Research And Implementation Of Network Mpi Based On Via Fibre Channel Switching

Now, avionics system of data communication network mainly uses MIL-STD-1553B. In foreign advanced countries, the fourth generation avionics system of data communication network is cluster system based on fibre interconnection.The author's teacher applied for aviation scientific fund project "Avionics system oriented Fibre Channel switched Network" (02F53031).The auther took part in that project. The research focuses are communication protocol of Fibre Channel switched Network (FC-NET). Main research work includes the following several works:In order to integrate Fibre Channel and VIA technologies into FC-NET, this paper has put forward a new design scheme of driver based on object oriented technology. The 3 layers structure has been adopted in this scheme and applied to implement the VIA communication protocol, which can shortened VIA drivers development cycle and raised the code reusability and strengthened the scalability of VIA.This paper has put forward FC-VIA (Fibre Channel-Virtual Interface Architecture) communication protocol, which accords with the user-layer communication protocol industrial standard of VIA technology and supports the demand of low latency and high bandwidth for the high-performance cluster system, on the basis of Fibre Channel switched Network. The Kernel Agent mechanism based on Linux system Bottom Half Function is used. On one hand, it implemented the zero copy data communication between sender and receiver. On the other hand, it also implemented the management of VI queues on the software layer. FC-VIA is compared with M-VIA of giga-bit Ethernet, in which the VIA is implemented wholely by software method. In FC-VIA communication latency is 4 microseconds and communication bandwidth is 686Mbps. But in M-VIA communication latency is 19 microseconds and commnunication bandwidth is 480Mbps under giga-bit Ethernet.In order that FC-NET can be used in the avionics system easily, MPI-FC-VIA has been designed to support FC-V1A communication protocol through adding bottom layer communication library in the MPICH. In the long run, this paper has far-reaching meanings to the research of communication protocol of Fibre Channel switched Network.