data dependency
data dependency A situation in which an instruction is dependent on a result from a sequentially previous instruction before it can complete its execution. In high-performance processors employing
pipeline or
superscalar techniques, a data dependency will introduce a disruption in the smooth operation of a processor pipeline or inhibit the parallel issue of instructions in a superscalar processor.
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Fetch unit design for scalable simultaneous multithreading (ScSMT).
Magazine article from: Journal of Computer Science & Technology; 5/1/2001; ; 700+ words
; ...fetching introduces holes in the fetch flow, also decreasing fetch bandwidth. When we try to augment the issue rate of a superscalar processor the total penalty of fetch hazards increases more than linearly, making the fetch unit to become a performance bottleneck...
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dependency ratio
Book article from: A Dictionary of Sociology
dependency ratio A simple indicator of the age composition of the...varies in the range 0.5 to 1.00. Early definitions of the dependency ratio refer to the total number of young dependants divided...due to the economic burden of ageing populations, the dependency ratio is defined as the total number of ...
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normal forms
Book article from: A Dictionary of Computing
...each entry is an elementary data item. In defining further...the concept of functional dependency is used. This concept is quite...its definition. A functional dependency thus exists only within a...the concept of multivalued dependency and fifth normal form that...
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superscalar
Book article from: A Dictionary of Computing
...instructions are simultaneously accessed from memory and, where data dependency constraints allow, are issued for simultaneous execution by...currently available. Optimized compilation is needed to minimize data dependencies between consecutive instructions in order to...
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Anguilla
Encyclopedia entry from: World Press Encyclopedia
Anguilla Basic Data Official Country Name...years as an incorporated dependency with neighboring islands...as a separate British dependency in 1980. The British monarch...contributions. As a British dependency, laws governing freedom...
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belief systems
Book article from: A Dictionary of Computing
...can be viewed as unsupported fact, i.e. data that are believed to be true (or false...knowledge thus indicates missing or incomplete data, but partial belief implies a degree of doubt about some given data. Methods for representing degrees of belief...
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