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Energy-aware fault tolerance in fixed-priority real-time embedded systems

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3 Author(s)
Ying Zhang ; Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA ; Chakrabarty, K. ; Swaminathan, V.

We investigate an integrated approach to fault tolerance and dynamic power management in real-time embedded systems. Fault tolerance is achieved via checkpointing and power management is carried out using dynamic voltage scaling (DVS). We present feasibility-of-scheduling tests for checkpointing schemes for a constant processor speed as well as for variable processor speeds. DVS is then carried out on the basis of these feasibility analyses. Experimental results show that compared to fault-oblivious methods, the proposed approach significantly reduces power consumption and guarantees timely task completion in the presence of faults.

Published in:

Computer Aided Design, 2003. ICCAD-2003. International Conference on

Date of Conference:

9-13 Nov. 2003