initial the file : source/module_ri/RI_2D_Comm.cpp and ABF_Construct (#3898)

* initial the file source/module_ri/RI_2D_Comm.cpp

* the second initialization of module_ri/RI_2D_Comm.cpp

* initialize the file ABFS-Construct-PCA

* initialize the file ABF_Costruct_

* initialize the file ABFs_Construct-PCA.cpp

---------

Co-authored-by: Mohan Chen <[email protected]>

Author: RobertRainbow

source/module_ri/ABFs_Construct-PCA.cpp

@@ -21,7 +21,7 @@ namespace ABFs_Construct::PCA
 		const int nr = a.shape[0];
 		const int nc = a.shape[1];
 
-		double work_tmp;
+		double work_tmp=0.0;
 		constexpr int minus_one = -1;
 		dsyev_(&jobz, &uplo, &nr, a.ptr(), &nc, w, &work_tmp, &minus_one, &info);		// get best lwork
 
@@ -117,7 +117,7 @@ namespace ABFs_Construct::PCA
 				RI::Tensor<double> mm = A_sub.transpose() * A_sub;
 				std::vector<double> eig_value(mm.shape[0]);
 
-				int info;
+				int info=1;
 
 				tensor_dsyev('V', 'L', mm, eig_value.data(), info);
 
@@ -150,4 +150,4 @@ namespace ABFs_Construct::PCA
 		return eig;
 	}
 
-}	// namespace ABFs_Construct::PCA
+}	// namespace ABFs_Construct::PCA

source/module_ri/RI_2D_Comm.cpp

@@ -22,7 +22,7 @@ auto RI_2D_Comm::get_2D_judge(const Parallel_Orbitals &pv)
     for (int iwt0_2D = 0; iwt0_2D < pv.nrow; ++iwt0_2D)
 	{
         const int iwt0 = pv.local2global_row(iwt0_2D);
-		int iat0, iw0_b, is0_b;
+		int iat0=0;int iw0_b=0;int is0_b=0;
 		std::tie(iat0,iw0_b,is0_b) = RI_2D_Comm::get_iat_iw_is_block(iwt0);
 		iat0_list[is0_b].insert(iat0);
 	}
@@ -31,7 +31,7 @@ auto RI_2D_Comm::get_2D_judge(const Parallel_Orbitals &pv)
     for (int iwt1_2D = 0; iwt1_2D < pv.ncol; ++iwt1_2D)
 	{
         const int iwt1 = pv.local2global_col(iwt1_2D);
-		int iat1, iw1_b, is1_b;
+		int iat1=0;int iw1_b=0;int is1_b=0;
 		std::tie(iat1,iw1_b,is1_b) = RI_2D_Comm::get_iat_iw_is_block(iwt1);
 		iat1_list[is1_b].insert(iat1);
 	}
@@ -68,4 +68,5 @@ RI_2D_Comm::get_ik_list(const K_Vectors &kv, const int is_k)
 		if(kv.isk[ik]==is_k)
 			ik_list.push_back(ik);
 	return ik_list;
-}
+}
+