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Simultaneous scheduling and allocation for cost constrained optimal architectural synthesis

Published: 01 June 1991 Publication History

Abstract

An integer programming (IP) model, which simultaneously schedules and allocates functional units, registers, and busses, is presented for synthesizing cost-constrained globally optimal architectures. This research is important for industry by providing optimal schedules which minimize interconnect costs and interface to analog and asynchronous processes, since these are seen as key to synthesizing high performance architectures. A partially structured tight IP formulation of the architectural synthesis problem provides globally optimal schedules for peicewise linear cost functions, using branch and bound, in execution times faster than previous research. This research breaks new ground by 1. simultaneously scheduling and allocating hardware resources including interconnect, 2. support for asynchronous and analog interfaces, and 3. guaranteeing globally optimal solutions in practical execution times.

References

[1]
P. G. Paulin, "Force Directed Scheduling," IEEE Transactions on CAD, pp. 661-679 (1989).
[2]
J. Lee, Y. Hsu, and Y. Lift, "A New Integer Linear Programming Formulation for the Scheduling Problem in Data Path Synthesis," ICCAD, (1989).
[3]
L. Haler and A. Parker, "A Formal Method for the Specification, Analysis, and Design of Register- Transfer Level Digital Logic," IEEE Transactions on CAD, (1983).
[4]
S. Devadas and A. R. Newton, "Algorithms for Hardware Allocation in Data Path Synthesis," IEEE Transactions on CAD, (1989).
[5]
Nemhauser and Wolsey, "," in Integer and Combinatorial Optimization, Wiley Interscience (1989).
[6]
C. H. Gebotys and M. I. Elmasry, "A Global Optimization Approach for Architectural Synthesis~" ICCAD, (Nov 1990).
[7]
C. H. Gebotys and M. I. Elmasry, "Optimal Synthesis of High Performance Architectures," CICC, (M~y 1991).
[8]
K. R. Baker, "Introduction to Sequencing and Scheduling," John Wiley g_i Sons, (1974).
[9]
C. H. Gebotys and M. I. Elmasry, "A Global Optimization Approach for Architectural Synthesis," UW//ICR TechRept, (1991).
[10]
E.D. Lagnese, "Architectural Partitioning for Systems Level Design of Integrated Circuits," CMUCAD-89-f27, PhD Thesis, (Mar 1989).
[11]
A. Brooke, D. Kendricke, and A. Meeraus, GAMS Users Manual, Scientific Press (1988).

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cover image ACM Conferences
DAC '91: Proceedings of the 28th ACM/IEEE Design Automation Conference
June 1991
783 pages
ISBN:0897913957
DOI:10.1145/127601
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 01 June 1991

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DAC91: The 28th ACM/IEEE Design Automation Conference
June 17 - 22, 1991
California, San Francisco, USA

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