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- Title
A high performance parallel DCT with OpenCL on heterogeneous computing environment.
- Authors
Kim, Cheong; Choi, Yong
- Abstract
A noteworthy thing in desktop PCs is that they can provide a great opportunity to increase the performance of processing multimedia data by exploiting task- and data-parallelism with multi-core CPU and many-core GPU. This paper presents a high performance parallel implementation of 2D DCT on this heterogeneous computing environment. For this purpose, Intel TBB (threading building blocks) and OpenCL (Open Compute Language) are utilized for task- and data-parallelism, respectively. The simulation result shows that the parallel DCT implementations far the serial ones in processing speed. Especially, OpenCL implementation shows a linear speedup, a typical SIMD characteristic as the increase of 2D data sets.
- Subjects
HIGH performance computing; COMPUTER systems; HETEROGENEOUS computing; PARALLEL processing; MULTIMEDIA communications; CENTRAL processing units
- Publication
Multimedia Tools & Applications, 2013, Vol 64, Issue 2, p475
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-012-1028-x