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As we approach exascale, computational parallelism will have to drastically increase in order to meet throughput targets. Many‐core architectures have exacerbated this problem by trading reduced clock speeds, core complexity, and computation throughput for increasing parallelism. This presents two major challenges for communication libraries such as MPI: the library must leverage the performance advantages...
This paper explores the trade-offs between on-loaded versus offloaded network stack processing for systems with varying CPU frequencies. This study explores the differences of onload and offload using experiments run at different DVFS settings to change the frequency, while measuring performance and power. This allows for a quantitative comparison of the the performance and power and trade-offs between...
Historically, scientific computing applications have been statically linked before running on massively parallel High Performance Computing (HPC) platforms. In recent years, demand for supporting dynamically linked applications at large scale has increased. When programs running at large scale dynamically load shared objects, they often request the same file from shared storage. These independent...
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