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Two schemes for rapid generation of digital video holograms using PC cluster

机译：使用PC机群快速生成数字视频全息图的两种方案

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Computer-generated holography (CGH), which is a process of generating digital holograms, is computationally expensive. Recently, several methods/systems of parallelizing the process using graphic processing units (GPUs) have been proposed. Indeed, use of multiple GPUs or a personal computer (PC) cluster (each PC with GPUs) enabled great improvements in the process speed. However, extant literature has less often explored systems involving rapid generation of multiple digital holograms and specialized systems for rapid generation of a digital video hologram. This study proposes a system that uses a PC cluster and is able to more efficiently generate a video hologram. The proposed system is designed to simultaneously generate multiple frames and accelerate the generation by parallelizing the CGH computations across a number of frames, as opposed to separately generating each individual frame while parallelizing the CGH computations within each frame. The proposed system also enables the subprocesses for generating each frame to execute in parallel through multithreading. With these two schemes, the proposed system significantly reduced the data communication time for generating a digital hologram when compared with that of the state-of-the-art system.
机译：作为生成数字全息图的过程的计算机生成的全息图（CGH）在计算上非常昂贵。最近，已经提出了使用图形处理单元（GPU）来并行化处理的几种方法/系统。实际上，使用多个GPU或个人计算机（PC）群集（每个具有GPU的PC）可以极大地提高处理速度。但是，现有文献很少探索涉及快速生成多个数字全息图的系统和用于快速生成数字视频全息图的专用系统。这项研究提出了一种使用PC群集并能够更有效地生成视频全息图的系统。所提出的系统被设计为同时生成多个帧，并通过跨多个帧并行化CGH计算来加速生成，这与在并行生成每个帧内CGH计算的同时独立生成每个单独帧相反。所提出的系统还使用于生成每个帧的子过程能够通过多线程并行执行。与这两种方案相比，所提出的系统与现有技术的系统相比，显着减少了用于生成数字全息图的数据通信时间。

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