MPI程序中两种通信原语相关性研究

Broadcast in MPI:Research and Analysis on Communication Primitives

基于并行计算中将相同数据模块传递给所有处理器的实验,评估并比较了MPI-1标准化库中点对点通信与广播通信的性能.在延迟方面性能的比较是通过改变处理器的数目和数据模块大小来实现的,而工具Jump-shot-4则用于MPI通信程序性能的详细测试.

The performance of Broadcast Communication and Point-to-point Communication（both blocking and non-blocking） of the MPI-1 standard library on a cluster computer in sending the same data block to all processors is evaluated and compared in this paper.The performance in terms of latency is compared by varying the number of processors,and the data block size.The tool Jumpshot-4 is used for detailed measurement of the performance of MPI communications routines.