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A fault-tolerant distributed subcube management scheme for hypercube multicomputer systems

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2 Author(s)
Chen, Y.-L. ; Dept. of Comput. Sci., Texas A&M Univ., College Station, TX, USA ; Jyh-Charn Liu

This paper proposes a fault-tolerant distributed subcube management scheme for hypercube multicomputer systems. Gracefully degradable subcube management is supported by a data structure, called the distributed subcube table (DST), and a fault-tolerant broadcast protocol, called the reliably synchronized broadcast (RSB). In an n-dimensional hypercube, DST is the collection of 2n local subcube tables (LSTs), DST={LST0, LST, ..., LST2-1 n}, where LST, is a bit-mapped table assigned to Nx, a fault-free node whose address is x. LSTx, ∀x, is n+1 bits long, and it records the status (free/busy) of certain subcubes adjacent to Nx. The RSB diagnoses and avoids faults during interprocessor communication to prevent faulty nodes from being allocated for job execution. In addition to possessing a fault-tolerant design, our scheme can also achieve comparable or better performance than existing centralized schemes, as verified by extensive simulation

Published in:

Parallel and Distributed Systems, IEEE Transactions on  (Volume:6 ,  Issue: 7 )

Date of Publication:

Jul 1995

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