Cray Stories During the 25 years that I worked for Cray I was fortunate enough to meet many interesting people and hear many stories and urban legends about Seymour Cray, the company as well as interesting events that happened in the field. In some cases I even got to hear the story behind the story. […]
Jim Masocco recalls Seymour Cray Stories – With Interview Read More »
From Computer weekly Full write up here … that describes following the track of the neutrinos by lining up the single bit failures. First Record of Single Event Upset on the Ground Cray-1 Computer Memory at Los Alamos in 1976 Abstract Records of bit flips in the Cray-1 computer installed at Los Alamos in 1976
Influence from the stars on supercomputer memories first discovered in Cray-1 SN1. Read More »
Cray supercomputers have shown up in popular culture, sometimes mentioning a specific machine type other times just using “Cray Computer” in a generic sense. Listed here are some references to Cray systems in popular culture. Let us know if you know more. Books Jurassic park – Mentioned in the Michael Critchton book but a Connection
“Cray systems” in popular culture Read More »
Over here at Cray-history.net we pleased to see the release of this work by Cray Colleague David Barkai. It’s a great read and I certainly filled in a few gaps in my understanding of HPC history. David adds: “I have spent the last few years writing a book about HPC. It is now done and
Unmatched : 50 years of Supercomputing by David Barkai Read More »
Charlie Clark came across this very clear and detailed write up of Cray Corporate history over on Encylopidia.com Cray Inc. is one of the world’s premier producers of super-computers, a term rather loosely used to denote the fastest computers at any give time. The company’s high-performance supercomputers, which are capable of performing billions of
Excellent write up on Cray Corporate history Read More »
Fifty years of Cray supercomputers was celebrated with a virtual tour hosted by TNMOC in UK on 6th April 2022 This virtual talk explored the physical and logical structure of Cray-1 SN34, peaking ‘under the covers’ of this remarkable machine. The talk also illuminates how these machines evolved and sample some of what was achieved
Fifty years of Cray supercomputers in 2022 Read More »
Discovered this very interesting read published in 1991 by Arthur Trew and Greg Wilson at EPCC. Full Index pages and sample sections over on Google Books here. Or just the header information and index in this document ppp_bookpdf Link to the publishers page for the book where samples and a full .PDF download version is
Past, Present, Parallel : A survey of Available Parallel computing systems Read More »
The end of the ’90s was tough few years for supercomputers. These articles describe the spat that broke out between Cray and NEC a Japanese firms that was accused of selling supercomputers at less than cost price. After the spat was settled Cray entered an agreement to resell NEC supers SX-5 & SX-6 into the
Supercomputers going cheep ( too cheep ? ) 1997 Read More »
Also seen at – http://ed-thelen.org/comp-hist/super-users-view.html A History of Supercomputing at Florida State University Jeff Bauer (Written in early 1991) As the result of an unsolicited proposal by the Florida State University (FSU) to the U. S. Department of Energy (DOE), a collaborative agreement was initiated in late 1984 between the State of Florida, FSU, DOE
Florida State University replace ETA-10 with Cray YMP from 1991 by Jeff Bauer Read More »
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 »
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 »
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 used 64 bit Cray floating point arithmetic. When representing the long smooth curve of real numbers using digital bits
Cray Floating point numbers Read More »
