energy efficiency in parallel systems - rochester...
TRANSCRIPT
Energy Efficiency in
parallel systems Alberto Santos
Overview
Introduction
Improving performance in parallel comp.
systems
Improving energy-efficiency in parallel
comp. systems
Ongoing Research
http://www.buzzle.com/articles/differences-and-
similarities-between-grid-and-cluster-computing.html
Introduction
http://www.cs.columbia.edu/~sedwards/classes/2012/3827-spring/advanced-arch-2011.pdf
Introduction
Introduction
IBM roadrunner
Cray Jaguar
https://en.wikipedia.org/wiki/Jaguar_(supercomputer)
https://en.wikipedia.org/wiki/IBM_Roadrunner
Improving Performance: Task duplication
scheduling
Darbha, S., & Agrawal, D. P. (1997). A task duplication based scalable scheduling algorithm for distributed
memory systems. Journal of parallel and Distributed Computing, 46(1), 15-27.
Improving Performance: Task duplication
scheduling
Darbha, S., & Agrawal, D. P. (1997). A task duplication
based scalable scheduling algorithm for distributed
memory systems. Journal of parallel and Distributed
Computing, 46(1), 15-27.
Improving Performance: Task duplication
scheduling
Choe, T. Y., & Park, C. I. (2002). A task duplication based scheduling algorithm with optimality condition in heterogeneous
systems. In Parallel Processing Workshops, 2002. Proceedings. International Conference on (pp. 531-536). IEEE.
Improving Performance: Task duplication
scheduling
Choe, T. Y., & Park, C. I. (2002). A task duplication based scheduling algorithm with optimality condition in heterogeneous
systems. In Parallel Processing Workshops, 2002. Proceedings. International Conference on (pp. 531-536). IEEE.
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Improving Performance: Task duplication
scheduling
Choe, T. Y., & Park, C. I. (2002). A task duplication based scheduling algorithm with optimality condition in heterogeneous
systems. In Parallel Processing Workshops, 2002. Proceedings. International Conference on (pp. 531-536). IEEE.
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Improving Energy Efficiency: Dynamic
Voltage Frequency Scalling
Voltage
Fre
quency
Dynamic speed scaling (power is derived
by function of 𝑠𝛼, where 𝛼 > 1)
Dynamic Voltage Scaling DVS
Dynamic Voltage Frequency Scaling
Scaling up Voltage and frequency when
fully active
Scaling down when not busy
Improving Energy Efficiency: Dynamic
Voltage Frequency Scalling
http://www.ti.com/lit/ml/sprp571/sprp571.pdf
Improving Energy Efficiency: Dynamic
Voltage Frequency Scalling
http://www.ti.com/lit/ml/sprp571/sprp571.pdf
High performance Energy Efficient
Algorithm
Steps in Creating a Parallel Program
Energy Efficient Algorithm
Conclusions
Questions?