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A Hardware Evaluation System for an Interconnection Network Using Reconfigurable Devices

使用可重构器件的互连网络的硬件评估系统

基本信息

批准号：
17500051
负责人：
KOHATA Masaki
金额：
$ 2.18万
依托单位：
Okayama University of Science
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17500051/
关键词：
Parallel Processing Interconnection Network FPGA PC Cluster ネットワーク

项目摘要

In this research, we designed and developed a network card for PC clusters using field programmable gate arrays (FPGA), and realized a PC cluster system with this card. This network card is a 32-bit PCI bus card and consists of one FPGA, two RAMs, and four connectors. The PCI interface, four communication ports, and a five-port switch are implemented in one FPGA, and the network configuration can be changed by reconfiguring the FPGA. The communication rate is recorded in one of the two RAMs, and the timing of events, such as communication start/end, are recorded in another RAM.We developed software, including a device driver for the network card, communication library, and visualization tools. The device driver is implemented as a kernel module for the Linux OS. The communication library provides basic communication functions, such as initialize, finalize, send, receive, broadcast, and barrier synchronization. In addition, a reconfiguration tool was developed, which reconfigures the FPGA in each PC of the cluster from a management PC.We used the card to construct a PC cluster system connected by a ring network. For system evaluation, measurement and comparison of communication performance were performed while changing the depth of the communication buffer by reconfiguring the FPGA. The communication rate and timing were measured and visualized at the execution of Jacobi method, using the card's communication log function.In conclusion, the test confirmed the basic system functions. We are currently expanding the system to a two-dimensional lattice-type network.

本研究利用现场可编程门阵列（FPGA）设计并开发了一种PC集群网卡，并利用该网卡实现了一个PC集群系统。该网卡是一个32位PCI总线卡，由一个FPGA、两个RAM和四个连接器组成。PCI接口、四个通信端口和一个五端口交换机在一个FPGA中实现，并且可以通过重新配置FPGA来改变网络配置。通信速率被记录在两个RAM中的一个中，并且事件的定时（例如通信开始/结束）被记录在另一个RAM中。我们开发了软件，包括用于网卡的设备驱动程序、通信库和可视化工具。设备驱动程序是作为Linux操作系统的内核模块实现的。通信库提供基本的通信功能，如初始化、完成、发送、接收、广播和屏障同步。此外，还开发了一个FPGA重构工具，将管理PC机上的FPGA重构为集群中每台PC机上的FPGA。利用该板卡构建了一个由环形网络连接的PC集群系统。对于系统评估，在通过重新配置FPGA来改变通信缓冲器的深度的同时进行通信性能的测量和比较。在执行Jacobi方法时，利用卡的通信日志功能，测量并可视化了通信速率和通信时序，验证了系统的基本功能。我们目前正在将该系统扩展到二维晶格型网络。