J4 ›› 2014, Vol. 41 ›› Issue (4): 82-86+93.doi: 10.3969/j.issn.1001-2400.2014.04.015

• Original Articles • Previous Articles     Next Articles

Low energy consumption NoC mapping algorithm based on the modified electromagnetism-like mechanism

ZANG Mingxiang;WANG Ting;ZHOU Wenhong   

  1. (School of Computer Science and Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2013-05-06 Online:2014-08-20 Published:2014-09-25
  • Contact: ZANG Mingxiang E-mail:mxzang@mail.xidian.edu.cn

Abstract:

A low-energy mapping algorithm based on the modified electromagnetism-like mechanism is proposed. Real number coder is used to realize the transformation of electromagnetism-like algorithm from continuous to discrete space. To improve the initializing particle quality and the algorithm efficiency, roulette wheel selection is used for population initialization. Adjustment sequence is designed to improve the efficiency of searching local fine particles. The new charge formula is proposed to get the force, and some particles are filtered out to improve the efficiency. Experimental results shows that the proposed algorithm is more efficient in energy optimization. Compared with the existing genetic algorithm and ant colony algorithm, the electromagnetism-like mapping algorithm has a more evenly distributed energy consumption, and the algorithm can also save 20.35% and 12.58% energy on average.Thus the energy consumption of the NoC is effectively reduced.

Key words: network-on-chip, modified electromagnetism-like algorithm, mapping algorithm, low-energy consumption

CLC Number: 

  • TN47