Noise isopleth-surface drawing-oriented multi-GPU (Graphics Processing Unit) rendering parallel-processing device and method thereof

A parallel processing and isosurface technology, applied in the field of value line drawing, can solve the problems of short airport noise information collection period and insufficient CPU module operation efficiency, and achieve the effect of high algorithm efficiency

Active Publication Date: 2014-03-05
CIVIL AVIATION UNIV OF CHINA
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Problems solved by technology

[0004] However, most of the existing algorithms run on the CPU module, and for huge data sets such as airport noise data, the computing efficiency of the CPU module is far from enough
At the same time, due to the short acquisition cycle of airport noise in...

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  • Noise isopleth-surface drawing-oriented multi-GPU (Graphics Processing Unit) rendering parallel-processing device and method thereof
  • Noise isopleth-surface drawing-oriented multi-GPU (Graphics Processing Unit) rendering parallel-processing device and method thereof
  • Noise isopleth-surface drawing-oriented multi-GPU (Graphics Processing Unit) rendering parallel-processing device and method thereof

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[0026] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0027] see figure 1 , a multi-GPU rendering parallel processing device for noise isosurface rendering, comprising:

[0028] The CPU processing module is used to receive the data of the noise data acquisition device, so as to write the data, screen and classify the data, assign the color of each part, set the direction of the line of sight vector and initialize the programming environment;

[0029] GPU module, described GPU module is made up of GPU main card module and GPU sub-card module; Wherein: described GPU main card module carries out real-time processing to the noise data in the flight event by executing kernel function, utilizes noise value change law to predict each The noise data of the period; the GPU sub-card module is composed of...

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Abstract

The invention discloses a noise isopleth-surface drawing-oriented multi-GPU (Graphics Processing Unit) rendering parallel-processing device and a method of the device, belonging to the parallel computing field. The device comprises a CPU (Central Processing Unit) processing module and a GPU module. The CPU processing module is mainly used for completing writing-in of data, screening and classifying of data, endowing of color of each part, setting of a sight vector direction and initializing of a programming environment. The GPU module is mainly used for completing a method of realizing computation and drawing of visual graphs. The GPU module is divided into a GPU main card module and a GPU additional card module. The GPU main card module is used for carrying out real-time treatment onto noise data in a flight event by executing a kernel function, and predicating noise data of each time interval by utilizing the noise value change value at the same time; and the GPU additional card module is used for mainly completing alternative rendering according to frames, and a drive program is used for sending each-frame drawing order transmitted by the CPU processing module to each additional card according to odd/even numbers, wherein one additional card is used for rendering odd frames and the other additional card is used for rendering even frames, and therefore, a real-time and efficient rendering purpose is achieved by virtue of cooperative work of multiple cards.

Description

technical field [0001] The invention belongs to the field of contour drawing, and in particular relates to a multi-GPU rendering parallel processing device and method for noise isosurface drawing. Background technique [0002] With the rapid development of the civil aviation industry and the gradual improvement of people's environmental awareness, the problem of airport noise has become increasingly prominent. How to effectively control the impact of airport noise on residents around the airport is a very important issue. For this reason, my country's environmental protection department stipulates that when building, rebuilding and expanding airports, it is necessary to conduct noise environmental impact assessments around the airport, and the airport noise isosurface map is an important tool for airport noise environmental impact assessment. Provide basis for surrounding land use planning. Therefore, it is of great significance to quickly and accurately draw airport noise c...

Claims

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Application Information

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IPC IPC(8): G06T1/20G06T15/00
Inventor 吕宗磊谢继文冯霞王兴虎胡欣
Owner CIVIL AVIATION UNIV OF CHINA
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