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Optimal Direct-Connect Topologies for Collective Communications
[article]
2022
arXiv
pre-print
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We provide an algorithmic framework for constructing direct-connect topologies optimized for the latency-bandwidth tradeoff given a collective communication workload. ...
We consider the problem of distilling optimal network topologies for collective communications. ...
ACKNOWLEDGEMENTS Distribution Statement "A" (Approved for Public Release, Distribution Unlimited). ...
arXiv:2202.03356v1
fatcat:6jbfyyoejfb47nxazqnfxa4uwe
QCG-OMPI: MPI applications on grids
2011
Future generations computer systems
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connectivity techniques aiming at firewall and NAT bypassing. ...
Another problem raised by grids for communication-intensive parallel application is caused by the heterogeneity of the available networks that interconnect processes with one another. ...
Acknowledgements The authors thank Emmanuel Jeannot for the interesting discussions about collective operations, and Stephane Genaud and Marc Grunberg for their help on Ray2mesh. ...
doi:10.1016/j.future.2010.11.015
fatcat:c7wg66kyqfc37nfi7ypyybwjie
Synthesizing Optimal Collective Algorithms
[article]
2021
arXiv
pre-print
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This paper introduces SCCL (for Synthesized Collective Communication Library), a systematic approach to synthesize collective communication algorithms that are explicitly tailored to a particular hardware ...
SCCL synthesizes algorithms along the Pareto-frontier spanning from latency-optimal to bandwidth-optimal implementations of a collective. ...
We thus only model the direct connections in Figure 3 . ...
arXiv:2008.08708v2
fatcat:rtojg4fl45cqxiinadykfyi7gy
COOPERATIVE AD-HOC NETWORKS FOR ENERGY EFFICIENT IMPROVE CONNECTIVITY
2014
International Journal of Research in Engineering and Technology
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Earlier research work on topology control dealt with cooperative communication in the form of energy saving only and did not consider for extending the coverage. ...
Wireless adhoc networks are multi-hop frameworks comprising of connections among wireless nodes in the absence of any infrastructure. Thus they normally consist of unpredicted network topologies. ...
Greedy Arrangement for Adding Connections The alternative topology control algorithm starts with a sparse topology graph which is actively connected under Cooperative Communication model. ...
doi:10.15623/ijret.2014.0315050
fatcat:sysxaqzsmjaotf427wgvl7htqu
A Hybrid Algorithm for Optimal Wireless Sensor Network Deployment with the Minimum Number of Sensor Nodes
2017
Algorithms
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An optimal WSN deployment should maximize the collection of the desired interest phenomena, guarantee the required coverage and connectivity, extend the network lifetime, and minimize the network cost ...
Besides the sensing function, communication is another major function of a sensor network [6] . ...
The optimal topology was detected at iteration 6485, where 100% of collected interest is reached, while full coverage and connectivity are granted. ...
doi:10.3390/a10030080
fatcat:j3sc4zqdrzbtjpytbg6ms64gxm
Topology control of VANET based on the multi-radio in vehicle and traffic flow in road network
2017
Tehnički Vjesnik
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Preliminary communication For mobile internet network (Vehicular Ad Hoc Networks, VANET), resources allocation, transportation industry regulations and service business requirements, this paper builds ...
a stable and efficient mobile internet topology and designs multi-radio nodes in vehicle, and then raises the virtual-force oriented ant colony optimization algorithm through primal approach topology to ...
Acknowledgments We are very grateful to the editor and the anonymous referees for their valuable comments and suggestions. ...
doi:10.17559/tv-20160525163719
fatcat:76i3wtlwureubgyuitwwoejule
Optimization principles for collective neighborhood communications
2012
2012 International Conference for High Performance Computing, Networking, Storage and Analysis
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With those optimizations in place, we are able to accelerate arbitrary collective communication patterns, such as regular and irregular stencils with optimization methods for collective communications. ...
We found that, for some patterns, our optimization heuristics automatically generate communication schedules that are comparable to handtuned collectives. ...
We thank Mark Straka and Robert Gerstenberger for support with WRF. ...
doi:10.1109/sc.2012.86
dblp:conf/sc/HoeflerS12
fatcat:3i3g2rijrjay5lh7ua5miepbnq
Optimal network topology for responsive collective behavior
2019
Science Advances
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for varying topologies and system sizes. ...
Experiments with a swarm of robots reveal a nontrivial relationship between frequency of the driving signal and optimal network topology. ...
(Top left) Optimal degree k* for maximum collective response as a function of the frequency w for a system of N = 1024 arranged in different network topologies (N = 840 for the caveman topology). ...
doi:10.1126/sciadv.aau0999
fatcat:a2zkft7qkvfank3ls6looqr2ru
Topology Control in Wireless Sensor Network: An Overview
2014
International Journal of Computer Applications
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maintain the connectivity). ...
In this article, first we overview the recent topology control techniques including future directions followed by performance metrics. ...
The Computational Geometry is used to derive the optimal BS locations for mission criticality and the efficacy of topology control validates the optimality. ...
doi:10.5120/16020-5020
fatcat:d2awwyyl2vdurnshfzdalzohvu
Passing the torch: Role alternation for fair energy usage in D2D group communication
2015
2015 7th International Conference on Communication Systems and Networks (COMSNETS)
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We then determine the optimal role switching strategies for these motifs by formulating the cycle of role assignments as an optimization problem. ...
First, we analyze contact traces for their group topologies and find that four simple motifsclique, star, chain and NxM-clique -cover up to % of the aggregated lifetime of all connected groups. ...
Fig. 5 : 5 Fairness -Efficiency tradeoff for different topologies for the Wi-Fi Direct energy consumption. ...
doi:10.1109/comsnets.2015.7098689
dblp:conf/comsnets/TrifunovicHH15
fatcat:el5glt4gxnhtjjqiebk6227thm
Experimental Characterization of Home Wireless Networks and Design Implications
2006
Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications
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We provide empirical evidence suggesting that homes are challenging environments for wireless communication. ...
We show that coverage and performance can be improved using a multi-hop topology, implying that mesh capabilities may actually be needed in consumer electronics for seamless connectivity across the home ...
Next we compare the network performance in each home for the direct topology, the best AP topology, and the optimal multi-hop topology. ...
doi:10.1109/infocom.2006.293
dblp:conf/infocom/PapagiannakiYC06
fatcat:a35lsfoxsjcitbvg7duo4cqrti
High-radix on-chip networks with low-radix routers
2014
2014 IEEE/ACM International Conference on Computer-Aided Design (ICCAD)
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While high-radix routers enable a richly connected and low diameter network, low-radix routers allow for a small silicon area. ...
Network links are bound to router ports at runtime to form connected and deadlock-free topologies. ...
To optimize the topology for high-volume communication patterns, we perform the following steps: i) we collect traffic statistics over execution intervals (epochs) to predict future traffic behavior, ii ...
doi:10.1109/iccad.2014.7001365
dblp:conf/iccad/JainPB14
fatcat:3chfvjvew5gqtofzcxyko2h4mq
An Optimization Algorithm of Network Topology Discovery Based on SNMP Protocol
2018
Journal of Computer and Communications
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Through the analysis of network topology discovery algorithm used ICMP protocol and FDB address, a novel layer topology discovery and link layer topology discovery algorithm which is suitable for campus ...
This algorithm can rapidly and accurately calculate the second and third floors topology of the whole pipe network. ...
Introduction Network topology is a method which is used for expression of the network logical connection relation and the physical connection relation [1] [2] [3] . ...
doi:10.4236/jcc.2018.61011
fatcat:46ricdz4fvdk3h4gvd2rzmpxna
Study of Topology Optimization Algorithm of Wireless Mesh Backbone Networks based on Directional Antenna
2016
International Journal of Future Generation Communication and Networking
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In order to improve serious signal interference and energy consumption of wire mesh backbone network due to omni-directional antenna communication mechanism, a topology control optimization algorithm in ...
A topology control optimization algorithm in wireless mesh backbone networks based on directional antenna is presented in Section 4. ...
In the case of GW' s degrees are not limited, the GWs can be connected with all adjacent nodes which distance to GW is shortest, such that it increase the communication path of MR-GW for each node and ...
doi:10.14257/ijfgcn.2016.9.9.03
fatcat:xntchee5wvbwdab3e3cl7fjbsi
CARCC: Connectivity Autorecovering via Cooperative Communication
2017
Wireless Communications and Mobile Computing
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In this work we explore the use of cooperative communication (CC) techniques for improving network connectivity. ...
Wireless ad hoc networks are often considered an alternative for providing communication means to support urgent and temporary tasks. ...
The use of cooperative communication (CC, for short) has been considered an attractive alternative for enhancing network connectivity [7] [8] [9] [10] . ...
doi:10.1155/2017/4195908
fatcat:xnew3ha4lbfknjn3z3lcmvbr3a
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