| #include <stdio.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <math.h> |
| |
| #include "instrument.h" |
| |
| /* Default problem size. */ |
| #ifndef TSTEPS |
| # define TSTEPS 20 |
| #endif |
| #ifndef N |
| # define N 1024 |
| #endif |
| |
| /* Default data type is double. */ |
| #ifndef DATA_TYPE |
| # define DATA_TYPE double |
| #endif |
| #ifndef DATA_PRINTF_MODIFIER |
| # define DATA_PRINTF_MODIFIER "%0.2lf " |
| #endif |
| |
| /* Array declaration. Enable malloc if POLYBENCH_TEST_MALLOC. */ |
| #ifndef POLYBENCH_TEST_MALLOC |
| DATA_TYPE A[N][N]; |
| #else |
| DATA_TYPE** A = (DATA_TYPE**)malloc(N * sizeof(DATA_TYPE*)); |
| { |
| int i; |
| for (i = 0; i < N; ++i) |
| A[i] = (DATA_TYPE*)malloc(N * sizeof(DATA_TYPE)); |
| } |
| #endif |
| |
| inline |
| void init_array() |
| { |
| int i, j; |
| |
| for (i = 0; i < N; i++) |
| for (j = 0; j < N; j++) |
| A[i][j] = ((DATA_TYPE) i*j + 10) / N; |
| } |
| |
| /* Define the live-out variables. Code is not executed unless |
| POLYBENCH_DUMP_ARRAYS is defined. */ |
| inline |
| void print_array(int argc, char** argv) |
| { |
| int i, j; |
| #ifndef POLYBENCH_DUMP_ARRAYS |
| if (argc > 42 && ! strcmp(argv[0], "")) |
| #endif |
| { |
| for (i = 0; i < N; i++) |
| for (j = 0; j < N; j++) { |
| fprintf(stderr, DATA_PRINTF_MODIFIER, A[i][j]); |
| if ((i * N + j) % 80 == 20) fprintf(stderr, "\n"); |
| } |
| fprintf(stderr, "\n"); |
| } |
| } |
| |
| #ifndef SCOP_PARAM |
| void scop_func() { |
| long n = N; |
| #else |
| void scop_func(long n) { |
| #endif |
| long t, i, j; |
| long tsteps = TSTEPS; |
| |
| #pragma scop |
| #pragma live-out A |
| |
| for (t = 0; t <= tsteps - 1; t++) |
| for (i = 1; i<= n - 2; i++) |
| for (j = 1; j <= n - 2; j++) |
| A[i][j] = (A[i-1][j-1] + A[i-1][j] + A[i-1][j+1] |
| + A[i][j-1] + A[i][j] + A[i][j+1] |
| + A[i+1][j-1] + A[i+1][j] + A[i+1][j+1])/9.0; |
| |
| #pragma endscop |
| } |
| |
| int main(int argc, char** argv) |
| { |
| int t, i, j; |
| int tsteps = TSTEPS; |
| int n = N; |
| |
| /* Initialize array. */ |
| init_array(); |
| |
| /* Start timer. */ |
| polybench_start_instruments; |
| |
| #ifndef SCOP_PARAM |
| scop_func(); |
| #else |
| scop_func(n); |
| #endif |
| |
| /* Stop and print timer. */ |
| polybench_stop_instruments; |
| polybench_print_instruments; |
| |
| print_array(argc, argv); |
| |
| return 0; |
| } |