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 »
Old Site link Living Computer Museum was at : 2245 First Ave South Seattle, WA 98134 Tel: +1 206-342-2020 The museum and lab are now closed and the collection dispersed. Cray-1 Believed to be SN12 previously at the Minnesota supercomputer centre. Cray-2 Believed to be SN2021 previously installed at Minnesota supercomputer centre owned
About the Living Computers Museum – Photos 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 »
Lots of folks have a few treasures tucked away from our days working with or for Cray. This and the Cray mug shot page are the places where such pictures will be posted 🙂 Send us your photos to be posted here. See the catalogs at the end of the post. Some mousemats ( remember
Memorabilia Catalogs and Collections Read More »
The National Centre for Atmospheric Research NCAR/UCAR in Colorado has a long association with Cray supercomputers. Starting in 1977 with the Cray-1 SN3 the site invested in some the best supercomputers available. More recently a Cray Petaflop class machines will be used to explore climate research. In 2024 the site has commissioned Derecho a 19
NCAR / UCAR a research site with a long association with Cray supercomputers. 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 »
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 »
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 »
