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- W2895553128 abstract "Image processing applications employ various filters for several purposes, such as enhancing the images and extracting the features. Recent studies show that filters in image processing applications take a substantial amount of the execution time, and it is crucial to boost their performance to improve the overall performance of the image processing applications. Image processing filters require a significant amount of data sharing among threads which are in charge of filtering neighbor pixels. Graphics Processing Units (GPUs) attempt to satisfy the demand of data sharing by providing the scratch-pad memory, shuffle instructions, and on-chip caches. However, we observe that these mechanisms are insufficient to provide a fast and energy-efficient neighbor data sharing for the image processing filters. In this paper, we propose a new hardware/software co-design mechanism for GPUs, to effectively provide a fast and energy-efficient register-level neighbor data sharing for the image filters. We propose a neighbor data exchange mechanism, called Neda , that adds a register to each streaming processor (SP) which can be accessed by its neighboring SPs. Our experimental results show that Neda improves the performance and energy consumption by 12.4 and 13.5 percent, on average, respectively, compared to the NVIDIA SDK implementation of image processing filters. Moreover, Neda 's performance is within 9.3 percent of the ideal GPU with zero latency neighbor data exchange capability." @default.
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- W2895553128 date "2018-07-01" @default.
- W2895553128 modified "2023-10-14" @default.
- W2895553128 title "<italic>Neda</italic>: Supporting Direct Inter-Core Neighbor Data Exchange in GPUs" @default.
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- W2895553128 doi "https://doi.org/10.1109/lca.2018.2873679" @default.
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