Merge pull request #81 from PeizeLin/develop

1. fix bug of wfc_dm_2d.init() in Local_Orbital_Charge::allocate_gamma()

Author: dyzheng

source/src_lcao/DM_gamma.cpp

@@ -267,10 +267,7 @@ void Local_Orbital_Charge::allocate_gamma(const Grid_Technique &gt)
     setAlltoallvParameter(GlobalC::ParaO.comm_2D, GlobalC::ParaO.blacs_ctxt, GlobalC::ParaO.nb);
 
 	// Peize Lin test 2019-01-16
-    if (GlobalV::KS_SOLVER=="genelpa") //LiuXh add 2021-09-06, clear memory, _2d only used in genelpa solver
-    {
-        wfc_dm_2d.init();
-    }
+    wfc_dm_2d.init();
 
 	if(GlobalC::wf.start_wfc=="file")
 	{