【摘要】 现有化学计量学软件普遍采用的偏最小二乘(PLS)算法均以单线程方式计算,建模速度缓慢,给应用带来较大的不便。随着多核处理器的普及,采用多线程并行计算技术可显著提高算法执行速度。本文将多线程并行计算技术引入化学计量学软件开发,提出并实现了PLS算法的并行化计算。利用标准数据集进行了性能对比实验,结果表明在四核计算机中多线程并行计算比单线程计算有大约3.1倍的速度提升。更多还原

【Abstract】 PLS which is commonly used in most Chemometrics software always calculates in a single-threaded way, which brings low modeling speed and inconvenience to apply.With the popularization of the multi-core processor, multithread parallel computing technology could significantly boost the execution speed.In this paper, the multithreaded parallel computing technology was introduced into the development of Chemometrics software.A kind of parallelizing calculation of PLS was proposed and actualized.The contrast experiment with two datasets demonstrated that multithread parallel computation on a quad-core computer achieved a speed of 3.1 times faster than that of a single-thread computation.更多还原