9
    • Security
    • Technology
    • Top500
    • V100
    • Weapon
    • Cpus

Connections between topic areas Semantic bridges

Bridges highlight paths between different parts of the Sierra (supercomputer) map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Map overview Semantic statistics

Sierra (supercomputer)

Nodes15
Edges14
Triples11
Avg. degree1.87
Density0.133333
Components1

Source & methodology

TTTA analyzes the structure around Sierra (supercomputer) to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Measurement & Technology, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Sierra (supercomputer) · EN edition · Analysis: TopicsToTalkAbout

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