Qué (quién) es speculative execution - definición
speculative execution
<processor> A technique allows a superscalar processor to
keep its functional units as busy as possible by executing
instructions before it is known that they will be needed.
The Intel P6 uses speculative execution.
Compare branch prediction, speculative evaluation.
(1995-05-05)
Speculative execution
Speculative execution is an optimization technique where a computer system performs some task that may not be needed. Work is done before it is known whether it is actually needed, so as to prevent a delay that would have to be incurred by doing the work after it is known that it is needed.
Speculative evolution
![Sinopliosaurus fusuiensis]]'' with generalized spinosaurid morphology, and unique coloration pattern.](https://commons.wikimedia.org/wiki/Special:FilePath/"Sinopliosaurus" fusuiensis by PaleoGeek.png?width=200 "Sinopliosaurus fusuiensis]]'' with generalized spinosaurid morphology, and unique coloration pattern.")
![A four-armed "Green Martian" riding a "thoat" from [[Edgar Rice Burroughs]]'s [[Barsoom]], a fictional version of the planet [[Mars]]. Illustration by [[James Allen St. John]] (1920).](https://commons.wikimedia.org/wiki/Special:FilePath/Barsoom green martian.jpg?width=200 "A four-armed \"Green Martian\" riding a \"thoat\" from [[Edgar Rice Burroughs]]'s [[Barsoom]], a fictional version of the planet [[Mars]]. Illustration by [[James Allen St. John]] (1920).")
![Author [[Dougal Dixon]] with a model of a "Strida", one of the creatures featured in his 2010 book ''[[Greenworld]]''.](https://commons.wikimedia.org/wiki/Special:FilePath/Dixon Strida.jpg?width=200 "Author [[Dougal Dixon]] with a model of a \"Strida\", one of the creatures featured in his 2010 book ''[[Greenworld]]''.")
![Dromaeosauroides bornholmensis]]'', which is known from two teeth. Its appearance is inferred from related genera.](https://commons.wikimedia.org/wiki/Special:FilePath/Dromaeosauroides.jpg?width=200 "Dromaeosauroides bornholmensis]]'', which is known from two teeth. Its appearance is inferred from related genera.")
![Avatar]]'' (2009).](https://commons.wikimedia.org/wiki/Special:FilePath/Hellfire wasp.jpg?width=200 "Avatar]]'' (2009).")
![rhinograde]], using its ''nasorium'' to catch fish. Rhinogrades, created by [[Gerolf Steiner]] in 1957, are one of the earliest concrete examples of speculative zoology.](https://commons.wikimedia.org/wiki/Special:FilePath/Musée zoologique de Strasbourg-Rhinograde (Rhinogradentia, cropped).jpg?width=200 "rhinograde]], using its ''nasorium'' to catch fish. Rhinogrades, created by [[Gerolf Steiner]] in 1957, are one of the earliest concrete examples of speculative zoology.")
![mustelids]].](https://commons.wikimedia.org/wiki/Special:FilePath/Speculative Dinosaur Project Deltatheridian mustelids.jpg?width=200 "mustelids]].")
SCIENCE FICTION GENRE FOCUSED ON BIOLOGY
Speculative zoology; Speculative biology; Spec zoo; Speculative Evolution; Alternate evolution; Spec Evo
Speculative evolution is a genre of speculative fiction and an artistic movement focused on hypothetical scenarios in the evolution of life, and a significant form of fictional biology. It is also known as speculative biology and it is referred to as speculative zoology in regards to hypothetical animals.
Wikipedia
Speculative execution
Speculative execution is an optimization technique where a computer system performs some task that may not be needed. Work is done before it is known whether it is actually needed, so as to prevent a delay that would have to be incurred by doing the work after it is known that it is needed.
