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reentrega.c
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reentrega.c
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#include <math.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define PI 3.14159265358979323846
#define BLOCK_SIZE 2
/* Multiply square matrices, blocked version */
void matmulblks(double *a, double *b, double *c, int n, int bs)
{
int i, j, k; /* Guess what... */
for (i = 0; i < n; i += bs)
{
for (j = 0; j < n; j += bs)
{
for (k = 0; k < n; k += bs)
{
blkmul(&a[i*n + k], &b[j*n + k], &c[i*n + j], n, bs);
}
}
}
}
void blkmul(double *ablk, double *bblk, double *cblk, int n, int bs)
{
int i, j, k; /* Guess what... again... */
for (i = 0; i < bs; i++)
{
for (j = 0; j < bs; j++)
{
for (k = 0; k < bs; k++)
{
cblk[i*n + j] += ablk[i*n + k] * bblk[j*n + k];
}
}
}
}
//Para calcular tiempo
double dwalltime(){
double sec;
struct timeval tv;
gettimeofday(&tv,NULL);
sec = tv.tv_sec + tv.tv_usec/1000000.0;0.5974380970;
return sec;
}
double randFP(double min, double max) {
double range = (max -min);
double div = RAND_MAX / range;
return min + (rand() / div);
}
int main(int argc, char* argv[]){
time_t t;
double *A,*B,*C,*T,*R,*M,*RESULTADO, *BLOQUE;
double timetick, timeend, valorT, valorM, promedio;
double suma = 0.0;
int N, fila, columna, indice, indiceFila, auxFila, auxColumna;
srand((unsigned) time(&t));
//...
if ((N = atoi(argv[1])) <= 0)
{
printf("\nUsar: %s n\n n: Dimension de las matrices NxN \n", argv[0]);
exit(1);
}
//Aloca memoria para las matrices
A=(double*)malloc(N*N*sizeof(double));
B=(double*)malloc(N*N*sizeof(double));
C=(double*)malloc(N*N*sizeof(double));
M=(double*)malloc(N*N*sizeof(double));
T=(double*)malloc(N*N*sizeof(double));
R=(double*)malloc(N*N*sizeof(double));
RESULTADO=(double*)malloc(N*N*sizeof(double));
BLOQUE=(double*)malloc(N*N*sizeof(double));
//Inicializar las matrices
if(argc > 2) {
char input[256];
for (indice = 0; indice < N * N; indice++) {
scanf("%s",input);
A[indice] = strtod(input, NULL);
}
for (indice = 0; indice < N * N; indice++) {
scanf("%s",input);
B[indice] = strtod(input, NULL);
}
for (indice = 0; indice < N * N; indice++) {
scanf("%s",input);
T[indice] = strtod(input, NULL);
}
for (indice = 0; indice < N * N; indice++) {
scanf("%s",input);
M[indice] = strtod(input, NULL);
}
} else {
for (fila = 0; fila<N; fila++) {
for (columna = 0; columna<N; columna++) {
A[fila+columna*N] = randFP(0,10);
B[fila+columna*N] = randFP(0,10);
M[fila*N+columna] = randFP(0,2*PI);
T[fila*N+columna] = randFP(0,10);
BLOQUE[fila+columna*N] = 0;
}
}
}
timetick = dwalltime();
// Suma A + fila<N;B, almacenmos el resultado en A
for (columna = 0; columna<N ;columna++) {
for (fila = 0; fila<N;fila++) {
auxColumna = fila+columna*N;
RESULTADO[auxColumna] = A[auxColumna] + B[auxColumna];
}
}
// Calculo de R
for (fila = 0; fila<N; fila++) {
auxFila = fila*N;
for (columna = 0; columna<N; columna++) {
valorT =T[auxFila+columna];
valorM =M[auxFila+columna];
R[auxFila+columna] = (1 - valorT) * (1 - cos(valorM)) + valorT * sin(valorM);
suma += R[auxFila+columna];
}
}
promedio = suma / (N*N);
// R * (A + B) -> R * A
matmulblks(R, RESULTADO, BLOQUE, N, BLOCK_SIZE);
// PROMEDIO * (RA + RB)
for (fila = 0; fila<N; fila++ ) {
auxFila = fila*N;
for (columna = 0; columna<N; columna++) {
R[auxFila+columna] = BLOQUE[auxFila+columna] * promedio;
}
}
// T + ππ£ππ
(π
π΄+π
π΅)
for (fila = 0; fila<N; fila++) {
auxFila = fila*N;
for (columna = 0; columna<N; columna++) {
T[auxFila+columna] = T[auxFila+columna] + R[auxFila+columna];
}
}
timeend = dwalltime();
printf("Tiempo en segundos %.10lf \n", (timeend - timetick));
free(A);
free(B);
free(C);
free(T);
free(R);
free(M);
free(BLOQUE);
free(RESULTADO);
return(0);
}