Cray Machine Families

Cray Research systems install base in the ’90s

This chart shows the approximate installed base of active Cray Research systems during the 1990s. The  data that shows the XMP (red) being phased out in favour of the YMP (green) and the rise of the smaller J90 and EL systems (orange and yellow) in the later 1990s. The peek system install base in 1996 being […]

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Cray Customer Service – Memories (1979 to 2014) by Charles Clark

Cray Customer Service – Memories (1979 to 2014) a personal memoir by Charles “Charlie” Clark I have seen lots of articles on Cray Supercomputers, their design. development, uses and installations, but I haven’t seen too much documented on the WEB about the Cray Engineers and Analysts who supported these systems in the field so I

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T90 & C90 mini movies and T3D videos

This collection of movies was distributed on a sales related CD and demonstrated some of the tasks that T90s and other Cray supercomputer systems performed. These are in Quicktime.mov format and are of low resolution which was normal for the time. Enjoy.   Mini movie Bucket or T90 and C90 Mini movies  Note: You may

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Links to Videos of Interest

A few links to videos of interest to Cray-History visitors. Most of these are created by the Computer History Museum. What’s All This About Gallium Arsenide?, lecture by Seymour Cray at Super computing 1988 includes industry history. The CRAY T3D Massively Parallel Processing System, lecture by Stephen Nelson and Steven Oberlin Cray Research – A

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EL and C90 Poster Centerfolds

These two posters appeared side by side in Cray Channels V13_N4 as centre folds. Also distributed as wall posters. These two machines, at the opposite ends of the Cray performance spectrum, nevertheless less ran the same UNICOS operating systems and compiler environments. The EL often appeared at larger Cray sites acting as a software development

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Serial Number 1

The first of a kind always holds special interest for historians and serial number one, the first Cray-1 computer system is no exception. Made in 1976 this machine, really just the prototype but proved it’s worth at 6 sites paving the way for early sales of Cray Research Supercomputers. Serial Number 1 World Traveller From Cray

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About The Chippewa Falls museum of Industry and Technology with Serial Number 1 and Serial Number 101 and SN1001 and SN2001

The Chippewa Falls museum of Industry and Technology is of particular interest to followers of supercomputing technology. The museum located in home town of supercomputer maker Cray Research and holds the assets of the original Cray Corporate Computer museum. Included in the collection is Serial Number 1, the first Cray-1 supercomputer and Serial Number 101

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The Supermen by Charles J. Murray

A great book about the early days ( up to 1995 ) Link on Amazon. “The Story of Seymour Cray and the Technical wizards behind the supercomputer” The Supermen Book cover Cover Blerb After a rare speech at the National Center for Atmospheric Research in Boulder, Colorado, in 1976, programmers in the audience had suddenly

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Cray System Installation photos

Getting a new machine is always an exciting moment for customers. The installation engineer’s often spend many hours testing and configuring the systems ready for customer acceptance. Your install picture are solicited for this entry. Email over to the contact address. Install Timelapse YouTubes: Installing Jaguar, update to Kraken  Time lapse Upgrading Kraken processors Upgrading Jaguar

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High Performance Computing Workshop “Performance Programming on the Cray YMP-EL” 

High Performance Computing Workshop Performance Programming on the Cray YMPEL by Dr. Andrew J. Pounds High Performance Computing Group Georgia Institutute of Technology. Click link for .pdf High performance programmining on the Cray EL Vector_OCR  A great introduction into how to make your programs run fast on a Cray EL.  

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Cray and Other Timeline documents

The history of Cray branded computers is long and has a few twists along the way. Beginning as a classic start-up in 1976 and building to a multi-million dollar company Cray Research Inc went through cycles of boom, innovation, not-quite-bust, buyout (three times), occasional refocus and of course a split with the founder. A few

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Cray YMP-EL boot up sequence and annotated configuration files

  Cray EL boot sequence for sn5411 This document shows the boot sequence, as seen from the system console of a 2 IOS, 8 CPU Cray EL followed by the IOS and system configuration files. The later of which is passed to Unicos during the boot. User input in bold. HK68/V30 ver 01.04 -Power Up

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Cray YMP-EL an overview article.

An Article written for the Resurrection the Computer Conservation Society newsletter and published here … ” At the end of a virtual tour of The National Museum of Computing, I saw an old friend. Standing quietly by the very impressive Cray-1 from the Royal Aircraft Establishment was a grey and red cabinet about 5 feet tall

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About the Mimms Museum of Technology and Art ( previously Computer Museum of America CMoA )

A .pdf about the Computer museum of America in Roswell, North of Atlanta GA. Hosts a substantial collection of Cray and other systems. This is a great place to see a range of different computers that Cray Research delivered to customers. Also houses a range of computer artefacts and interpretation displays. Bring the kids, bring

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