Presentation 2014-11-26
An Effective Robust Design Using Improved Checkpoint Insertion Algorithm for Suspicious Timing-Error Prediction Scheme and its Evaluations
Shinnosuke YOSHIDA, Youhua SHI, Masao YANAGISAWA, Nozomu TOGAWA,
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Abstract(in English) As process technologies advance, process and delay variation causes a complex timing design and in-situ timing error correction techniques are strongly required. Suspicious timing error prediction (STEP) predicts timing errors by monitoring checkpoints by STEP circuits (STEPCs) and how to insert checkpoints is very important. We have proposed a network-flow-based checkpoint insertion algorithm for STEP. However, our algorithm may ignore long paths and insert checkpoints near the output. In this paper, we improve how to ignore short paths and set labels by estimating path lengths. Then, we can ignore only short paths and insert checkpoints into near the center of all long paths. We evaluate our algorithm by applying it to four benchmark circuits. Experimental results show that our proposed algorithm realizes an average of 1.71X overclocking compared with just inserting no STEPC. Furthermore, our improved algorithm realizes an average of 1.15X overclocking compared with our original algorithm.
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Keyword(in English) Timing error prediction / robust design / delay variation / overclocking
Paper # VLD2014-81,DC2014-35
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Committee DC
Conference Date 2014/11/19(1days)
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Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Effective Robust Design Using Improved Checkpoint Insertion Algorithm for Suspicious Timing-Error Prediction Scheme and its Evaluations
Sub Title (in English)
Keyword(1) Timing error prediction
Keyword(2) robust design
Keyword(3) delay variation
Keyword(4) overclocking
1st Author's Name Shinnosuke YOSHIDA
1st Author's Affiliation Dept. of Conputer Science and Communications Engineering, Waseda University()
2nd Author's Name Youhua SHI
2nd Author's Affiliation Waseda Institute for Advanced Study, Waseda University
3rd Author's Name Masao YANAGISAWA
3rd Author's Affiliation Dept. of Conputer Science and Communications Engineering, Waseda University
4th Author's Name Nozomu TOGAWA
4th Author's Affiliation Dept. of Conputer Science and Communications Engineering, Waseda University
Date 2014-11-26
Paper # VLD2014-81,DC2014-35
Volume (vol) vol.114
Number (no) 329
Page pp.pp.-
#Pages 6
Date of Issue