A new load distribution strategy for linear network with communication delays

  • Authors:
  • S. Suresh;V. Mani;S. N. Omkar;H. J. Kim;N. Sundararajan

  • Affiliations:
  • School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore;Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India;Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India;Center for Information and Security Technologies, Korea University, Seoul, Republic of Korea;School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore

  • Venue:
  • Mathematics and Computers in Simulation
  • Year:
  • 2009

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Abstract

In this paper, we propose a new load distribution strategy called 'send-and-receive' for scheduling divisible loads, in a linear network of processors with communication delay. This strategy is designed to optimally utilize the network resources and thereby minimizes the processing time of entire processing load. A closed-form expression for optimal size of load fractions and processing time are derived when the processing load originates at processor located in boundary and interior of the network. A condition on processor and link speed is also derived to ensure that the processors are continuously engaged in load distributions. This paper also presents a parallel implementation of 'digital watermarking problem' on a personal computer-based Pentium Linear Network (PLN) topology. Experiments are carried out to study the performance of the proposed strategy and results are compared with other strategies found in literature.