Wan Protocol On The Hpc Cluster Analysis

With the rapid development of network technologies, cluster computing system , especially the cheaper PC cluster computing system,is becoming one of the leading technique in high-performance computer and parallel processing. However, because of the restrictions of the network bandwidth ,the communication speed between processes among the processors has become the bottleneck of the parallel computation systems. Thus, the key to develop the cluster computing system is to improve the communication performance.Currently,most cluster computing systems use TCP/IP as the communication protocol.This article studied the use of TCP/IP in cluster computing systems,find out the inapplicability of the TCP/IP in cluster computing systems,and discussed MPI and Active Message.At last this article proposed a new way to improve the communication performance.Now, PCs' performance is increasing and price is decreasing, and many units use PC clusters according to the high ratio of performance and value. Linux is realization of UNIX on PC, and it is open source and time-sharing operating system. Linux has become the popular operating system of PC cluster due to its powerful net function. MPI (Message passing Interface) is a mode widely used by parallel computers, and particularly is fit to parallel computer with distributed memory. For ten years, this mode has made material progress in application of computers. The Standard of MPI has defined binding to C, C++ and Fortran. MPICH is one of stable realization of MPI. It can build joint to C, C++, Fortran and Java. As the main parallel programming tool, MPI utilizes the socket which is the distributed IPC mechanism Linux provides to fulfill its communication function.So this paper analyses the mechanism of socket communication between distributed machines. This article studied the use of TCP/IP in cluster computing systems.find out the inapplicability of the TCP/IP in cluster computing systems,and discussed the communication mechanism of MPLAt last this article proposed a new way to improve the communication performance.And designed a fast communication protocol in Linux cluster of PC on 100M Ethernet to improve the communication performance of the cluster computing system.