![](/images/graphics-bg.png)
A Vector-Like Reconfigurable Floating-Point Unit for the Logarithm
Joint Authors
Stamatakis, Alexandros
Alachiotis, Nikolaos
Source
International Journal of Reconfigurable Computing
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-03-17
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Information Technology and Computer Science
Abstract EN
The use of reconfigurable computing for accelerating floating-point intensive codes is becoming common due to the availability of DSPs in new-generation FPGAs.
We present the design of an efficient, pipelined floating-point datapath for calculating the logarithm function on reconfigurable devices.
We integrate the datapath into a stand-alone LUT-based (Lookup Table) component, the LAU (Logarithm Approximation Unit).
We extended the LAU, by integrating two architecturally independent, LAU-based datapaths into a larger component, the VLAU (vector-like LAU).
The VLAU produces 2 results/cycle, while occupying the same amount of memory as the LAU.
Under single precision, one LAU is 12 and 1.7 times faster than the GNU and Intel Math Kernel Library (MKL) implementations, respectively.
The LAU is also 1.6 times faster than the FloPoCo reconfigurable logarithm architecture.
Under double precision, one LAU is 20 and 2.6 times faster than the respective GNU and MKL functions and 1.4 times faster than the FloPoCo logarithm.
The VLAU is approximately twice as fast as the LAU, both under single and double precision.
American Psychological Association (APA)
Alachiotis, Nikolaos& Stamatakis, Alexandros. 2011. A Vector-Like Reconfigurable Floating-Point Unit for the Logarithm. International Journal of Reconfigurable Computing،Vol. 2011, no. 2011, pp.1-12.
https://search.emarefa.net/detail/BIM-464236
Modern Language Association (MLA)
Alachiotis, Nikolaos& Stamatakis, Alexandros. A Vector-Like Reconfigurable Floating-Point Unit for the Logarithm. International Journal of Reconfigurable Computing No. 2011 (2011), pp.1-12.
https://search.emarefa.net/detail/BIM-464236
American Medical Association (AMA)
Alachiotis, Nikolaos& Stamatakis, Alexandros. A Vector-Like Reconfigurable Floating-Point Unit for the Logarithm. International Journal of Reconfigurable Computing. 2011. Vol. 2011, no. 2011, pp.1-12.
https://search.emarefa.net/detail/BIM-464236
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464236