DocumentCode
39590
Title
Hybrid radix-4/-8 truncated multiplier for mobile GPU applications
Author
Seongrim Choi ; Gyeonghoon Kim ; Hoi-Jun Yoo ; Byeong-Gyu Nam
Author_Institution
Dept. of Comput. Sci. & Eng., Chungnam Nat. Univ., Daejeon, South Korea
Volume
50
Issue
23
fYear
2014
fDate
11 6 2014
Firstpage
1680
Lastpage
1682
Abstract
A hybrid radix-4/-8 truncated multiplier is proposed for mobile graphics processing unit (GPU) applications by combining the strong points of high-speed radix-4 and low-power radix-8 encoding schemes. A hybrid Booth encoder (HBE) for radix-4/-8 encoding is proposed by sharing the common logics between the two encodings. In addition, a hybrid radix-4/-8 truncation (HRT) scheme is proposed for more power reduction at a reasonable peak signal-to-noise ratio loss for mobile multimedia applications. Experimental results demonstrate 29.7 and 31.1% power savings from the HBE and the HRT schemes, respectively, resulting in a total of 60.7% power reduction from the previous work.
Keywords
graphics processing units; mobile computing; multimedia computing; HBE; HRT scheme; PSNR; hybrid booth encoder; hybrid radix-4--8 truncated multiplier; mobile GPU applications; mobile graphics processing unit applications; mobile multimedia applications; power reduction;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.1427
Filename
6954799
Link To Document