RTM using effective boundary saving: A staggered grid GPU implementation

Acknowledgments

The work of the first author is supported by China Scholarship Council during his visit to The University of Texas at Austin. This work is sponsored by National Science Foundation of China (No. 41390454). We wish to thank Sergey Fomel and two anonymous reviewers for constructive suggestions, which lead to massive amount of revision and improvement in this paper. The code of even-order GPU-based prestack RTM (combined with CPML boundary condition) using effective boundary saving strategy is available alongside this paper. The RTM examples are reproducible with the help of Madagascar software package (Fomel et al., 2013).