79 lines
2 KiB
C
79 lines
2 KiB
C
#define _GNU_SOURCE
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#include "fmindex.h"
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#include "rapl.h"
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#include "util.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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// Global variables which can be accessed in function reference.
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unsigned pattern_count, pattern_sz, max_match_count;
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char *patterns;
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fm_index *fm;
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float total_time;
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unsigned long total_matches = 0;
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unsigned long *match_indices;
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static void benchmark(void) {
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float time1 = 0., time2 = 0.;
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float start_time, end_time;
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for (unsigned i = 0; i < pattern_count; ++i) {
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ranges_t start, end;
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start_time = (float)clock() / CLOCKS_PER_SEC;
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FMIndexFindMatchRange(fm, &patterns[i * pattern_sz], pattern_sz, &start,
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&end);
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end_time = (float)clock() / CLOCKS_PER_SEC;
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time1 += end_time - start_time;
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start_time = (float)clock() / CLOCKS_PER_SEC;
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FMIndexFindRangeIndices(fm, start, end, &match_indices);
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end_time = (float)clock() / CLOCKS_PER_SEC;
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time2 += end_time - start_time;
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total_matches += end - start;
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}
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total_time = time1 + time2;
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}
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int main(int argc, char **argv) {
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if (argc < 3) {
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fprintf(stderr, "Usage: $ %s <FMFILE> <TESTFILE>\n", argv[0]);
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return 1;
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}
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fm = FMIndexReadFromFile(argv[1], 0);
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if (!fm) {
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fprintf(stderr, "Failed to read FM-index from file.\n");
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return 1;
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}
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if (!(LoadTestData(argv[2], &patterns, &pattern_count, &pattern_sz,
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&max_match_count, 0))) {
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fprintf(stderr, "Could not read test data file.\n");
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return 1;
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}
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match_indices = calloc(max_match_count, sizeof(unsigned long));
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if (!match_indices) {
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fprintf(stderr, "Failed to allocate memory for match indices.\n");
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return 1;
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}
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double total_joules;
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if (rapl_sysfs(benchmark, &total_joules) != 0) {
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fprintf(stderr, "Failed to get energy consumption\n");
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return 1;
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}
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printf("%a %a %lu\n", total_time, total_joules, total_matches);
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free(match_indices);
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free(patterns);
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FMIndexFree(fm);
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return 0;
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}
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