Design and Preliminary Evaluation of Omni OpenACC Compiler for Massive MIMD Processor PEZY-SC
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- 关键词：PEZY ; SC ; OpenACC ; Compiler
- 刊名：Lecture Notes in Computer Science
- 出版年：2016
- 出版时间：2016
- 年：2016
- 卷：9903
- 期：1
- 页码：293-305
- 全文大小：1,134 KB
- 参考文献：1.The green500. http://www.green500.org
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12.Warren, M.S., Salmon, J.K., Becker, D.J., Goda, M.P., Sterling, T., Winckelmans, W.: Pentium pro inside: I. a treecode at 430 gigaflops on asci red, ii. price/performance of $50/mflop on loki and hyglac. In: ACM/IEEE 1997 Conference on Supercomputing, p. 61, November 1997 - 作者单位：Akihiro Tabuchi (16)
Yasuyuki Kimura (17)
Sunao Torii (17)
Hideo Matsufuru (18)
Tadashi Ishikawa (18)
Taisuke Boku (16) (19)
Mitsuhisa Sato (16) (20)
16. Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Japan
17. ExaScaler Inc., Tokyo, Japan
18. Computing Research Center, High Energy Accelerator Research Organization (KEK), Tsukuba, Japan
19. Center for Computational Sciences, University of Tsukuba, Tsukuba, Japan
20. RIKEN Advanced Institute for Computational Science, Kobe, Japan - 丛书名：OpenMP: Memory, Devices, and Tasks
- ISBN：978-3-319-45550-1
- 刊物类别：Computer Science
- 刊物主题：Artificial Intelligence and Robotics
Computer Communication Networks
Software Engineering
Data Encryption
Database Management
Computation by Abstract Devices
Algorithm Analysis and Problem Complexity - 出版者：Springer Berlin / Heidelberg
- ISSN：1611-3349
- 卷排序：9903
文摘
PEZY-SC is a novel massive Multiple Instruction Multiple Data (MIMD) processor used as an accelerator and characterized by high power efficiency. OpenACC is a standard directive-based programming model for accelerators, and programmers can concisely offload data and computation to the accelerators. In this paper, we present the design and preliminary implementation of an OpenACC compiler for a PEZY-SC. Our compiler translates C code with OpenACC directives to the corresponding PZCL code, which is the programming environment for PEZY-SC. The evaluation shows that the performance of the OpenACC version achieves over 98 % at N-body and up to 88 % at NAS Parallel Benchmarks CG than that of the PZCL version. In addition, we examined optimization techniques such as kernel merging and explicit context switching to exploit the PEZY-SC MIMD architecture, which differs from the single instruction multiple data graphics processing units. We found these optimizations useful in improving the performance and will be implemented in the future release.