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| Content Provider | ACM Digital Library |
|---|---|
| Author | Ignatowski, Michael Jayasena, Nuwan Lyashevsky, Alexander Zhang, Dongping Xu, Lifan Greathouse, Joseph L. |
| Abstract | As computation becomes increasingly limited by data movement and energy consumption, exploiting locality throughout the memory hierarchy becomes critical to continued performance scaling. Moving computation closer to memory presents an opportunity to reduce both energy and data movement overheads. We explore the use of 3D die stacking to move memory-intensive computations closer to memory. This approach to processing in memory addresses some drawbacks of prior research on in-memory computing and is commercially viable in the foreseeable future. Because 3D stacking provides increased bandwidth, we study throughput-oriented computing using programmable GPU compute units across a broad range of benchmarks, including graph and HPC applications. We also introduce a methodology for rapid design space exploration by analytically predicting performance and energy of in-memory processors based on metrics obtained from execution on today's GPU hardware. Our results show that, on average, viable PIM configurations show moderate performance losses (27%) in return for significant energy efficiency improvements (76\% reduction in EDP) relative to a representative mainstream GPU at 22nm technology. At 16nm technology, on average, viable PIM configurations are performance competitive with a representative mainstream GPU (7% speedup) and provide even greater energy efficiency improvements (85\% reduction in EDP). |
| Starting Page | 85 |
| Ending Page | 98 |
| Page Count | 14 |
| File Format | |
| ISBN | 9781450327497 |
| DOI | 10.1145/2600212.2600213 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2014-06-23 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Energy efficiency Processing in memory Performance modeling and analysis Gpgpu |
| Content Type | Text |
| Resource Type | Article |
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