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Pre-placement of VLSI blocks through learning neural networks

Published: 12 March 1990 Publication History

Abstract

This paper presents a new neural network approach to the pre-placement of VLSI blocks. Our innovation consists in considering the pre-placement problem as a classification problem, and in implementing a neural network learning algorithm, derived from Kohonen maps, to accomplish this task. The neural network has been simulated and the results have been compared with those obtained from a classical min-cut algorithm. The comparison shows as our technique offers comparable quality of solutions, but presents a more favourable computational complexity.

References

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A. Sangiovanni-Vincentelli, "Automatic Layout of Integrated Circuits", in Design System for VLSI Circuits, M. Nijhoff Publs., 1987.
[2]
B. W. Kernighan, S. Lin, "An efficient heuristic procedure for partitioning graphs", Bell Sysyem Technical Journal, vol. 49, pp. 291--307, Feb. 1970.
[3]
M. Breuer, "Min-cut Placement", J. Des. Automat. Fault Tolerant Comput., pp. 343--362, Oct. 1977.
[4]
D. E. Rumelhart, G. Hinton, R. Williams, "Parallel Distributed Processing (Chap.8)", MIT Press, Cambridge, MA, 1986.
[5]
R. P. Lippmann, "An Introduction to Computing with Neural Nets", IEEE ASSP Magazine, Vol. 4, pp. 4--22, 1987.
[6]
S. Grossberg, "Nonlinear Neural Networks: Principles, Mechanisms, and Architectures", Neural Networks, Vol. 1--1, pp. 17--61, 1988.
[7]
T. Kohonen, Self-Organization and associative memory (2nd Edition), Springer-Verlag, Berlin, 1988.
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J. J. Hopfield, D. W. Tank, "Neural Computation of Decisions in Optimization Problems", Biol. Cybern., Vol. 52, pp. 141--152, 1985.
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D. D. Caviglia, G. M. Bisio, F. Curatelli, L. Raffo, L. Giovannacci, "Neural Algorithms for Cell Placement in VLSI design", Proc. IJCNN, pp. I/573-580, Washington D.C., June 1989.
[10]
J. S. Yih, P. Mazumder, "A Neural Network Design for Circuit Partitioning", Proc. 26th DAC, pp. 406--411, Las Vegas, June 1989.
[11]
P. Peretto, "On the Dynamics of Memorization Processes", Neural Networks, Vol. 1--4, pp. 309--322, 1988.
[12]
H. Ritter, K. Schulten, "Convergence properties of Kohonen's topology conserving maps: fluctuations, stability and dimension selection", Biological Cybernetics, 60, pp. 59--71, 1988.

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Information & Contributors

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Published In

cover image ACM Conferences
EURO-DAC '90: Proceedings of the conference on European design automation
March 1990
659 pages
ISBN:0818620242
  • General Chair:
  • Gordon Adshead,
  • Program Chair:
  • Jochen Jess

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IEEE Computer Society Press

Washington, DC, United States

Publication History

Published: 12 March 1990

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Author Tags

  1. Neural Net Models
  2. Optimization Techniques
  3. Placement

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