unroll - ορισμός. Τι είναι το unroll
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  • παραδείγματα χρήσης (πολλές φράσεις με μετάφραση)
  • ετυμολογία

Τι (ποιος) είναι unroll - ορισμός

LOOP TRANSFORMATION TECHNIQUE
Unroll loops; Loop Unrolling; Loop unwinding; Unrolling the loop

unroll      
v. a.
1.
Unfold, open.
2.
Display, lay open.
3.
Develop, evolve, unfold, open.
unroll      
¦ verb open out from a rolled-up state.
unroll      
(unrolls, unrolling, unrolled)
If you unroll something such as a sheet of paper or cloth, or if it unrolls, it opens up and becomes flat when it was previously rolled in a cylindrical shape.
I unrolled my sleeping bag as usual...
Guests bring movies on tape, and show them on the screen that unrolls from the ceiling.
VERB: V n, V

Βικιπαίδεια

Loop unrolling

Loop unrolling, also known as loop unwinding, is a loop transformation technique that attempts to optimize a program's execution speed at the expense of its binary size, which is an approach known as space–time tradeoff. The transformation can be undertaken manually by the programmer or by an optimizing compiler. On modern processors, loop unrolling is often counterproductive, as the increased code size can cause more cache misses; cf. Duff's device.

The goal of loop unwinding is to increase a program's speed by reducing or eliminating instructions that control the loop, such as pointer arithmetic and "end of loop" tests on each iteration; reducing branch penalties; as well as hiding latencies, including the delay in reading data from memory. To eliminate this computational overhead, loops can be re-written as a repeated sequence of similar independent statements.

Loop unrolling is also part of certain formal verification techniques, in particular bounded model checking.

Παραδείγματα από το σώμα κειμένου για unroll
1. Their job was to get the banner to the top and unroll it.
2. Nearly 6,000 soldiers will unroll their sleeping bags in D.C. schools.
3. The wing can travel rolled up in a spacecraft, then unroll when released.
4. "As the years and the generations unroll, we will learn how to make it routine, as we have done with airline travel after a hundred years.
5. Let us knowingly head into a real mega–strike, let us unroll the mother of all strikes, a breakdown that will last months, and culminate in true change.