交互分析软件MSDP解码效率的优化  

Decoding Efficiency Optimization for MSDP

作　　者：刘军[1] 黄文辉[1] 

机构地区：[1]广东省地震局,广州510070

出　　处：《华南地震》2017年第3期41-47,共7页South China Journal of Seismology

基　　金：地震行业科研专项(201308008)资助

摘　　要：目前的交互分析软件MSDP使用单线程解码,即在解码过程中只有一个CPU处于工作状态,其他CPU始终处于空闲状态。通过对MSDP的改进,利用多线程机制,充分调用多CPU的计算能力,实现了多线程同步解码,从而使得MSDP的解码效率大幅提升,以四核CPU为例,解码时间缩短了近70%。At present, interaction analysis software MSDP uses single thread to decode waveform data, that means, during the decoding process only one CPU is working, the other CPUs remain idle. Through the MSDP improvement, the paper uses the multi-threading mechanism and fully multi-CPU computing power to achieve a multi-thread synchronization decoding, which is allowing the MSDP decoding efficiency increased dramatically,take quad-core CPU as example, the decoding time costing is reduced by nearly 70%.

关 键 词：交互分析 MSDP 多线程 解码 seed格式 

分 类 号：P315.9[天文地球—地震学]