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    • 1. 发明申请
    • SYSTEM AND METHOD FOR LONG RUNNING COMPUTE USING BUFFERS AS TIMESLICES
    • 使用缓冲区作为时间表长时间运行的系统和方法
    • US20130162661A1
    • 2013-06-27
    • US13333920
    • 2011-12-21
    • Jeffrey A. BolzJeff SmithJesse HallDavid SodmanPhilip CuadraNaveen Leekha
    • Jeffrey A. BolzJeff SmithJesse HallDavid SodmanPhilip CuadraNaveen Leekha
    • G06T1/00
    • G06T1/20G06F9/3802G06F9/3836
    • A system and method for using command buffers as timeslices or periods of execution for a long running compute task on a graphics processor. Embodiments of the present invention allow execution of long running compute applications with operating systems that manage and schedule graphics processing unit (GPU) resources and that may have a predetermined execution time limit for each command buffer. The method includes receiving a request from an application and determining a plurality of command buffers required to execute the request. Each of the plurality of command buffers may correspond to some portion of execution time or timeslice. The method further includes sending the plurality of command buffers to an operating system operable for scheduling the plurality of command buffers for execution on a graphics processor. The command buffers from a different request are time multiplexed within the execution of the plurality of command buffers on the graphics processor.
    • 使用命令缓冲区作为图形处理器上长时间运行的计算任务的执行时间或时间段的系统和方法。 本发明的实施例允许使用管理和调度图形处理单元(GPU)资源的操作系统执行长时间运行的计算应用,并且可以对每个命令缓冲器具有预定的执行时间限制。 该方法包括从应用程序接收请求并确定执行请求所需的多个命令缓冲区。 多个命令缓冲器中的每一个可以对应于执行时间或时间片的一部分。 该方法还包括将多个命令缓冲器发送到可操作用于调度多个命令缓冲器以在图形处理器上执行的操作系统。 来自不同请求的命令缓冲器在图形处理器上的多个命令缓冲器的执行中被时分复用。
    • 3. 发明申请
    • Clustered principal components for precomputed radiance transfer
    • 用于预计算辐射传输的聚类主成分
    • US20050035965A1
    • 2005-02-17
    • US10641472
    • 2003-08-15
    • Peter-Pike SloanJohn SnyderJesse Hall
    • Peter-Pike SloanJohn SnyderJesse Hall
    • G06T15/50G06T15/60
    • G06T15/50
    • Real-time processing includes per-point transfer matrices forming a high-dimensional surface signal that is compressed using clustered principal component analysis (CPCA). CPCA partitions multiple samples into fewer clusters, each cluster approximating the signal as an affine subspace. Further, source radiance is input to a processor, which approximates source radiance using spherical harmonic basis to produce a set of source radiance coefficients. A graphics processing unit (GPU) processes the source radiance coefficients through the transfer matrix model for each cluster. The result of such processing is the exit radiance, which parameterizes the radiance leaving the surface of the object at each point, thus producing the shading for each point of the virtual object in real time.
    • 实时处理包括形成使用聚类主成分分析(CPCA)压缩的高维表面信号的每点传输矩阵。 CPCA将多个样本分成较少的簇,每个簇将信号近似为仿射子空间。 此外,源辐射被输入到处理器,处理器使用球谐函数近似源辐射以产生一组源辐射系数。 图形处理单元(GPU)通过每个簇的传递矩阵模型处理源辐射系数。 这种处理的结果是出射辐射度,其对在每个点处离开物体表面的辐射进行参数化,从而实时地为虚拟物体的每个点产生阴影。