Merge branch 'dev' into initial_fields

1 files changed, 108 insertions, 15 deletions

diff --git a/Source/Particles/PhysicalParticleContainer.cpp b/Source/Particles/PhysicalParticleContainer.cpp
index ec994cbb7..6cfe20dd9 100644
--- a/Source/Particles/PhysicalParticleContainer.cpp
+++ b/Source/Particles/PhysicalParticleContainer.cpp
@@ -17,6 +17,8 @@
 #include <UpdatePosition.H>
 #include <UpdateMomentumBoris.H>
 #include <UpdateMomentumVay.H>
+#include <UpdateMomentumBorisWithRadiationReaction.H>
+#include <UpdateMomentumHigueraCary.H>
 
 using namespace amrex;
 
@@ -41,9 +43,26 @@ PhysicalParticleContainer::PhysicalParticleContainer (AmrCore* amr_core, int isp
     pp.query("do_continuous_injection", do_continuous_injection);
     // Whether to plot back-transformed (lab-frame) diagnostics
     // for this species.
-    pp.query("do_boosted_frame_diags", do_boosted_frame_diags);
+    pp.query("do_back_transformed_diagnostics", do_back_transformed_diagnostics);
 
     pp.query("do_field_ionization", do_field_ionization);
+
+    //check if Radiation Reaction is enabled and do consistency checks
+    pp.query("do_classical_radiation_reaction", do_classical_radiation_reaction);
+    //if the species is not a lepton, do_classical_radiation_reaction
+    //should be false
+    AMREX_ALWAYS_ASSERT_WITH_MESSAGE(
+        !(do_classical_radiation_reaction && !AmIALepton()),
+        "Can't enable classical radiation reaction for non lepton species. " );
+
+    //Only Boris pusher is compatible with radiation reaction
+    AMREX_ALWAYS_ASSERT_WITH_MESSAGE(
+        !(do_classical_radiation_reaction &&
+        WarpX::particle_pusher_algo != ParticlePusherAlgo::Boris),
+        "Radiation reaction can be enabled only if Boris pusher is used");
+    //_____________________________
+
+
 #ifdef AMREX_USE_GPU
     AMREX_ALWAYS_ASSERT_WITH_MESSAGE(
         do_field_ionization == 0,
@@ -67,7 +86,7 @@ PhysicalParticleContainer::PhysicalParticleContainer (AmrCore* amr_core, int isp
 
     //variable to set plot_flags size
     int plot_flag_size = PIdx::nattribs;
-    if(WarpX::do_boosted_frame_diagnostic && do_boosted_frame_diags)
+    if(WarpX::do_back_transformed_diagnostics && do_back_transformed_diagnostics)
         plot_flag_size += 6;
 
 #ifdef WARPX_QED
@@ -422,13 +441,13 @@ PhysicalParticleContainer::AddPlasma (int lev, RealBox part_realbox)
         for (int dir=0; dir<AMREX_SPACEDIM; dir++) {
             if ( tile_realbox.lo(dir) <= part_realbox.hi(dir) ) {
                 Real ncells_adjust = std::floor( (tile_realbox.lo(dir) - part_realbox.lo(dir))/dx[dir] );
-                overlap_realbox.setLo( dir, part_realbox.lo(dir) + std::max(ncells_adjust, Real(0.)) * dx[dir]);
+                overlap_realbox.setLo( dir, part_realbox.lo(dir) + std::max(ncells_adjust, 0._rt) * dx[dir]);
             } else {
                 no_overlap = true; break;
             }
             if ( tile_realbox.hi(dir) >= part_realbox.lo(dir) ) {
                 Real ncells_adjust = std::floor( (part_realbox.hi(dir) - tile_realbox.hi(dir))/dx[dir] );
-                overlap_realbox.setHi( dir, part_realbox.hi(dir) - std::max(ncells_adjust, Real(0.)) * dx[dir]);
+                overlap_realbox.setHi( dir, part_realbox.hi(dir) - std::max(ncells_adjust, 0._rt) * dx[dir]);
             } else {
                 no_overlap = true; break;
             }
@@ -1059,7 +1078,7 @@ PhysicalParticleContainer::Evolve (int lev,
 
     bool has_buffer = cEx || cjx;
 
-    if (WarpX::do_boosted_frame_diagnostic && do_boosted_frame_diags)
+    if (WarpX::do_back_transformed_diagnostics && do_back_transformed_diagnostics)
     {
         for (WarpXParIter pti(*this, lev); pti.isValid(); ++pti)
         {
@@ -1408,9 +1427,9 @@ PhysicalParticleContainer::SplitParticles(int lev)
         // before splitting results in a uniform distribution after splitting
         const amrex::Vector<int> ppc_nd = plasma_injector->num_particles_per_cell_each_dim;
         const std::array<Real,3>& dx = WarpX::CellSize(lev);
-        amrex::Vector<amrex::Real> split_offset = {dx[0]/2./ppc_nd[0],
-                                                   dx[1]/2./ppc_nd[1],
-                                                   dx[2]/2./ppc_nd[2]};
+        amrex::Vector<Real> split_offset = {dx[0]/2._rt/ppc_nd[0],
+                                            dx[1]/2._rt/ppc_nd[1],
+                                            dx[2]/2._rt/ppc_nd[2]};
 
         // particle Array Of Structs data
         auto& particles = pti.GetArrayOfStructs();
@@ -1566,7 +1585,7 @@ PhysicalParticleContainer::PushPX(WarpXParIter& pti,
     const ParticleReal* const AMREX_RESTRICT By = attribs[PIdx::By].dataPtr();
     const ParticleReal* const AMREX_RESTRICT Bz = attribs[PIdx::Bz].dataPtr();
 
-    if (WarpX::do_boosted_frame_diagnostic && do_boosted_frame_diags && (a_dt_type!=DtType::SecondHalf))
+    if (WarpX::do_back_transformed_diagnostics && do_back_transformed_diagnostics && (a_dt_type!=DtType::SecondHalf))
     {
         copy_attribs(pti, x, y, z);
     }
@@ -1579,7 +1598,23 @@ PhysicalParticleContainer::PushPX(WarpXParIter& pti,
     // Loop over the particles and update their momentum
     const Real q = this->charge;
     const Real m = this-> mass;
-    if (WarpX::particle_pusher_algo == ParticlePusherAlgo::Boris){
+
+
+    //Assumes that all consistency checks have been done at initialization
+    if(do_classical_radiation_reaction){
+        amrex::ParallelFor(
+            pti.numParticles(),
+            [=] AMREX_GPU_DEVICE (long i) {
+                Real qp = q;
+                if (ion_lev){ qp *= ion_lev[i]; }
+                UpdateMomentumBorisWithRadiationReaction( ux[i], uy[i], uz[i],
+                                   Ex[i], Ey[i], Ez[i], Bx[i],
+                                   By[i], Bz[i], qp, m, dt);
+                UpdatePosition( x[i], y[i], z[i],
+                                ux[i], uy[i], uz[i], dt );
+            }
+        );
+    } else if (WarpX::particle_pusher_algo == ParticlePusherAlgo::Boris){
         amrex::ParallelFor(
             pti.numParticles(),
             [=] AMREX_GPU_DEVICE (long i) {
@@ -1605,6 +1640,19 @@ PhysicalParticleContainer::PushPX(WarpXParIter& pti,
                                 ux[i], uy[i], uz[i], dt );
             }
         );
+    } else if (WarpX::particle_pusher_algo == ParticlePusherAlgo::HigueraCary) {
+        amrex::ParallelFor(
+            pti.numParticles(),
+            [=] AMREX_GPU_DEVICE (long i) {
+                Real qp = q;
+                if (ion_lev){ qp *= ion_lev[i]; }
+                UpdateMomentumHigueraCary( ux[i], uy[i], uz[i],
+                                   Ex[i], Ey[i], Ez[i], Bx[i],
+                                   By[i], Bz[i], qp, m, dt);
+                UpdatePosition( x[i], y[i], z[i],
+                                ux[i], uy[i], uz[i], dt );
+            }
+        );
     } else {
       amrex::Abort("Unknown particle pusher");
     };
@@ -1687,17 +1735,55 @@ PhysicalParticleContainer::PushP (int lev, Real dt,
             // Loop over the particles and update their momentum
             const Real q = this->charge;
             const Real m = this-> mass;
-            if (WarpX::particle_pusher_algo == ParticlePusherAlgo::Boris){
+
+            int* AMREX_RESTRICT ion_lev = nullptr;
+            if (do_field_ionization){
+                ion_lev = pti.GetiAttribs(particle_icomps["ionization_level"]).dataPtr();
+            }
+
+
+            //Assumes that all consistency checks have been done at initialization
+            if(do_classical_radiation_reaction){
+                amrex::ParallelFor(
+                    pti.numParticles(),
+                    [=] AMREX_GPU_DEVICE (long i) {
+                        Real qp = q;
+                        if (ion_lev){ qp *= ion_lev[i]; }
+                        UpdateMomentumBorisWithRadiationReaction(
+                            ux[i], uy[i], uz[i],
+                            Expp[i], Eypp[i], Ezpp[i],
+                            Bxpp[i], Bypp[i], Bzpp[i],
+                            qp, m, dt);
+                    }
+                );
+            } else if (WarpX::particle_pusher_algo == ParticlePusherAlgo::Boris){
                 amrex::ParallelFor( pti.numParticles(),
                     [=] AMREX_GPU_DEVICE (long i) {
-                        UpdateMomentumBoris( ux[i], uy[i], uz[i],
-                              Expp[i], Eypp[i], Ezpp[i], Bxpp[i], Bypp[i], Bzpp[i], q, m, dt);
+                        Real qp = q;
+                        if (ion_lev){ qp *= ion_lev[i]; }
+                        UpdateMomentumBoris(
+                            ux[i], uy[i], uz[i],
+                            Expp[i], Eypp[i], Ezpp[i],
+                            Bxpp[i], Bypp[i], Bzpp[i],
+                            qp, m, dt);
                     }
                 );
             } else if (WarpX::particle_pusher_algo == ParticlePusherAlgo::Vay) {
                 amrex::ParallelFor( pti.numParticles(),
                     [=] AMREX_GPU_DEVICE (long i) {
-                        UpdateMomentumVay( ux[i], uy[i], uz[i],
+                        Real qp = q;
+                        if (ion_lev){ qp *= ion_lev[i]; }
+                        UpdateMomentumVay(
+                            ux[i], uy[i], uz[i],
+                            Expp[i], Eypp[i], Ezpp[i],
+                            Bxpp[i], Bypp[i], Bzpp[i],
+                            qp, m, dt);
+                    }
+                );
+            } else if (WarpX::particle_pusher_algo == ParticlePusherAlgo::HigueraCary) {
+                amrex::ParallelFor( pti.numParticles(),
+                    [=] AMREX_GPU_DEVICE (long i) {
+                        UpdateMomentumHigueraCary( ux[i], uy[i], uz[i],
                               Expp[i], Eypp[i], Ezpp[i], Bxpp[i], Bypp[i], Bzpp[i], q, m, dt);
                     }
                 );
@@ -1756,7 +1842,7 @@ void PhysicalParticleContainer::GetParticleSlice(const int direction, const Real
     // Note the the slice should always move in the negative boost direction.
     AMREX_ALWAYS_ASSERT(z_new < z_old);
 
-    AMREX_ALWAYS_ASSERT(do_boosted_frame_diags == 1);
+    AMREX_ALWAYS_ASSERT(do_back_transformed_diagnostics == 1);
 
     const int nlevs = std::max(0, finestLevel()+1);
 
@@ -2142,6 +2228,13 @@ PhysicalParticleContainer::buildIonizationMask (const amrex::MFIter& mfi, const
     );
 }
 
+//This function return true if the PhysicalParticleContainer contains electrons
+//or positrons, false otherwise
+bool
+PhysicalParticleContainer::AmIALepton(){
+    return (this-> mass == PhysConst::m_e);
+}
+
 #ifdef WARPX_QED
 
 bool PhysicalParticleContainer::has_quantum_sync()