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-rw-r--r--lib/cluster.h10
-rw-r--r--lib/graph.c67
-rw-r--r--lib/graph.cpp37
-rw-r--r--lib/graph.h27
-rw-r--r--lib/state.h13
5 files changed, 55 insertions, 99 deletions
diff --git a/lib/cluster.h b/lib/cluster.h
index 3261969..03b0ac0 100644
--- a/lib/cluster.h
+++ b/lib/cluster.h
@@ -36,11 +36,7 @@ void flip_cluster(state_t <R_t, X_t> *state, v_t v0, R_t r, gsl_rng *rand) {
si_new = act (r, si_old);
}
- v_t nn = state->g->v_i[v + 1] - state->g->v_i[v];
-
- for (v_t i = 0; i < nn; i++) {
- v_t vn = state->g->v_adj[state->g->v_i[v] + i];
-
+ for (v_t vn : state->g.v_adj[v]) {
X_t sj;
if (vn != state->nv) {
@@ -101,7 +97,7 @@ void flip_cluster(state_t <R_t, X_t> *state, v_t v0, R_t r, gsl_rng *rand) {
}
}
- if (v == state->g->nv - 1) {
+ if (v == state->nv) {
free_spin(state->R);
state->R = R_new;
} else {
@@ -109,7 +105,7 @@ void flip_cluster(state_t <R_t, X_t> *state, v_t v0, R_t r, gsl_rng *rand) {
state->spins[v] = si_new;
}
- if (v != state->g->nv - 1) { // count the number of non-external sites that flip
+ if (v != state->nv) { // count the number of non-external sites that flip
nv++;
}
}
diff --git a/lib/graph.c b/lib/graph.c
deleted file mode 100644
index a1edf13..0000000
--- a/lib/graph.c
+++ /dev/null
@@ -1,67 +0,0 @@
-
-#include "graph.h"
-
-graph_t *graph_create_square(D_t D, L_t L) {
- v_t nv = pow(L, D);
- v_t ne = D * nv;
-
- v_t *v_i = (v_t *)malloc((nv + 1) * sizeof(v_t));
-
- for (v_t i = 0; i < nv + 1; i++) {
- v_i[i] = 2 * D * i;
- }
-
- v_t *v_adj = (v_t *)malloc(2 * D * nv * sizeof(v_t));
-
- for (v_t i = 0; i < nv; i++) {
- for (D_t j = 0; j < D; j++) {
- v_adj[v_i[i] + 2 * j] = pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(i + pow(L, j), pow(L, j + 1));
- v_adj[v_i[i] + 2 * j + 1] = pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(pow(L, j+1) + i - pow(L, j), pow(L, j + 1));
- }
- }
-
- graph_t *g = (graph_t *)malloc(sizeof(graph_t));
-
- g->ne = ne;
- g->nv = nv;
- g->v_i = v_i;
- g->v_adj = v_adj;
-
- return g;
-}
-
-graph_t *graph_add_ext(const graph_t *G) {
- graph_t *tG = (graph_t *)calloc(1, sizeof(graph_t));
-
- tG->nv = G->nv + 1;
- tG->ne = G->ne + G->nv;
-
- tG->v_i = (v_t *)malloc((tG->nv + 1) * sizeof(v_t));
- tG->v_adj = (v_t *)malloc(2 * tG->ne * sizeof(v_t));
-
- for (v_t i = 0; i < G->nv + 1; i++) {
- tG->v_i[i] = G->v_i[i] + i;
- }
-
- tG->v_i[tG->nv] = 2 * tG->ne;
-
- for (v_t i = 0; i < G->nv; i++) {
- v_t nn = G->v_i[i + 1] - G->v_i[i];
-
- for (v_t j = 0; j < nn; j++) {
- tG->v_adj[tG->v_i[i] + j] = G->v_adj[G->v_i[i] + j];
- }
-
- tG->v_adj[tG->v_i[i] + nn] = G->nv;
- tG->v_adj[tG->v_i[G->nv] + i] = i;
- }
-
- return tG;
-}
-
-void graph_free(graph_t *g) {
- free(g->v_i);
- free(g->v_adj);
- free(g);
-}
-
diff --git a/lib/graph.cpp b/lib/graph.cpp
new file mode 100644
index 0000000..021873d
--- /dev/null
+++ b/lib/graph.cpp
@@ -0,0 +1,37 @@
+
+#include "graph.h"
+
+graph_t::graph_t(D_t D, L_t L) {
+ nv = pow(L, D);
+ ne = D * nv;
+
+ v_adj.resize(nv);
+
+ for (std::vector<v_t> v_adj_i : v_adj) {
+ v_adj_i.reserve(2 * D);
+ }
+
+ for (v_t i = 0; i < nv; i++) {
+ for (D_t j = 0; j < D; j++) {
+ v_adj[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(i + pow(L, j), pow(L, j + 1)));
+ v_adj[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(pow(L, j+1) + i - pow(L, j), pow(L, j + 1)));
+ }
+ }
+}
+
+void graph_t::add_ext() {
+ for (std::vector<v_t> v_adj_i : v_adj) {
+ v_adj_i.push_back(nv);
+ }
+
+ v_adj.resize(nv + 1);
+ v_adj[nv].reserve(nv);
+
+ for (v_t i = 0; i < nv; i++) {
+ v_adj[nv].push_back(i);
+ }
+
+ ne += nv;
+ nv += 1;
+}
+
diff --git a/lib/graph.h b/lib/graph.h
index beb7f4c..a4732fb 100644
--- a/lib/graph.h
+++ b/lib/graph.h
@@ -2,27 +2,20 @@
#pragma once
#include <inttypes.h>
-#include <math.h>
+#include <cmath>
#include <stdlib.h>
+#include <vector>
#include "types.h"
-#ifdef __cplusplus
-extern "C" {
-#endif
+class graph_t {
+ public:
+ v_t ne;
+ v_t nv;
+ std::vector<std::vector<v_t>> v_adj;
-typedef struct {
- v_t ne;
- v_t nv;
- v_t *v_i;
- v_t *v_adj;
-} graph_t;
+ graph_t(D_t D, L_t L);
+ void add_ext();
-graph_t *graph_create_square(D_t D, L_t L);
-graph_t *graph_add_ext(const graph_t *G);
-void graph_free(graph_t *h);
-
-#ifdef __cplusplus
-}
-#endif
+};
diff --git a/lib/state.h b/lib/state.h
index 3c6cafa..3cef157 100644
--- a/lib/state.h
+++ b/lib/state.h
@@ -13,7 +13,7 @@ class state_t {
L_t L;
v_t nv;
v_t ne;
- graph_t *g;
+ graph_t g;
double T;
X_t *spins;
R_t R;
@@ -29,12 +29,10 @@ class state_t {
std::function <double(X_t, X_t)> J;
std::function <double(X_t)> H;
- state_t(D_t D, L_t L, double T, std::function <double(X_t, X_t)> J, std::function <double(X_t)> H) : D(D), L(L), T(T), J(J), H(H) {
- graph_t *h = graph_create_square(D, L);
- nv = h->nv;
- ne = h->ne;
- g = graph_add_ext(h);
- graph_free(h);
+ state_t(D_t D, L_t L, double T, std::function <double(X_t, X_t)> J, std::function <double(X_t)> H) : D(D), L(L), T(T), J(J), H(H), g(D, L) {
+ nv = g.nv;
+ ne = g.ne;
+ g.add_ext();
spins = (X_t *)malloc(nv * sizeof(X_t));
for (v_t i = 0; i < nv; i++) {
init (&(spins[i]));
@@ -58,7 +56,6 @@ class state_t {
}
~state_t() {
- graph_free(g);
for (v_t i = 0; i < nv; i++) {
free_spin(spins[i]);
}