ICPSEP Content

107 例子：结构

struct { 
    char     display[50];   /* Name of display */ 
    int      maxiter;       /* max # of iterations */ 
    double   xmin, ymin;    /* lower left corner of rectangle */ 
    double   xmax, ymax;    /* upper right corner */ 
    int      width;         /* of display in pixels */ 
    int      height;        /* of display in pixels */ 
} cmdline;

/* set up 4 blocks */ 
int          blockcounts[4] = {50,1,4,2}; 
MPI_Datatype types[4]; 
MPI_Aint     displs[4]; 
MPI_Datatype cmdtype;