计算机科学 ›› 2023, Vol. 50 ›› Issue (11A): 221000136-5.doi: 10.11896/jsjkx.221000136
韩琦琦, 刘鑫
HAN Qiqi, LIU Xin
摘要： 随着超级计算机的发展,大规模数值计算、大数据分析对算力基础设施的能力和数量的要求日益增长,受成本与功耗等因素的制约,单个超算中心不能无限制扩大规模,异地超算互联互通为解决这个问题提供了一种新的思路。文中基于济南至青岛10 Gbps DWDM光纤网络,搭建了济青跨地域500 km高速互联的计算集群,实现了两地计算资源的统一调度,利用海气耦合模式COAWST中的海洋分量模式ROMS和大气分量模式WRF进行了多组同地和异地不同资源规模和配置的对比实验。实验结果表明,耦合模式在异地高速互联环境下协同计算是可行的,WRF模式和ROMS模式在济南同地和济青异地运行同一算例的模拟结果相同,WRF模式在济南集群运行、ROMS模式在青岛集群运行时,运行时间比二者都在济南集群运行时增加5%,单分量模式拆分在济南集群和青岛集群协同计算时通信耗时较长,异地高速互联环境更适合有分量模块的耦合模式。
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