An Asynchronous Two-Level Checkpointing Method to Solve Adjoint Problems on Hierarchical Memory Spaces.

The problem of data reversal in discretized adjoint problems is often solved using checkpointing, trading memory usage with computations and data movement. The authors present a useful model to design and implement an asynchronous two-level checkpointing method with parameterizable values for current and future system configurations. They also evaluate the benefits of new supercomputing hardware t...