Hierarchical Scheduling for Multicores With Multilevel Cache Hierarchies

To achieve good performance, programs must exploit locality in its memory references, i.e., it must utilize its caches effectively. For machines with a single processor or core, there is a rich history of work on external memory and hierarchical memory models and algorithms, all aimed at reducing the number of cache misses in a program. Exploiting locality is even more important for multicores; any increase in the number of cores on a chip puts pressure on the quantity of cache available for each core. Unfortunately, multicore systems can have cache hierarchies that are much more complicated than the hierarchies for unicore systems.

Provided by: University of Washington Topic: Data Centers Date Added: Aug 2011 Format: PDF

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