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نویسندگان
چکیده
近些年来,随着计算机的计算能力和存储能力的飞速发展,科学计算的规模越来越大,在气象、生物技术、 油藏模拟、核技术等领域,用于计算的网格已达到百万、千万乃至数十亿,计算的数据结果也已达到 GB 乃至 TB 大小。而和计算、存储技术的飞速发展相比,由于受材料、电子等工艺的限制,计算机的显示尺寸的发展相对滞 后。如何能够快速、准确的表现海量数据已经成为一个亟需解决的问题。它不仅包括如何以更大的屏幕来显示数 据,还包括如何以更快的速度来处理数据。 使用并行计算技术的大屏幕显示是解决上述问题一个很好的途径。采用多个显示设备取代原来的单个显示设 备使得显示屏幕增大为相应的倍数;各个显示设备由单独的计算机进行驱动,计算任务的分担使得显示速度也大 大提高。 除了在科学计算方面的应用外,大屏幕显示作为一种“半沉浸式”的虚拟环境,在虚拟战场、视频会议、公 共场合演示等方面也有着广泛的应用。 大屏幕显示技术是目前国外研究的热点之一,具有代表性的有 Princeton 大学的 Display Wall、Minnesota 大学 的 PowerWall、AT&T 实验室的 InfoWall 等。它的主要研究内容包括: l 硬件环境的构建:包括对计算机、网络设备、投影仪等设备的选择以及如何产生无缝、无色差的高质 量的图形输出。 l 软件环境的构建:包括操作系统、通信平台的选择,通用底层函数库的开发以及人机交互界面的设计 与开发。 l 应用于大屏幕投影系统的资源研究:包括了现有的一般程序的大屏幕显示以及专有可视化系统的大屏 幕显示。 本文将针对上述三点进行详细的阐述。
منابع مشابه
Phase Tuning in Synchronization of Nonlinear Master-slave Oscillating Systems Using Decomposition Method
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