Input Ordering in Concurrent Checkers to Reduce Power Consumption (2002)
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| Venue: | Proc. of IEEE Symposium on Defect and Fault Tolerance |
| Citations: | 9 - 2 self |
BibTeX
@INPROCEEDINGS{Mohanram02inputordering,
author = {Kartik Mohanram and Nur A. Touba},
title = {Input Ordering in Concurrent Checkers to Reduce Power Consumption},
booktitle = {Proc. of IEEE Symposium on Defect and Fault Tolerance},
year = {2002},
pages = {87--95}
}
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Abstract
A novel approach for reducing power consumption in checkers used for concurrent error detection is presented. Spatial correlations between the outputs of the circuit that drives the primary inputs of the checker are analyzed to order them such that switching activity (and hence power consumption) in the checker is minimized. The reduction in power consumption comes at no additional impact to area or performance and does not require any alteration to the design flow. Since the number of possible input orders increases exponentially in the number of inputs to the checker, the computational costs of determining the optimum order can be very expensive. We present a very effective technique to build a reduced cost function to solve the optimization problem to find a near optimal order.
