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Multi-core processor-based earthquake data quick access method

A multi-core processor, seismic data technology, applied in the field of geological exploration, can solve problems such as restricting the running speed of application programs, and achieve the effects of efficient and fast access, good scalability, and stable acceleration ratio

Pending Publication Date: 2016-11-09
BGP OF CHINA NAT GASOLINEEUM CORP
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in the processing and operation of massive seismic data, data access between memory and auxiliary memory often becomes the bottleneck restricting the running speed of the application program, so that the superior hardware performance of the multi-core processor of the high-performance computer cannot be well utilized.

Method used

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Embodiment Construction

[0016] Hereinafter, the method for quickly accessing seismic data based on a multi-core processor according to the present invention will be described in detail with reference to exemplary embodiments.

[0017] The invention proposes a multi-core processor-based quick access method for seismic data. The basic idea of ​​this method is: based on the principle of multi-core processor parallel computing and linux system memory-mapped file technology, through the execution of parallel memory-mapped task allocation and division in the multi-core processor hardware environment, efficient and fast access to seismic data is realized.

[0018] Among them, the memory-mapped file is somewhat similar to the virtual memory. Through the memory-mapped file, an area of ​​the address space can be reserved, and the physical memory can be submitted to this area at the same time, but the physical memory mapped by the memory file comes from a file that already exists on the disk. It is not a system...

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Abstract

The invention provides a multi-core processor-based earthquake data quick access method. According to the method, quick access of earthquake data is realized by performing parallel memory mapping task allocation and division in a hardware environment of a multi-core processor based on a multi-core processor parallel computing and linux system memory mapping file technology principle; and moreover, the method has high expansibility for a situation that the data scale is increased, has a certain reference effect for the data quick access problem in the field of big data processing in a multi-core processor computer environment, and has very good application prospects in the aspect of processing of massive data in petroleum seismic exploration information.

Description

technical field [0001] The invention relates to the technical field of geological exploration, and more specifically, relates to a method for quickly accessing massive seismic data. Background technique [0002] In the current oil and gas seismic exploration work, due to the popularization and application of vibroseis high-efficiency acquisition technology and the rapid development of high-density 3D seismic exploration, the higher the sampling accuracy of seismic observation, the larger the collected data. The amount of collected data grows exponentially, from 2 to 3TB to 50TB or even larger. Such a large scale puts forward new requirements for fast access and processing technology of seismic data. Although through the input of hardware such as high-performance computer clusters, the parallel processing of multi-core computers can already complete many large-scale computing tasks. However, in the processing and operation of massive seismic data, the data access between me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/0806G06F12/0846
CPCG06F12/0806G06F12/0846
Inventor 李振金德刚李磊巫骏陈波陈丹曹中林
Owner BGP OF CHINA NAT GASOLINEEUM CORP
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