Design Of High Performance Reconfigurable Routers Using Fpga

2017

This paper presents the Reconfigurable Router Technique in Network On Chip architecture which is specifically optimized transistor scaling uses step by step complex automatic plans to integrated chip (IC) design. The expansive variety of transistors on hand today empowers the development of chip multiprocessors that contain several on-chips interconnects. For an instance network on-chip (NoCs), have turned out to be significant mainstream and information in the network during end to end transmission depends on congestion control. Though several algorithms focused on network congestion we have concentrate on optimizing buffer through reconfigurable architecture. Throughout the larger buffer improve the performance of the architecture which in turn consumes more area and delay. In this paper we recommend the utilization of a switch, where the aid openings are powerfully distributed to construct switch productiveness in a NoC, even beneath as an alternative particular correspondence lo...

Computing Research Repository - CORR, 2010

Networks on Chip is a recent solution paradigm adopted to increase the performance of Multicore designs. The key idea is to interconnect various computation modules (IP cores) in a network fashion and transport packets simultaneously across them, thereby gaining performance. In addition to improving performance by having multiple packets in flight, NoCs also present a host of other advantages including scalability, power efficiency, and component reuse through modular design. This work focuses on design and development of high performance communication architectures for FPGAs using NoCs Once completely developed, the above methodology could be used to augment the current FPGA design flow for implementing multicore SoC applications. We design and implement an NoC framework for FPGAs, MultiClock OnChip Network for Reconfigurable Systems (MoCReS). We propose a novel microarchitecture for a hybrid two layer router that supports both packetswitched communications, across its local and di...

2015

Network-On-Chip (NoC) is becoming the backbone of System on chip (SoC) architecture and router is the heart of an NOC architecture. This paper explores FPGA implementation of First Virtual Output Queue based Routers. The implementation is obtained through VHDL coding of router blocks in behavioral fashion which are later connected in structural style to get the complete router. In Virtual Output Queue based router the buffer implemented for virtual channel is in the form of Virtual Output Queue memory that provides low latency to the packets traversing the router. Major components of proposed routers are Input Port, allocators and crossbar switch. After implementation of router different NOC topologies namely ring, mesh and binary tree are carried out with respect to two parameters, Area and Delay and is presented with the help of "Xilinx ISE-13.1" software tool .

International Journal of Reconfigurable and Embedded Systems (IJRES), 2012

New Field Programmable Gate Arrays (FPGAs) are capable of implementing complete multi-core System-on-Chip (SoC) with the possibility of modifying the hardware configuration at run-time with partial dynamic reconfiguration. The usage of a soft reconfigurable Network-on-Chip (NoC) to connect these cores is investigated in this paper. We have used a standard switch developed with the objective of supporting dynamically reconfigurable FPGAs as the starting point to create a novel configurable router. The configurable router uses distributed routing suitable for regular topologies and can vary the number of local ports and communication ports to build multi dimensional networks (i.e., 2D and 3D) with different topologies. The evaluation results show that the selection of the ideal router is different depending on traffic patterns and design objectives. Overall, the mesh network with a four local ports router offers a higher level of performance with lower complexity compared to the traditional mesh with one local port router.

Eighth International Multi-Conference on Systems, Signals & Devices, 2011

Network on Chip is an efficient on-chip communication architecture for SoC architectures. It enables the integration of a large number of computational and storage blocks on a single chip. The router is the basic element of NoC with multiple, connecting to other router and to a local IP core. This router architecture can be used later for building a NoC with standard or arbitrary topology with low latency and high speed and High maximal peak performance. The low latency and high speed is achieved by allowing for each input port a routing function which runs in parallel with Link controler and with distributed arbiters. To evaluate our approach, A wormhole input queued 2-D mesh router was created to verify the capability of our router. Various parameterized designs were synthesized to provide a comparative study with other implementations in FPGA thechnology, with different flit size.

Multiprocessor system on chip (SOC) has emerged as a new trend for system on chip design but the wire and power design constraints are forcing to adopt new designs methodologies. Researchers has pursued a solutions to this problem i.e. Network on Chip (NOC). Network on chip is a communication system on an integrated circuits, typically between intellectual property (IP) cores in a system on a chip.[1] Network on chip architecture better supports the integration of SOC consists of on chip packet switched networks. We has developed a Router a packet based protocol. In this Router we have taken functionality references from an actual Router the design is being implemented on single chip using Verilog code.

Proceedings. 2003 International Symposium on System-on-Chip (IEEE Cat. No.03EX748), 2003

An efficient methodology for building the billiontransistors systems on chip of tomorrow is a necessity. Networks on chip promise to be the solution for the numerous technological, economical and productivity problems. We believe that different types of networks will be required for each application domains. Our approach therefore is to have a very flexible network design, highly scalable, that allows to easily accommodate the various needs. This paper presents the design of our network on chip, which is part of the platform we are developing for reconfigurable systems. The present design allows us to instantiate arbitrary network topologies, has a low latency and a high throughput.

Abstract: - As innovation shrink, the force scattered by the connections of a network-on-chip (NoC) begins to imitate with the force dispersed by alternate components like as switches and the network interfaces (NIs).In this venture Cartesian switch is outlined keeping in mind the end goal to diminish the force dissipation. Cartesian switch is a composite of gatherer and arterials. A gatherer is a 'horizontal network' connecting authority switches, while a blood vessel is a 'vertical network' that divide gatherers. Authority switches has an east and a west port, connecting the switch to its gatherer, while blood vessel switches have sufficient ports to permit connection to its authorities and its arterials. To guarantee connectivity, a blood vessel is not allowed to diversion a gatherer. Every switch is given a location that indicate its location in Cartesian space (spoke to, for instance, utilizing scope and longitude); inside an authority, all gatherer switches offer common scope. At last we choose that the port transition of double information between the ports are proficient in NOC application for exchange the information rates in effective way and it additionally lessened Area of the switch. At long last the Cartesian switch will be actualized by utilizing FPGA Kit.

2007 Design, Automation & Test in Europe Conference & Exhibition, 2007

Multi-Processor System on Chip (MPSoC) platforms are becoming increasingly more heterogeneous and are shifting towards a more communication-centric methodology. Networks on Chip (NoC) have emerged as the design paradigm for scalable on-chip communication architectures. As the system complexity grows, the problem emerges as how to design and instantiate such a NoC-based MPSoC platform in a systematic and automated way. In this paper we present an integrated flow to automatically generate a highly configurable NoC-based MPSoC for FPGA instantiation. The system specification is done on a high level of abstraction, relieving the designer of errorprone and time consuming work. The flow uses the state-ofthe-art AEthereal NoC, and Silicon Hive processing cores, both configurable at design-and run-time. We use this flow to generate a range of sample designs whose functionality has been verified on a Celoxica RC300E development board. The board, equipped with a Xilinx Virtex II 6000, also offers a huge number of peripherals, and we show how their insertion is automated in the design for easy debugging and prototyping. Design-time Configurable Per core Memory Size-Program and Data # and type of interfaces e.g. 2×DTL # of issue slots (ILP degree) Custom operations Register file size and width Network Topology Max buffer sizes for all use cases Max # connections per port Size of slot table System-level Cores used and connection to NoC Peripherals used e.g. video, ethernet Communication Protocol (e.g. MMIO) Run-time Reconfigurable Per core Memory Contents-Program and Data Mode of operation e.g. breakpoint Base addresses Network Configuration of available connections Type and bandwidth of each connection Address map for narrowcast interfaces System-level Address map of the system Table 1. Example of configurable properties

IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2000

Multi-FPGA systems (MFSs) are used as custom computing machines, logic emulators and rapid prototyping vehicles. A key aspect of these systems is their programmable routing architecture which is the manner in which wires, FPGAs and Field-Programmable Interconnect Devices (FPIDs) are connected. Several routing architectures for MFSs have been proposed and previous research has shown that the partial crossbar is one of the best existing architectures [Kim96] [Khal97]. In this paper we propose a new routing architecture, called the Hybrid Complete-Graph and Partial-Crossbar (HCGP) which has superior speed and cost compared to a partial crossbar. The new architecture uses both hardwired and programmable connections between the FPGAs. We compare the performance and cost of the HCGP and partial crossbar architectures experimentally, by mapping a set of 15 large benchmark circuits into each architecture. A customized set of partitioning and inter-chip routing tools were developed, with particular attention paid to architecture-appropriate inter-chip routing algorithms. We show that the cost of the partial crossbar (as measured by the number of pins on all FPGAs and FPIDs required to fit a design), is on average 20% more than the new HCGP architecture and as much as 25% more. Furthermore, the critical path delay for designs implemented on the partial crossbar were on average 20% more than the HCGP architecture and up to 43% more. Using our experimental approach, we also explore a key architecture parameter associated with the HCGP architecture: the proportion of hard-wired connections versus programmable connections, to determine its best value.