Energy and Performance Model of a SPARC Leon3 Processor
2009 (English)In: PROCEEDINGS OF THE 2009 12TH EUROMICRO CONFERENCE ON DIGITAL SYSTEM DESIGN, ARCHITECTURES, METHODS AND TOOLS, LOS ALAMITOS: IEEE COMPUTER SOC , 2009, 651-656 p.Conference paper (Refereed)
We present a general methodology to implement a processor energy model, based on instruction-level characterization, and we apply it to a SPARC-based Leon3 processor. The model is characterized by simulating back-annotated gate-level netlist and has two levels of accuracy: a coarse-grain estimation based on characterizing each single instruction and a fine-grain estimation accounting for the impact of instructions interdependency on energy and based on characterizing pairs of instructions together. Our investigation also keeps into account the effect that both data switching activity and registers correlation have on energy. We validate our model by applying it to a set of instruction traces generated by Instruction Set Simulation and compare it to extracting energy directly from gate level. We achieve a worst-case error similar or equal to 12% and a speedup higher than 1000 times.
Place, publisher, year, edition, pages
LOS ALAMITOS: IEEE COMPUTER SOC , 2009. 651-656 p.
Computer Science Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-30134DOI: 10.1109/DSD.2009.147ISI: 000275715100088ScopusID: 2-s2.0-74549136770ISBN: 978-0-7695-3782-5OAI: oai:DiVA.org:kth-30134DiVA: diva2:401969
12th Euromicro Conference on Digital System Design, Architectures, Methods and Tools Patras, GREECE, AUG 27-29, 2009