Tiled memory power management
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United States of America Patent
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Apr 1, 2014
Issued Date -
N/A
app pub date -
Dec 17, 2009
filing date -
Nov 13, 2008
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Abstract
A tiled memory and a method of power management within the tiled memory provides efficient use of energy within a computer storage, which may be a spiral cache memory. The tiled memory is power-managed by placing tiles in a power-saving state, which may be a state in which storage circuits are powered-down and network circuits are powered-up, so that for serially-connected tiles, information can still be forwarded by a tile in the power-saving state. The tiles may be power managed under direction of a central controlled, which sends commands to the tiles to enter and leave the power-saving state, or the tiles may self-manage their power-saving state according to activity measured at the individual tiles. Activity may be measured at the tiles of a spiral cache by comparing a hit rate and a push back rate to corresponding thresholds. The measurements may be used with either tile-managed or centrally-managed techniques.
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