1 files changed, 6 insertions, 2 deletions

diff --git a/ising.cpp b/ising.cpp
index e4ab65c..9ca6060 100644
--- a/ising.cpp
+++ b/ising.cpp
@@ -13,13 +13,14 @@ int main(int argc, char* argv[]) {
   unsigned L = 32;
   unsigned N = 1000;
   unsigned mod = 0;
+  unsigned multi = 1e4;
   double T = 2.0 / log(1.0 + sqrt(2.0));
   double H = 1.0;
   double ε = 0.1;
 
   int opt;
 
-  while ((opt = getopt(argc, argv, "N:L:T:H:e:m:")) != -1) {
+  while ((opt = getopt(argc, argv, "N:L:T:H:e:m:M")) != -1) {
     switch (opt) {
       case 'N': 
         N = (unsigned)atof(optarg);
@@ -39,6 +40,9 @@ int main(int argc, char* argv[]) {
       case 'm':
         mod = atoi(optarg);
         break;
+      case 'M':
+        multi = atoi(optarg);
+        break;
       default:
         exit(1);
     }
@@ -145,7 +149,7 @@ int main(int argc, char* argv[]) {
     ising.wolff(T, N, rng);
     std::array<double, 2> τ = ising.Eq.τ();
     std::cout << τ[0] << " " << τ[1] << " " << τ[1] / τ[0] << "\n";
-    if (τ[1] / τ[0] < ε && τ[0] * 1e4 < ising.Eq.num_added()) {
+    if (τ[1] / τ[0] < ε && τ[0] * multi < ising.Eq.num_added()) {
       break;
     }
   }