Ronak, Bajaj and Fahmy, Suhaib A. (2015) Minimising DSP block usage through multi-pumping. In: International Conference on Field Programmable Technology (FPT), Queenstown, New Zealand, 7-9 Dec 2015

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Abstract

Resource sharing in the mapping of an algorithm to an architecture allows the same resource to be scheduled for different uses in different cycles, generally at the cost of increased schedule length. Multi-pumping is a method whereby a resource is clocked at a frequency that is a multiple of the surrounding circuit, thereby offering multiple executions per global clock, and therefore sharing in the same clock cycle. This concept maps well to FPGA architectures, where hard macro blocks are typically capable of running at higher frequencies than standard logic. While this technique has been demonstrated for multipliers, modern DSP blocks are more complex with multiple computational nodes. In this paper, we apply multi-pumping to minimise DSP block usage, while taking advantage of the multiple nodes they support. The proposed approach uses, on average, 39% fewer DSP blocks, at a cost of 19% more LUTs and 7% more registers.

Item Type:	Conference Item (Paper)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Adaptive computing systems, Computer software -- Development, Mobile computing -- Technology, Algorithms -- Computer programs
Official Date:	2015
Dates:	Date Event 2015 UNSPECIFIED
Status:	Peer Reviewed
Publication Status:	Published
Conference Paper Type:	Paper
Title of Event:	International Conference on Field Programmable Technology (FPT)
Type of Event:	Conference
Location of Event:	Queenstown, New Zealand
Date(s) of Event:	7-9 Dec 2015
Related URLs:	Organisation

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