In an SN system, processors, memory, and a bus-and memory-controller are coupled together into an entity called a node, usually on a single circuit board.

Thanks to the cache coherence of the distributed shared memory, SN systems scale along several axes at once: as CPU count increases, so does memory capacity, I / O capacity, and system bisection bandwidth.

This makes an SN system far easier to program and able to achieve higher sustained-to-peak performance than non-cache-coherent systems like conventional clusters or massively parallel computers which require applications code to be written ( or re-written ) to do explicit message-passing communication between their nodes.

The first SN system, known as SN-0, was released in 1996 under the product name Origin 2000.

In November 2002, SGI announced a repackaging of its SN system, under the name Origin 3900.

A shared nothing architecture ( SN ) is a distributed computing architecture in which each node is independent and self-sufficient, and there is no single point of contention across the system.

As Google has demonstrated, a pure SN system can scale almost infinitely simply by adding nodes in the form of inexpensive computers, since there is no single bottleneck to slow the system down.

Such points occur wherever an information system that is outside the SN architecture queries information from disparate nodes within the SN architecture for a single purpose.

# persons ( minds ) who look at two SN nodes and decide that they hold or process data about the same thing ( simply recognising that two nodes belong to the same SN system would be sufficient )

# any software / hardware system that is written to query different nodes within the SN architecture

People typically contrast SN with systems that keep a large amount of centrally-stored state information, whether in a database, an application server, or any other similar single point of contention.

One of the approaches to achieve SN architecture for stateful applications ( which typically maintain state in a centralized database ) is the use of a data grid, also known as distributed caching.

This type of supernova does not typically create the spectacular nebula more typical of Type II supernovas, such as SN 1054 which created the Crab Nebula.

SGI continued to enhance its line of servers ( including some supercomputers ) based on the SN architecture.

Other well-known supernova remnants include the Crab Nebula, Tycho, the remnant of SN 1572, named after Tycho Brahe who recorded the brightness of its original explosion, and Kepler, the remnant of SN 1604, named after Johannes Kepler.

In March 1901 the first supernova of M100 was found, SN 1901B, a type I supernova found when magnitude 15. 6 at a distance from its nucleus.

SN 1914A was then discovered in February to March 1914 ; its type was undeterminable but was found when magnitude 15. 7 at some distance from the center.

Observations of M100 from February 21, 1960 to June 17, 1960 led to the discovery of SN 1959E, another type I supernova, with the faintest magnitude, 17. 5, among the five found, at 58 " E and 21 " S from its nucleus.

On April 15, 1979, the first type II supernova found in the M100 galaxy was discovered ; however the star SN 1979C faded quickly ; later observations from x-ray to radio wavelengths revealed its remnant.

However, under commercial pressure, Nikko sold its interest in the Meccano name and System back to Meccano SN, the French parent company, in August 2007.

SN Brussels, which formed in 2002, had its head office in Airport Building 117 when it existed.

After its bankruptcy in 2001, the newly formed SN Brussels Airlines took over part of Sabena's assets in February 2002, which then became Brussels Airlines.

SN 2006gy ( upper right ) and its parent galaxy NGC 1260 ( lower left ) in false color as observed through the Chandra X-Ray Observatory.

In February 2002, SN Airholding took over the Belgian airline DAT, a subsidiary of Sabena and changed its trading name to SN Brussels Airlines.

The online SN Today revived the tradition of publishing boxscores in its virtual pages.

Also as part of its reorganization in 2011, Benson Taylor was named managing editor of SN magazine and Paul Kasko was named managing editor of SN Today and SN Feed.

SN sponsors its own annual Team, Player, Pitcher, Rookie, Reliever, Comeback Player, Manager, and Executive of the Year awards.

Prior to 2005, the SN Comeback Player Award was generally recognized as the principal award of its type, as MLB did not give such an award until that year.

The transient's low luminosity as compared to typical core-collapse supernova, combined with its spectral attributes and dust covered properties, make it nearly identical to NGG 6946's SN 2008S.

As of late 2004, there had been two reported supernovae in the galaxy: SN 1954J, which attained a magnitude of 16 at its brightest, and SN 2004dj.

* 1910: O. H. Basquin proposes a log-log relationship for SN curves, using Wöhler's test data.

His interest in the guest star seems to have come accidentally whilst observing a comet in December 1230, which prompted him to search for evidence of past guest stars, among those SN 1054 ( as well as SN 1006 and SN 1181, the two other historic supernovas from the early second millennium ).

There is some doubt about whether a web application with many independent web nodes but a single, shared database ( clustered or otherwise ) should be counted as SN.

While there is no single point of contention within the software / hardware components of SN systems, it should be noted that information from disparate nodes may still need to be reintegrated at some point.

The historic supernova SN 1006 is described by various sources as appearing on April 30 to May 1, 1006, in the constellation of Lupus.

SN 1987A was discovered by Ian Shelton and Oscar Duhalde at the Las Campanas Observatory in Chile on February 24, 1987, and within the same 24 hours independently by Albert Jones in New Zealand.

For Sherman's March I used a miniature Nagra SN, a very highly developed piece of recording equipment that could fit on my belt.

Significantly, SN 2006jc was destroyed in a supernova explosion two years later, observed on October 9, 2006.

On 12 April 2005 SN Brussels took holding control of Virgin Express and on 31 March 2006 they announced their merger.

in other words it fixes S, and sends any M to another point N such that the segment SN is on the same line as SM, but scaled by a factor λ.

After having been acquired by a group of investors in June 2002, which led to the launch of scheduled flights on the Brussels-Johannesburg route, Sobelair was passed on to SN Brussels Airlines in early 2003, for which it operated charter flights henceforth.

Scientists on board the KAO tracked the formation of heavy elements like iron, nickel, and cobalt from the massive fusion reactions of supernova SN 1987A.

He has also worked on searches for dwarf stars and discovered a supernova ( SN 1997bq in NGC 3147 ) in 1997.

The supernova, named SN 1993J, was discovered on 28 March 1993 by F. Garcia in Spain.

A Type II supernova, designated as SN 2012aw, was discovered in M95 on 16 March 2012.

Supernova SN 1986J was discovered on August 21, 1986 at apparent magnitude 14.

The airline has merged with SN Brussels Airlines to form Brussels Airlines which started operations on 25 March 2007 Virgin Express has its head office in Building 116 at Brussels Airport in Zaventem, Belgium, near Brussels.

The airline soon concentrated on low-budget scheduled flights out of its Brussels hub and became a major competitor for Sabena and later SN Brussels Airlines.

The star is the central star in the Crab Nebula, a remnant of the supernova SN 1054, which was widely observed on Earth in the year 1054.

The peculiar Type Ia supernova SN 2002cx was discovered with the Oschin telescope on 2002 May 12. 21 UT.

The 4 SN cars were converted into motorized combination baggage / passenger cars and used on the Woodland Branch.

It has netted, on September 11, 2000 ( IAUC 7494, September 22, 2000 ), the discovery by Matteo M. M. Santangelo of supernova SN 2000dl in the distant galaxy UGC 1191, near the center of the galaxy cluster Abell 240.

The symbol Θ ( a Greek theta, making a ' th ' sound ) denotes the book Things a Computer Scientist Rarely Talks About, KLR denotes the book Mathematical Writing ( by Knuth, Larrabee, and Roberts ), GKP and CM denote the book Concrete Mathematics ( by Graham, Knuth, and Patashnik ), f1 denotes fascicle 1, CMT denotes the book Computer Modern Typefaces, DT denotes the book Digital Typography, SN denotes Surreal Numbers, CWEB denotes the book The CWEB System of Structured Documentation, DA denotes the book Selected Papers on Design of Algorithms, and FG denotes the book Selected Papers on Fun and Games.

SN 1006 was a supernova, widely seen on Earth beginning in the year 1006 ; Earth was about 7, 200 light years away from the supernova.