Part I: Sample Program π Computation g Integration formula of T 4 1+x d=>,+05y2N 1=01+( aA sequential c code to compute T: #definen 1000000 main double local, pi=0.0. w: ng 1, 10/N; for(i=0i<N计i++){ local=(+0.5)*w; pi=pi+4.0/(1.0+local*local) printf("pi is %f、n”pi*w) NHPCC(Hefei)·USTC· CHINA glchenaustc edu.ciNHPCC(Hefei) •USTC •CHINA glchen@ustc.edu.cn p Computation + Integration formula of p : + A sequential C code to compute p : #define N 1000000 main(){ double local,pi=0.0,w; long i; w=1.0/N; for (i=0;i<N;i++){ local=(i+0.5)*w; pi=pi+4.0/(1.0+local*local); } printf(“pi is %f\n”,pi*w); } Part III:Sample Program 4 3 2 1 0 1 ò å - = ´ + + » + = 1 0 1 0 2 2 1 ) 0.5 1 ( 4 1 4 N i N N i dx x p 3 - 6