From 342d83d6f24d5b063864f883ec05e7c9fff1301c Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Thu, 12 Dec 2019 11:12:35 -0500
Subject: bug fix: parallel measurements recorded during dry runs

---
 hadamard_pt.hpp | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/hadamard_pt.hpp b/hadamard_pt.hpp
index bddd8b7..a3d4657 100644
--- a/hadamard_pt.hpp
+++ b/hadamard_pt.hpp
@@ -48,7 +48,7 @@ public:
     }
   }
 
-  bool step(unsigned i, unsigned j) {
+  bool step(unsigned i, unsigned j, bool dry = false) {
     double Δβ = Ms[i].β - Ms[j].β;
     double ΔE = Ms[i].E - Ms[j].E;
 
@@ -57,14 +57,16 @@ public:
     if (accepted)
       swap(Ms[i], Ms[j]);
 
-    B.after_step(accepted, i, j, Δβ, ΔE, Ms[i], Ms[j]);
+    if (!dry) {
+      B.after_step(accepted, i, j, Δβ, ΔE, Ms[i], Ms[j]);
+    }
     return accepted;
   }
 
-  void sweep() {
+  void sweep(bool dry = false) {
     for (unsigned i = 0; i < Ms.size() - 1; i++) {
       for (unsigned j = i + 1; j < Ms.size(); j++) {
-        this->step(i, j);
+        this->step(i, j, dry);
       }
     }
   }
@@ -75,7 +77,7 @@ public:
       for (unsigned j = 0; j < Ms.size(); j++) {
         Ms[j].run(m, dry);
       }
-      this->sweep();
+      this->sweep(dry);
       if (!dry) {
         B.after_sweep(this->Ms);
       }
-- 
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