编译：mpicc intersect.c –o intersect

运行：可以使用命令 mpirun –np SIZE intersect来运行该串匹配程序，其中SIZE是所使用的处理器个数，本实例中使用了SIZE=3个处理器。

　　mpirun –np 3 intersect

运行结果：

输入：

please input first polygon

please input the count of vetex:3

please input the vertex

3 2

2 5

4 3

please input second polygon

please input the count of vetex:6

please input the vertex

0 1

1 -1

1 -2

6 2

5 4

1 4

输出：

两多边形相交

说明：输入顶点的(x,y)坐标时中间用空格隔开。

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Compile: mpicc intersect.c-o intersect

Run: You can use the command mpirun-np SIZE intersect to run the string matching procedure, which SIZE is the number of processors used in this instance the use of the SIZE = 3 processors.

mpirun-np 3 intersect

Run Results:

Input:

please input first polygon

please input the count of vetex: 3

please input the vertex

32

25

43

please input second polygon

please input the count of vetex: 6

please input the vertex

01

1-1

1-2

62

54

14

Output:

Intersection of two polygons

Descr iption: Enter the vertices (x, y) coordinates separated by a space.