Jump to content

Cache invalidation

From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by Bearcat (talk | contribs) at 18:24, 31 July 2010 (categorization/tagging/cleanup using AWB). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Cache invalidation is a process whereby entries in a cache are deleted. It can be done explicitly, as part of a cache coherency protocol in a parallel computer. In such a case, a compute node updates changes variable and then invalidates the cached values of that variable across the rest of the computer system.