34 results about "General purpose graphic processing unit" patented technology

A general-purpose programming environment allows users to program a GPU as a general-purpose computation engine using familiar C / C++ programming constructs. Users may use declaration specifiers to identify which portions of a program are to be compiled for a CPU or a GPU. Specifically, functions, objects and variables may be specified for GPU binary compilation using declaration specifiers. A compiler separates the GPU binary code and the CPU binary code in a source file using the declaration specifiers. The location of objects and variables in different memory locations in the system may be identified using the declaration specifiers. CTA threading information is also provided for the GPU to support parallel processing.

One embodiment of the invention sets forth a computing system for performing cryptographic computations. The computing system comprises a central processing unit, a graphics processing unit, and a driver. The central processing requests a cryptographic computation. In response, the driver downloads microcode to perform the cryptographic computation to the graphics processing unit and the graphics processing unit executes microcode. This offloads cryptographic computations from the CPU. As a result, cryptographic computations are performed faster and more efficiently on the GPU, freeing resources on the CPU for other tasks.

The present invention uses a Single Instruction Multiple Data (SIMD) architecture to form real time 3D radar images recorded in cylindrical near field scenarios using a wavefront reconstruction approach. A novel interpolation approach is executed in parallel, significantly reducing the reconstruction time without compromising the spatial accuracy and signal to noise ratios of the resulting images. Since each point in the problem space can be processed independently, the proposed technique was implemented using an approach on a General Purpose Graphics Processing Unit (GPGPU) to take advantage of the high performance computing capabilities of this platform.

This disclosure describes techniques for extending the architecture of a general-purpose graphics processing unit, GPGPU, with parallel processing units to allow efficient processing of pipeline-based applications. The technique includes configuring local memory buffers connected to parallel processing units operating as stages of a processing pipeline to hold data for transfer between the parallel processing units. The local memory buffers allow on-chip, low power, direct data transfer between the parallel processing units. The local memory buffer may include a hardware-based data flow control mechanism to enable transfer of data between the parallel processing units. In this way, data can be passed directly from one parallel processing unit to the next parallel processing unit in the processing pipeline via the local memory buffer, effectively transforming the parallel processing unit into a series of pipeline stages.

The invention belongs to the technical field of a parallel processing unit, and particularly relates to a high-dimensional-data-oriented vocabulary tree building method based on a heterogeneous platform. According to the method, the strong parallel calculation capability and the programmability of a graphics processing unit arranged on a heterogeneous processing platform (a mixed architecture of a general purpose processor and a GPGPU (General Purpose Graphics Processing Unit)) are used for accelerating the speed of the building process of a high-dimensional vocabulary tree. The characteristic of high concurrency of the graphics processing unit is used for accelerating the speed of the core process of a high-dimensional vocabulary tree algorithm; the characteristics of the high-dimensional vocabulary tree algorithm and the memory access mode of the graphics processing unit are used for optimizing the memory accessing process of the algorithm; and a coordination strategy of a host and the graphics processing unit in the operation process of the high-dimensional vocabulary tree algorithm is designed. The method has the advantage that the building speed of the high-dimensional-data-oriented vocabulary tree can be effectively accelerated.

The invention discloses a method for implementing register caches of GPGPU (general purpose graphics processing units). The method includes removing original register files in various stream processors, adding the caches of registers required for storing threads being executed, and loading register data in memories to the register caches before the threads are executed; selecting the thread combinations with the maximum thread quantities from the executable threads on the premise that the registers required by execution of the threads can be stored in the register caches of the stream processors, executing the selected thread combinations, loading register data in the memories to the register caches, selectively executing the threads in the thread combinations in optional modes and reselecting another group of threads when all the threads in the selected thread combinations cannot be executed. The register data are used by each thread in the selected thread combinations. The method has the advantages that storage spaces required by the register files of the stream processors can be reduced, energy consumption and areas can be decreased, the problem of constraints due to insufficient quantities of registers of existing stream processors can be solved, and the system efficiency can be improved.

The present invention relates to a system for rendering a three dimensional character and a method for processing thereof. The system for rendering a three dimensional character renders a three dimensional character model, for example, a skin having a multilayered structure such as a face of the person to enable realistic skin expressions according to reflection and scattering of light using a GPGPU. To this end, the system for rendering a three dimensional character includes a plurality of GPGPU modules corresponding to a render pass. According to the present invention, an irradiance texture of an image for each layer of the skin is created and processed using the GPGPU without passing through a render pass of a rendering library, thereby reducing a load of the system for rendering and enabling realistic skin expressions in real time.