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核技术  2015 

基于双向遍历的蒙特卡罗临界计算并行方法

DOI: 10.11889/j.0253-3219.2015.hjs.38.060602, PP. 60602-60602

Keywords: 临界,并行计算,蒙特卡罗,SuperMC

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Abstract:

在基于蒙特卡罗粒子输运方法的反应堆模拟中,如裂变堆、聚变裂变混合堆等,达到可接受的统计误差需要大量的计算时间,这已成为蒙特卡罗方法的挑战问题之一,需通过并行计算技术解决。为解决现有方法中通信死锁的问题并保证负载均衡性,设计了基于双向遍历的临界计算并行算法。该方法基于超级蒙特卡罗核计算仿真软件系统SuperMC进行实现,以池式钠冷快堆BN600基准模型进行验证,并与MCNP进行对比。测试结果表明,串行和并行计算结果一致,且SuperMC并行效率高于MCNP。

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