Rename Input to `algo.maxwell_solver` (#1188)

* Rename Input to `algo.maxwell_solver`

Rename the input option `algo.maxwell_fdtd_solver` to
`algo.maxwell_solver` and throw a useful error message for users
using the old option.

This is in preparation to unify FDTD and PSATD input control to
reduce mutually exclusive binary variants of WarpX.

* MW Solver Name: Update Examples

Update all example to use the new algo.maxwell_solver option.

* Fix typo in comutation of dt

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

1 files changed, 2 insertions, 2 deletions

diff --git a/Source/Parallelization/GuardCellManager.H b/Source/Parallelization/GuardCellManager.H
index c2b9227d2..393fbe33d 100644
--- a/Source/Parallelization/GuardCellManager.H
+++ b/Source/Parallelization/GuardCellManager.H
@@ -31,7 +31,7 @@ public:
      * \param noy_fft order of PSATD in y direction
      * \param noz_fft order of PSATD in z direction
      * \param nci_corr_stencil stencil of NCI corrector
-     * \param maxwell_fdtd_solver_id if of Maxwell solver
+     * \param maxwell_solver_id if of Maxwell solver
      * \param max_level max level of the simulation
      */
     void Init(
@@ -44,7 +44,7 @@ public:
         const int nox,
         const int nox_fft, const int noy_fft, const int noz_fft,
         const int nci_corr_stencil,
-        const int maxwell_fdtd_solver_id,
+        const int maxwell_solver_id,
         const int max_level,
         const amrex::Array<amrex::Real,3> v_galilean,
         const bool safe_guard_cells);