地下水数值模拟中P-PCG并行子程序包的改进  

Improvement of P-PCG subroutine package in numerical simulation of groundwater flow

作　　者：黄林显[1] 邵景力[1] 崔亚莉[1] 李玲[1] 程汤培[2] 

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100086 [2]北京应用物理与计算数学研究所,北京100086

出　　处：《湖南科技大学学报（自然科学版）》2012年第2期83-87,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家重点基础研究发展计划("973"计划)(2010CB428804)

摘　　要：在详细分析MODFLOW中P-PCG并行子程序包设计原理的基础上,针对其对层数较少模型加速效果不理想的特点提出了改进方案.在对同一算例数值模型的测试中,P-PCG并行子程序包加速比可以达到1.6,而改进后的P-PCG并行子程序包最大加速比可以达到3.2,明显提高了地下水数值模型的运行速度.The principle of design for parallel P-PCG subroutine package was introduced in detail,and some proposals were suggested,aiming at improving the acceleration performance of groundwater model which contains a few layers.In a comparison test for a calculation example,the speedup of parallel P-PCG subroutine package merely reach up to 1.6,while the speedup of improved parallel P-PCG subroutine package reach up to 3.2,which significantly accelerate the process of numerical simulation of groundwater flow.

关 键 词：地下水数值模拟 OpenMP技术 并行计算 P-PCG并行子程序包 

分 类 号：P641.2[天文地球—地质矿产勘探]