From 252d08f1bdc091db510b5d0f01feaac9263b2afc Mon Sep 17 00:00:00 2001
From: Stein Krogstad <stein.krogstad@sintef.no>
Date: Wed, 7 Jun 2023 15:45:27 +0200
Subject: [PATCH] No need to loop over phases here

---
 opm/simulators/wells/WellInterface_impl.hpp | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/opm/simulators/wells/WellInterface_impl.hpp b/opm/simulators/wells/WellInterface_impl.hpp
index 1b90e4392..8aed0d068 100644
--- a/opm/simulators/wells/WellInterface_impl.hpp
+++ b/opm/simulators/wells/WellInterface_impl.hpp
@@ -1198,16 +1198,11 @@ namespace Opm
     setPrevSurfaceRates(WellState& well_state, 
                             const WellState& prev_well_state) const
     {
-        const int np = this->number_of_phases_;
         auto& ws = well_state.well(this->index_of_well_);
         if (!this->changedToOpenThisStep()){
-            for (int p = 0; p<np; ++p){
-                ws.prev_surface_rates[p] = prev_well_state.well(this->index_of_well_).surface_rates[p];
-            }
+            ws.prev_surface_rates = prev_well_state.well(this->index_of_well_).surface_rates;
         } else {
-            for (int p = 0; p<np; ++p){
-                ws.prev_surface_rates[p] = ws.surface_rates[p];
-            }
+            ws.prev_surface_rates = ws.surface_rates;
         }
     }