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Test-Delivery Optimization in Manycore SOCs

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Date
2013-03-18
Authors
Agrawal, M
Richter, M
Chakrabarty, K
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Abstract
We present two test-data delivery optimization algorithms for system on-chip (SOC) designs with hundreds of cores, where a network-on-chip (NOC) is used as the interconnection fabric. We first present an e ective algorithm based on a subsetsum formulation to solve the test-delivery problem in NOCs with arbitrary topology that use dedicated routing. We further propose an algorithm for the important class of NOCs with grid topology and XY routing. The proposed algorithm is the first to co-optimize the number of access points, access-point locations, pin distribution to access points, and assignment of cores to access points for optimal test resource utilization of such NOCs. Testtime minimization is modeled as an NOC partitioning problem and solved with dynamic programming in polynomial time. Both the proposed methods yield high-quality results and are scalable to large SOCs with many cores. We present results on synthetic grid topology NOC-based SOCs constructed using cores from the ITC’02 benchmark, and demonstrate the scalability of our approach for two SOCs of the future, one with nearly 1,000 cores and the other with 1,600 cores. Test scheduling under power constraints is also incorporated in the optimization framework.
Type
Report
Subject
multicore ships
network-on-chip
optimization
test scheduling
Permalink
https://hdl.handle.net/10161/8404
Citation
Agrawal, M; Richter, M; & Chakrabarty, K (2013). Test-Delivery Optimization in Manycore SOCs. Retrieved from https://hdl.handle.net/10161/8404.
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Scholars@Duke

Chakrabarty

Krishnendu Chakrabarty

John Cocke Distinguished Professor of Electrical and Computer Engineering
Krishnendu Chakrabarty is the John Cocke Distinguished Professor of Electrical and Computer Engineering and Professor of Computer Science at Duke University.
This author no longer has a Scholars@Duke profile, so the information shown here reflects their Duke status at the time this item was deposited.
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