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authorGravatar Dave Grote <grote1@llnl.gov> 2019-07-24 13:17:52 -0700
committerGravatar Dave Grote <grote1@llnl.gov> 2019-07-24 13:17:52 -0700
commit1c45d2b66faff7d2e34c9e8f984614fee07c1f99 (patch)
treecef68c0e811bd9d9a8f970114910ab8a99804c11 /Source/FieldSolver/WarpXPushFieldsEM.cpp
parent0666dcb6998d8fededaa3c02eabb104b92a02d5b (diff)
parenta994e6e7c4419bdf5bee8d55889f1c25eaea5f1e (diff)
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Merge branch 'dev' into push_momentum
Diffstat (limited to 'Source/FieldSolver/WarpXPushFieldsEM.cpp')
-rw-r--r--Source/FieldSolver/WarpXPushFieldsEM.cpp48
1 files changed, 48 insertions, 0 deletions
diff --git a/Source/FieldSolver/WarpXPushFieldsEM.cpp b/Source/FieldSolver/WarpXPushFieldsEM.cpp
index c53e13f8f..bea008598 100644
--- a/Source/FieldSolver/WarpXPushFieldsEM.cpp
+++ b/Source/FieldSolver/WarpXPushFieldsEM.cpp
@@ -16,6 +16,54 @@
using namespace amrex;
+#ifdef WARPX_USE_PSATD
+
+void
+WarpX::PushPSATD (amrex::Real a_dt)
+{
+ for (int lev = 0; lev <= finest_level; ++lev) {
+ AMREX_ALWAYS_ASSERT_WITH_MESSAGE(dt[lev] == a_dt, "dt must be consistent");
+ if (fft_hybrid_mpi_decomposition){
+#ifndef AMREX_USE_CUDA // Only available on CPU
+ PushPSATD_hybridFFT(lev, a_dt);
+#endif
+ } else {
+ PushPSATD_localFFT(lev, a_dt);
+ }
+ }
+}
+
+void WarpX::PushPSATD_localFFT (int lev, amrex::Real /* dt */)
+{
+ auto& solver = *spectral_solver_fp[lev];
+
+ // Perform forward Fourier transform
+ solver.ForwardTransform(*Efield_fp[lev][0], SpectralFieldIndex::Ex);
+ solver.ForwardTransform(*Efield_fp[lev][1], SpectralFieldIndex::Ey);
+ solver.ForwardTransform(*Efield_fp[lev][2], SpectralFieldIndex::Ez);
+ solver.ForwardTransform(*Bfield_fp[lev][0], SpectralFieldIndex::Bx);
+ solver.ForwardTransform(*Bfield_fp[lev][1], SpectralFieldIndex::By);
+ solver.ForwardTransform(*Bfield_fp[lev][2], SpectralFieldIndex::Bz);
+ solver.ForwardTransform(*current_fp[lev][0], SpectralFieldIndex::Jx);
+ solver.ForwardTransform(*current_fp[lev][1], SpectralFieldIndex::Jy);
+ solver.ForwardTransform(*current_fp[lev][2], SpectralFieldIndex::Jz);
+ solver.ForwardTransform(*rho_fp[lev], SpectralFieldIndex::rho_old, 0);
+ solver.ForwardTransform(*rho_fp[lev], SpectralFieldIndex::rho_new, 1);
+
+ // Advance fields in spectral space
+ solver.pushSpectralFields();
+
+ // Perform backward Fourier Transform
+ solver.BackwardTransform(*Efield_fp[lev][0], SpectralFieldIndex::Ex);
+ solver.BackwardTransform(*Efield_fp[lev][1], SpectralFieldIndex::Ey);
+ solver.BackwardTransform(*Efield_fp[lev][2], SpectralFieldIndex::Ez);
+ solver.BackwardTransform(*Bfield_fp[lev][0], SpectralFieldIndex::Bx);
+ solver.BackwardTransform(*Bfield_fp[lev][1], SpectralFieldIndex::By);
+ solver.BackwardTransform(*Bfield_fp[lev][2], SpectralFieldIndex::Bz);
+}
+
+#endif
+
void
WarpX::EvolveB (Real a_dt)
{