Name
Title | ||
|---|---|---|
Core groups: System abstractions for extending the dynamic range of client devices using heterogeneous cores |
Abstract | ||
|---|---|---|
Mobile devices and applications exhibit highly diverse behavior in their usage and power/performance requirements. In order to accommodate such diversity, this paper presents ‘HeteroMates’ system that uses heterogeneous processors to extend the dynamic power/performance range of client devices, i.e., offer both high performance and reduced power consumption. It proposes core group abstraction that groups a small number of heterogeneous cores to form a single execution unit. Group heterogeneity is exposed as multiple heterogeneity (H) states, an interface similar to the P-state interface already used for frequency scaling. Further, the core group abstraction is extended to a multicore group to allow multiple cores within a group to be active concurrently. Also demonstrated is the importance of ‘uncore’ power in total SoC power consumption and the need for uncore-aware operation and uncore power scalability when seeking to extend a platform's dynamic power/performance range using heterogeneity. Experimental evaluations use real-world client applications and a unique experimental testbed comprised of heterogeneous cores and a shared uncore component. Results show that HeteroMates can provide significant performance improvements while also lowering energy consumption for a diverse set of applications when compared to homogeneous processor configurations. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1016/j.suscom.2013.01.010 | Sustainable Computing: Informatics and Systems |
Keywords | Field | DocType |
Heterogeneous multicores,Client devices,Dynamic range,Uncore power | Computer science,Testbed,Uncore,Dynamic demand,Frequency scaling,Execution unit,Multi-core processor,Energy consumption,Embedded system,Scalability | Journal |
Volume | Issue | ISSN |
3 | 3 | 2210-5379 |
Citations | PageRank | References |
0 | 0.34 | 32 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Vishal Gupta | 1 | 55 | 8.21 |
| Paul Brett | 2 | 487 | 23.97 |
| David A. Koufaty | 3 | 514 | 20.13 |
| d c reddy | 4 | 0 | 0.34 |
| Scott Hahn | 5 | 451 | 19.80 |
| Karsten Schwan | 6 | 1013 | 74.53 |
| Ganapati Srinivasa | 7 | 26 | 3.11 |