Dynamic Context Management for Low Power Coarse-Grained Reconfigurable Architecture Conference Paper uri icon

abstract

  • Coarse-grained reconfigurable architectures (CGRA) require many processing elements (PEs) and a configuration memory unit (configuration cache) for reconfiguration of its PE array. Although this structure is meant for high performance and flexibility, it consumes significant power. Specially, power consumption by configuration cache is explicit overhead compared to other types of IP cores. Reducing power in configuration cache is very crucial for CGRA to be more competitive and reliable processing core in embedded systems. In this paper, we propose a dynamic context management strategy for power saving in configuration cache. This power-efficient approach works without degrading the performance and flexibility of CGRA. Experimental results show that the proposed approach saves 38.24%/38.15% of the power in write/read-operation of configuration cache with negligible area overhead compared to the previous design. 2009 ACM.

name of conference

  • Proceedings of the 19th ACM Great Lakes symposium on VLSI - GLSVLSI '09

published proceedings

  • GLSVLSI 2009: PROCEEDINGS OF THE 2009 GREAT LAKES SYMPOSIUM ON VLSI

author list (cited authors)

  • Kim, Y., & Mahapatra, R. N.

citation count

  • 11

complete list of authors

  • Kim, Yoonjin||Mahapatra, Rabi N

publication date

  • January 2009