Fault-tolerant multi-core microprocessing

Details Fault-tolerant multi-core microprocessing Fault-tolerant multi-core microprocessing

2007-04-17

2007-04-17

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S030000

Reexamination Certificate

active

10690727

ABSTRACT:
One embodiment disclosed relates to a method of executing program code on a target microprocessor with multiple CPU cores thereon. One of the CPU cores is selected for testing, and inter-core context switching is performed. Parallel execution occurs of diagnostic code on the selected CPU core and the program code on remaining CPU cores. Another embodiment disclosed relates to a microprocessor having a plurality of CPU cores integrated on the microprocessor chip. Inter-core communications circuitry is coupled to each of the CPU cores and configured to perform context switching between the CPU cores.

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