From f8d5cd4d071bf8507cd504b7c301f9cd03f6746e Mon Sep 17 00:00:00 2001
From: Achim Gsell <achim.gsell@psi.ch>
Date: Fri, 3 May 2024 22:07:50 +0200
Subject: [PATCH] boost::chrono replaced with std::chrono

---
 optimizer/Optimizer/EA/FixedPisaNsga2.tcc | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/optimizer/Optimizer/EA/FixedPisaNsga2.tcc b/optimizer/Optimizer/EA/FixedPisaNsga2.tcc
index 13cd5ebe5..129a36bd4 100644
--- a/optimizer/Optimizer/EA/FixedPisaNsga2.tcc
+++ b/optimizer/Optimizer/EA/FixedPisaNsga2.tcc
@@ -182,8 +182,8 @@ void FixedPisaNsga2<CO, MO>::initialize() {
     initialized_m = false;
 
     // start poll loop
-    run_clock_start_ = boost::chrono::system_clock::now();
-    last_clock_      = boost::chrono::system_clock::now();
+    run_clock_start_ = std::chrono::system_clock::now();
+    last_clock_      = std::chrono::system_clock::now();
     run();
 
     // run has ended
@@ -192,8 +192,8 @@ void FixedPisaNsga2<CO, MO>::initialize() {
         current_hvol_ =
           variator_m->population()->computeHypervolume(comms_.island_id, hvol_ref_m);
 
-    boost::chrono::duration<double> total =
-        boost::chrono::system_clock::now() - run_clock_start_;
+    std::chrono::duration<double> total =
+        std::chrono::system_clock::now() - run_clock_start_;
     std::ostringstream stats;
     stats << "__________________________________________" << std::endl;
     stats << "GENERATION " <<  act_gen << std::endl;
@@ -363,11 +363,11 @@ void FixedPisaNsga2<CO, MO>::postPoll() {
             current_hvol_ = hvol;
         }
 
-        boost::chrono::duration<double> total =
-            boost::chrono::system_clock::now() - run_clock_start_;
-        boost::chrono::duration<double> dt    =
-            boost::chrono::system_clock::now() - last_clock_;
-        last_clock_ = boost::chrono::system_clock::now();
+        std::chrono::duration<double> total =
+            std::chrono::system_clock::now() - run_clock_start_;
+        std::chrono::duration<double> dt    =
+            std::chrono::system_clock::now() - last_clock_;
+        last_clock_ = std::chrono::system_clock::now();
         std::ostringstream stats;
         stats << "__________________________________________" << std::endl;
         stats << "Arriving at generation " << act_gen + 1     << std::endl;
-- 
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