G - Physics – 06 – F
Patent
G - Physics
06
F
354/234
G06F 15/16 (2006.01) G06F 12/12 (2006.01) G06F 13/16 (2006.01) G06F 15/173 (2006.01) H04L 12/56 (2006.01)
Patent
CA 1311851
Y0986-112 A HARDWARE MECHANISM FOR AUTOMATICALLY DETECTING HOT-SPOT REFERENCES AND DIVERTING SAME FROM FROM MEMORY TRAFFIC IN A MULTIPROCESSOR COMPUTER SYSTEM Abstract Of The Disclosure An interconnection network management architecture for use with a large shared memory multiprocessor computing system including a plurality of processors and a plurality of separately addressable main memory modules. Two parallel, interconnection networks are provided each capable of interconnecting any processor to any memory module, and each having different latency characteristics. A Hot-Spot detection means is associated with each main memory module for detecting when a particular address in that module has become a Hot Spot and includes a first memory for storing all detected Hot Spots. A diverter element is associated with each processor for selectively routing memory requests over either said first or second memory network contingent on its status as a Hot Spot. A second memory is included in each diverter element for storing all Hot Spots detected by the detector elements. A control mechanism determines if any current main memory address is a listed Hot Spot within said second memory and, if so, causes the main memory reference to be transmitted to the memory system over a selected interconnection network. Another component of this mechanism determines if a Y0986-112 particular address has been accessed a sufficient number of times within a given timeframe to be deemed a Hot Spot and removes Hot Spots from both the first and second memories when necessary.
589107
Mcauliffe Kevin Patrick
Norton Vern Alan
Pfister Gregory Francis
Rathi Bharat Deep
International Business Machines Corporation
Rosen Arnold
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