CRAC: An Automatic Assistant Compiler of Checkpoint/Restart for OpenCL Program

Nowadays, people use multiple devices to meet a growing requirement for computing. With the application of multi-card computing, fault tolerance, load balance, and resource sharing have been the hot issues and the checkpoint/restart (CR) mechanism is critical in a preemptive system. This paper proposes a checkpoint/restart framework including the automatic compiler (CRAC) to achieve a feasible checkpoint/restart system, especially for GPU applications on heterogeneous devices in OpenCL program. By offering the positions of the checkpoint/restart in source code, CRAC inserts primitives into programs and invokes the runtime support modules for final results. A comprehensive example and experiments have demonstrated the feasibility and effectiveness of proposed framework.