Scheme for Tolerating Single Transient Fault in Time Critical Applications with Optimal Checkpoint and Energy Constraint

Abstract

The approach proposed is to find optimal number of checkpoints for tolerating single transient fault in real time critical applications. Optimal numbers of check points are calculated in the consideration of energy as constraint. Deadline of the task is also affect the number of checkpoints. In the proposed approach we find the minimum execution time with checkpoints. If this is lesser then the deadline then the number of checkpoints are optimal, otherwise the task can not be scheduled. The approach is also suitable for finding optimal number of checkpoints with minimum energy consumption. The energy minimization is achieved by using DVS (Dynamic Voltage Scaling). We apply our algorithm on both static and dynamic voltage. It was found that the proposed approach is minimized energy on dynamic voltage level as comparison to static voltage level.