1747-L514,A-B,1747-L514
任务并行化优化
通过对快速排序算法的分析,快速排序是一个递归调用算法,算法的执行过程中会产生大量重复函数调用,并且函数的执行相互独立。对于快速排序的一次扫描运算而言,算法首先确定哨兵元素(pivot),并对数据序列进行一次调整,然后对哨兵元素的左右区间再次进行递归调用算法。
如下所示,对任务并行化优化针对每次扫描调整后的左右子区间,将每个子区间的运算抽象为一个任务,并通过OpenMP中的任务并行化原语#pragma omp task实现任务的并行化执行,从而实现了快速排序的任务并行化优化。
1747-L514,A-B,1747-L514:李
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