Abdelrahman Said
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
|
|
igraph library.
|
|
Copyright (C) 2024 The igraph development team <igraph@igraph.org>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <igraph.h>
|
|
|
|
#include "bench.h"
|
|
|
|
void rand_vec(igraph_vector_int_t *v, igraph_int_t n, igraph_int_t k) {
|
|
igraph_vector_int_resize(v, n);
|
|
for (igraph_int_t i=0; i < n; i++) {
|
|
VECTOR(*v)[i] = RNG_INTEGER(0, k);
|
|
}
|
|
}
|
|
|
|
void run_bench(int i, int n, int r) {
|
|
igraph_vector_int_t a, b;
|
|
igraph_int_t na = n, nb = r*n;
|
|
int rep = 300000000 / nb;
|
|
char msg[255];
|
|
|
|
igraph_vector_int_init(&a, na);
|
|
igraph_vector_int_init(&b, nb);
|
|
|
|
rand_vec(&a, na, nb);
|
|
igraph_vector_int_sort(&a);
|
|
rand_vec(&b, nb, nb);
|
|
igraph_vector_int_sort(&b);
|
|
|
|
snprintf(msg, sizeof(msg) / sizeof(msg[0]),
|
|
"%2d n = %5d, r = %3d, %dx", i, n, r, rep);
|
|
|
|
/* 'volatile' is needed to prevent the compiler from optimizing
|
|
* away multiple calls to the function with the same parameters within REPEAT.
|
|
* This would normally happen due to the use of IGRAPH_FUNCATTR_PURE.
|
|
* ATTENTION! 'volatile', when used this way, may not prevent this optimization
|
|
* with future compiler versions. */
|
|
volatile igraph_int_t res;
|
|
BENCH(msg, REPEAT(res = igraph_vector_int_intersection_size_sorted(&a, &b), rep));
|
|
(void) res; /* silence unused-but-set-variable warning */
|
|
|
|
igraph_vector_int_destroy(&a);
|
|
igraph_vector_int_destroy(&b);
|
|
}
|
|
|
|
int main(void) {
|
|
int i = 0;
|
|
|
|
igraph_rng_seed(igraph_rng_default(), 137);
|
|
BENCH_INIT();
|
|
|
|
#define BENCHSET(n) \
|
|
run_bench(++i, n, 1); \
|
|
run_bench(++i, n, 3); \
|
|
run_bench(++i, n, 10); \
|
|
run_bench(++i, n, 30); \
|
|
run_bench(++i, n, 100); \
|
|
printf("\n");
|
|
|
|
BENCHSET(1);
|
|
BENCHSET(3);
|
|
BENCHSET(10);
|
|
BENCHSET(30);
|
|
BENCHSET(100);
|
|
BENCHSET(300);
|
|
BENCHSET(1000);
|
|
BENCHSET(3000);
|
|
BENCHSET(10000);
|
|
BENCHSET(30000);
|
|
BENCHSET(100000);
|
|
|
|
return 0;
|
|
}
|