Performance of OpenMP loop transformations for the acoustic wave stencil on GPUs
Résumé
Main Findings :
• As a general remark, both loop transformations, unroll and tiling can yield significant improvements to the performance of the kernel evaluated on all GPUs evaluated.
• Performance gains ranged from 1.13x to 2.93x. In most scenarios, the best performance was achieved by combining unroll and tiling.
• The performance of tiling is highly sensitive to the choice of block size.
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