Enhanced Cluster k-Ary n-Cube, A Fault-Tolerant Multiprocessor
IEEE Transactions on Computers
An efficient reconfiguration scheme for fault-tolerant meshes
Information Sciences—Informatics and Computer Science: An International Journal
Integrated Row and Column Rerouting for Reconfiguration of VLSI Arrays with Four-Port Switches
IEEE Transactions on Computers
An efficient reconfiguration scheme for fault-tolerant meshes
Information Sciences: an International Journal
The survivability of design-specific spare placement in FPGA architectures with high defect rates
ACM Transactions on Design Automation of Electronic Systems (TODAES)
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This paper proposes an advanced reconfiguration scheme using row-column bypassing and direct replacement for two-dimensional mesh-connected processing-node arrays that makes an array usable for massively parallel computingand stand-alone computing in an efficient dividedmanner. This scheme uses an array providing a switching circuit in every node for row-column by-passing and a simple bypass network with a tree structure allocated to the array by graph-node coloring with a minimum inter-node distance of three for direct replacement. It can reconfigure a subarray with a regular matrix of free nodes usable for parallel computing in the array while allowing a small delay in the meshconnections but maintaining a communication path from every busy node being used as stand-alone computing to the outside of the array. The direct replacement is used for substitution of busy nodes which are not covered by row-column bypassing with free nodes locatedin the rows or columns to be bypassed, helping to enlarge the size of the reconfigured subarray. The bypass allocation with a minimum distance of three enables distributed communications and simple routing in the array while attaining a large success probability of the direct replacement. The proposed scheme is advantageous for constructing fault-tolerant massively parallel systems by using personal computers or workstations as processing nodes and Ethernet devices for interconnections.