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传统的 TCP/ IP协议严重影响并行系统的通信性能 ,用户层通信技术是解决不必要的数据拷贝和运行空间切换的有效途径。虚拟接口结构 (virtual interface architecture,VIA)是一种先进的用户层通信技术 ,它能够为机群系统提供高效可靠的通信性能。该文针对这种工业标准的通信模式进行了深入的分析 ,阐述了 VIA的结构特征 ,并通过一个典型的求 π例程来说明它的基本编程模型。为了提高系统的鲁棒性 ,在此基础上加入自适应环节 ,使得系统能够自动判别可用节点以进行通信。最后通过大数据量传输来对比说明VIA对通信系统性能的改进
The traditional TCP / IP protocol seriously affects the communication performance of the parallel system. User-layer communication technology is an effective way to solve unnecessary data copy and operation space switching. Virtual interface architecture (VIA) is an advanced user-layer communication technology that provides efficient and reliable communication performance for fleet-based systems. This paper analyzes in depth the communication mode of this industry standard, expounds the structural features of VIA, and explains its basic programming model through a typical π-routine. In order to improve the robustness of the system, an adaptive link is added on the basis of this to enable the system to automatically identify available nodes for communication. Finally, the transmission of large amounts of data to contrast VIA communication system performance improvements