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Concurrent land resource quality evaluation factor space quantifying method

A quality evaluation and land resource technology, applied in resource allocation, multi-programming devices, etc., can solve problems such as inefficiency, shortening working time, time-consuming, etc., and achieve the effect of improving computing efficiency, shortening working time, and improving work efficiency

Active Publication Date: 2012-09-26
WUHAN UNIV
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Problems solved by technology

[0011] Aiming at the inefficiency and time-consuming problems existing in the existing serial land resource quality evaluation factor spatial quantification method, the present invention will design spatial data decomposition parallel strategies to fully tap the computing potential of multi-core computers, improve the efficiency of space quantification of evaluation factors, and shorten working hours

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  • Concurrent land resource quality evaluation factor space quantifying method
  • Concurrent land resource quality evaluation factor space quantifying method
  • Concurrent land resource quality evaluation factor space quantifying method

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Embodiment Construction

[0033] The process flow of the parallel land resource quality evaluation factor space quantification method designed by the present invention is shown in the appendix figure 1 , computer software technology can be used to realize the automatic operation process. The specific implementation process of the embodiment is as follows:

[0034] Step 1, perform parallel discretization on the evaluation space region, including the following sub-steps,

[0035] In step 1.1, according to the number N of computer CPUs, the evaluation space area is divided into N sub-areas by means of data horizontal decomposition.

[0036] Assuming that the number of available CPUs is N, the embodiment decomposes the evaluation area into N sub-areas, which are respectively marked as {n1, n2, n3...nN}.

[0037] Step 1.2, assign N sub-regions to N CPU processes, each CPU process discretizes a sub-region into a grid of fixed size, and outputs the discrete results in the sub-regions respectively, and the d...

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Abstract

The invention relates to a concurrent land resource quality evaluation factor space quantifying method which comprises performing concurrent discretization to an evaluated space region; layering land resource quality evaluation factors; and performing concurrent space quantifying to land resource quality evaluation factors. The concurrent land resource quality evaluation factor space quantifying method generally has the advantages of simplicity and quickness, and is applicable to being carried out on personnel computers with multiple CPUs (central processing units) and multiple cores, small work stations and computer clusters. The concurrent land resource quality evaluation factor space quantifying method plays an important practical significance in sufficiently playing hardware computing proficiency of a current computer, shortening land evaluation work time and increasing work efficiency.

Description

technical field [0001] The invention belongs to the technical field of land resource quality evaluation, in particular to a parallel space quantification method for land resource quality evaluation factors. Background technique [0002] (1) Land resource quality evaluation technology [0003] With the advent of the 21st century, many global issues, such as population issues and food security issues, are becoming more and more severe. As a country with a large population, land resources are relatively scarce in China. How to use land rationally and realize the sustainable use of land resources is an urgent problem to be solved at present. Therefore, using scientific technical means and methods to evaluate the quality of land resources is a necessary means to promote the rational use of land resources. [0004] According to the definition of the Food and Agriculture Organization of the United Nations (FAO), land resource quality evaluation (referred to as "land evaluation") ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/50
Inventor 刘耀林赵翔刘殿锋何建华焦利民唐旭
Owner WUHAN UNIV
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