Instrumentation for accurate energy-to-solution measurements of a texas instruments TMS320C6678 digital signal processor and its DDR3 memory
2014 (English)In: E2SC ’14: Proceedings of the 2nd International Workshop on Energy Efficient Supercomputing, 2014, 89-98 p.Conference paper (Refereed)
Architectural choices for High-Performance Computingsystems have once again become interesting with energyefficiency for targeted workloads now being a major decisionfactor. A detailed understanding of the energy consumptionof major system components during code execution is criticalfor evolving architectures towards enhanced energy efficiency.The focus of this paper is on the measurement system hard- and software we designed and implemented for the assessmentof the energy-to-solution of HPC workloads for the Texas Instruments TMS320C6678 (6678) Digital Signal Processor. The 6678’s thermal design power falls between x86 serverprocessors and mobile CPUs and so does its floating-pointand memory system capabilities. Yet, compared to those types of processors in corresponding CMOS technology, it offers a potentially significant energy advantage. The measurement system is described together with a thorough error analysis. Measurements are processed out-of-band minimizing the impact on the measured system. Sample observations of the energy efficiency of the 6678 and its memory system are included for illustration.
Place, publisher, year, edition, pages
2014. 89-98 p.
IdentifiersURN: urn:nbn:se:kth:diva-163684DOI: 10.1109/E2SC.2014.12ScopusID: 2-s2.0-84923247074ISBN: 978-1-4799-7036-0OAI: oai:DiVA.org:kth-163684DiVA: diva2:801808
2nd International Workshop on Energy Efficient Supercomputing
FunderEU, FP7, Seventh Framework Programme, RI-261557EU, FP7, Seventh Framework Programme, RI-283493EU, FP7, Seventh Framework Programme, RI-287703Swedish National Infrastructure for Computing (SNIC)
QC 201504132015-04-102015-04-102015-04-13Bibliographically approved