NDLI: OpenCL Performance Evaluation on Modern Multi Core CPUs

Content Provider	IEEE Xplore Digital Library
Author	Joo Hwan Lee Patel, K. Nigania, N. Hyojong Kim Hyesoon Kim
Copyright Year	2013
Description	Author affiliation: Sch. of Comput. Sci., Georgia Inst. of Technol., Atlanta, GA, USA (Joo Hwan Lee; Patel, K.; Nigania, N.; Hyojong Kim; Hyesoon Kim)
Abstract	Utilizing heterogeneous platforms for computation has become a general trend making the portability issue important. OpenCL (Open Computing Language) serves the purpose by enabling portable execution on heterogeneous architectures. However, unpredictable performance variation on different platforms has become a burden for programmers who write OpenCL programs. This is especially true for conventional multicore CPUs, since the performance of general OpenCL applications on CPUs lags behind the performance expected by the programmer considering the conventional parallel programming model. In this paper, we evaluate the performance of OpenCL programs on out-of-order multicore CPUs from the architectural perspective. We evaluate OpenCL programs on various aspects, including scheduling overhead, instruction-level parallelism, address space, data location, locality, and vectorization, comparing OpenCL to conventional parallel programming models for CPUs. Our evaluation indicates different performance characteristic of OpenCL programs and also provides insight into the optimization metrics for better performance on CPUs.
Starting Page	1177
Ending Page	1185
File Size	526354
Page Count	9
File Format	PDF
e-ISBN	9780769549798
DOI	10.1109/IPDPSW.2013.141
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance evaluation OpenCL Performance on CPU Program processors Data Transfer Multicore processing Locality Benchmark testing Programming Scheduling Overhead ILP Kernel Vectorization
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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