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When confronted with nested loops, the granularity of the computations that are assigned to threads will directly affect performance. Loop transformations such as splitting and merging nested loops can make parallelization easier and more productive.
Authored by admin Last updated on 07/05/2019 - 14:48
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Authored by admin Last updated on 07/05/2019 - 19:59
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检测线程应用中的内存带宽饱和度

检测线程应用中的内存带宽饱和度 (PDF 231KB)

Authored by admin Last updated on 07/05/2019 - 19:58
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粒度与并行性能

One key to attaining good parallel performance is choosing the right granularity for the application. Granularity is the amount of real work in the parallel task. If granularity is too fine, then performance can suffer from communication overhead.
Authored by admin Last updated on 07/05/2019 - 19:53