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PROTOTYPE OF A NEW CACHE-LEVEL SCHEME THAT KEEPS TWO LIVE CHECKPOINTS AT ALL TIMES, FORMING A SLIDING ROLLBACK WINDOW THAT MAINTAINS A LARGE MINIMUM AND AVERAGE LENGTH.

By Radu Teodorescu, Josep Torrellas, Support A Large, Rollback Window, Immediately After and A Checkpoint

Abstract

Backward recovery through checkpointing and rollback is a popular approach in modern processors to providing recovery from transient and intermittent faults. 1 This approach is especially attractive when designers can implement it with very low overhead, typically using dedicated hardware support. The many proposals for low-overhead checkpointing and rollback schemes differ in a variety of ways, including the level of the memory hierarchy checkpointed and the organization of the checkpoint relative to the active data. Schemes that checkpoint at the cache level occupy an especially attractive design point. 2,3 The hardware for thes

Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.135.4567
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