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Parallel photon-mapping rendering on a mesh-NoC-based MPSoC platform

机译:基于网状NoC的MPSoC平台上的并行光子映射渲染

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摘要

High demand 3-D scenes on embedded systems draw the developers' attention to use the whole resources of current low-power processors and add dedicated hardware as a graphic accelerator unit to deal with real-time realistic scene rendering. Photon mapping, as one of the most powerful techniques to render highly realistic 3-D images by high amounts of floating-point operations, is very time-consuming. To use the advantages of multiprocessor systems to make 3-D scenes, parallel photon-mapping rendering on a homogeneous multiprocessor SoC (MPSoC) platform along with a mesh NoC by an adaptive wormhole routing method to communicate packets among cores is proposed in this paper. To make efficient use of the MPSoC platform to carry out photon-mapping rendering, many methods concerning the increase of load balancing, the efficient use of memory, and the decrease of communication cost to achieve a scalable application are explored in this paper. The resulting MPSoC platform is verified and evaluated by cycle-accurate simulations for different sizes of the mesh NoC. As expected, the proposed methods can obtain excellent load balancing and achieve a maximum of 44.3 times faster on an 8-by-8 MPSoC platform than on a single-core MPSoC platform.
机译:嵌入式系统上的高需求3D场景吸引了开发人员的注意力,以使用当前低功耗处理器的全部资源,并添加专用硬件作为图形加速器单元来处理实时逼真的场景渲染。作为通过大量浮点操作渲染高度逼真的3D图像的最强大技术之一,光子映射非常耗时。为了利用多处理器系统的优势制作3D场景,本文提出了在同质多处理器SoC(MPSoC)平台上的并行光子映射渲染以及网格NoC的自适应虫洞路由方法,以在内核之间通信数据包。为了有效利用MPSoC平台进行光子映射渲染,本文探索了许多有关增加负载平衡,有效利用内存以及降低通信成本以实现可扩展应用的方法。对于不同尺寸的网状NoC,通过周期精确的仿真对所得的MPSoC平台进行了验证和评估。不出所料,所提出的方法可以获得出色的负载平衡,并且在8×8 MPSoC平台上的速度最高比在单核MPSoC平台上快44.3倍。

著录项

  • 来源
    《Journal of Parallel and Distributed Computing》 |2014年第7期|2626-2638|共13页
  • 作者单位

    Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43, Keelung Road, Section 4, Taipei (106), Taiwan;

    Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43, Keelung Road, Section 4, Taipei (106), Taiwan;

    Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, 43, Keelung Road, Section 4, Taipei (106), Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Global illumination; Mesh; MPSoC; NoC; Photon mapping; Parallel rendering;

    机译:全球照明;啮合;MPSoC;NoC;光子映射;平行渲染;

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