4: Scalability and Energy in Manycore Processors
Plan:
- Parallelism and scalability
- Amdahl's law
- Gustafson-Barsi's Law
- Amdahl's law and Multicore Processors
- Energy Efficiency
- Motivations
- Classification
- The models
- Evaluation of models
- Power-equivalent models
- Conclusions
Reading material:
(Papers can be found into the annotated
bibliography)
- Slides
(only for taking track of the arguments treated in the lesson)
- Hill,
M. D.
& Marty, M. R. (2008), 'Amdahl's Law in the Multicore Era', Computer
41, 33--38.
- Woo,D.H. & Lee, H.-H.S. (2008), 'Extending Amdahl's Law for
Energy-Efficient computing in the Many-Core Era'. Computer, 2008, 41, 24-31
Possible personal project topics:
For
the PhD students that have to take the exam, from this lesson some
possible arguments for the personal project (small report and
presentation in class) are available:
- A detailed analysis of asymmetric and single chip architectures
from the energy efficiency point of view.