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https://github.com/Steffo99/unimore-hpc-assignments.git
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111 lines
3 KiB
C
111 lines
3 KiB
C
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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/* Include polybench common header. */
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#include <polybench.h>
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/* Include benchmark-specific header. */
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/* Default data type is double, default size is 4000. */
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#include "doitgen.h"
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/* Array initialization. */
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static void init_array(int nr, int nq, int np,
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DATA_TYPE POLYBENCH_3D(A, NR, NQ, NP, nr, nq, np),
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DATA_TYPE POLYBENCH_2D(C4, NP, NP, np, np))
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{
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int i, j, k;
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for (i = 0; i < nr; i++)
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for (j = 0; j < nq; j++)
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for (k = 0; k < np; k++)
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A[i][j][k] = ((DATA_TYPE)i * j + k) / np;
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for (i = 0; i < np; i++)
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for (j = 0; j < np; j++)
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C4[i][j] = ((DATA_TYPE)i * j) / np;
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}
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/* DCE code. Must scan the entire live-out data.
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Can be used also to check the correctness of the output. */
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static void print_array(int nr, int nq, int np,
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DATA_TYPE POLYBENCH_3D(A, NR, NQ, NP, nr, nq, np))
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{
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int i, j, k;
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for (i = 0; i < nr; i++)
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for (j = 0; j < nq; j++)
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for (k = 0; k < np; k++)
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{
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fprintf(stderr, DATA_PRINTF_MODIFIER, A[i][j][k]);
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if (i % 20 == 0)
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fprintf(stderr, "\n");
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}
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fprintf(stderr, "\n");
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}
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/* Main computational kernel. The whole function will be timed,
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including the call and return. */
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static void kernel_doitgen(int nr, int nq, int np,
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DATA_TYPE POLYBENCH_3D(A, NR, NQ, NP, nr, nq, np),
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DATA_TYPE POLYBENCH_2D(C4, NP, NP, np, np),
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DATA_TYPE POLYBENCH_3D(sum, NR, NQ, NP, nr, nq, np))
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{
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int r, q, p, s;
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for (r = 0; r < _PB_NR; r++)
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for (q = 0; q < _PB_NQ; q++)
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{
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for (p = 0; p < _PB_NP; p++)
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{
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sum[r][q][p] = 0;
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for (s = 0; s < _PB_NP; s++)
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sum[r][q][p] = sum[r][q][p] + A[r][q][s] * C4[s][p];
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}
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for (p = 0; p < _PB_NR; p++)
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A[r][q][p] = sum[r][q][p];
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}
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}
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int main(int argc, char **argv)
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{
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/* Retrieve problem size. */
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int nr = NR;
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int nq = NQ;
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int np = NP;
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/* Variable declaration/allocation. */
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POLYBENCH_3D_ARRAY_DECL(A, DATA_TYPE, NR, NQ, NP, nr, nq, np);
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POLYBENCH_3D_ARRAY_DECL(sum, DATA_TYPE, NR, NQ, NP, nr, nq, np);
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POLYBENCH_2D_ARRAY_DECL(C4, DATA_TYPE, NP, NP, np, np);
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/* Initialize array(s). */
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init_array(nr, nq, np,
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POLYBENCH_ARRAY(A),
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POLYBENCH_ARRAY(C4));
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/* Start timer. */
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polybench_start_instruments;
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/* Run kernel. */
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kernel_doitgen(nr, nq, np,
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POLYBENCH_ARRAY(A),
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POLYBENCH_ARRAY(C4),
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POLYBENCH_ARRAY(sum));
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/* Stop and print timer. */
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polybench_stop_instruments;
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polybench_print_instruments;
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/* Prevent dead-code elimination. All live-out data must be printed
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by the function call in argument. */
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polybench_prevent_dce(print_array(nr, nq, np, POLYBENCH_ARRAY(A)));
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/* Be clean. */
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POLYBENCH_FREE_ARRAY(A);
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POLYBENCH_FREE_ARRAY(sum);
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POLYBENCH_FREE_ARRAY(C4);
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return 0;
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}
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