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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yaohua Wang Shuming Chen Jianghua Wan Jiayuan Meng Kai Zhang Wei Liu Xi Ning |
| Copyright Year | 2013 |
| Description | Author affiliation: Dept. of Comput. Sci., Univ. of Virginia, Charlottesville, VA, USA (Jiayuan Meng) || Sch. of Comput. Sci., Nat. Univ. of Defense Technol., Changsha, China (Yaohua Wang; Shuming Chen; Jianghua Wan; Kai Zhang; Wei Liu; Xi Ning) |
| Abstract | The efficacy of widely used single instruction, multiple data architectures is often limited when handling divergent control flows and short vectors; both circumstances result in SIMD fragments that use only a subset of the available datapaths. This paper proposes a multiple SIMD, multiple data (MSMD) architecture with flexible SIMD datapaths that can be dynamically or statically repartitioned among multiple control flow paths, all executing simultaneously. The benefits are twofold: SIMD fragments resulting from divergent branches can execute in parallel, as can multiple kernels with short vectors. The resulting SIMD architecture can achieve the flexibility similar to a multiple instruction, multiple data architecture. We have both simulated the architecture and implemented a prototype. Our experiments with data-parallel benchmarks show that the architecture leads to 60% performance gains with an area overhead of only 3.06%. |
| Starting Page | 603 |
| Ending Page | 614 |
| File Size | 504172 |
| Page Count | 12 |
| File Format | |
| ISBN | 9781467355858 |
| ISSN | 15300897 |
| e-ISBN | 9781467355872 |
| DOI | 10.1109/HPCA.2013.6522353 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-02-23 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Kernel Vectors Multicore processing Prototypes Arrays Hardware |
| Content Type | Text |
| Resource Type | Article |
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