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Cubic Ring Networks: A Polymorphic Topology for Network-on-Chip

Bilal Zafar, Jeff Draper, Timothy M. Pinkston
2010 2010 39th International Conference on Parallel Processing  
In this work, we make the case for a polymorphic topology, called Cubic Ring (cRing), that allows dynamically turning off over 30% of resources in a 2D network (and more in higher dimensional networks)  ...  Studies have shown that on-chip networks can consume up to 36% of the total chip power, while analysis of network traffic reveals that for extended periods of execution time, network load is well below  ...  ACKNOWLEDGMENT The research described in this paper was supported, in part, by National Science Foundation (NSF) grants CCF-0541417 and CCF-0836759.  ... 
doi:10.1109/icpp.2010.52 dblp:conf/icpp/ZafarDP10 fatcat:evwi7sfelzarfg6limxkcfibci

Cost-Efficient On-Chip Routing Implementations for CMP and MPSoC Systems

Samuel Rodrigo, Jose Flich, Antoni Roca, Simone Medardoni, Davide Bertozzi, Jesus Camacho, Federico Silla, Jose Duato
2011 IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  
This paper presents universal logic-based distributed routing (uLBDR), an efficient logic-based mechanism that adapts to any irregular topology derived from 2-D meshes, instead of using routing tables.  ...  The high-performance computing domain is enriching with the inclusion of networks-on-chip (NoCs) as a key component of many-core (CMPs or MPSoCs) architectures.  ...  However, even if the design of a chip with a 2-D mesh network is correct, the on-chip network may face new challenges leading to non-regular heterogeneous topologies.  ... 
doi:10.1109/tcad.2011.2119150 fatcat:reukwwop3fcnppdyau3i2tblyi

Leaving One Slot Empty: Flit Bubble Flow Control for Torus Cache-Coherent NoCs

Sheng Ma, Zhiying Wang, Zonglin Liu Liu, Natalie Enright Jerger
2015 IEEE transactions on computers  
We propose flit bubble flow control (FBFC), which maintains one free flit-size buffer slot to avoid deadlock. FBFC uses one VC, and does not treat short packets as long ones.  ...  The gains increase in larger networks; they are 107.2% and 40.1% in an 8×8 torus. FBFC achieves an average 13.0% speedup over LBS for PARSEC workloads.  ...  By configuring a ring in the network, FBFC can support both the unicast and multicast for streaming applications [3] . Also, FBFC can support fully adaptive routing [11] , [49] .  ... 
doi:10.1109/tc.2013.2295523 fatcat:gtlcmsgftjcjtnqrz2btntmgdu

A routing methodology for achieving fault tolerance in direct networks

M.E. Gomez, N.A. Nordbotten, J. Flich, P. Lopez, A. Robles, J. Duato, T. Skeie, O. Lysne
2006 IEEE transactions on computers  
Fully adaptive routing is used along both subpaths. The methodology assumes a static fault model and the use of a checkpoint/restart mechanism.  ...  Specifically, we propose disabling adaptive routing and/or using misrouting on a per-packet basis. We also propose the use of more than one intermediate node for some paths.  ...  ACKNOWLEDGMENTS This work was supported by the Spanish MCYT under Grant TIC2003-08154-C06-01.  ... 
doi:10.1109/tc.2006.46 fatcat:l6hrjtkn7bej5nkiuwybynrtbq

A framework for designing deadlock-free wormhole routing algorithms

R.V. Boppana, S. Chalasani
1996 IEEE Transactions on Parallel and Distributed Systems  
The hop-based wormhole algorithms can be applied to a variety of networks including torus, mesh, de Brujin, and a class of Cayley networks, with the best known bounds on virtual channels for minimal routing  ...  This paper presents a framework to design fully-adaptive, deadlock-free wormhole algorithms for a variety of network topologies.  ...  Raghavendra and D.K. Panda for many discussions and conmenits on an earlier draft of this paper, Prof. Ram C. Tripathi for discussions on the convergence criteria, and Mr.  ... 
doi:10.1109/71.485506 fatcat:hedproogcrhizm6cmhh3zdq4oa

SpiNNaker: Enhanced multicast routing

Javier Navaridas, Mikel Luján, Luis A. Plana, Steve Temple, Steve B. Furber
2015 Parallel Computing  
Any system designed to simulate large-scale spiking neuronal networks needs to support such connectivity and the associated communication traffic in the form of spike events.  ...  The proposed algorithms exploit the regularity of the two-dimensional triangular torus topology and the availability of selective multicast at hardware level.  ...  Acknowledgements The SpiNNaker project is supported by the UK Engineering and Physical Sciences Research Council (EPSRC), through Grant EP/G015740/1, and also by ARM.  ... 
doi:10.1016/j.parco.2015.01.002 fatcat:drurcdttwvd7rjqdrwl3zymcwy

Blue Gene/L torus interconnection network

N. R. Adiga, M. A. Blumrich, D. Chen, P. Coteus, A. Gara, M. E. Giampapa, P. Heidelberger, S. Singh, B. D. Steinmacher-Burow, T. Takken, M. Tsao, P. Vranas
2005 IBM Journal of Research and Development  
The main interconnect of the massively parallel Blue Genet/L is a three-dimensional torus network with dynamic virtual cut-through routing.  ...  This paper describes both the architecture and the microarchitecture of the torus and a network performance simulator. Both simulation results and hardware measurements are presented.  ...  The Blue Gene/L project has been supported and partially funded by the Lawrence Livermore National Laboratory on behalf of the United States Department of Energy under Lawrence Livermore National Laboratory  ... 
doi:10.1147/rd.492.0265 fatcat:pvqahjvxcbdfhhjvuyakxoiaxm

Design space exploration of on-chip ring interconnection for a CPU–GPU heterogeneous architecture

Jaekyu Lee, Si Li, Hyesoon Kim, Sudhakar Yalamanchili
2013 Journal of Parallel and Distributed Computing  
In these architectures, various on-chip resources are shared by CPU and GPU cores, including the last-level cache, memory controllers, and DRAM.  ...  h i g h l i g h t s • We study the possible problems and design space exploration of the on-chip network in CPU-GPU heterogeneous architecture. • We examine different placements for the component (CPU,  ...  Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect those of NSF or Sandia Lab.  ... 
doi:10.1016/j.jpdc.2013.07.014 fatcat:ydzy4iyjyvddlmzsadqd4ym2g4

Interpreting Assays with Control Flow on Digital Microfluidic Biochips

Daniel Grissom, Christopher Curtis, Philip Brisk
2014 ACM Journal on Emerging Technologies in Computing Systems  
To date, prior compilers targeting similar EWoD devices are limited to assays specified as directed acyclic graphs (DAGs) and cannot handle arbitrary control flow or feedback from the LoC.  ...  The simulator mimics the behavior of laboratories-on-a-chip (LoCs) based on a droplet actuation technology called electrowetting on dielectric (EWoD).  ...  The approach taken here is to adapt deadlock-free 2D mesh network routing algorithms [Dally and Towles 24:6 D. Grissom et al. Fig. 7 .  ... 
doi:10.1145/2567669 fatcat:3dmcikfr5rgbbbvcrlmzir4ow4

Simulating and evaluating interconnection networks with INSEE

Javier Navaridas, Jose Miguel-Alonso, Jose A. Pascual, Francisco J. Ridruejo
2011 Simulation modelling practice and theory  
The router models and topologies implemented in FSIN are included in this description. Likewise, the available methods to generate traffic are described thoroughly.  ...  This paper describes INSEE, a simulation framework developed at the University of the Basque Country. INSEE is designed to carry out performance-related studies of interconnection networks.  ...  Acknowledgements This work has been supported by the Ministry of Education and Science (Spain), Grant TIN2007-68023-C02-02, and by Grant IT-242-07 from the Basque Government. Dr.  ... 
doi:10.1016/j.simpat.2010.08.008 fatcat:zhimlng6mjgjtkbic2dtixwc24

Induced homomorphism: Kirchhoff's law in photonics

Shuai Sun, Mario Miscuglio, Xiaoxuan Ma, Zhizhen Ma, Chen Shen, Engin Kayraklioglu, Jeffery Anderson, Tarek El Ghazawi, Volker J. Sorger
2021 Nanophotonics  
Our photonic engine can provide a route to achieve chip-scale, fast (10 s of ps), and integrable reprogrammable accelerators for the next generation hybrid high-performance computing.  ...  We introduce a photonic platform capable of mimicking Kirchhoff's law in photonics and used as node of a finite difference mesh for solving partial differential equation using monochromatic light in the  ...  When multiple nodes are interconnected and arranged to generate a two-dimensional mesh, as envisioned by Anderson et al. and Sorger et al.  ... 
doi:10.1515/nanoph-2020-0655 fatcat:krkytj4ef5a2bfagrbuj7m2vu4

An Overview of the BlueGene/L Supercomputer

N.R. Adiga, G. Almasi, G.S. Almasi, Y. Aridor, R. Barik, D. Beece, R. Bellofatto, G. Bhanot, R. Bickford, M. Blumrich, A.A. Bright, J. Brunheroto (+103 others)
2002 ACM/IEEE SC 2002 Conference (SC'02)  
The machine is scheduled to be operational in the 2004-2005 time frame, at price/performance and power consumption/performance targets unobtainable with conventional architectures.  ...  This massively parallel system of 65,536 nodes is based on a new architecture that exploits system-on-a-chip technology to deliver target peak processing power of 360 teraFLOPS (trillion floating-point  ...  One of the deterministic VCs is used as a "bubble escape channel" [PGPBDI99] for the adaptive sub-network in order to guarantee deadlock freedom, and the other is reserved for high-priority packets.  ... 
doi:10.1109/sc.2002.10017 dblp:conf/sc/AdigaAA02 fatcat:b5nxrp7mubekdhfsvnlklreahy

Induced Homomorphism Kirchhoffs Law in Photonics [article]

Shuai Sun, Mario Miscuglio, Xiaoxuan Ma, Zhizhen Ma, Chen Shen, Engin Kayraklioglu, Jeffery Anderson, Tarek El Ghazawi, Volker J Sorger
2020 arXiv   pre-print
Our photonic engine can provide a route to achieve chip-scale, fast (10s of ps), and integrable reprogrammable accelerators for the next generation hybrid high performance computing.  ...  We introduce a photonic platform capable of mimicking Kirchhoffs law in photonics and used as node of a finite difference mesh for solving partial differential equation using monochromatic light in the  ...  (1), electrical resistor networks (Fig. 3A iii) can one-to-one map finite difference mesh grids.  ... 
arXiv:1911.00975v4 fatcat:w5zjahmhj5acxfjpxwulmxtaxm

Grow with the flow – observing the formation of rheotactically patterned bacterial cellulose networks

Moritz Klotz, Dardan Bajrami, Daniel Van Opdenbosch
2022 Materials Advances  
Rheotactic structures: hierarchically and anisotropically structured textiles obtained by the growth of bacterial cellulose under flow, constituting porous substrates for potential applications as e.g.  ...  Acknowledgements We thank the German Science Foundation (DFG) for funding our research via grant VA 1349/5.  ...  The microfluidic cell, shown in Fig. 2 , with its polycarbonate carrier and sealing glass on the 2 ), injected via a pressure sensor (3) and a double bubble trap (4, 5) into the microfluidic cell (8  ... 
doi:10.1039/d2ma00115b fatcat:5dqroauzgfh7bo33uufcy6syk4

3D and 4D Lithography of Untethered Microrobots

Fatemeh Rajabasadi, Lukas Schwarz, Mariana Medina-Sánchez, Oliver G. Schmidt
2021 Progress in Materials Science  
This is particularly interesting in the field of medical microrobotics as complex functions such as gentle interactions with biological samples, adaptability when moving in small capillaries, controlled  ...  In the last decades, additive manufacturing (AM), also called three-dimensional (3D) printing, has advanced micro/nano-fabrication technologies, especially in applications like lightweight engineering,  ...  Alternatively, Lee and coworkers presented a capsule-type microrobot by incorporating a mesh-cap on top of the microholder to "pick and drop" (P&D) a particle cargo, based on generating vortices within  ... 
doi:10.1016/j.pmatsci.2021.100808 fatcat:5s4fcwp53vdgfhcehq5wkro3ja
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