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Migration in Single Chip Multiprocessors

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2 Author(s)

Global communication costs in future single-chipmultiprocessors will increase linearly with distance. In this paper,we revisit the issues of locality and load balance in order totake advantage of these new costs. We present a technique whichsimultaneously migrates data and threads based on vectors specifyinglocality and resource usage. This technique improves performanceon applications with distinguishable locality and imbalancedresource usage. 64% of the ideal reduction in execution timewas achieved on an application with these traits while no improvementwas obtained on a balanced application with little locality.

Published in:

Computer Architecture Letters  (Volume:1 ,  Issue: 1 )