Adjusting a processor operating parameter based on a...

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

Reexamination Certificate

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C714S015000, C714S016000, C714S017000, C712S228000, C712S244000

Reexamination Certificate

active

07607042

ABSTRACT:
Embodiments include a controller apparatus, a computerized apparatus, a device, an apparatus, and a method. A controller-apparatus includes a monitoring circuit for detecting a computational error corresponding to an execution of an instruction of a sequence of instructions by a processor subsystem having an adjustable operating parameter. The controller apparatus also includes a recovery circuit for rolling back an execution of the sequence of instructions to a checkpoint in response to the detected computational error. The controller apparatus further includes a control circuit for adjusting the adjustable operating parameter in response to a performance criterion.

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