文件名称:3pcf
- 所属分类:
- Linux/Unix编程
- 资源属性:
- [C/C++] [源码]
- 上传时间:
- 2012-11-26
- 文件大小:
- 1kb
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- 0次
- 提 供 者:
- Junk*****
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3PCF计算多线程实现
定义:
点集D、R。
定义D中的点为ai∈D,R中的点为bi∈R。
距离:r1、r2、r3、err
求:
满足以下条件的三元组(空间中三角形)的数目
<ai, bm, bn>,|ai-bm|=r1±err且|ai-bn|=r2±err且|bm-bn|=r3±err
原始解法:
对于D中每一点ai,在R中找到与之距离为r1的点集R’,找到与之距离为r2的点集R’’。在点集R’与R’’中,查找两点间距离为r3的点组数目。累加。 -3PCF Multithread computing definition: point sets D, R. The point of the definition of D ai ∈ D, R in the point of bi ∈ R. Distance: r1, r2, r3, err requirements: the triple meet the following conditions (space triangle) the number of <ai, bm, bn> , | Ai-bm | = r1 ± err and | ai-bn | = r2 ± err and | bm-bn | = r3 ± err original solution: For D, each point ai, found in R with the distance r1 point set R ' , find the point with a distance r2 set R' ' . In the point set R ' and R' ' , find the distance between two points in the point group for the number of r3. Accumulation.
定义:
点集D、R。
定义D中的点为ai∈D,R中的点为bi∈R。
距离:r1、r2、r3、err
求:
满足以下条件的三元组(空间中三角形)的数目
<ai, bm, bn>,|ai-bm|=r1±err且|ai-bn|=r2±err且|bm-bn|=r3±err
原始解法:
对于D中每一点ai,在R中找到与之距离为r1的点集R’,找到与之距离为r2的点集R’’。在点集R’与R’’中,查找两点间距离为r3的点组数目。累加。 -3PCF Multithread computing definition: point sets D, R. The point of the definition of D ai ∈ D, R in the point of bi ∈ R. Distance: r1, r2, r3, err requirements: the triple meet the following conditions (space triangle) the number of <ai, bm, bn> , | Ai-bm | = r1 ± err and | ai-bn | = r2 ± err and | bm-bn | = r3 ± err original solution: For D, each point ai, found in R with the distance r1 point set R ' , find the point with a distance r2 set R' ' . In the point set R ' and R' ' , find the distance between two points in the point group for the number of r3. Accumulation.
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3pcf.c