基于局域网和MPI的PC集群计算环境

利用现成PC构建由几十乃至几百台PC组成的廉价、实用且性能优良的并行计算机。实验系统是在由40台PC组成的以太局域网内，建立一个基于TRUBO—LINUX和MPI的集群计算环境，并在此基础上进行并行计算实验和性能测试。实验表明，这种环境适合于那些进程之间通信不频繁的或者通信开销相对于计算开销小得多的中粒度或粗粒度的计算任务。

PC cluster computing environment based on LAN and MPI

PCs available on hand are used to construct parallel computers consisting of tens or even hundreds PCs, which are cheap, practical but with high performance. The experiment system is a cluster computing environment based on TRUBO-LINUX and MPI, which consistsof 40 PCs connected by an Ethernet LAN. In this environment, experimentsof parallelcomputing and performance testing were made. Experimental results indicatethat this kind of environments are suitable for coarse-grained and medium-grained parallel tasks, of which intercommunications among processes are infrequent or cost much lower compared to computations.