mirror of
https://github.com/Steffo99/unimore-hpc-assignments.git
synced 2024-11-30 03:54:20 +00:00
141 lines
3.9 KiB
C
141 lines
3.9 KiB
C
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
/* Include polybench common header. */
|
|
#include <polybench.h>
|
|
|
|
/* Include benchmark-specific header. */
|
|
/* Default data type is double, default size is 4000. */
|
|
#include "2mm.h"
|
|
|
|
/* Array initialization. */
|
|
static void init_array(int ni, int nj, int nk, int nl,
|
|
DATA_TYPE *alpha,
|
|
DATA_TYPE *beta,
|
|
DATA_TYPE POLYBENCH_2D(A, NI, NK, ni, nl),
|
|
DATA_TYPE POLYBENCH_2D(B, NK, NJ, nk, nj),
|
|
DATA_TYPE POLYBENCH_2D(C, NL, NJ, nl, nj),
|
|
DATA_TYPE POLYBENCH_2D(D, NI, NL, ni, nl))
|
|
{
|
|
int i, j;
|
|
|
|
*alpha = 32412;
|
|
*beta = 2123;
|
|
for (i = 0; i < ni; i++)
|
|
for (j = 0; j < nk; j++)
|
|
A[i][j] = ((DATA_TYPE)i * j) / ni;
|
|
for (i = 0; i < nk; i++)
|
|
for (j = 0; j < nj; j++)
|
|
B[i][j] = ((DATA_TYPE)i * (j + 1)) / nj;
|
|
for (i = 0; i < nl; i++)
|
|
for (j = 0; j < nj; j++)
|
|
C[i][j] = ((DATA_TYPE)i * (j + 3)) / nl;
|
|
for (i = 0; i < ni; i++)
|
|
for (j = 0; j < nl; j++)
|
|
D[i][j] = ((DATA_TYPE)i * (j + 2)) / nk;
|
|
}
|
|
|
|
/* DCE code. Must scan the entire live-out data.
|
|
Can be used also to check the correctness of the output. */
|
|
static void print_array(int ni, int nl,
|
|
DATA_TYPE POLYBENCH_2D(D, NI, NL, ni, nl))
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < ni; i++)
|
|
for (j = 0; j < nl; j++)
|
|
{
|
|
fprintf(stderr, DATA_PRINTF_MODIFIER, D[i][j]);
|
|
if ((i * ni + j) % 20 == 0)
|
|
fprintf(stderr, "\n");
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
/* Main computational kernel. The whole function will be timed,
|
|
including the call and return. */
|
|
static void kernel_2mm(int ni, int nj, int nk, int nl,
|
|
DATA_TYPE alpha,
|
|
DATA_TYPE beta,
|
|
DATA_TYPE POLYBENCH_2D(tmp, NI, NJ, ni, nj),
|
|
DATA_TYPE POLYBENCH_2D(A, NI, NK, ni, nk),
|
|
DATA_TYPE POLYBENCH_2D(B, NK, NJ, nk, nj),
|
|
DATA_TYPE POLYBENCH_2D(C, NL, NJ, nl, nj),
|
|
DATA_TYPE POLYBENCH_2D(D, NI, NL, ni, nl))
|
|
{
|
|
int i, j, k;
|
|
|
|
/* D := alpha*A*B*C + beta*D */
|
|
{
|
|
for (i = 0; i < _PB_NI; i++)
|
|
for (j = 0; j < _PB_NJ; j++)
|
|
{
|
|
tmp[i][j] = 0;
|
|
for (k = 0; k < _PB_NK; ++k)
|
|
tmp[i][j] += alpha * A[i][k] * B[k][j];
|
|
}
|
|
for (i = 0; i < _PB_NI; i++)
|
|
for (j = 0; j < _PB_NL; j++)
|
|
{
|
|
D[i][j] *= beta;
|
|
for (k = 0; k < _PB_NJ; ++k)
|
|
D[i][j] += tmp[i][k] * C[k][j];
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
/* Retrieve problem size. */
|
|
int ni = NI;
|
|
int nj = NJ;
|
|
int nk = NK;
|
|
int nl = NL;
|
|
|
|
/* Variable declaration/allocation. */
|
|
DATA_TYPE alpha;
|
|
DATA_TYPE beta;
|
|
POLYBENCH_2D_ARRAY_DECL(tmp, DATA_TYPE, NI, NJ, ni, nj);
|
|
POLYBENCH_2D_ARRAY_DECL(A, DATA_TYPE, NI, NK, ni, nk);
|
|
POLYBENCH_2D_ARRAY_DECL(B, DATA_TYPE, NK, NJ, nk, nj);
|
|
POLYBENCH_2D_ARRAY_DECL(C, DATA_TYPE, NL, NJ, nl, nj);
|
|
POLYBENCH_2D_ARRAY_DECL(D, DATA_TYPE, NI, NL, ni, nl);
|
|
|
|
/* Initialize array(s). */
|
|
init_array(ni, nj, nk, nl, &alpha, &beta,
|
|
POLYBENCH_ARRAY(A),
|
|
POLYBENCH_ARRAY(B),
|
|
POLYBENCH_ARRAY(C),
|
|
POLYBENCH_ARRAY(D));
|
|
|
|
/* Start timer. */
|
|
polybench_start_instruments;
|
|
|
|
/* Run kernel. */
|
|
kernel_2mm(ni, nj, nk, nl,
|
|
alpha, beta,
|
|
POLYBENCH_ARRAY(tmp),
|
|
POLYBENCH_ARRAY(A),
|
|
POLYBENCH_ARRAY(B),
|
|
POLYBENCH_ARRAY(C),
|
|
POLYBENCH_ARRAY(D));
|
|
|
|
/* Stop and print timer. */
|
|
polybench_stop_instruments;
|
|
polybench_print_instruments;
|
|
|
|
/* Prevent dead-code elimination. All live-out data must be printed
|
|
by the function call in argument. */
|
|
polybench_prevent_dce(print_array(ni, nl, POLYBENCH_ARRAY(D)));
|
|
|
|
/* Be clean. */
|
|
POLYBENCH_FREE_ARRAY(tmp);
|
|
POLYBENCH_FREE_ARRAY(A);
|
|
POLYBENCH_FREE_ARRAY(B);
|
|
POLYBENCH_FREE_ARRAY(C);
|
|
POLYBENCH_FREE_ARRAY(D);
|
|
|
|
return 0;
|
|
}
|