Task-specific power caps can shift the energy-time trade-off for GPU kernels in LSMS, but the paper's headline savings of 151% to 200% are artifacts of summing per-kernel percentages incorrectly.
In: Proceed- ings of the ACM Workshop on Software Engineering Methods for Parallel and High Performance Applications
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Power-Capping Metric Evaluation for Improving Energy Efficiency in HPC Applications
Task-specific power caps can shift the energy-time trade-off for GPU kernels in LSMS, but the paper's headline savings of 151% to 200% are artifacts of summing per-kernel percentages incorrectly.