On-line global energy optimization in multi-core systems using principles of analog computation

Deniz Z. T., Leblebici Y., Vittoz E. A.

IEEE JOURNAL OF SOLID-STATE CIRCUITS, cilt.42, sa.7, ss.1593-1606, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 7
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1109/jssc.2007.896694
  • Dergi Adı: IEEE JOURNAL OF SOLID-STATE CIRCUITS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1593-1606
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

This work presents the design and the silicon implementation of an on-line energy optimizer unit based on novel analog computation approaches, which is capable of dynamically adjusting power supply voltages and operating frequencies of multiple processing elements on-chip. The optimized voltage/frequency assignments are tailored to the instantaneous workload information on multiple tasks and fullyadaptive to variations in process and temperature. The optimizer unit has a response time of less than 50 mu s, occupies a silicon area of 0.021 mm'/task and dissipates 2 mW/task.