invalidate - définition. Qu'est-ce que invalidate
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Qu'est-ce (qui) est invalidate - définition

SPECIAL CASE OF MEMORY COHERENCE
Cache consistency; Coherence protocol; Cache Coherency; Cache Coherence; Cache coherence problems; Cache coherency; Coherence traffic; Coherency traffic; Cache coherent system; Write invalidate protocol; Write-invalidate protocol; Coherent cache; Cache states; Cache Consistency
  • An illustration showing multiple caches of some memory, which acts as a shared resource
  • Coherent caches: The value in all the caches' copies is the same.
  • Incoherent caches: The caches have different values of a single address location.

invalidate      
(invalidates, invalidating, invalidated)
1.
To invalidate something such as an argument, conclusion, or result means to prove that it is wrong or cause it to be wrong.
Any form of physical activity will invalidate the results...
VERB: V n
2.
If something invalidates something such as a law, contract, or election, it causes it to be considered illegal.
An official decree invalidated the vote in the capital...
VERB: V n
invalidate      
[?n'val?de?t]
¦ verb
1. make or prove (an argument, theory, etc.) unsound or erroneous.
2. make (an official document or procedure) no longer legally valid.
Derivatives
invalidation noun
invalidate      
v. a.
Nullify, annul, cancel, overthrow, make void, render of no effect.

Wikipédia

Cache coherence

In computer architecture, cache coherence is the uniformity of shared resource data that ends up stored in multiple local caches. When clients in a system maintain caches of a common memory resource, problems may arise with incoherent data, which is particularly the case with CPUs in a multiprocessing system.

In the illustration on the right, consider both the clients have a cached copy of a particular memory block from a previous read. Suppose the client on the bottom updates/changes that memory block, the client on the top could be left with an invalid cache of memory without any notification of the change. Cache coherence is intended to manage such conflicts by maintaining a coherent view of the data values in multiple caches.

Exemples du corpus de texte pour invalidate
1. He‘d invalidate campaign finance laws, he would eliminate affirmative action.
2. That record does not invalidate his criticisms now.
3. Any person can offer as many prayers as he wishes with one ablution, provided he does not invalidate it by any of the ways that invalidate ablution.
4. The authority to invalidate publicly controversial statements is not proper.
5. Indeed it is recommended, if you can, to have a fresh ablution whenever you invalidate one.