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2010
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Profitability-based power allocation for speculative multithreaded systems

10 years 16 days ago
Profitability-based power allocation for speculative multithreaded systems
With the shrinking of transistors continuing to follow Moore's Law and the non-scalability of conventional outof-order processors, multi-core systems are becoming the design choice for industry. Performance extraction is thus largely alleviated from the hardware and placed on the programmer/compiler camp, who now have to expose Thread Level Parallelism (TLP) to the underlying system in the form of explicitly parallel applications. Unfortunately, parallel programming is hard and errorprone. The programmer has to parallelize the work, perform the data placement, and deal with thread synchronization. Systems that support speculative multithreaded execution like Thread Level Speculation (TLS), offer an interesting alternative since they relieve the programmer from the burden of parallelizing applications and correctly synchronizing them. Since systems that support speculative multithreading usually treat all threads equally, they are energy-inefficient. This inefficiency stems from t...
Polychronis Xekalakis, Nikolas Ioannou, Salman Kha
Added 13 Feb 2011
Updated 13 Feb 2011
Type Journal
Year 2010
Where IPPS
Authors Polychronis Xekalakis, Nikolas Ioannou, Salman Khan, Marcelo Cintra
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