From 1df6adf16e623570215defa2b22c10e343738edf Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Tue, 17 Mar 2020 14:42:43 -0400
Subject: Interactive choice for whether to finish tuning.

---
 hadamard.cpp | 30 ++++++++++++++++++++++++------
 pcg-cpp      |  2 +-
 2 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/hadamard.cpp b/hadamard.cpp
index a2c4199..b311e2d 100644
--- a/hadamard.cpp
+++ b/hadamard.cpp
@@ -118,13 +118,31 @@ int main(int argc, char* argv[]) {
     sim.E = sim.M.energy();
   }
 
+  std::vector<double> f;
+
   std::cout << "Beginning simulation of " << n << ".\n";
-  std::cout << "Beginning " << n_tuning << " tuning tempering updates of " << M
-            << " sweeps each.\n";
-  std::vector<double> f = p.tune(n_tuning, M, ε, ε2);
-  std::cout << "Finished tuning, beginning " << m << " measurement tempering updates of " << M
-            << " sweeps each.\n";
-  p.run(m, M);
+  bool still_tuning = true;
+  while (still_tuning) {
+    std::cout << "Beginning " << n_tuning << " tuning tempering updates of " << M
+              << " sweeps each.\n";
+    f = p.tune(n_tuning, M, ε, ε2);
+    std::cout << "Finished tuning, beginning " << m << " measurement tempering updates of " << M
+              << " sweeps each.\n";
+    std::cout << "βs: ";
+    for (const MCMC& M : p.Ms) {
+      std::cout << M.β << " ";
+    }
+    std::cout << std::endl;
+    std::cout << "Accept tuning as finished? (y/N): ";
+    char answer = getchar();
+    if (answer == 'y') {
+      still_tuning = false;
+    }
+    ε /= 2;
+    ε2 /= 2;
+  }
+  std::cout << "Running " << m << " PT swaps of " << M << " sweeps each.";
+  p.run(m, M); 
   std::cout << "Finished " << n << ".\n";
 
   auto tag = std::chrono::high_resolution_clock::now();
diff --git a/pcg-cpp b/pcg-cpp
index b263c73..5b5cac8 160000
--- a/pcg-cpp
+++ b/pcg-cpp
@@ -1 +1 @@
-Subproject commit b263c73ec965ad515de8be8286086d78c67c2f01
+Subproject commit 5b5cac8d61339e810c5dbb4692d868a1d7ca1b2d
-- 
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