Reliability and path length analysis of irregular fault tolerant multistage interconnection network

  • Authors:
  • Sandeep Sharma;K. S. Kahlon;P. K. Bansal

  • Affiliations:
  • Guru Nanak Dev University, Amritsar, India;Guru Nanak Dev University, Amritsar, India;Guru Nanak Dev University, Amritsar, India

  • Venue:
  • ACM SIGARCH Computer Architecture News
  • Year:
  • 2010

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Abstract

In this paper reliability and path length analysis of irregular Multistage Interconnection Networks have been presented. We have examined FT(Four Tree)[8],MFT(Modified Four Tree)[2],NFT(New Four Tree)[4],IFT(improved Four Tree)[5],IASN(Irregular Augmented Shuffle)[14] and IIASN(Improved Irregular Augmented Shuffle)[3] networks in which the number of switches in each stage are different in numbers and also have express links[11]. Using upper and lower bounds[7][13][15] for larger networks, the reliability[9] in terms of mean time to failure of all these networks are evaluated and compared with each other. Each source is connected to destination with one or multiple paths with varying path lengths in a network. The path length analysis of all these networks is also analyzed in this paper. A path length[8] algorithm for IIASN network is also propose