A paper from IEEE.org

Product Type: Conference Publications

TITLE:
A Comprehensive Performance Comparison of CUDA and OpenCL

ABSTRACT:
This paper presents a comprehensive performance comparison between CUDA and OpenCL. We have selected 16 benchmarks ranging from synthetic applications to real-world ones. We make an extensive analysis of the performance gaps taking into account programming models, optimization strategies, architectural details, and underlying compilers. Our results show that, for most applications, CUDA performs at most 30% better than OpenCL. We also show that this difference is due to unfair comparisons: in fact, OpenCL can achieve similar performance to CUDA under a fair comparison. Therefore, we define a fair comparison of the two types of applications, providing guidelines for more potential analyses. We also investigate OpenCL's portability by running the benchmarks on other prevailing platforms with minor modifications. Overall, we conclude that OpenCL's portability does not fundamentally affect its performance, and OpenCL can be a good alternative to CUDA.

Available Format: PDF
Member: US$10.00
Non-member: US$31.00

Interested?
http://ieeexplore.ieee.org/xpl/freeabs_all.js...rnumber=6047190&tag=1

Note:
The "o" in "optimization strategies,..." is missing in the source webpage as seen 2012.04.22Su.1230.utc. I supplied that "o" in the abstract written above.
;