Cray C90

The Cray C90 series (initially named the Y-MP C90) was a vector processor supercomputer launched by Cray Research in 1991. The C90 was a development of the Cray Y-MP architecture. Compared to the Y-MP, the C90 processor had a dual vector pipeline and a faster 4.1 ns clock cycle (244 MHz), which together gave three times the performance of the Y-MP processor. The maximum number of processors in a system was also doubled from eight to 16. The C90 series used the same Model E IOS (Input/Output Subsystem) and UNICOS operating system as the earlier Y-MP Model E.

The C90 series included the C94, C98 and C916 models (configurations with a maximum of four, eight, and 16 processor respectively) and the C92A and C94A (air-cooled models). Maximum SRAM memory was between 1 and 8 GB, depending on model.

The D92, D92A, D94 and D98 (also known as the C92D, C92AD, C94D and C98D respectively) variants were equipped with slower, but higher-density DRAM memory, allowing increased maximum memory sizes of up to 16 GB, depending on the model.

C90

C90 or C-90 can refer to:

ANSI C

ANSI C, ISO C and Standard C refer to the successive standards for the C programming language published by the American National Standards Institute (ANSI) and the International Standards Organization (ISO). Historically, the names referred specifically to the original and best-supported version of the standard (known as C89 or C90). Software developers writing in C are encouraged to conform to the standards, as doing so aids portability between compilers.

History and outlook

The first standard for C was published by ANSI. Although this document was subsequently adopted by International Organization for Standardization (ISO) and subsequent revisions published by ISO have been adopted by ANSI, the name ANSI C (rather than ISO C) is still more widely used. While some software developers use the term ISO C, others are standards body–neutral and use Standard C.

C89

In 1983, the American National Standards Institute formed a committee, X3J11, to establish a standard specification of C. The standard was completed in 1989 and ratified as ANSI X3.159-1989 "Programming Language C." This version of the language is often referred to as "ANSI C". Later on sometimes the label "C89" is used to distinguish it from C99 but using the same labelling method.

Cray

Cray Inc. is an American supercomputer manufacturer headquartered in Seattle, Washington. It also manufactures systems for data storage and analytics.

Cray manufactures its products in Chippewa Falls, Wisconsin, where its founder, Seymour Cray, was born and raised. The company also has offices in St. Paul, Minnesota (the site of its original headquarters under Seymour Cray), and numerous other sales, service, engineering, and R&D locations around the world.

Several Cray supercomputer systems are listed in the TOP500, which ranks the most powerful supercomputers in the world. The number of Cray systems on the list varies from year to year.

The company's predecessor, Cray Research, Inc. (CRI), was founded in 1972 by computer designer Seymour Cray. Seymour Cray went on to form the spin-off Cray Computer Corporation (CCC), in 1989, which went bankrupt in 1995, while Cray Research was bought by SGI the next year. Cray Inc. was formed in 2000 when Tera Computer Company purchased the Cray Research Inc. business from SGI and adopted the name of its acquisition.

Bas-Lag

Bas-Lag is the fictional world in which several of China Miéville's novels are set. Bas-Lag is a world where both magic (referred to as "thaumaturgy") and steampunk technology exist, and is home to many intelligent races. It is influenced by the themes and tropes of multiple genres of science fiction, fantasy, and horror.

The Bas-Lag novels

So far there have been three novels set in Bas-Lag. They are:

Additionally, the short story "Jack", featured in the 2005 collection Looking for Jake, is a Bas-Lag story.

Geography

Bas-Lag possesses a number of continents. Two landmasses, Rohagi and Bered Kai Nev, are named in the three novels, though numerous other landmasses and unique structures play important roles in the novels.

Rohagi

The exact proportions and geography of Rohagi are unknown. New Crobuzon lies about ten miles (16 km) inland from its eastern coast, which borders the Swollen Ocean. Immediately south of New Crobuzon is the Rudewood, beyond which lies the Mendican Hills. North of New Crobuzon, along the coast but separated by the Bezhek Mountains, are the ruins of Suroch. To the west, about a thousand miles from New Crobuzon and far beyond the Dancing Shoe Mountains, lies the four-hundred mile wide freshwater lake called Cold Claw Loch. The Loch connects with the vast, inland Cold Claw Sea, eight hundred miles to the north, via a natural channel called Cold Claw Sound. The Cold Claw Sea is talon-shaped, stretching eastward a great distance, almost connecting with the Swollen Ocean before curving southward for about two hundred miles, finally ending about seven hundred miles north of New Crobuzon. This southward curve is the Gengris, and is populated by the dangerous and unpredictable grindylow.

Cray (disambiguation)

Cray is a supercomputer manufacturer based in Seattle, Washington.

Cray may also refer to:

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See also