Title :
Power consideration in mapping LUT based FPGA circuits
Author :
Bucur, Ion I. ; Stefanescu, Costin ; Surpateanu, Adrian ; Cupcea, Nicolae
Author_Institution :
Comput. Sci. & Eng. Dept., Univ. Politeh. of Bucharest, Bucharest, Romania
Abstract :
In this paper is presented a new approach for decreasing the functional power consumption in LUT based FPGA implemented circuits. The attempt is based on reducing logic activity among LUTs. In order to achieve this target it was used the simulation-based approach that estimates, using a Monte Carlo experiment, the dynamic switching activity of each line in the circuit. Traversing circuits from primary inputs lines to the primary output lines, step by step stationary probability and transition distribution are computed at the output of each gate. Preserving the best depth of the circuits the mapping stage is done searching to hide high transition lines inside LUTs.
Keywords :
Monte Carlo methods; circuit switching; field programmable gate arrays; probability; table lookup; LUT-based FPGA circuit; Monte Carlo experiment; dynamic switching activity; functional power consumption; logic activity reduction; mapping stage; simulation-based approach; step-by-step stationary probability; transition distribution; CMOS technology; Computational modeling; Computer science; Energy consumption; Field programmable gate arrays; Logic circuits; Power engineering and energy; Routing; Table lookup; Temperature;
Conference_Titel :
Intelligent Computer Communication and Processing, 2009. ICCP 2009. IEEE 5th International Conference on
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4244-5007-7
DOI :
10.1109/ICCP.2009.5284732