From 5e82f6a6b64a7c6dbe5c0a625292631f6f8b58f4 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Tue, 12 May 2020 20:12:21 -0400
Subject: Some simplifications.

---
 metastable.cpp | 34 +++++++++++++---------------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/metastable.cpp b/metastable.cpp
index 5986b97..9a51358 100644
--- a/metastable.cpp
+++ b/metastable.cpp
@@ -83,20 +83,15 @@ void update_distribution_file(std::string id, const std::vector<std::vector<uint
 class meas : public measurement<ising_t, ising_t, graph<>> {
 private:
   std::vector<uint64_t> mag_dist;
-  std::vector<std::vector<uint64_t>> energy_mag_dist;
-
-  signed E;
   signed M;
-
   std::string model_string;
 
 public:
   meas(const wolff::system<ising_t, ising_t, graph<>>& S, double H)
-      : mag_dist(S.nv + 1, 0), energy_mag_dist(S.nv + 1) {
-    M = S.nv * S.s[0];
-    E = S.ne;
-    for (std::vector<uint64_t>& d : energy_mag_dist) {
-      d.resize(S.ne + 1, 0);
+      : mag_dist(S.nv + 1, 0) {
+    M = 0;
+    for (const ising_t& s : S.s) {
+      M = M + S.s0.act_inverse(s);
     }
     model_string = "metastable_" + std::to_string(S.G.D) + "_" + std::to_string(S.G.L) + "_" +
                    to_string_with_precision(S.T) + "_" + to_string_with_precision(H) + "_";
@@ -104,16 +99,6 @@ public:
 
   ~meas() {
     update_distribution_file("m", mag_dist, model_string);
-    update_distribution_file("e", energy_mag_dist, model_string);
-  }
-
-  void plain_bond_visited(const wolff::system<ising_t, ising_t, graph<>>&,
-                          const typename graph<>::halfedge&, const ising_t&, double dE) override {
-    if (dE > 0) {
-      E -= 2;
-    } else {
-      E += 2;
-    }
   }
 
   void ghost_bond_visited(const wolff::system<ising_t, ising_t, graph<>>&, const typename graph<>::vertex&,
@@ -123,11 +108,11 @@ public:
 
   void post_cluster(unsigned, unsigned, const wolff::system<ising_t, ising_t, graph<>>& S) override {
     mag_dist[(S.nv + M) / 2]++;
-    energy_mag_dist[(S.nv + M) / 2][(E + S.ne) / 2]++;
   }
 };
 
 int main(int argc, char* argv[]) {
+  unsigned w = (unsigned)1e2;
   unsigned N = (unsigned)1e4;
   unsigned D = 2;
   unsigned L = 128;
@@ -136,8 +121,11 @@ int main(int argc, char* argv[]) {
 
   int opt;
 
-  while ((opt = getopt(argc, argv, "N:D:L:T:H:")) != -1) {
+  while ((opt = getopt(argc, argv, "w:N:D:L:T:H:")) != -1) {
     switch (opt) {
+    case 'w': // number of steps to wait
+      w = (unsigned)atof(optarg);
+      break;
     case 'N': // number of steps
       N = (unsigned)atof(optarg);
       break;
@@ -174,6 +162,10 @@ int main(int argc, char* argv[]) {
   randutils::auto_seed_128 seeds;
   std::mt19937 rng(seeds);
 
+  wolff::measurement<ising_t, ising_t, graph<>> nullMeasurement;
+
+  S.run_wolff(w, gen_ising<graph<>>, nullMeasurement, rng);
+
   meas A(S, H);
 
   // run wolff N times
-- 
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