XC Series

Cray XC Series Supercomputers

The Cray XC series delivers on Cray's commitment to an adaptive supercomputing architecture that provides both extreme scalability and sustained performance.

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The Cray® XC™ Series: Supercomputing Defined

Cray XC series supercomputers are designed to handle the most challenging workloads requiring sustained multi-petaflop performance. They incorporate the Cray Aries™ high performance network interconnect for low latency and scalable global bandwidth, as well as the latest Intel® Xeon® processors, Intel® Xeon Phi™ coprocessors and NVIDIA® Tesla® GPU accelerators. The XC series delivers on Cray's commitment to performance supercomputing with an architecture that provides extreme scalability and sustained performance.

  • The Cray® XC50™ accelerated GPU supercomputer combines the performance of NVIDIA’s latest Tesla® P100 PCIe GPUs with Cray’s Aries network and high-performance software environment. It’s our fastest system with peak system performance of 500 PF, and 1 PF in a single cabinet.
  • The Cray® XC40™ system offers the combined advantages of the Aries interconnect and Dragonfly network topology, multi-core and many-core processors, integrated I/O acceleration options and Cray OS and programming environment, delivering up to 100 PF sustained system performance. It’s designed for production supercomputing and user productivity.
  • The Cray XC40-AC air-cooled model has smaller, less dense supercomputing cabinets with no requirement for liquid coolants or extra blower cabinets. A reduced network topology lowers costs, and the system is compatible with the compute technology, OS, ISV and software stack support of high-end XC40 systems.

Featured Resources

Cray Launches Next-Generation Supercomputer

Cray XC50 System Delivers One Petaflop of Peak Performance in a Single Cabinet

Cray XC Series Brochure

The Cray XC series supercomputer is a groundbreaking architecture upgradable to over 500 petaflops per system and delivering sustained and scalable application performance.

Cray XC50 Supercomputer

The Cray XC50 accelerated GPU supercomputer combines the performance of NVIDIA’s latest Tesla P100 PCIe GPUs with Cray’s Aries network and high-performance software environment.

Cray XC Series Supercomputers

Cray XC series supercomputers: advancing research, engineering and scientific discovery for all mankind.

Cray XC Series Interconnect and Network Technology

The Aries interconnect and Dragonfly network deliver sustained performance advantage.

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DataWarp™ Applications I/O Accelerator

Drive your data at warp speed.

Big data, HPC and supercomputing storage infrastructure managers need a balanced compute-memory-storage system architecture with an innovative cache tier featuring SSD and in-memory flash. The tier should accommodate “bursty” application I/O patterns through a combination of high-bandwidth and low-latency I/O forwarding to deliver thousands to millions of aggregate IOPS to applications.

The Cray® XC™ series DataWarp™ applications I/O accelerator technology addresses these modern I/O needs by delivering a balanced and cohesive system architecture from compute to storage. The DataWarp accelerator allocates storage dynamically in either private (dedicated) or shared modes. Storage performance quality of service can be provided to individual applications, based on the user’s policies.

DataWarp I/O Accelerator Brochure
DataWarp Video

Cray DataWarp technology delivers:

  • Flash SSD I/O blades and Aries high-speed interconnect
  • Data virtualization software, management software and I/O forwarding mechanisms
  • Ability to scale up a data pool to customer requirements
  • Performance gains: I/O and total system compute, bandwidth and IOPS
  • I/O system flexibility, data shared across multiple levels
  • Integration and support: hardware, software, networking, partners, open source
  • Reduced storage system costs and improved total cost of ownership
  • System balance and efficiency across memory-flash-disk
  • Workflow efficiencies and ease-of-use advances


Global storage cache

While leveraging Cray’s proven domain expertise in storage, the DataWarp accelerator can be used as a global storage cache for parallel file systems (PFS) such as Lustre®, General Parallel File System (GPFS™) and PanFS™.

Customers who purchase the DataWarp accelerator options with their Cray® XC40™ systems will gain access to future releases of the technology and the complete DataWarp accelerator roadmap, which will allow for an expanding repertoire of use cases.

Software for Cray XC Series Supercomputers

Driving Maximum Program Performance and System Uptime

Programming Productivity and Performance – With Cray® XC™ series supercomputers, Cray takes a comprehensive approach to the software programming environment, delivering a dedicated suite of HPC-optimized Linux OS and programming offerings. We also work closely with domain experts to deliver a wide variety of unique and innovative partner solutions.

Maximizing Uptime with System Management – To get the most workload production out of your supercomputing system, Cray provides a robust system management stack with a broad variety of utilities and support, optimizing production HPC environment reliability.

Comprehensive Programming Environment Support for:

  • Programming languages
  • Programming models
  • Compilers
  • Tools
  • I/O libraries
  • Optimized scientific libraries
  • Partner middleware
  • Partner ISV codes and

Cray System Management Software Drives:

  • More system uptime
  • More workload productivity and throughput
  • More efficient upgrades and updates while in operation
  • More rollback protection, less lost operation or downtime
  • More ease-of-use leveraging industry standardization

Cray Linux® Environment

Cray XC series systems utilize the Cray Linux Environment (CLE). CLE is a suite of high performance software that includes a Linux-based operating system designed to run large complex applications and scale efficiently to more than 500,000 processor cores. The Linux environment features a compute kernel that can be configured to match different workloads. When running highly scalable custom applications, the compute nodes can be run in a lightweight mode, ensuring that operating system services do not interfere with application scalability. This special design ensures virtually nothing stands between the user's scalable application and the hardware.

With CLE many independent software vendor (ISV) applications are available "out of the box" under Cluster Compatibility Mode (CCM). In addition, selected ISV applications are highly tuned and available under Extreme Scalability Mode (ESM).

Examples of Typical Applications Available Under ESM

A few of the HPC industry applications that may be run on Cray XC systems include:

  • Astrophysics: Cactus, Chimera, Gadget, QCD-Milc, ZEUS-MP
  • Chemistry/Materials: ABINIT, AMBER, CPMD, DCA++, GAMESS, Gromacs, LAMMPS, LS3DF, LSMS, Madness, NWCHEM, PARATEC, Qbox, Quantum Espresso, Siesta, TBMD, VASP
  • Climate/Weather: 4DVAR, CAM, CCSM, HIRLAM, HYCOM, MM5, POP, WRF
  • Fluid Mechanics/Combustion: AcuSolve, DNS, OpenFOAM, Overflow, PFLOTRAN, S3D
  • Fusion: Aorsa, GTC
  • Solid Mechanics: CTH, LS-DYNA

Programming Environment

The CLE programming environment includes tools designed to complement and enhance each other, resulting in a rich, easy-to-use programming environment that facilitates the development of scalable applications.

  • Parallel programming models: MPI, Cray SHMEM, UPC, OpenMP, OpenACC, and Co-Array Fortran within the node
  • MPI standard, optimized to take advantage of the scalable interconnect in Cray XC series systems
  • Various MPI libraries supported under Cluster Compatibility Mode
  • Support for the ISO Fortran standard (2008) including parallel programming using coarrays, C/C++ and UPC
  • High performance optimized math libraries of BLAS, FFTs, LAPACK, ScaLAPACK, SuperLU and Cray scientific libraries
  • Cray Performance Tool Suite with CrayPAT™ and Cray Apprentice2™

Docker Container Support

Docker containers for XC systems are designed to provide better application portability and bring ease-of-use to running highly-scalable applications on Cray’s advanced supercomputers.

With Docker as part of Cray’s official software distribution, XC series users will be able to implement software containers that package an entire software stack – application codes, shared libraries, base operating system files, user environment variables, dependencies and more – into easily-deployable images that contain everything an application needs to run with increased efficiency across multiple platforms.

Cray System Management Support

To get the most workload production out of your supercomputing system, Cray provides a robust system management stack with a broad variety of utilities and support.

The Cray System Management Workstation leverages industry-standard infrastructure and interfaces to improve ease of use and shorten learning curves, while also providing management innovations to optimize production HPC environment reliability.

To maximize uptime, Cray supports more efficient methods of performing staged system upgrades and rolling out patches while the system remains operational. XC series supercomputers continue to get real work done while intelligently scheduling and managing updates as resources become available and around running jobs.

Cray’s management tools also provide the ability to snapshot the system state and provide protective rollback support, reducing lost operation cycles and downtime managing system updates. The Image Creation and Provisioning Service, Configuration Management Framework and Power Management utilities enable datacenter staff to administer their supercomputers with efficiency and confidence.


The Cray System Snapshot Analyzer (SSA) proactively addresses system health with automated and remote system status checks.

Cray® XC™ Series: Adaptive Supercomputing

Extreme Scalability and Sustained Performance

Cray has an established reputation for regularly running the biggest jobs on the largest numbers of nodes in the HPC industry. The Cray® XC™ series puts even more focus on solving extreme capability computational challenges. Cray XC series systems scale hardware, networking and software across a broad performance spectrum to deliver true sustained, real-world production performance.

Aries™ Interconnect and Dragonfly Topology

To provide this breakthrough performance and scalability, Cray XC series supercomputers integrate the HPC-optimized Aries interconnect. This innovative intercommunications technology, implemented with a high-bandwidth, low-diameter network topology called Dragonfly, provides substantial improvements on all of the network performance metrics for HPC: bandwidth, latency, message rate and more. Delivering global bandwidth scalability at reasonable cost across a distributed memory system, this network gives programmers global access to all of the memory of parallel applications and supports the most demanding global communication patterns.

Cray XC series systems utilize Dragonfly network topology, constructed from a configurable mix of backplane, copper and optical links, providing scalable global bandwidth, avoiding expensive external switches and enabling easy in-place upgrades for growing bandwidth requirements in the future. Cray XC air-cooled systems utilize backplane and copper cabling only to reduce costs for technical enterprise applications.

The Aries ASIC provides the network interconnect for compute nodes on Cray XC series base blades and implements a standard PCI Express Gen3 host interface, supporting a wide range of HPC processing compute engines. The universal nature of Cray XC series open architecture allows the system to be configured with the best available devices today, then augmented or upgraded in the future with the user’s choice of processors, coprocessors and accelerators using processor daughter cards.

Intel® Xeon® Multi-Core Processors

Cray XC series systems use industry-leading Intel Xeon processors, scaling in excess of one million cores. This architecture implements two processor engines per compute node and has four compute nodes per blade. Compute blades stack in eight pairs (16 to a chassis), and each cabinet can be populated with up to three chassis, culminating in up to 384 sockets per cabinet.

The Intel Xeon multi-core processors provide up to 8,448 cores and enable 297 teraflops per Cray XC liquid-cooled cabinet, and 99 teraflops per Cray XC air-cooled cabinet. Future processor upgrades will boost clock frequency and bump the number of embedded cores, accelerating overall system performance. The open architecture of the Cray XC series offers intranode flexibility, empowering users with the option to run applications with either scalar or accelerator processing elements depending on their requirements for parallelism.

Intel® Xeon Phi™ Many-Core Processors

Cray XC series supercomputers also support Intel Xeon Phi many-core processors. These “many-core” processor compute blades are self-hosting and can be used in homogenous Cray XC systems or in a hybrid mode together with Intel Xeon multi-core processors. The Cray XC supercomputer architecture supports heterogeneous systems so users always have the most optimal processor type and compute node structure to best support their diverse applications. These Intel Xeon Phi processor compute blades support four single-socket compute nodes per blade, or up to 586 TF/cabinet of peak performance.

NVIDIA® Tesla® GPU Accelerators

Cray XC series supercomputers support CPU-hosted NVIDIA Tesla GPU accelerators. Two options are available: the NVIDIA Tesla K40 for the XC40 system and the NVIDIA Tesla P100 PCIe for the Cray XC50 system. NVIDIA’s P100 GPU accelerator delivers over 3,500 embedded cores and flexible mixed-precision computing options. The P100 offers flexible double-precision, single-precision or half-precision compute operation and also integrates high-bandwidth memory into the package, enabling up to 3x memory bandwidth improvements over prior-generation external-memory GPU solutions.

The Cray XC50 system with the Tesla P100 delivers superior application performance, memory bandwidth and performance per watt. Cray also supports multiple programming models for the P100 GPU accelerator, including the Cray compiler, OpenACC directives-based coding and CUDA.

Custom and ISV Jobs on the Same System — Extreme Scale and Cluster Compatibility

Based on generations of experience with both environments, Cray has leveraged a single machine architecture to run both highly scalable custom workloads as well as industry-standard ISV jobs via the powerful Cray Linux Environment (CLE). CLE enables a Cluster Compatibility Mode (CCM) to run Linux/x86 versions of ISV software without any requirement for porting, recompiling or relinking. Alternatively, Cray’s Extreme Scalability Mode (ESM) can be set to run in a performance-optimized scenario for custom codes. These flexible and optimized operation modes are dynamic and available to the user on an individual job basis.

ROI, Upgradeability and Investment Protection

Besides being customizable for each user’s requirements, the Cray XC series supercomputer architecture is engineered for easy, flexible upgrades and expansion, a benefit that prolongs its productive lifetime and the user’s investment. As new technology advancements become available, users can take advantage of these next-generation progressions deep into the life cycle before ever considering replacing an HPC system.

Product Literature

Cray XC Series Brochure

The Cray XC series supercomputer is a groundbreaking architecture upgradable to over 500 petaflops per system and delivering sustained and scalable application performance.

Cray XC50 Supercomputer

The Cray XC50 accelerated GPU supercomputer combines the performance of NVIDIA’s latest Tesla P100 PCIe GPUs with Cray’s Aries network and high-performance software environment.

Cray XC Series Air-Cooled System

The Cray XC series air-cooled supercomputer features slightly smaller and less dense supercomputing cabinets with no requirement for liquid coolants or extra blower cabinets. 

Cray DataWarp Applications I/O Accelerator

The DataWarp accelerator delivers application-ready storage I/O to high-velocity data-driven workflows.

Cray XC Series Interconnect and Network Technology

The Aries interconnect and Dragonfly network deliver sustained performance advantage.

Cray XC40 Intel Xeon CPU Processor Compute Blade

Adaptive supercomputing through flexible design

Cray XC40 Intel Xeon Phi Processor Compute Blade

Adaptive hybrid computing and scalable many-core performance

Cray XC50 NVIDIA Tesla P100 GPU Accelerator Compute Blade

NVIDIA’s Tesla P100 GPU accelerators deliver in excess of 3,500 embedded cores and flexible mixed-precision computing options.

Cray XC40 NVIDIA Tesla K40 GPU Accelerator Compute Blade

Supercomputer users procure their machines to satisfy specific and demanding requirements. But they need their systems to grow and evolve to maximize machine lifetime and return on investment.

Cray XC Series Software Environment

With liquid-cooled and air-cooled XC series supercomputers, Cray takes a comprehensive approach to the software environment, delivering a dedicated suite of HPC-optimized Linux OS, compilers, libraries and SW tools, as well as a variety of unique and innovative partner solutions.

Intel Parallel Studio XE 2016

The Intel Parallel Studio XE 2016 tool suite simplifies the design, development, debug and tuning of code that utilizes parallel processing to boost application performance.

Case Studies & Customer Profiles

Theta Takes on Astronomy, Cosmology and Neuroscience

The "Theta" early science supercomputing system at the Argonne Leadership Computing Facility is paving the way for a new generation of ultra-high performance supercomputers.

NERSC Improves Overall HPC Energy Efficiency with Free Cooling and Technology Innovations of the Cray XC30 Supercomputer

While exascale systems are expected to produce unprecedented science, they are also expected to consume tens of megawatts of power. As power costs continue to rise, even modest improvements in the power required for cooling can translate to megawatts and mega dollars saved per year.

Why PGS Made the Move from Clusters to Supercomputers

Faced with the most complex seismic survey ever collected, PGS took a new approach to system design ... and succeeded.

National Nuclear Security Administration Ensures Safety and Security of U.S. Nuclear Stockpile with Cray XC40 “Trinity” Supercomputing Solution

Maintaining the safety, security and reliability of the country’s nuclear weapons is critical. The U.S. government formed the Stockpile Stewardship Program under the direction of the NNSA and selected an integrated Cray supercomputer, storage and I/O acceleration solution to provide the computational power they needed.

Applying Big Data Analysis Techniques to Simulated DNA Data

Researchers from the Centre for Biomolecular Sciences at the University of Nottingham along with the Edinburgh-based Cray Centre of Excellence team have been carrying out a pioneering study applying big data analysis techniques to simulation-generated DNA data.

The Pawsey Centre’s Cray XC40 Supercomputer “Magnus” Gives Researchers a Big Advantage in Fight Against Lung Disease

Chronic respiratory diseases interrupt the airways and other lung structures, affecting hundreds of millions of people worldwide. Researchers created a first-ever 3D model of the lung using “Magnus,” Pawsey Supercomputing Centre’s Cray XC40 supercomputer, with the goal of improved delivery of aerosolized medications.

HLRS “Hornet” Cray XC40 System Dominates on Extreme-Scale Simulations

The High Performance Computing Center Stuttgart put their new Cray XC40 supercomputer “Hornet” to the supreme test on six projects representing computationally demanding scientific fields including planetary research, climatology, environmental chemistry, aerospace and scientific engineering.

The Pawsey Centre’s Cray XC40 Supercomputer “Magnus” Helps Battle Major Cause of Hunger in East Africa

An infestation of the silverleaf whitefly can destroy entire crops — and livelihoods. Using Magnus, a petascale Cray XC40 supercomputer at the Pawsey Supercomputing Centre, a team of researchers is generating phylogenetic trees of whitefly species from around the world.

Allinea DDT Helps Weather and Climate Codes Scale Up for the Cray XC40

While the predictability – or seemingly lack thereof – of weather patterns is a headline-grabbing topic, great strides are being made to increase the fidelity and range of forecasts on both a local level and global scale.

CSCS cracks extreme software challenges with Allinea DDT on Europe’s #1 Supercomputer

Founded in 1991, CSCS is the pride of Switzerland’s supercomputing community. The Centre, based in Lugano, is widely used by Swiss and international researchers and industry.

Improving Gas Turbine Performance with HiPSTAR

Gas turbines (GTs) are the backbone of propulsion- and power-generation systems. Given the very large installed base worldwide, any GT efficiency increase has significant potential to reduce fuel burn and environmental impact.

Berkeley Lab Particle Accelerator Sets World Record with Help from NERSC’s Cray XC Series ‘Edison’ Supercomputer

Using one of the most powerful lasers in the world, researchers have accelerated subatomic particles to the highest energies ever recorded from a compact accelerator.

Research Team Pinpoints the Magnetic Moments of Nuclear Matter for First Time Ever with NERSC’s Cray XC Series ‘Edison’ Supercomputer

A team of nuclear physicists has made a key discovery in its quest to shed light on the structure and behavior of subatomic particles.

NERSC’s Cray XC Series ‘Edison’ Supercomputer Helps Model 3-D Map of Adolescent Universe

Using extremely faint light from galaxies 10.8 billion light years away, scientists have created one of the most complete, three-dimensional maps of a slice of the adolescent universe — just 3 billion years after the Big Bang.

HPC Is Brain Surgery

Cray’s partnership with Allinea Software enables researchers to study blood flow in a specific region of the brain for the first time. 

White Papers and Briefs

Predicting Complex High-Fidelity Aeroelastic Wing Flutter

High-fidelity simulations of the aeroelastic flutter experienced by an airplane in flight put extreme demands on machine performance. A combination of Cray hardware and ANSYS software scaled a 13.47-million-node simulation to more than 1,000 cores.

The Cray XC Series Scalability Advantage

The sheer scale and high global bandwidth of Cray XC systems enable the study of new problems that would not run on other systems, opening the door to discovery.

Cray XC Supercomputer Accelerates LS-DYNA Simulations for Aerospace

The failure of fan or compressor blades in an airplane jet engine is a major hazard. To improve fan blade off containment simulation, a team from Cray and LSTC conducted a study using LS-DYNA and a Cray XC supercomputer.

Removing Bottlenecks to Large-Scale Genetic and Genomic Data Analysis with DISSECT and the Cray XC Supercomputer

Genomic and genetic research have a big data problem. The field is producing ever-increasing amounts of data. But a lack of sufficiently scalable computational tools prevents researchers from analyzing it adequately. The situation leaves the massive opportunities inherent in this data untapped.

The Cray XC Supercomputer Series: Energy-Efficient Computing

Along with the need for scalable and sustained performance comes the need for energy-efficient supercomputing.

ANSYS Fluent Helps Reduce Vehicle Wind Noise

To stay ahead of the competition and meet consumers' ever-increasing expectations for a comfortable ride, automotive OEMs are using ANSYS computational fluid dynamics (CFD) simulation software to tackle the problem of wind noise.

FMI Researchers Run the Vlasiator Code on the Cray XC30 Supercomputer and Get Outstanding Results

Using a Cray XC30 supercomputer featuring Intel Xeon E5 “Haswell” processors and hosted by the Finnish IT Center for Science Ltd., researchers were able to run Vlasiator on an unprecedented 40,000 cores.

Cray and ANSYS Achieve Extreme Scaling Improvements on ANSYS Fluent Using CSCS's Cray XC30 System

ANSYS and Cray worked together to boost the scaling of Tetra Pak’s LES simulation on Fluent.

Cray Helps Optimize De Novo Assembler Application Trinity for Use on Massively Parallel Supercomputers

To fully realize the benefits of the Cray XC system for NGS, Cray is actively collaborating with leading researchers to improve the performance of NGS workflows.

ARCHER Flexes Its Muscles on Code_Saturne

As worldwide demand for energy increases, so do the challenges associated with its production and efficient and safe use.

LS-DYNA Scalability on Cray Supercomputers

For the automotive industry, car crash analysis by finite elements is crucial to shortening the design cycle and reducing costs.

Applications for Cray Systems

PBS Professional for Cray

PBS Professional gives Cray users a more efficient, reliable solution for HPC workload management. Altair collaborates closely with Cray to ensure tight, seamless integration.

Improving the Design of Subsea Riser Systems

With Cray and Altair, engineers have the computational systems they need to perform advanced subsea computational fluid dynamics (CFD) analysis with better speed, scalability and accuracy.

Powering Virtual Wind Tunnel Simulations

Cray and Altair are leaders in providing the powerful, usable technology engineers need to perform external aerodynamics analysis with greater speed and accuracy.

Allinea Development Tools for Cray Supercomputers

Leading corporations and research institutions across the world are using Allinea Software products, which set the standard for capability, performance and ease of use.

Videos, Webinars & Podcasts

Cray XC Series Supercomputers

Cray XC series supercomputers: advancing research, engineering and scientific discovery for all mankind.

Intel Xeon Phi Processor

Cray CTO Steve Scott introduces XC series support

Intel Chip Chat Podcast

Cray CTO Steve Scott joins Chip Chat to discuss the collaboration between Cray and Intel on the Intel Xeon Phi processor for supercomputer integration

Going Parallel

Learn how Cray is adding parallelism to HPC applications in this presentation to the 2016 DOE Programming Workshop by Cray technical lead Heidi Poxon.

Many-Core Programming Enhancements

See how Cray streamlines KNL programming in this 2016 presentation to the Cray User Group by Cray technical lead Heidi Poxon.

Cray DataWarp I/O Acceleration System

DataWarp technology delivers pure performance at near-zero latency through parallel I/O scaling.

Faster Simulations for Automotive and Aerospace

Cray users are getting more accurate engineering simulations and faster design turns with the Cray XC series supercomputer.

A High-Level Programming Environment for Accelerated Computing

Cray discusses supercomputing technology trends, accelerators, and the pros/cons of a variety of programming models.

Webinar: A Cray-Altair Solution: Optimizing High-Fidelity Crash & Safety Simulation Performance

Crash/safety simulation is one of the most widely adopted HPC applications in the automotive industry and a core technology in the vehicle development process.

CAE Simulation in a Petaflop Computing World

Learn how demands for increasingly complex and larger simulations are driving organizations to reassess their use of traditional high performance computing environments.

Top Trends in Crash Simulation Practices

Experts address how manufacturing concerns can best leverage compute increases to improve automotive development practices and improve industrial reliability.

Preparing the Cray XC “Shaheen II” System for Shipment to KAUST

King Abdullah University of Science & Technology (KAUST) in Saudi Arabia selected a Cray system that includes a Cray XC40 supercomputer with DataWarp technology, a Cray Sonexion storage system, Tiered Adaptive Storage (TAS) and Cray’s Urika-GD graph analytics appliance.

An Introduction to OpenACC

OpenACC and CUDA Programming on the Cray XK7 Platform

Edison — Energy-Efficient Computing on NERSC's XC30 Supercomputer

See how Edison, an "incredibly efficient computer system," minimizes the energy required for cooling, enabling maximum computational power. NERSC built a hillside facility specifically for the XC30 system. 

Edison — A New Cray Supercomputer Advances Discovery at NERSC

Several users dicuss how Edison enables their research — which, as one scientist says, would "otherwise be impossible, too expensive or dangerous." 

NVIDIA: Scientists use a Supercomputer to Improve Ice Cream

One of life's simple pleasures is so complicated that it takes a supercomputer to understand it.

Upgrade and Extension of Cray XC30 "Piz Daint" Supercomputer

Watch a Cray team in action as they upgrade nodes and add cabinets to "Piz Daint" at the Swiss National Supercomputing Centre.

OpenACC Basics

"Introduction to OpenACC and CUDA Programming on the Cray XK7 Platform," a course organized by the Swiss National Supercomputing Centre, February 2013.

Using the Cray Programming Environment

Introduction to OpenACC and CUDA Programming on the Cray XK7 Platform

NCSA Blue Waters Construction

Time-lapse video starts with groundbreaking and ends with the Cray supercomputer "Blue Waters" going online at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign. 

Assembling of the Cray XC30 "Piz Daint" at CSCS

Watch a time-lapse transformation as crated cabinets on a semi-truck become the fully operational "Piz Daint" in Switzerland.


Cray Blog - Computing

Commentary and insight from Cray’s top experts and customers

To view a full list of our partners, click here.

Solution Partners

Adaptive Computing

Adaptive Computing provides intelligent automation software for datacenter, cloud and HPC environments. The company’s infrastructure intelligence solutions, powered by Moab®, deliver policy-based governance, allowing customers to consolidate and virtualize resources, allocate and manage applications,... show more optimize service levels and reduce operational costs. Adaptive Computing products manage the world’s largest computing installations and are the preferred intelligent automation solutions for the leading global datacenter vendors.

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Allinea Software

Allinea Software is the trusted leader in software development tools for parallel programming and high performance computing (HPC). Leading users of HPC turn to Allinea for extremely scalable, capable and intuitive tools that improve the efficiency and value of their HPC investment by reducing development time... show more and increasing application performance. Allinea’s integrated suite of profiling and debugging tools is relied on from desktops through to beyond petascale for applications ranging from climate modeling to astrophysics, and from computational finance to engine design.

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Altair Engineering, Inc.

Altair Engineering, Inc., empowers client innovation and decision-making through technology that optimizes the analysis, management and visualization of business and engineering information. Altair is the only company to create HPC solvers and simulation applications, deliver HPC management tools,... show more and use these applications and tools to solve real HPC issues. With a track record for high-end software and consulting services for engineering, computing and enterprise analytics, Altair consistently delivers a competitive advantage to customers in a broad range of industries.

Altair Engineering Solutions >


ANSYS, Inc., founded in 1970, develops and globally markets engineering simulation software and technologies used by engineers and designers across a broad spectrum of industries. ANSYS technologies help product development organizations create innovative products and processes that meet customer... show more and cost requirements and high-quality products and processes that reliably perform as intended, while shortening time-to-market and reducing engineering costs. Simulation delivers these benefits by enabling an information-based product development process, with virtual prototyping to optimize designs at earlier stages of development.

Ansys Solutions >


CD-adapco is the leading global provider of full-spectrum engineering simulation solutions for fluid flow, heat transfer and stress, including CFD software, CAD-embedded CFD, CAE consulting services and training. STAR-CD and STAR-CCM+ provide the world’s... show more most comprehensive CFD solutions. Their integrated CAE process allows engineers to focus more on product design by giving them a single easy-to-use interface to automatically handle complex models through the complete analysis cycle: preprocessing, meshing, solution, post-processing. CD-adapco’s solutions are used across many industries, including automotive, aerospace, appliances, buildings, chemical process, electronics, environmental, marine, offshore structures, pharmaceuticals, power generation, rail, turbomachinery and specialized mechanical engineering applications.

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CEI delivers the world's most advanced visualization technology for large, complex data. CEI was spun out of Cray in 1994. CEI's EnSight family of products provides a comprehensive visualization and post-processing suite to help understand scientific and engineering simulation data. CEI has offices in Detroit,... show more Houston, Raleigh, Munich, and Shanghai, and distributors in other regions around the world.

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Exa Corporation

Exa Corporation offers fluid dynamics simulation software and services that enhance product performance, reduce product development costs and improve the efficiency of design and engineering processes. Exa's simulation solutions help customers gain crucial insights about design performance early in the design cycle,... show more reducing the likelihood of redesigns and late-stage engineering changes. Benefits include significant cost savings and fundamental improvements in engineering development processes. Exa Corporation's products include PowerFLOW®, PowerDELTA®, PowerCLAY®, PowerVIZ®, PowerSPECTRUM®, PowerACOUSTICS®, PowerINSIGHT®, PowerCOOL® and PowerTHERM® along with professional engineering consulting services.

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Intel, the world leader in silicon innovation, develops technologies, products, and initiatives to continually advance how people work and live. Founded in 1968 to build semiconductor memory products, Intel introduced the world's first microprocessor in 1971. The company designs and builds the... show more essential technologies that serve as the foundation for the world's computing devices. Intel’s mission is to create and extend computing technology to connect and enrich the lives of every person on earth.

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Livermore Software Technology Corporation (LSTC)

Livermore Software Technology Corporation develops LS-DYNA® and related engineering software products. LS-DYNA is a general-purpose transient dynamic finite element program that simulates complex real-world problems. It includes a Pre/Post Processor, LS-PrePost®, and a tightly integrated optimization code,... show more LS-OPT®. LS-DYNA, LS-PrePost and LS-OPT are used in various industries, including automobile design, aerospace, manufacturing and bioengineering. LS-DYNA development is focused on one code methodology that includes implicit, explicit, SMP and MPP solvers. It is optimized on all platforms including clusters running Unix, Linux and Windows.

Livermore Software Technology Corporation Solutions >


MathWorks is the leading developer of mathematical computing software. MATLAB, the language of technical computing, is a programming environment for algorithm development, data analysis, visualization and numeric computation. Simulink is a graphical environment for simulation... show more and model-based design of multidomain dynamic and embedded systems. Engineers and scientists worldwide rely on these product families in the automotive, aerospace, electronics, financial services, biotech-pharmaceutical and other industries. MathWorks products are also used in universities and learning institutions worldwide.

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Metacomp Technologies, Inc.

Metacomp Technologies is at the forefront of technology in computational fluid dynamics, computational aero-acoustics, structural analysis and mesh generation. Metacomp is provides  software tools for aerospace, defense and automobile manufacturers, U.S. government... show more labs and research organizations, as well as other companies that require complex modeling during research and development. Its activities include R&D, software development, dissemination and support in the areas of fluid dynamics, structural analysis, numerical algorithms, turbulence and combustion modeling, acoustics, geometry modeling and mesh generation.

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Numerical Algorithms Group

The Numerical Algorithms Group (NAG) delivers high-quality computational software and high performance computing services. For 40 years NAG experts have worked closely with world-leading researchers in academia and industry to create powerful, reliable and flexible... show more software that is relied on by tens of thousands of individual users, as well as numerous independent software vendors. NAG serves its customers from offices in Oxford (U.K.), Chicago, Tokyo and Taipei, through staff in France and Germany, and via a global network of distributors.

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Cray and NVIDIA are working together to create innovative accelerated supercomputer solutions with best-of-breed performance, scalability and reliability. These solutions feature NVIDIA® Tesla® GPUs, which accelerate the most demanding HPC and deep learning datacenter workloads.... show more Engineered to maximize compute performance, Cray’s XC50™supercomputer supports the Tesla P100 PCIe GPU accelerator, delivering the highest absolute performance for HPC and deep learning workloads.

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Platform Computing

Platform Computing is a pioneer and the global leader in high performance computing (HPC) management software. The company delivers integrated software solutions that enable organizations to improve time-to-results and reduce computing costs.... show more Many of the world’s largest companies rely on Platform to accelerate compute- or data-intensive applications and manage cluster and grid systems. Platform has over 2,000 global customers and strategic relationships along with the industry’s broadest support for HPC applications.

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The Portland Group

The Portland Group develops and markets high performance Fortran, C and C++ compilers and tools. Offering world-class performance and comprehensive cross-platform support and optimization, PGI supports 32-bit x86, 64-bit AMD64 and Intel 64 processor-based... show more systems running over 30 popular Linux and Mac OS X and Windows releases. Advantages include fast compilation speed, integrated graphical parallel debugger and profiler, comprehensive documentation, online tutorials and outstanding technical support.

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Rogue Wave Software

Rogue Wave is the largest independent provider of cross-platform, embeddable libraries and development tools for HPC application design, testing and deployment. Rogue Wave’s tools and components empower software developers to take advantage of the performance... show more and scalability that multicore and parallel technologies offer, and are proven by decades of use solving some of the world’s most complex problems in commercial enterprise, academia, defense and institutional research.

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Scientific Computing & Modelling N.V. (SCM)

Originating from the Theoretical Chemistry group at the VU University in Amsterdam, Scientific Computing & Modelling N.V. (SCM) provides worldwide customers in academia, government and industry with its molecular and periodic density functional theory codes ADF and BAND.... show more  The software provides accurate calculations on difficult chemical problems, specifically for spectroscopic properties and heavy elements. The scope of SCM's modeling software is expanding to treat larger systems for longer time scales with faster, approximate quantum-based as well as (reactive) force field methods.

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SIMULIA provides a scalable portfolio of simulation solutions and an open platform to support integration of multidisciplinary analysis with its partners. Simulation enables engineers and scientists to improve product performance, eliminate physical prototypes and drive innovation. The product suite includes... show more the Abaqus/CAE® modeling, visualization and automation environment for ABAQUS analyses; Abaqus/Standard® for static, dynamic, thermal and coupled analysis with implicit FEA; Abaqus/Explicit® for transient dynamic and quasi-static analysis with explicit FEA; and Abaqus for CATIA V5® for advanced nonlinear analysis within CATIA V5.

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Software Cradle Co., Ltd.

Established in 1984 and headquartered in Osaka, Japan, Software Cradle Co., Ltd., develops and markets innovative computational fluid dynamics software for a broad range of customers. Software Cradle Co. provides customers with leading-edge technology that can open new frontiers in the design of their products.

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Tech-X Corporation

Tech-X was founded in 1994 to develop products and services for leveraging high performance computing in computational physics. Since then, Tech-X has provided services to a broad range of national and international customers from government, academia and industry.... show more Tech-X Corporation is committed to technical excellence and innovation. Its core competencies include the simulation of processes, devices and physical systems related to plasma physics, fusion and accelerator technologies, performed on computer systems ranging from desktops to leadership computing facilities.

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Arista Networks

Arista Networks was founded to deliver software-driven cloud networking solutions for large data center and computing environments. Arista’s award-winning 10/40/100 GbE switches redefine scalability, robustness, and price-performance, with over 2,700 customers and more than two million cloud networking... show more ports deployed worldwide. At the core of Arista’s platform is EOS, an advanced network operating system. Arista Networks products are available worldwide through distribution partners, systems integrators and resellers.

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Brocade networking solutions help the world's leading organizations transition smoothly to a world where applications and information reside anywhere.

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Chelsio Communications

Chelsio Communications is leading the convergence of networking, storage and clustering interconnects and I/O virtualization with its robust, high-performance and proven Unified Wire technology. Featuring a highly scalable and programmable architecture, Chelsio is shipping 10-GbE and 40-GbE Ethernet... show more and multi-port Gigabit Ethernet adapter cards, delivering the low latency and superior throughput required for high-performance computing applications.

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Cisco is the worldwide leader in IT that helps companies seize the opportunities of tomorrow by proving that amazing things can happen when you connect the previously unconnected.

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Mellanox Technologies

Mellanox Technologies is a leading supplier of end-to-end InfiniBand and Ethernet interconnect solutions and services for servers and storage. Mellanox interconnect solutions increase data center efficiency by providing the highest throughput and lowest latency, delivering data faster to applications... show more and unlocking system performance capability. Mellanox offers a choice of fast interconnect products: adapters, switches, software, cables and silicon that accelerate application runtime and maximize business results for a wide range of markets including high-performance computing, enterprise data centers, Web 2.0, cloud, storage and financial services.

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Founded in 1994 as a Caltech spin-off, Myricom is the technology leader in extreme-performance 10-Gigabit Ethernet (10GbE) solutions specialized for vertical markets. Myricom first pioneered High Performance Computing (HPC) interconnect technology that helped... show more fuel the growth of cluster computing. Now, with its fourth generation of networking products, Myri-10G, Myricom has achieved convergence between mainstream 10-Gigabit Ethernet and HPC technology, 10-Gigabit Ethernet with a supercomputing heritage. The majority of Myricom’s sales today are for 10-Gigabit Ethernet applications with demanding latency or throughput requirements. Myri-10G delivers wire-speed UDP and TCP throughput, with optional firmware-accelerated offloads for financial trading, packet capture and injection, video streaming and IPTV, HPC, and for other performance-sensitive vertical markets.

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SMC Networks

SMC Networks is a global provider of Customer Premises Equipment (CPE) to Service Providers. SMC specializes in designing, engineering, and delivering the most innovative wireless and wired products to enable cable, telecommunication and multi-service operators around the world to connect their customers to a completely integrated digital home.

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Solarflare is the leading provider of application-intelligent networking I/O software and hardware that accelerate, monitor and secure network data. With over 1,000 customers worldwide, the company's solutions are widely used in scale-out server environments... show more such as electronic trading, high performance computing, cloud, virtualization and big data. Solarflare's products are available from leading distributors and value-added resellers, as well as from Dell, HP and IBM. Solarflare is headquartered in Irvine, California, and operates R&D facilities in Cambridge, UK and New Delhi, India.

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