Flux Region Assignment Method using Ray Trace Information for the Method of Characteristics to Improve Cache Efficiency
Flux Region Assignment Method using Ray Trace Information for the Method of Characteristics to Improve Cache Efficiency
复制标题
利用光线追踪信息的通量区域分配方法提高缓存效率的特征方法
DOI：
10.1080/00295639.2018.1501978
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Endo
中科院分区：
文献类型：
--
作者：
A. Yamamoto;A. Giho;T. Endo
提出了一种提高特征法缓存效率的通量区域分配算法。在MOC计算过程中，为了使存储器访问的步幅最小，根据射线跟踪序列分配通量区域标识。在三维传输代码GENESIS中实现了该方法，并通过从压水堆燃料组件到压水堆全堆基准问题的验证计算，验证了该方法的性能。对缓存效率进行了定量比较，表明该方法提高了缓存效率，从而减少了计算时间。该方法在抑制内存需求的同时提高了缓存效率，从而减少了计算时间。
A flux region assignment algorithm to increase cache efficiency for the method of characteristics (MOC) is proposed. In order to minimize the stride of memory access, flux region identifications are assigned based on the ray trace sequence during the MOC calculation. The present method is implemented in the three-dimensional transport code GENESIS and its performance is confirmed through verification calculations ranging from single pressurized water reactor (PWR) fuel assembly to PWR full-core benchmark problems. Quantitative comparison of cache efficiency is carried out and the present method shows improved cache efficiency, which results in a reduction in computation time. The present method can reduce computational time by improving cache efficiency while suppressing memory requirement.