This cautionary tale of how a USD10 million Cray machine was built but never delivered due to regulatory delay. Turns out it was not super-computers but more likely to be a rogue scientist that let the nuke secrets out the flask. From Wikipedia: “In 2004, the Pakistani metallurgist Abdul Qadeer Khan, a key figure in
Delayed delivery obsoleted a Cray XMP-EA SN1205 before delivery. Read More »
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
Cray Research systems install base in the ’90s Read More »
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
Cray Customer Service – Memories (1979 to 2014) by Charles Clark Read More »
Encyclopaedia of Parallel Computing David Padua – University of Illinois at Urbana-Champaign Urbana USA DOIhttps://doi.org/10.1007/978-0-387-09766-4 Copyright Information Springer Science+Business Media, LLC2011 Publisher Name Springer, Boston, MA Print ISBN 978-0-387-09844-9 Number Of Entries 796 This most excellent reference book is highly recommend to gain insight into the many aspects of parallel and high performance computing. Available in print
Encyclopedia of Parallel Computing (index) Read More »
This interesting book of conference proceedings can be read online here: https://publishing.cdlib.org/ucpressebooks/view?docId=ft0f59n73z;brand=ucpress Set in ’93 being 10 years after the first Frontiers conference the talks capture the key topics during the early stages of the massively parallel processing era. Articles by Les Davis and Bo Ewald and others. Frontiers of Supercomputing II A National Reassessment
Frontiers of Supercomputing II Read More »
Static can kill delicate electronics. From Cray Channels CC_V4_N4 “Cray Research’s new system test equipment focuses on quality.” The company’s newly-established in house system test facility includes a JEOL Scanning Electron Microscope (SEM) and a Tracor Northern Xray spectrum analyzer. The SEM and X-ray spectrum analyzer units together offer an extremely wide magnification range (10 to 180,000 times
Static can kill delicate electronics Read More »
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
T90 & C90 mini movies and T3D videos Read More »
The representation of floating point numbers and the “accuracy”, repeatability and reversibility of arithmetic operations has long be a topic of discussion amongst Cray customer and scientific users. The Cray machines up to the C90 range all used 64 bit Cray floating point arithmetic. When representing the long smooth curve of real numbers using digital
Cray Floating point numbers Read More »
When you pay a few million $£€ for a supercomputer you expect great service. Here are a couple of service snapshots: An article about the introduction of the on-site module tester for XMP boards. From Volume 6 No 1 – Jan/Feb 1986 of Cray Interface The on site testing and repair procedures are described
Cray System Service snapshots 1989 and 1996 with remote support information. Read More »
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
Links to Videos of Interest Read More »
The site has a couple of collections of public press releases available here. The first set covers 1993 to 1996 and the second set from March 2002 to Feb 2008. Lets us know if you can fill in the gaps. All documents were obtained from publicly available sources. 1993 to 1996 List CEA_ORDER.950424.txt
Cray Research Press release listing Read More »
