change some variable to static

Author: dzzz2001

source/module_esolver/lcao_before_scf.cpp

@@ -132,7 +132,7 @@ void ESolver_KS_LCAO<TK, TR>::before_scf(UnitCell& ucell, const int istep)
         orb_.Phi,
         ucell,
         this->gd);
-    ModuleGint::Gint::set_gint_info(gint_info);
+    ModuleGint::Gint::init_gint_info(gint_info);
 
     psi_u.clear();
     psi_u.shrink_to_fit();

source/module_hamilt_lcao/module_gint/new_grid_tech/biggrid.cpp

@@ -2,11 +2,11 @@
 
 namespace ModuleGint
 {
+std::shared_ptr<const LocalCellInfo> BigGrid::localcell_info_ = nullptr;
+std::shared_ptr<const UnitCellInfo> BigGrid::unitcell_info_ = nullptr;
+std::shared_ptr<const BigGridInfo> BigGrid::biggrid_info_ = nullptr;
 
-BigGrid::BigGrid(int idx, std::shared_ptr<const LocalCellInfo> localcell_info)
-    : idx_(idx), localcell_info_(localcell_info),
-      unitcell_info_(localcell_info->get_unitcell_info()),
-      biggrid_info_(localcell_info_->get_biggrid_info()) {}
+BigGrid::BigGrid(int idx): idx_(idx){}
 
 void BigGrid::add_atom(const GintAtom* atom)
 {

source/module_hamilt_lcao/module_gint/new_grid_tech/biggrid.h

@@ -80,13 +80,13 @@ class BigGrid
         const int idx_;
 
         // local cell info
-        std::shared_ptr<const LocalCellInfo> localcell_info_;
+        static std::shared_ptr<const LocalCellInfo> localcell_info_;
 
         // unitcell info
-        std::shared_ptr<const UnitCellInfo> unitcell_info_;
+        static std::shared_ptr<const UnitCellInfo> unitcell_info_;
 
         // the big grid info
-        std::shared_ptr<const BigGridInfo> biggrid_info_;
+        static std::shared_ptr<const BigGridInfo> biggrid_info_;
 };
 
 } // namespace ModuleGint

source/module_hamilt_lcao/module_gint/new_grid_tech/gint.h

@@ -16,7 +16,7 @@ class Gint
 
     // note that gint_info_ is a static member variable
     // it is shared by all instances of Gint
-    static void set_gint_info(std::shared_ptr<GintInfo> gint_info)
+    static void init_gint_info(std::shared_ptr<GintInfo> gint_info)
     {
         gint_info_ = gint_info;
     }

source/module_hamilt_lcao/module_gint/new_grid_tech/gint_info.cpp

@@ -38,7 +38,7 @@ GintInfo::GintInfo(
 
     for (int i = 0; i < localcell_info_->get_bgrids_num(); i++)
     {
-        biggrids_.push_back(std::make_shared<BigGrid>(i, localcell_info_));
+        biggrids_.push_back(std::make_shared<BigGrid>(i));
     }
 
     // initialize the atoms