Importance

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Abstract

A cost associated with taking a checkpoint is determined. The cost includes an energy cost. An interval between checkpoints is computed so as to minimize the cost. An instruction is sent to schedule the checkpoints at the computed interval. The energy cost may further include a cost of energy consumed in collecting and saving data at a checkpoint, a cost of energy consumed in re-computing a computation lost due to a failure after taking the checkpoint, or a combination thereof. The cost may further include, converted to a cost equivalent, administration time consumed in recovering from a checkpoint, computing resources expended in taking a checkpoint, computing resources expended after a failure in restoring information from a checkpoint, performance degradation of an application while taking a checkpoint, or a combination thereof.

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First Claim