On the optimal reconfiguration of multipipeline arrays in the presence of faulty processing and switching elements

Author

Lin, H. ; Lombardi, F. ; Lu, M.

Author_Institution

Texas A&M Univ., College Station, TX, USA

Volume

1

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

76

Lastpage

79

Abstract

The reconfiguration of multipipeline arrays in the presence of both faulty processing elements (PEs) and switching elements (SEs) is addressed. Different fault models are used for the PEs and SEs: a PE can be either fault free or faulty; a SE is modeled using a novel functional approach which relates its switching capabilities to its status. This permits a PE to retain a partial functionality in the presence of a fault. An appropriate transformation of the multipipeline array reconfiguration problem to a maximum flow problem is then presented. The conditions under which this transformation is possible, are fully analyzed. A reconfiguration algorithm based on the maximum flow algorithm is presented; the proposed algorithm is optimal as the number of reconfigured pipelines is maximized.<>

Keywords

fault tolerant computing; pipeline processing; faulty processing elements; faulty switching elements; maximum flow problem; multipipeline array reconfiguration problem; optimal reconfiguration; reconfiguration algorithm; Algorithm design and analysis; Fault tolerance; Heuristic algorithms; Manufacturing processes; Pipelines; Routing; Semiconductor device modeling; Supercomputers; Switches; Very large scale integration;

fLanguage

English

Journal_Title

Very Large Scale Integration (VLSI) Systems, IEEE Transactions on

Publisher

ieee

ISSN

1063-8210

Type

jour

DOI

10.1109/92.219910

Filename

219910