Paper Info
Title
b-HiVE: a bit-level history-based error model with value correlation for voltage-scaled integer and floating point units
Abstract
Existing timing error models for voltage-scaled functional units ignore the effect of history and correlation among outputs, and the variation in the error behavior at different bit locations. We propose b-HiVE, a model for voltage-scaling-induced timing errors that incorporates these attributes and demonstrates their impact on the overall model accuracy. On average across several operations, b-HiVE's estimation is within 1--3% of comprehensive analog simulations, which corresponds to 5--17x higher accuracy (6--10x on average) than error models currently used in approximate computing research. To the best of our knowledge, we present the first bit-level error models of arithmetic units, and the first error models for voltage scaling of bitwise logic operations and floating-point units.
Year
DOI
Venue
2015
10.1145/2744769.2744805
DAC
Keywords
Field
DocType
Approximate Computing, Voltage Scaling, Error Modeling
Integer,Bitwise operation,Computer science,Floating point,Voltage,Arithmetic logic unit,Electronic engineering,Real-time computing,Correlation,Boolean algebra,Scaling
Conference
ISSN
Citations 
PageRank 
0738-100X
11
0.59
References 
Authors
14
6
Name
Order
Citations
PageRank
G. Tziantzioulis1171.75
A. M. Gok2141.36
Faisal, S.M.3212.19
Nikos Hardavellas4101544.39
Seda Öǧrenci Memik548842.57
Srinivasan Parthasarathy64666375.76