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#include <u.h>
#include <base.h>
#include <libmath.h>
#include <libmath/blas.h>
#include <time.h>
/* #include <vendor/blas/cblas.h> */
#define NCOL 2*512
#define NROW 2*512
#define NSUM 2*512
#define NIT 10
#define INC 1
error
main()
{
int i, j, nit;
double *x, *y, *z, *w, res[2];
clock_t t;
double tprof[2] = { 0 };
rng·init(0);
x = malloc(sizeof(*x)*NROW*NCOL);
y = malloc(sizeof(*x)*NROW*NCOL);
z = malloc(sizeof(*x)*NROW*NCOL);
w = malloc(sizeof(*x)*NROW*NCOL);
#define DO_0 t = clock(); \
blas·dgemm(0,0,NROW,NCOL,NSUM,10.1,x,NROW,y,NROW,1.2,z,NROW);\
t = clock() - t; \
res[0] += blas·dasum(NROW*NCOL,z,INC); \
tprof[0] += 1000.*t/CLOCKS_PER_SEC; \
#define DO_1 t = clock(); \
cblas_dgemm(CblasRowMajor,CblasNoTrans,CblasNoTrans,NROW,NCOL,NSUM,10.1,x,NROW,y,NROW,1.2,w,NROW);\
t = clock() - t; \
res[1] += cblas_dasum(NROW*NCOL,w,INC); \
tprof[1] += 1000.*t/CLOCKS_PER_SEC;
for (nit = 0; nit < NIT; nit++) {
for (i = 0; i < NROW; i++) {
for (j = 0; j < NCOL; j++) {
x[j + NROW*i] = rng·random();
y[j + NROW*i] = rng·random();
z[j + NROW*i] = rng·random();
w[j + NROW*i] = z[j + NROW*i];
}
}
switch (nit % 2) {
case 0: DO_0; DO_1; break;
case 1: DO_1; DO_0; break;
}
}
printf("mean time/iteration (mine): %fms\n", tprof[0]/NIT);
printf("--> result (mine): %f\n", res[0]);
printf("mean time/iteration (openblas): %fms\n", tprof[1]/NIT);
printf("--> result (openblas): %f\n", res[1]);
return 0;
}
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