Section: New Results

Checkpointing algorithms and fault prediction

In this series of work [22] , [49] , we deal with the impact of fault prediction techniques on checkpointing strategies, when the fault-prediction system provides either prediction windows or exact predictions. We extend the classical first-order analysis of Young and Daly in the presence of a fault prediction system, characterized by its recall and its precision. In this framework, we provide optimal algorithms to decide whether and when to take predictions into account, and we derive the optimal value of the checkpointing period. These results allow us to analytically assess the key parameters that impact the performance of fault predictors at very large scale.