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2016 International Conference on Parallel Architecture and Compilation Techniques (PACT) (2016)
Haifa, Israel
Sept. 11, 2016 to Sept. 15, 2016
ISBN: 978-1-5090-5308-7
pp: 413-414
Rahul Boyapati , Department of Computer Science and Engineering, Texas A&M University, United States of America
Jiayi Huang , Department of Computer Science and Engineering, Texas A&M University, United States of America
Ningyuan Wang , Google Inc., United States of America
Kyung Hoon Kim , Department of Computer Science and Engineering, Texas A&M University, United States of America
Ki Hwan Yum , Department of Computer Science and Engineering, Texas A&M University, United States of America
Eun Jung Kim , Department of Computer Science and Engineering, Texas A&M University, United States of America
ABSTRACT
Reducing static NoC power consumption is becoming critical for energy-efficient computing as technology scales down since NoCs are devouring a large fraction of the on-chip power budget. We propose Fly-Over (FLOV), a light-weight distributed mechanism for power-gating routers. With simple modifications to the baseline router architecture, FLOV links are facilitated over power-gated routers. A Handshake protocol that allows seamless router power-gating in addition to a dynamic routing algorithm, that provides best-effort minimal path without the necessity for global network information, maintain normal NoC functionality. We evaluate our schemes using synthetic workloads as well as real workloads from PARSEC 2.1 benchmark suite. The results show that FLOV can achieve on average 19.2% latency reduction and 15.9% total energy savings.
INDEX TERMS
Pipelines, Benchmark testing, Turning, Routing
CITATION
Rahul Boyapati, Jiayi Huang, Ningyuan Wang, Kyung Hoon Kim, Ki Hwan Yum, Eun Jung Kim, "POSTER: Fly-Over: A light-weight distributed power-gating mechanism for energy-efficient networks-on-chip", 2016 International Conference on Parallel Architecture and Compilation Techniques (PACT), vol. 00, no. , pp. 413-414, 2016, doi:10.1145/2967938.2974058
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