Energy efficient fault-tolerance task allocation scheme for real-time energy harvesting systems

Abstract

Fault-tolerance and energy have become important design issues in multiprocessor system-on-chips (SoCs) with the technology scaling and the proUferation of battery-pow�red mul tiprocessor SoCs. This paper proposed �n energy effiCl�t fault tolerance task allocation scheme for multiprocessor SoCs ID real time energy harvesting systems. The proposed fault-tolerance scheme is based on the principle of the primiarylbackup task scheduling, and can tolerate at most one single transient fault.Extensive simulated experiment shows that the proposed scheme can save up to 30 % energy consumption and reduce the miss ratio to about 10 % in the presence of faults.

Improved EDF Algorithm for Fault Tolerance with Energy Minimization

“…Energy storage is recharged & it depends upon the capacity of the system [4] [5]. When a task is executed in a system, it drains same energy from the system.…”

“…Reliability depends upon number of tasks completed within its relative deadline [1], [8]. Without any failure in the system and to achieve continuous reliability, authors are usually worked on fault tolerance with minimum energy consumption system [5]. A system may fail due to fault in a system with available sufficient energy.…”

“…Then, calculate sufficient or an optimal number of checkpoints for fault recovery in the system. Real time systems need same source of energy to do any job [5]. Consider two techniques to minimize energy consumption in the system.…”