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Modification of a High-Level NoCModel 2.0 for Modeling Networks-on-Chip with Circulant Topologies
Authors
	Prilepko P.M.
	Romanov A.
	Lezhnev E.V.
Date of publication
	2020
DOI
	10.31114/2078-7707-2020-4-23-30
Abstract
	The process of designing a communication subsystem of networks-on-chip (NoCs) in its general form is determination of six basic characteristics of a network: topology (organization of communication between NoC elements), routing (ways to move data on the network), switching (method of transmitting data on the network), data flow control (allocation of data transmission channels in the network), buffering (method for intermediate storage of packets), arbitration (planning the use of channels and buffers). These six main characteristics, among other less important ones, create a large architectural space that defines a huge number of options for NoC organization. Classic regular topologies such as mesh, torus, and hypercube have characteristics that do not meet modern NoC requirements. Thus, it is proposed to use circulant topologies for NoC construction. In order to prove the effectiveness of the topological solutions proposed, it is necessary to develop high-level models with high speed and sufficient accuracy for NoC work simulation. In this study, due to simplicity of its structure, and to ensure the simulation of circulant topologies, a high-level NoCModel 2.0 modification was proposed. By virtue of its modular structure, the selected model provides the possibility of further modification and expansion of its capabilities. New functions for modeling circulant topologies were introduced, a routing algorithm was implemented, and a module for processing results was added. Experiments with optimal shapes of mesh and with circulant topologies having the number of generators 2 and 3 were conducted, and the correctness and usefulness of such a model for various applications was shown. Also, the results of modeling topologies showed an increase in the speed of receiving and transmitting packets when using circulant topologies compared to mesh with the same number of nodes.
Keywords
	network-on-chip, network-on-chip topology, high level modeling, routing.
Library reference
	Prilepko P.M., Romanov A., Lezhnev E.V. Modification of a High-Level NoCModel 2.0 for Modeling Networks-on-Chip with Circulant Topologies // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2020. Issue 4. P. 23-30. doi:10.31114/2078-7707-2020-4-23-30
URL of paper
	http://www.mes-conference.ru/data/year2020/pdf/D023.pdf