Top Sites

The top ranked sites in each category. Many listings in Top Sites by Category are for specific pages or subdirectories, not for entire sites. For example, in the Reference > Maps section you'll find mapquest.com (an entire site about maps) and maps.yahoo.com (one section about maps on a larger site).

For this reason, the listings in the Top Sites by Category are ordered by Popularity of this listing, and not by the overall Traffic Rank of the site. We use the same basic traffic ranking technology used for Alexa Traffic Rank — a combination of users and page views — but apply it only to the traffic for that specific listing. To find out the Traffic Rank of any site in the Top Sites by Category directory, just click the name of the site and you'll be taken to the "Site Info" page for that site.

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Top Sites in:



  • 1

    Silicon Graphics

    sgi.com
    Customers can choose how they wish to explore SGI's support services: by what is available in t... Moreheir geographic region; by what is offered for a specific system; or by reviewing all the support service offerings currently available.

  • 2

    The National Center for Supercomputing

    ncsa.illinois.edu
    Information about supercomputing applications and research in the United States.

  • 3

    Top 500 Supercomputers

    top500.org
    Ranking of supercomputers according to the LINPACK benchmark. Links to news articles.

  • 4

    HPCwire

    hpcwire.com
    News portal covering the high performance computing industry. Includes whitepapers, blogs, conf... Moreerence listings and job search.
    From the site: With the use of cluster computer technology, a method of linking multiple computers through high-speed networks to form a single and more powerful system, Linux NetworX provides solutions for companies with high-computing needs, including ISPs, ASPs, research, industry, government and other technological fields. To date, the company has built some of the largest cluster systems in the world and has developed unique hardware and versatile software to facilitate overall system management. ...

  • 5

    Cray Inc.

    cray.com
    Official site for the supercomputers company. Includes details of products, job opportunities, ... Moreand investor information.

  • 6

    Texas Advanced Computing Center

    tacc.utexas.edu
    Provides computing resources to enhance research development capabilities.

  • 7

    Advanced Biomedical Computing Center

    abcc.ncifcrf.gov
    Facility provides computing support and technology to the scientists of the National Cancer Ins... Moretitute (NCI), National Institutes of Health (NIH), and extramural biomedical researchers.

  • 8

    Supercomputing Online

    supercomputingonline.com
    Includes news, analysis, and discussion about supercomputing.

  • 9

    Epoka Group

    epoka.com
    Reseller of used high performance computers from a variety of manufacturers.... More
    From the site: Epoka Group A/S is the world's leading supplier of pre-owned, high-performance enterprise computer solutions. Our extensive range of blue-chip brands extends from mainframes, NAS and SAN solutions to best-of-breed networking equipment. Epoka is a reliable, triple-A rated company that offers customers around the world quick access to quality solutions at competitive prices. ...

  • 10

    International Supercomputer Conference

    supercomp.de
    International Supercomputer Conference. Heidelberg, Germany.

  • 11

    Cray User Group

    cug.org
    An independent, international consortium of organizations that own or use Cray or SGI computer ... Moresystems. Includes membership details, announcements, conference details, and working group information.

  • 12

    TeraGrid.org

    teragrid.org
    National Science Foundation's effort to build and deploy the world's largest distributed infras... Moretructure for open scientific research. Information about partners and funding.
    From the site: TeraGrid is an open scientific discovery infrastructure combining leadership class resources at eleven partner sites to create an integrated, persistent computational resource. Using high-performance network connections, the TeraGrid integrates high-performance computers, data resources and tools, and high-end experimental facilities around the country. ...

  • 13

    HPTC Solutions

    h20311.www2.hp.com/HPC/cache/274276-0-0-0-121.html
    Hewlett Packard's high performance computing division. Product information and support for PA-R... MoreISC, Alpha, and Pentium-based systems.

  • 14

    Linux Labs

    linuxlabs.com
    Integrator of second generation open source Linux-based clusters.... More
    From the site: Or you can email us: info@linuxlabs.com sales@linuxlabs.com support@linuxlabs.com investments@linuxlabs.com Linux Labs International Inc. was founded in 2000 and has been building superior HPC cluster solutions utilizing their NimbusOS since that time. Key members of the Linux Labs Management Team have been working with Linux and it's components since 1994. Linux Labs maintains their corporate headquarters in the United States in Atlanta, GA. ...

  • 15

    The Cray-Cyber Project

    cray-cyber.org
    Operation of historical supercomputers and putting them online for free interactive use. A Cray... More Y-MP EL is online 24x7. Most of the machines are only running on Saturday because of the needed power.

  • 16

    Scandal Supercomputing Project

    cs.cmu.edu/~scandal/
    Development of a portable environment for programming supercomputers. Project information and r... Moreesources about parallel programming.

  • 17

    National Partnership for Advanced Computational Infrastructure

    npaci.edu
    Organization created to develop a national supercomputing infrastructure. Links to resources, c... Moreurrent research projects, and outreach programs.
    From the site: Infrastructure (NPACI) is to advance science by creating a ubiquitous, continuous, ...NPACI continues to advance science by providing a powerful...NPACI fosters scientific discovery by creating integrated, easy-to-use computational environments...

  • 18

    SRC Computers, Inc.

    srccomp.com
    SRC sells scalable and reconfigurable supercomputers.... More
    From the site: Thank you for your interest in SRC Computers. Please take a few moments to fill out the form below, and an SRC representative will be in contact with you as soon as possible. ... To opt out of receiving any future communications from SRC, check this box. *Required

  • 19

    A Seymour Cray Perspective

    research.microsoft.com/users/gbell/craytalk/
    Slides from a technical presentation given by Gordon Bell of Microsoft Research.

  • 20

    The Journal of Supercomputing

    springerlink.com/content/1573-0484/
    Available in print and online. Searchable archives available to subscribers.

  • 21

    In Honor of Seymour Cray

    cgl.ucsf.edu/home/tef/cray/
    A tribute and obituary for the late Seymour Cray.

  • 22

    Advanced Simulation and Computing

    sandia.gov/NNSA/ASC/
    A United States government initiative to develop simulation capabilities suitable for weapons t... Moreesting. Program details and links to university partners.

  • 23

    ICC at Lawrence Livermore National Lab

    https://computation.llnl.gov/icc/
    Offers current scientific and networking research information.

  • 24

    Cray Memorial

    lornet.com/cray.htm
    Tribute to Seymour Cray with many comments from visitors.

  • 25

    CRAY-1 Hardware Reference Manual

    ed-thelen.org/comp-hist/CRAY-1-HardRefMan/CRAY-1-HRM.html
    The first 3 chapters of the CRAY RESEARCH CRAY-1 Hardware Reference Manual 2240004, Revision C.

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