From 1c68d78862622ac9df00c797c9a7c8c944f0e680 Mon Sep 17 00:00:00 2001
From: Pablo Seleson <31291133+pabloseleson@users.noreply.github.com>
Date: Thu, 24 Aug 2023 15:37:05 -0400
Subject: [PATCH] Remove unused mvv2e factor (#37)

Originally used in the MD codes
---
 src/CabanaPD_Integrate.hpp  | 4 ++--
 src/CabanaPD_Solver.hpp     | 3 +--
 unit_test/tstIntegrator.hpp | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/CabanaPD_Integrate.hpp b/src/CabanaPD_Integrate.hpp
index 753f95ea..843ebc96 100644
--- a/src/CabanaPD_Integrate.hpp
+++ b/src/CabanaPD_Integrate.hpp
@@ -75,10 +75,10 @@ class Integrator
     double _dt, _half_dt;
 
   public:
-    Integrator( double dt, double mvv2e )
+    Integrator( double dt )
         : _dt( dt )
     {
-        _half_dt = 0.5 * dt / mvv2e;
+        _half_dt = 0.5 * dt;
     }
 
     ~Integrator() {}
diff --git a/src/CabanaPD_Solver.hpp b/src/CabanaPD_Solver.hpp
index 1d9c7a69..dd38941b 100644
--- a/src/CabanaPD_Solver.hpp
+++ b/src/CabanaPD_Solver.hpp
@@ -126,8 +126,7 @@ class SolverElastic
         output_frequency = inputs->output_frequency;
 
         // Create integrator.
-        // FIXME: hardcoded.
-        integrator = std::make_shared<integrator_type>( inputs->timestep, 1.0 );
+        integrator = std::make_shared<integrator_type>( inputs->timestep );
 
         // Add ghosts from other MPI ranks.
         comm = std::make_shared<comm_type>( *particles );
diff --git a/unit_test/tstIntegrator.hpp b/unit_test/tstIntegrator.hpp
index 91884e59..e24f4fb6 100644
--- a/unit_test/tstIntegrator.hpp
+++ b/unit_test/tstIntegrator.hpp
@@ -48,7 +48,7 @@ void testIntegratorReversibility( int steps )
     auto x = particles.slice_x();
     std::size_t num_particle = x.size();
 
-    CabanaPD::Integrator<exec_space> integrator( 0.001, 1.0 );
+    CabanaPD::Integrator<exec_space> integrator( 0.001 );
 
     // Keep a copy of initial positions on the host
     using DataTypes = Cabana::MemberTypes<double[3]>;