• Title/Summary/Keyword: Hamiltonian Circuit Latin Square

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Application of the Hamiltonian circuit Latin square to a Parallel Routing Algorithm on Generalized Recursive Circulant Networks

  • Choi, Dongmin;Chung, Ilyong
    • Journal of Korea Multimedia Society
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    • v.18 no.9
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    • pp.1083-1090
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    • 2015
  • A generalized recursive circulant network(GR) is widely used in the design and implementation of local area networks and parallel processing architectures. In this paper, we investigate the routing of a message on this network, that is a key to the performance of this network. We would like to transmit maximum number of packets from a source node to a destination node simultaneously along paths on this network, where the ith packet traverses along the ith path. In order for all packets to arrive at the destination node securely, the ith path must be node-disjoint from all other paths. For construction of these paths, employing the Hamiltonian Circuit Latin Square(HCLS), a special class of (n x n) matrices, we present O(n2) parallel routing algorithm on generalized recursive circulant networks.

The Design of Parallel Routing Algorithm on a Recursive Circulant Network (재귀원형군에서 병렬 경로 알고리즘의 설계)

  • Bae, Yong-Keun;Park, Byung-Kwon;Chung, Il-Yong
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.11
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    • pp.2701-2710
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    • 1997
  • Recursive circulant graph has recently developed as a new model of multiprocessors, and drawn considerable attention to supercomputing, In this paper, we investigate the routing of a message i recursive circulant, that is a key to the performance of this network. On recursive circulant network, we would like to transmit m packets from a source node to a destination node simultaneously along paths, where the ith packet will traverse along the ith path $(o{\leq}i{\leq}m-1)$. In oder for all packets to arrive at the destination node quickly and securely, the ith path must be node-disjoint from all other paths. For construction of these paths, employing the Hamiltonian Circuit Latin Square(HCLS), a special class of $(n{\times}n)$ matrices, we present $O(n^2)$ parallel routing algorithm on recursive circulant network.

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Application of the Special Matrices to the Parallel Routing Algorithm on MR NS Network (MRNS 네트워크에서 특수한 메트릭스를 응용한 병렬 경로배정 알고리즘)

  • Choe, Wan-Gyu;Jeong, Il-Yong
    • The Transactions of the Korea Information Processing Society
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    • v.3 no.1
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    • pp.55-62
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    • 1996
  • MRNS network is a general algebraic structure of Hypercube network which has recently drawn considerable attention to supercomputing and message-passing communication. In this paper, we investigate the routing of a message in an n- dimensional MRNS network that is a key to the performance of this network. On the n-dimensional MRNS network we would like to transmit packets from a source node to a destination node simultaneously along a fixed number of paths, where the superscript packet will traverse along the superscript path. In order for all packets to arrive at the destination node quickly and securely, the ith path must be node-disjoint from all other paths. By investigating the conditions of node-disjoint paths, we will employ the special matrices called as the Hamiltonian Circuit Latin Square(HCLS) described in 〔1〕to construct a set of node-disjoint paths and suggest a linear-time parallel routing algorithm for the MRNS network.

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An Analysis of the Secret Routing Algorithm for Secure Communications (안전한 통신을 위한 비밀 경로 알고리즘의 분석)

  • Yongkeun Bae;Ilyong Chung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.7 no.3
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    • pp.105-116
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    • 1997
  • Routing security is related to the confidentiality of the route taken by the data transmitted over the network. If the route is detected by the adversary, the probability is higher that the data are lost or the data can be intercepted by the adversary. Therefore, the route must be protected. To accomplish this, we select an intermediate node secretly and transmit the data using this intermediate node, instead of sending the data to the destination node using the shortest path. Furthermore, if we use a number of secret routes from the starting node to the destination node, data security is much stronger since we can transmit partial data rather than the entire data along a secret route. In this paper, the routing algorithm for multiple secret paths on MRNS(Mixed Radix Number System) Network, which requires O(1) for the time complexity where is the number of links on a node, is presented employing the HCLS(Hamiltonian Circuit Latin Square) and is analyzed in terms of entropy.