Macroscopic EvolveE with constant properties (#991)

* Adding macro-E Push and new file

* Add macroEvolveE, call it, and include algo selection in utils

* fix eol

* Fixing bug in macroE for sigma method 1

* changing MacroEvolveE to MacroscopicEvolveE

* add class for macroscopicproperties and an object in WarpX class

* fix eol

* adding templated ckc call with comment that EvolveE is same for yee and ckc

* add header file pointing to ckc algorithm

* adding obejct m_macroscopic_properties to access sigma,eps,mu

* some cleaning

* Adding comments

* adding documentation

* spelling wandroff to wendroff

* fixing eol

* eol

* const in the right place. Thanks bot!

* profiler for macroscopic evolveE

* re-introduced deleted line when fixing conflict to declare templated EvolveBPMLCartesian function

* fixing if-else statement for RZ in MAcroscopicEvolveE.cpp

* adding suggestions and corrections made in PR review.

* fixing grammar in docs

* fix eol whitespace

* fix typo

1 files changed, 15 insertions, 0 deletions

diff --git a/Source/Utils/WarpXAlgorithmSelection.cpp b/Source/Utils/WarpXAlgorithmSelection.cpp
index 066353222..9649a20c9 100644
--- a/Source/Utils/WarpXAlgorithmSelection.cpp
+++ b/Source/Utils/WarpXAlgorithmSelection.cpp
@@ -58,6 +58,17 @@ const std::map<std::string, int> load_balance_costs_update_algo_to_int = {
     {"default",   LoadBalanceCostsUpdateAlgo::Timers }
 };
 
+const std::map<std::string, int> MaxwellSolver_medium_algo_to_int = {
+    {"vacuum", MediumForEM::Vacuum},
+    {"macroscopic", MediumForEM::Macroscopic},
+    {"default", MediumForEM::Vacuum}
+};
+
+const std::map<std::string, int> MacroscopicSolver_algo_to_int = {
+    {"backwardeuler", MacroscopicSolverAlgo::BackwardEuler},
+    {"laxwendroff", MacroscopicSolverAlgo::LaxWendroff},
+    {"default", MacroscopicSolverAlgo::BackwardEuler},
+};
 
 int
 GetAlgorithmInteger( amrex::ParmParse& pp, const char* pp_search_key ){
@@ -82,6 +93,10 @@ GetAlgorithmInteger( amrex::ParmParse& pp, const char* pp_search_key ){
         algo_to_int = gathering_algo_to_int;
     } else if (0 == std::strcmp(pp_search_key, "load_balance_costs_update")) {
         algo_to_int = load_balance_costs_update_algo_to_int;
+    } else if (0 == std::strcmp(pp_search_key, "em_solver_medium")) {
+        algo_to_int = MaxwellSolver_medium_algo_to_int;
+    } else if (0 == std::strcmp(pp_search_key, "macroscopic_sigma_method")) {
+        algo_to_int = MacroscopicSolver_algo_to_int;
     } else {
         std::string pp_search_string = pp_search_key;
         amrex::Abort("Unknown algorithm type: " + pp_search_string);