Basic HTML version of Foils prepared 25 August 1997

Foil 29 Cache Coherent or Not?

From Master Set of Foils for 1997 Session of CPS615 Basic Simulation Track for Computational Science CPS615 -- Fall Semester 97. by Geoffrey C. Fox
Suppose two processors cache the same variable stored in memory of one of the processors
One must ensure cache coherence so that when one cache value changes, all do!
Interconnection Network
....
....
Interconnection Network
Cached Value of same shared variable

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