Galilean PSATD with shift (#704)

* Read Galilean velocity

* Prepare structures for Galilean solver

* Started implementing Galilean equations

* Analytical limits for X1, X2, X3, X4 coefficients added

* Slight changes added

* Added Galilean position pusher

* Scale galilean velocity

* Remove unneeded Abort

* Fix Galilean pusher

* Allocate Theta2 array

* Fix definition of coefficients

* Increase guard cells for Galilean

* Add guard cell in particle exchange

* Type corrected

* v_gal added to warpx_current_deposition

* v_gal added to WarpXParticleContainer.H

* Bug fixed  - update particle x-position over one time step

* Fix issues with merge from dev

* Preparation for merging dev into galilean.

* Adding galilean shift

* Implemented galilean shift

* Changed method's name from GalileanShift to ShiftGalileanBoundary

* Added doxygen string for ShiftGalileanBoundary

* Removed never used method LowerCornerWithCentering

* Removed temporary comments

* Removed dt as a variable from DepositCharge method and its dependencies

* Converted tab to spaces

* Removed EOL white space

* Add documentation and automated tests

* Fix compilation error

* Add automated test

* Update automated test

* Removed temporary used galilean shift

* Removed temporary used particle's push for Galilean PSATD

* Removed unused statement

* Remove EOL white space.

* Added zero shift for LowerCorner in RZ geometry

* Minor changes to Galilean implementation

* Modifications for GPU

* Fix typo

Co-authored-by: Remi Lehe <remi.lehe@normalesup.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/Source/FieldSolver/WarpXPushFieldsEM.cpp b/Source/FieldSolver/WarpXPushFieldsEM.cpp
index 3c4b4439c..74db3cac4 100644
--- a/Source/FieldSolver/WarpXPushFieldsEM.cpp
+++ b/Source/FieldSolver/WarpXPushFieldsEM.cpp
@@ -619,7 +619,8 @@ WarpX::ApplyInverseVolumeScalingToCurrentDensity (MultiFab* Jx, MultiFab* Jy, Mu
         // Lower corner of tile box physical domain
         // Note that this is done before the tilebox.grow so that
         // these do not include the guard cells.
-        const std::array<Real, 3>& xyzmin = WarpX::LowerCorner(tilebox, lev);
+        std::array<amrex::Real,3> galilean_shift = {0,0,0};
+        const std::array<Real, 3>& xyzmin = WarpX::LowerCorner(tilebox, galilean_shift, lev);
         const Dim3 lo = lbound(tilebox);
         const Real rmin = xyzmin[0];
         const int irmin = lo.x;
@@ -761,7 +762,8 @@ WarpX::ApplyInverseVolumeScalingToChargeDensity (MultiFab* Rho, int lev)
         // Lower corner of tile box physical domain
         // Note that this is done before the tilebox.grow so that
         // these do not include the guard cells.
-        const std::array<Real, 3>& xyzmin = WarpX::LowerCorner(tilebox, lev);
+        std::array<amrex::Real,3> galilean_shift = {0,0,0};
+        const std::array<Real, 3>& xyzmin = WarpX::LowerCorner(tilebox, galilean_shift, lev);
         const Dim3 lo = lbound(tilebox);
         const Real rmin = xyzmin[0];
         const int irmin = lo.x;