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Cray-1 Scaling
The Cray-1 was a supercomputer designed, manufactured and marketed by Cray Research. Announced in 1975, the first Cray-1 system was installed at Los Alamos National Laboratory in 1976. Eventually, over 100 Cray-1s were sold, making it one of the most successful supercomputers in history. It is perhaps best known for its unique shape, a relatively small C-shaped cabinet with a ring of benches around the outside covering the power supplies and the cooling system. The Cray-1 was the first supercomputer to successfully implement the vector processor design. These systems improve the performance of math operations by arranging memory and processor register, registers to quickly perform a single operation on a large set of data. Previous systems like the CDC STAR-100 and TI Advanced Scientific Computer, ASC had implemented these concepts but did so in a way that seriously limited their performance. The Cray-1 addressed these problems and produced a machine that ran several times faster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cray Research
Cray Inc., a subsidiary of Hewlett Packard Enterprise, is an American supercomputer manufacturer headquartered in Seattle, Washington. It also manufactures systems for data storage and analytics. Several Cray supercomputer systems are listed in the TOP500, which ranks the most powerful supercomputers in the world. Cray manufactures its products in part in Chippewa Falls, Wisconsin, where its founder, Seymour Cray, was born and raised. The company also has offices in Bloomington, Minnesota (which have been converted to Hewlett Packard Enterprise offices), and numerous other sales, service, engineering, and R&D locations around the world. The company's predecessor, Cray Research, Inc. (CRI), was founded in 1972 by computer designer Seymour Cray. Seymour Cray later formed Cray Computer Corporation (CCC) in 1989, which went bankrupt in 1995. Cray Research was acquired by Silicon Graphics (SGI) in 1996. Cray Inc. was formed in 2000 when Tera Computer Company purchased the Cray Res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Control Data Corporation
Control Data Corporation (CDC) was a mainframe and supercomputer firm. CDC was one of the nine major United States computer companies through most of the 1960s; the others were IBM, Burroughs Corporation, DEC, NCR, General Electric, Honeywell, RCA, and UNIVAC. CDC was well-known and highly regarded throughout the industry at the time. For most of the 1960s, Seymour Cray worked at CDC and developed a series of machines that were the fastest computers in the world by far, until Cray left the company to found Cray Research (CRI) in the 1970s. After several years of losses in the early 1980s, in 1988 CDC started to leave the computer manufacturing business and sell the related parts of the company, a process that was completed in 1992 with the creation of Control Data Systems, Inc. The remaining businesses of CDC currently operate as Ceridian. Background and origins: World War II–1957 During World War II the U.S. Navy had built up a classified team of engineers to build codeb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Security Agency
The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes, specializing in a discipline known as signals intelligence (SIGINT). The NSA is also tasked with the protection of U.S. communications networks and information systems. The NSA relies on a variety of measures to accomplish its mission, the majority of which are clandestine. The existence of the NSA was not revealed until 1975. The NSA has roughly 32,000 employees. Originating as a unit to decipher coded communications in World War II, it was officially formed as the NSA by President Harry S. Truman in 1952. Between then and the end of the Cold War, it became the largest of the U.S. intelligence organizations in terms of pers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William J
William is a male given name of Germanic origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of England in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will, Wills, Willy, Willie, Bill, and Billy. A common Irish form is Liam. Scottish diminutives include Wull, Willie or Wullie (as in Oor Wullie or the play ''Douglas''). Female forms are Willa, Willemina, Wilma and Wilhelmina. Etymology William is related to the given name ''Wilhelm'' (cf. Proto-Germanic ᚹᛁᛚᛃᚨᚺᛖᛚᛗᚨᛉ, ''*Wiljahelmaz'' > German ''Wilhelm'' and Old Norse ᚢᛁᛚᛋᛅᚼᛅᛚᛘᛅᛋ, ''Vilhjálmr''). By regular sound changes, the native, inherited English form of the name shoul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Atmospheric Research
The US National Center for Atmospheric Research (NCAR ) is a US federally funded research and development center (FFRDC) managed by the nonprofit University Corporation for Atmospheric Research (UCAR) and funded by the National Science Foundation (NSF). NCAR has multiple facilities, including the I. M. Pei-designed Mesa Laboratory headquarters in Boulder, Colorado. Studies include meteorology, climate science, atmospheric chemistry, solar-terrestrial interactions, environmental and societal impacts. Tools and technologies NCAR was instrumental in developing lidar, light radar, now a key archaeological tool, as well as providing a broad array of tools and technologies to the scientific community for studying Earth’s atmosphere, including, * Specialized instruments to measure atmospheric processes * Research aircraft * High-performance computing and cyberinfrastructure, including supercomputers * Mauna Loa Solar Observatory * Cooperative field campaigns * Atmospheric models o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory (LLNL) is a federal research facility in Livermore, California, United States. The lab was originally established as the University of California Radiation Laboratory, Livermore Branch in 1952 in response to the detonation of the first atomic bomb by the Soviet Union during the Cold War. It later became autonomous in 1971 and was designated a national laboratory in 1981. A federally funded research and development center, Lawrence Livermore Lab is primarily funded by the U.S. Department of Energy and it is managed privately and operated by Lawrence Livermore National Security, LLC (a partnership of the University of California), Bechtel, BWX Technologies, AECOM, and Battelle Memorial Institute in affiliation with the Texas A&M University System. In 2012, the laboratory had the synthetic chemical element livermorium (element 116) named after it. Overview LLNL is self-described as a "premier research and development institution for sci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Street
Wall Street is an eight-block-long street in the Financial District of Lower Manhattan in New York City. It runs between Broadway in the west to South Street and the East River in the east. The term "Wall Street" has become a metonym for the financial markets of the United States as a whole, the American financial services industry, New York–based financial interests, or the Financial District itself. Anchored by Wall Street, New York has been described as the world's principal financial center. Wall Street was originally known in Dutch as "de Waalstraat" when it was part of New Amsterdam in the 17th century, though the origins of the name vary. An actual wall existed on the street from 1685 to 1699. During the 17th century, Wall Street was a slave trading marketplace and a securities trading site, and from the early eighteenth century (1703) the location of Federal Hall, New York's first city hall. In the early 19th century, both residences and businesses occupied the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chippewa Falls, Wisconsin
Chippewa Falls is a city located on the Chippewa River in Chippewa County in the northwestern part of the U.S. state of Wisconsin. The population was 14,778 in the 2021 census. Incorporated as a city in 1869, it is the county seat of Chippewa County. The city's name originated from its location on the Chippewa River, which is named after the Ojibwe Native Americans. ''Chippewa'' is an alternative rendition of ''Ojibwe.'' Chippewa Falls is the birthplace of Seymour Cray, known as the "father of supercomputing", and the headquarters for the original Cray Research. It is also the home of the Jacob Leinenkugel Brewing Company, the Heyde Center for the Arts, a showcase venue for artists and performers; Irvine Park, and the annual Northern Wisconsin State Fair. Chippewa Falls is from the annual four-day music festivals Country Fest and Rock Fest. History For thousands of years the Chippewa River was a water highway through a wilderness of forests and swamps, travelled by Ojibwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Norris (CEO)
William Charles Norris (July 14, 1911 near Red Cloud, Nebraska – August 21, 2006) was an American business executive. He was the CEO of Control Data Corporation, at one time one of the most powerful and respected computer companies in the world. He is famous for taking on IBM in a head-on fight and winning, as well as being a social activist who used Control Data's expansion in the late 1960s to bring jobs and training to inner cities and disadvantaged communities. Early life Norris was born and raised on a cattle farm in Nebraska, attending a tiny school in Inavale, Nebraska and operating a ham radio. He attained a degree in electrical engineering from the University of Nebraska in 1932. He spent two years on his family's farm after graduation, helping weather the Great Depression and a significant drought in the Midwest by risking the use of Russian thistle as cattle feed. Military career Norris served in the United States Navy as a codebreaker, attaining the rank of lieu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SIMD
Single instruction, multiple data (SIMD) is a type of parallel processing in Flynn's taxonomy. SIMD can be internal (part of the hardware design) and it can be directly accessible through an instruction set architecture (ISA), but it should not be confused with an ISA. SIMD describes computers with multiple processing elements that perform the same operation on multiple data points simultaneously. Such machines exploit data level parallelism, but not concurrency: there are simultaneous (parallel) computations, but each unit performs the exact same instruction at any given moment (just with different data). SIMD is particularly applicable to common tasks such as adjusting the contrast in a digital image or adjusting the volume of digital audio. Most modern CPU designs include SIMD instructions to improve the performance of multimedia use. SIMD has three different subcategories in Flynn's 1972 Taxonomy, one of which is SIMT. SIMT should not be confused with software thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockstep (computing)
Lockstep systems are fault-tolerant computer systems that run the same set of operations at the same time in parallel. The redundancy (duplication) allows error detection and error correction: the output from lockstep operations can be compared to determine if there has been a fault if there are at least two systems (dual modular redundancy), and the error can be automatically corrected if there are at least three systems (triple modular redundancy), via majority vote. The term "lockstep" originates from army usage, where it refers to synchronized walking, in which marchers walk as closely together as physically practical. To run in lockstep, each system is set up to progress from one well-defined state to the next well-defined state. When a new set of inputs reaches the system, it processes them, generates new outputs and updates its state. This set of changes (new inputs, new outputs, new state) is considered to define that step, and must be treated as an atomic transaction; in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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