کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
536788 870621 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
GSWO: A programming model for GPU-enabled parallelization of sliding window operations in image processing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
GSWO: A programming model for GPU-enabled parallelization of sliding window operations in image processing
چکیده انگلیسی


• A programming model is presented for automated CPU-to-GPU translation of SWO image processing.
• New easy-to-use pragmas are applicable to diversely parallelizable operations in SWO.
• Memory management hierarchy for effective memory creation and data transfer between CPU and GPU.
• A thorough performance evaluation of the model using benchmarks and practical applications.
• Results show performance gains and improved applicability and usability in state-of-the-art.

Sliding Window Operations (SWOs) are widely used in image processing applications. They often have to be performed repeatedly across the target image, which can demand significant computing resources when processing large images with large windows. In applications in which real-time performance is essential, running these filters on a CPU often fails to deliver results within an acceptable timeframe. The emergence of sophisticated graphic processing units (GPUs) presents an opportunity to address this challenge. However, GPU programming requires a steep learning curve and is error-prone for novices, so the availability of a tool that can produce a GPU implementation automatically from the original CPU source code can provide an attractive means by which the GPU power can be harnessed effectively. This paper presents a GPU-enabled programming model, called GSWO, which can assist GPU novices by converting their SWO-based image processing applications from the original C/C++ source code to CUDA code in a highly automated manner. This model includes a new set of simple SWO pragmas to generate GPU kernels and to support effective GPU memory management. We have implemented this programming model based on a CPU-to-GPU translator (C2GPU). Evaluations have been performed on a number of typical SWO image filters and applications. The experimental results show that the GSWO model is capable of efficiently accelerating these applications, with improved applicability and a speed-up of performance compared to several leading CPU-to-GPU source-to-source translators.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing: Image Communication - Volume 47, September 2016, Pages 332–345
نویسندگان
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