NDLI: Auto-tuning GEMM Kernels for a Decoupled Access/Execute Architecture Processor

Content Provider	IEEE Xplore Digital Library
Author	Zeng Zhao Naijie Gu Yangzhao Yang
Copyright Year	2013
Description	Author affiliation: Sch. of Comput. Sci. & Technol., Univ. of Sci. & Technol. of China, Hefei, China (Zeng Zhao; Naijie Gu; Yangzhao Yang)
Abstract	A typical decoupled access/execute architecture (DAE) processor is consisting of Access Processors (AP) and Execute Processors (EP). The overhead of memory access of AP can be hidden by calculation of EP. Based on this principle, a new optimization algorithm of general dense matrix multiplication operation (GEMM) will be introduced in this paper. The algorithm is divided into four levels, every level of which uses different storage structure of the processor. That makes the algorithm closely combine with the features of DAE architecture. Furthermore, a fetch performance evaluation system - DAEFS will also be introduced. It is a runtime system with very little overhead, and can be used to collect the information about the relationship between fetching and calculation for DAE processors. With the help of DAEFS, several levels of the new algorithm are capable to self-adjust. Consequently, the algorithm can find the best block parameters for several levels during runtime. We implement the algorithm with DAEFS on a DAE processor platform - Godson-3B, which has been used to build up the teraflop computer - KD90. The performance of the optimized GEMM on the real platform matches the best simulation results of this processor.
Starting Page	233
Ending Page	239
File Size	433957
Page Count	7
File Format	PDF
e-ISBN	9781479927968
DOI	10.1109/CANDAR.2013.41
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Prefetching Computer architecture Registers Kernel Niobium Optimization
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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