61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
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#include <stdio.h>
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#include <getopt.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "timer.h"
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#include "util.h"
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#include "vec_add.h"
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// Usage: <program name> <vector size>
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static int N = 209715200;
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static void parse_opt(int argc, char **argv) {
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N = atoi(argv[1]);
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if (N % 4 != 0) {
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printf("N should be multiple of 4.\n");
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exit(0);
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}
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}
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int main(int argc, char **argv) {
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timer_init(9);
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parse_opt(argc, argv);
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float *A, *B, *C;
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printf("Initializing vectors...\n");
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alloc_vec(&A, N);
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alloc_vec(&B, N);
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alloc_vec(&C, N);
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rand_vec(A, N);
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rand_vec(B, N);
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printf("Initializing vectors done!\n");
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printf("Initializing...\n");
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vec_add_init(N);
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printf("Initializing done!\n");
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timer_reset(0);
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timer_reset(1);
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vec_add(A, B, C, N);
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double elapsed_time_normio = timer_read(0);
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printf("Elapsed time using normal I/O: %f sec\n", elapsed_time_normio);
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double elapsed_time_vecio = timer_read(1);
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printf("Elapsed time using vector I/O: %f sec\n", elapsed_time_vecio);
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printf("Finalizing...\n");
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vec_add_finalize();
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printf("Finalizing done!\n");
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free_vec(A);
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free_vec(B);
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free_vec(C);
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timer_finalize();
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return 0;
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}
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