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High-Performance Computing

Exascale machines, accelerator roadmaps, and the infrastructure behind every large-scale workload.

High-Performance ComputingAnalysis

A Court Froze NSF's Supercomputer Handoff. The Operating Model Is the Story.

A federal judge halted NSF's handoff of the NCAR-Wyoming Supercomputing Center. The problem wasn't legality; it was that NSF's process was 'arbitrary and capricious,' and the expertise running the machine can't be quickly replaced.

SS
SCN Staff·Jun 4, 2026·10 min
National Labs & GovernmentResearch Computing
May 27
2026
News

Kajaani: a sovereign-plus-EuroHPC supercomputing campus comes into focus

Finland's new 33.9 PF Roihu supercomputer triples national capacity and shares its hydroelectric Kajaani site with EuroHPC's LUMI - a two-tier sovereign-plus-EuroHPC campus under one operator.

SCN Staff
Data Center InfrastructurePower & EnergyEuroHPC
May 18
2026
News

Spectra Clears Sandia's Supercomputer Acceptance. The Fall Mission-Code Gate Is the Real Test.

NextSilicon's Maverick-2 dataflow accelerator has met Sandia's Vanguard system-acceptance requirements on HPCG, LAMMPS, and SPARTA. The harder question comes this fall, when Sandia decides whether to move Spectra toward more demanding, mission-like ASC supercomputing workloads.

SCN Staff
National Labs & GovernmentAI-HPC ConvergenceGenesis MissionSupply Chain & Critical MaterialsDepartment of Energy
May 15
2026
News

NIST's New HPC Security Overlay Turns Compliance Into a Throughput Problem

The final SP 800-234 overlay covers the 287 controls in the SP 800-53B Moderate baseline, adds AC-10 for concurrent interactive sessions, and tailors 60 controls across the access, management, computing, and storage zones defined in SP 800-223.

SCN Staff
Exascale ComputingNational Labs & GovernmentSecurity
May 5
2026
News

Sustainability and Quantum Systems Move to Center of Jack Dongarra HPC Award

Devesh Tiwari named fifth recipient of the Jack Dongarra Early Career Award, with the committee citing production-deployed energy work and NISQ-era systems research.

SCN Staff
Power & EnergyResearch ComputingISC
Apr 27
2026
Analysis

Japan's Next Flagship Machine Abandons the Top500 Chase

FugakuNEXT pairs Fujitsu MONAKA-X CPUs with NVIDIA GPUs, ending Japan's all-Arm sovereign architecture and betting on throughput over benchmarks.

SCN Staff
Exascale ComputingTop500NVIDIANational Labs & GovernmentAI-HPC Convergence
Apr 24
2026
News

Sweden's Mimer Buys an AI Services Layer, Not a New Flagship

EuroHPC signed a EUR 29.76M contract with the relaunched Bull to deploy the Mimer AI Factory in Linköping, Sweden. At roughly a tenth the budget of Italy's IT4LIA, Mimer is less a new flagship machine and more a services envelope.

SCN Staff
AI InfrastructureNational Labs & Government
Apr 21
2026
Analysis

Slingshot Held Performance Under AI Traffic Patterns That Collapsed InfiniBand by 5x on Production Exascale

ISC 2026 research on LUMI, Leonardo, CRESCO8: Slingshot held performance; InfiniBand collapsed 5x under Incast, the AI gradient-sync traffic pattern.

SCN Staff
AI InfrastructureData Center InfrastructureNVIDIAExascale ComputingISC
Apr 16
2026
News

Argonne Turns a Plain-English Prompt Into 11,182 GCMC Runs on Aurora

A planner/executor agent hierarchy drove a 5,591-MOF screening campaign across 256 Aurora nodes. Orchestration overhead came in under 90 seconds per run.

SCN Staff
Exascale ComputingNational Labs & GovernmentDepartment of EnergyTop500Agentic AI
Apr 16
2026
Analysis

DOE's SYNAPS-I Platform Targets Unified AI Analysis Across Seven Beamline Facilities

DOE's SYNAPS-I targets unified AI analysis across seven beamline facilities. Can it coordinate deployment or will it fragment like existing implementations?

SCN Staff
Genesis MissionDepartment of EnergyNational Labs & GovernmentAI Infrastructure
Apr 7
2026
Analysis

A Missile Can Take Down an Availability Zone. That's Enough.

Iranian drone strikes took down AWS availability zones in Dubai and Bahrain, forcing a global reassessment of data center siting.

SCN Staff
Data Center InfrastructureHyperscaler StrategyPower & Energy
Mar 30
2026
News

Queen's and SFU Want to Build Canada's First Top-10 Supercomputer

Canada currently ranks 78th on the Top500. They'll Need Ottawa's Help.

SCN Staff
Research ComputingTop500
Mar 25
2026
News

Canada's Trillium supercomputer cracks a 50-year stellar mystery months after going online

A half-century-old question in astrophysics now has an answer, and the story behind it is as much about compute infrastructure as it is about stars.

SCN Staff
National Labs & GovernmentResearch Computing
Mar 16
2026
News

The shadow TOP500: private AI superclusters are redefining supercomputing

xAI's Cortex 2, Meta's mega-clusters, and the $100B NVIDIA-OpenAI deal represent computing installations that dwarf anything on the official rankings. The supercomputing world hasn't reckoned with what that means.

SCN Staff
Exascale ComputingHyperscaler StrategyAI Infrastructure
Mar 16
2026
News

100 Gigawatts: The Data Center Supercycle That's Rewriting Energy Policy

Power has replaced transistor density as the binding constraint on computing growth. The consequences are reshaping everything from real estate markets to geopolitics.

SCN Staff
Data Center InfrastructurePower & EnergyHyperscaler Strategy
Mar 16
2026
Analysis

ORNL's Next-Generation Data Center Institute: National Lab Expertise Meets the AI Buildout

The people who built Frontier - the world's first exascale supercomputer - are now designing the next generation of AI data centers. The hyperscalers should be paying attention.

SCN Staff
National Labs & GovernmentExascale ComputingData Center InfrastructureHyperscaler Strategy
Mar 12
2026
News

NSF's $457M Horizon Supercomputer Is Going to Morehouse College

The Leadership-Class Computing Facility's first new site selection in a generation lands at an HBCU. The workforce implications matter as much as the FLOPS.

SCN Staff
Exascale ComputingNational Labs & Government
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