Analysis approach and formulas for the transmission properties of uniform multicon-ductor interconnecting buses in high-speed integrated circuits are presented in this article. And further, by using a network approach...Analysis approach and formulas for the transmission properties of uniform multicon-ductor interconnecting buses in high-speed integrated circuits are presented in this article. And further, by using a network approach, a tapered bus system can be analyzed as a set of cascaded uniform buses with slightly different strip widths. Obtained results are in good agreement with the experimental data.展开更多
构建数据中心加速服务的软硬件系统级原型平台,需要考虑高计算能力、扩展性、灵活性和低成本等因素.为了提高数据中心的能力,从软硬件协同的角度研究数据中心异构计算在云平台架构、硬件实现、高速互连和应用等方面的创新,研究设计并构...构建数据中心加速服务的软硬件系统级原型平台,需要考虑高计算能力、扩展性、灵活性和低成本等因素.为了提高数据中心的能力,从软硬件协同的角度研究数据中心异构计算在云平台架构、硬件实现、高速互连和应用等方面的创新,研究设计并构建了一个可重构组合的软硬件加速原型系统,简化了现有以处理器为中心的系统级计算平台构建方法,实现目标软硬件设计的快速部署与系统级原型验证.针对以上目标,通过解耦的可重构架构设备虚拟化和远程映射等方法,发掘独立计算单元的潜力,构建了一套ISOF(independent system of FPGA(field programmable gate arrays))软硬件计算平台系统,可使其超越普通服务器设计所能提供的能力,实现计算单元低成本高效扩展,使客户端可灵活使用外设资源,并且为满足系统级通信挑战,设计了一套计算单元之间的通信硬件平台和交互机制.此外,为提升软硬件系统级平台的敏捷性,ISOF提供了灵活统一的调用接口.最后,通过对平台目标系统级的分析评估,验证了该平台在满足了当下计算与加速需求下,保证了高速、低延时的通信,以及良好的吞吐率和弹性扩容效率,另外在高速通信的基础上改进的拥塞避免和丢包恢复机制,满足了数据中心规模通信的稳定性需求.展开更多
An optical cross connection network which adopts coarse wavelength division multiplexing (CWDM) and data packet is introduced. It can be used to realize communication between multi-CPU and multi-MEM in parallel comput...An optical cross connection network which adopts coarse wavelength division multiplexing (CWDM) and data packet is introduced. It can be used to realize communication between multi-CPU and multi-MEM in parallel computing system. It provides an effective way to upgrade the capability of parallel computer by combining optical wavelength division multiplexing (WDM) and data packet switching technology. CWDM used in network construction, optical cross connection (OXC) based on optical switch arrays, and data packet format used in network construction were analyzed. We have also done the optimizing analysis of the number of optical switches needed in different scales of network in this paper. The architecture of the optical interconnection for 8 wavelength channels and 128 bits parallel transmission has been researched. Finally, a parallel transmission system with 4 nodes, 8 channels per node, has been designed.展开更多
文摘Analysis approach and formulas for the transmission properties of uniform multicon-ductor interconnecting buses in high-speed integrated circuits are presented in this article. And further, by using a network approach, a tapered bus system can be analyzed as a set of cascaded uniform buses with slightly different strip widths. Obtained results are in good agreement with the experimental data.
文摘构建数据中心加速服务的软硬件系统级原型平台,需要考虑高计算能力、扩展性、灵活性和低成本等因素.为了提高数据中心的能力,从软硬件协同的角度研究数据中心异构计算在云平台架构、硬件实现、高速互连和应用等方面的创新,研究设计并构建了一个可重构组合的软硬件加速原型系统,简化了现有以处理器为中心的系统级计算平台构建方法,实现目标软硬件设计的快速部署与系统级原型验证.针对以上目标,通过解耦的可重构架构设备虚拟化和远程映射等方法,发掘独立计算单元的潜力,构建了一套ISOF(independent system of FPGA(field programmable gate arrays))软硬件计算平台系统,可使其超越普通服务器设计所能提供的能力,实现计算单元低成本高效扩展,使客户端可灵活使用外设资源,并且为满足系统级通信挑战,设计了一套计算单元之间的通信硬件平台和交互机制.此外,为提升软硬件系统级平台的敏捷性,ISOF提供了灵活统一的调用接口.最后,通过对平台目标系统级的分析评估,验证了该平台在满足了当下计算与加速需求下,保证了高速、低延时的通信,以及良好的吞吐率和弹性扩容效率,另外在高速通信的基础上改进的拥塞避免和丢包恢复机制,满足了数据中心规模通信的稳定性需求.
文摘An optical cross connection network which adopts coarse wavelength division multiplexing (CWDM) and data packet is introduced. It can be used to realize communication between multi-CPU and multi-MEM in parallel computing system. It provides an effective way to upgrade the capability of parallel computer by combining optical wavelength division multiplexing (WDM) and data packet switching technology. CWDM used in network construction, optical cross connection (OXC) based on optical switch arrays, and data packet format used in network construction were analyzed. We have also done the optimizing analysis of the number of optical switches needed in different scales of network in this paper. The architecture of the optical interconnection for 8 wavelength channels and 128 bits parallel transmission has been researched. Finally, a parallel transmission system with 4 nodes, 8 channels per node, has been designed.
