多核程序设计一书中第五章代码，讲述linux下使用pthread函数库进行多线程开发。-Multi-core programming code for a book chapter, talk about linux using pthread library for multi-threaded development.

根据不同的计费方式和通话时间进行通话费用的计算，选出合理的话费区间和选择业务方式-According to different billing methods and talk time calculation of the cost of a call to elect a reasonable range and choice business approach calls

we focus on the usage of the Intel Xeon Phi platform as a coprocessor in the offload programming model. We talk about the explicit offload model based on compiler pragmas, explaining how to offload functions, local scalars and arrays of known size, a