Title :
Per-task Energy Accounting in Computing Systems
Author :
Qixiao Liu ; Jimenez, Victor ; Moreto, Miquel ; Abella, Jaume ; Cazorla, Francisco J. ; Valero, M.R.
Author_Institution :
Univ. Politec. de Catalunya, Barcelona, Spain
fDate :
July-Dec. 19 2014
Abstract :
We present for the first time the concept of per-task energy accounting (PTEA) and relate it to per-task energy metering (PTEM). We show the benefits of supporting both in future computing systems. Using the shared last-level cache (LLC) as an example: (1) We illustrate the complexities in providing PTEM and PTEA; (2) we present an idealized PTEM model and an accurate and low-cost implementation of it; and (3) we introduce a hardware mechanism to provide accurate PTEA in the cache.
Keywords :
cache storage; power aware computing; PTEA; PTEM model; computing systems; per-task energy accounting; per-task energy metering; shared last-level cache; Benchmark testing; Computational modeling; Energy consumption; Energy management; Monitoring; Multicore processing; Radiation detectors;
Journal_Title :
Computer Architecture Letters
DOI :
10.1109/L-CA.2013.24
