Add graph references

references/igraph-1.0.1/tests/benchmarks/lad.c

@@ -0,0 +1,67 @@
+/*
+   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 match(const igraph_t *graph,
+           const igraph_t patt[], igraph_int_t n,
+           igraph_vector_int_list_t *maps) {
+
+    igraph_vector_int_list_clear(maps);
+    for (igraph_int_t i=0; i < n; i++) {
+        igraph_subisomorphic_lad(&patt[i], graph, NULL, NULL, NULL, maps, false);
+    }
+}
+
+#define NP 8
+
+int main(void) {
+    igraph_t graph;
+    igraph_t patt[NP];
+    igraph_vector_int_list_t maps;
+
+    BENCH_INIT();
+
+    igraph_vector_int_list_init(&maps, 0);
+
+    for (igraph_int_t i=0; i < NP; i++) {
+        igraph_ring(&patt[i], i+1, IGRAPH_DIRECTED, false, true);
+    }
+
+    igraph_kautz(&graph, 3, 3);
+    BENCH("1 Kautz(3,3) 10x", REPEAT(match(&graph, patt, NP, &maps), 10));
+    igraph_destroy(&graph);
+
+    igraph_kautz(&graph, 3, 4);
+    BENCH("2 Kautz(3,4) 3x", REPEAT(match(&graph, patt, NP, &maps), 3));
+    igraph_destroy(&graph);
+
+    igraph_kautz(&graph, 4, 3);
+    BENCH("3 Kautz(4,3) 1x", REPEAT(match(&graph, patt, NP, &maps), 1));
+    igraph_destroy(&graph);
+
+    for (igraph_int_t i=0; i < NP; i++) {
+        igraph_destroy(&patt[i]);
+    }
+
+    igraph_vector_int_list_destroy(&maps);
+
+    return 0;
+}