GPU and distributed computing-based earthquake damage analysis method for high-rise building group

A technology of distributed computing and analysis methods, applied in resource allocation, complex mathematical operations, multi-programming devices, etc., can solve problems such as high cost of supercomputing, cumbersome procedures, and difficulty in meeting the needs of earthquake damage analysis of high-rise buildings , to achieve the effect of solving computing bottlenecks, improving computing efficiency, and improving computing efficiency

Inactive Publication Date: 2018-01-19
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

However, the high cost of supercomputing and cumbersome procedures make it difficult to meet the large and frequent earthquake damage analysis requirements of high-rise buildings

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  • GPU and distributed computing-based earthquake damage analysis method for high-rise building group
  • GPU and distributed computing-based earthquake damage analysis method for high-rise building group
  • GPU and distributed computing-based earthquake damage analysis method for high-rise building group

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0030] Aiming at the massive calculation problem of the existing high-rise building group earthquake damage analysis, the present invention provides a high-rise building group seismic damage analysis method based on GPU and distributed computing.

[0031] The method flow is as follows figure 1 As shown, the method consists of two parts: 1. GPU-based linear equation solving (accelerated calculation for single building analysis); 2. Dynamic load balancing strategy (task allocation for group building analysis).

[0032] (1) GPU-based linear equation solving:

[0033] OpenSees is used as the post-earthquake analysis platform. OpenSees is an open source finite element software that is widely used all over the world. For OpenSees, when solving high-rise bui...

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Abstract

The invention provides a GPU and distributed computing-based earthquake damage analysis method for a high-rise building group, and belongs to the technical field of civil engineering disaster prevention and reduction. The method comprises two parts including GPU-based linear equation solving and a dynamic load balancing policy. The linear equation solving is a most time-consuming part in earthquake damage analysis. By utilizing a parallel computing advantage of a GPU, a GPU-based linear equation set solving algorithm is proposed for earthquake damage analysis of a single high-rise building, and algorithm development is performed by virtue of an open source earthquake damage analysis platform OpenSees to realize parallel acceleration of high-rise building individual analysis; and based on this, the dynamic load balancing policy suitable for the high-rise building group is proposed, different high-rise building individual computing tasks are reasonably allocated to different GPUs, and distributed computing of the high-rise building group is realized by utilizing a GPU cluster. 50 high-rise buildings are taken as objects, and the GPU-based distributed computing efficiency is improvedby 52 times in comparison with the single-machine efficiency. A high-performance computing means is provided for the earthquake damage analysis of the high-rise building group.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and reduction in civil engineering, in particular to a method for analyzing earthquake damage of high-rise building groups based on GPU and distributed computing. Background technique [0002] High-rise buildings are highly concentrated areas of people and property, and will also become a city's business card, such as Beijing's Guomao area, which has an extremely important status and value for the entire city, and its importance for disaster prevention is self-evident. However, among the 660 cities in the country, 74.5% are located in the earthquake zone, and about half of the cities are located in areas with a basic intensity of 7 degrees and above. Therefore, earthquake is an important natural disaster threat to high-rise buildings. It is very necessary to analyze the earthquake damage of high-rise buildings to provide an important basis for emergency management and disaster prevent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50G06F17/12G06F17/16
Inventor 许镇袁静雨张宗才
Owner UNIV OF SCI & TECH BEIJING
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