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Coarse-Grain Coherence Tracking: RegionScout and Region Coherence Arrays
January/February 2006 (vol. 26 no. 1)
pp. 70-79
Jason F. Cantin, University of Wisconsin-Madison
James E. Smith, University of Wisconsin-Madison
Mikko H. Lipasti, University of Wisconsin-Madison
Andreas Moshovos, University of Toronto
Babak Falsafi, Carnegie Mellon University
Coarse-grain coherence tracking is a new technique that extends a conventional coherence mechanism and optimizes coherence enforcement. It monitors the coherence status of large regions of memory and uses that information to avoid unnecessary broadcasts and filter unnecessary cache tag lookups, thus improving system performance and power consumption.
Index Terms:
RegionScout, region coherence arrays, coarse-grain coherence tracking, cache tag lookups, power consumption
Jason F. Cantin, James E. Smith, Mikko H. Lipasti, Andreas Moshovos, Babak Falsafi, "Coarse-Grain Coherence Tracking: RegionScout and Region Coherence Arrays," IEEE Micro, vol. 26, no. 1, pp. 70-79, Jan.-Feb. 2006, doi:10.1109/MM.2006.8
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