Name
Title | ||
|---|---|---|
Cooperative partitioning: Energy-efficient cache partitioning for high-performance CMPs |
Abstract | ||
|---|---|---|
Intelligently partitioning the last-level cache within a chip multiprocessor can bring significant performance improvements. Resources are given to the applications that can benefit most from them, restricting each core to a number of logical cache ways. However, although overall performance is increased, existing schemes fail to consider energy saving when making their partitioning decisions. This paper presents Cooperative Partitioning, a runtime partitioning scheme that reduces both dynamic and static energy while maintaining high performance. It works by enforcing cached data to be way-aligned, so that a way is owned by a single core at any time. Cores cooperate with each other to migrate ways between themselves after partitioning decisions have been made. Upon access to the cache, a core needs only to consult the ways that it owns to find its data, saving dynamic energy. Unused ways can be power-gated for static energy saving. We evaluate our approach on two-core and four-core systems, showing that we obtain average dynamic and static energy savings of 35% and 25% compared to a fixed partitioning scheme. In addition, Cooperative Partitioning maintains high performance while transferring ways five times faster than an existing state-of-the-art technique. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/HPCA.2012.6169036 | HPCA |
Keywords | Field | DocType |
high-performance cmps,static energy,fixed partitioning scheme,cooperative partitioning,energy saving,runtime partitioning scheme,dynamic energy,energy-efficient cache,high performance,overall performance,static energy saving,partitioning decision,energy efficient,resource manager,resource management,registers,hardware,vectors,wireless application protocol | Resource management,Single-core,Efficient energy use,Computer science,Cache,Parallel computing,Chip,Multiprocessing,Real-time computing,Dynamic energy,Wireless Application Protocol | Conference |
ISSN | Citations | PageRank |
1530-0897 | 28 | 0.82 |
References | Authors | |
23 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Karthik T. Sundararajan | 1 | 48 | 2.47 |
| Vasileios Porpodas | 2 | 71 | 6.38 |
| Timothy M. Jones | 3 | 390 | 31.35 |
| Nigel P. Topham | 4 | 360 | 46.78 |
| Björn Franke | 5 | 744 | 47.31 |