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中文摘要：
文章针对三角形非结构网格，在几何区域分解并行的基础上，利用Sn方法求解中子输运方程的源迭代过程中各方向的计算是独立的这一特点，考虑各方向扫描的并行性，设计了各方向同时扫描的并行流水线算法，并对一单群Sn输运计算问题进行了验证。结果表明：当处理器个数为32时，加速比达23．57，并行效率为0．736。
英文摘要：
Aiming at the triangle unstructured grid, based on the domain decomposition technique, a new direction parallel S. sweeping algorithm was developed with the utilization of the independence of different neutron flight directions during the S. sweeping process. It was verified with a mono-group S8 neutron transport calculation problem. The results show that when the CPU number is 32, the speedup ratio is 23.57, and the parallel efficiency is 0. 736.
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