Feature: add xc output info

Author: PeizeLin

source/source_esolver/esolver_ks.cpp

@@ -70,6 +70,7 @@ void ESolver_KS<T, Device>::before_all_runners(UnitCell& ucell, const Input_para
 
     //! 4) setup Exc for the first element '0' (all elements have same exc) 
     XC_Functional::set_xc_type(ucell.atoms[0].ncpp.xc_func);
+    GlobalV::ofs_running<<XC_Functional::output_info()<<std::endl;
 
     //! 5) setup the charge mixing parameters
     p_chgmix->set_mixing(inp.mixing_mode, inp.mixing_beta, inp.mixing_ndim,

source/source_hamilt/module_xc/xc_functional.cpp

@@ -29,18 +29,29 @@ void XC_Functional::set_xc_first_loop(const UnitCell& ucell)
 the first scf iteration only calculate the functional without exact
 exchange. but in "nscf" calculation, there is no need of "two-level"
 method. */
-    if (ucell.atoms[0].ncpp.xc_func == "HF" || ucell.atoms[0].ncpp.xc_func == "HSE" 
-        || ucell.atoms[0].ncpp.xc_func == "PBE0"|| ucell.atoms[0].ncpp.xc_func == "LC_PBE" 
-        || ucell.atoms[0].ncpp.xc_func == "LC_WPBE" || ucell.atoms[0].ncpp.xc_func == "LRC_WPBEH" 
-        || ucell.atoms[0].ncpp.xc_func == "CAM_PBEH") {
+    if (ucell.atoms[0].ncpp.xc_func == "HF" || ucell.atoms[0].ncpp.xc_func == "PBE0" || ucell.atoms[0].ncpp.xc_func == "HSE")
+    {
         XC_Functional::set_xc_type("pbe");
     }
-    else if (ucell.atoms[0].ncpp.xc_func == "SCAN0") {
-        XC_Functional::set_xc_type("scan");
+    else if ( ucell.atoms[0].ncpp.xc_func == "LC_PBE" || ucell.atoms[0].ncpp.xc_func == "LC_WPBE"
+        || ucell.atoms[0].ncpp.xc_func == "LRC_WPBEH" || ucell.atoms[0].ncpp.xc_func == "CAM_PBEH" )
+    {
+        XC_Functional::set_xc_type("pbe");
+    }
+    // added by jghan, 2024-07-07
+    else if ( ucell.atoms[0].ncpp.xc_func == "MULLER" || ucell.atoms[0].ncpp.xc_func == "POWER"
+        || ucell.atoms[0].ncpp.xc_func == "WP22" || ucell.atoms[0].ncpp.xc_func == "CWP22" )
+    {
+        XC_Functional::set_xc_type("pbe");
     }
-    else if (ucell.atoms[0].ncpp.xc_func == "B3LYP") {
+    else if (ucell.atoms[0].ncpp.xc_func == "B3LYP")
+    {
         XC_Functional::set_xc_type("blyp");
     }
+    else if (ucell.atoms[0].ncpp.xc_func == "SCAN0")
+    {
+        XC_Functional::set_xc_type("scan");
+    }
 }
 
 // The setting values of functional id according to the index in LIBXC
@@ -316,3 +327,42 @@ void XC_Functional::set_xc_type(const std::string xc_func_in)
 #endif
 
 }
+
+std::string XC_Functional::output_info()
+{
+  #ifdef USE_LIBXC
+    if(use_libxc)
+    {
+        std::stringstream ss;
+        ss<<" Libxc v"<<xc_version_string()<<std::endl;
+        ss<<"\t"<<xc_reference()<<std::endl;
+
+        std::vector<xc_func_type> funcs = XC_Functional_Libxc::init_func(func_id, XC_UNPOLARIZED);
+        for(const auto &func : funcs)
+        {
+            const xc_func_info_type *info = xc_func_get_info(&func);
+            ss<<" XC: "<<xc_func_info_get_name(info)<<std::endl;
+            for(int i=0; i<XC_MAX_REFERENCES; ++i)
+            {
+                const func_reference_type *ref = xc_func_info_get_references(func.info, i);
+                if(ref)
+                    ss<<"\t"<<xc_func_reference_get_ref(ref)<<std::endl;
+            }
+        }
+        XC_Functional_Libxc::finish_func(funcs);
+        return ss.str();
+    }
+    else
+    {
+        std::string s = " XC:\t";
+        for(const auto &id: func_id)
+            s += std::string(xc_functional_get_name(id))+"\t";
+        return s;
+    }
+  #else
+    std::string s = " XC:\t";
+    for(const auto &id: func_id)
+        s += std::to_string(id)+"\t";
+    return s;
+  #endif
+}

source/source_hamilt/module_xc/xc_functional.h

@@ -83,6 +83,8 @@ class XC_Functional
     /// Usually in exx caculation, the first SCF loop should be converged with PBE
     static void set_xc_first_loop(const UnitCell& ucell);
 
+	static std::string output_info();
+
 	private:
 
 	static std::vector<int> func_id; // libxc id of functional

source/source_hamilt/module_xc/xc_functional_libxc.cpp

@@ -40,7 +40,7 @@ bool not_supported_xc_with_nonlocal_vdw(const std::string& xc_func_in)
 
 	if(xc_func.find("VV10") != std::string::npos) { return true; }
 	/* known excluded: GGA_XC_VV10, HYB_GGA_XC_LC_VV10, MGGA_C_REVSCAN_VV10, MGGA_C_SCAN_VV10, 
-	            	   MGGA_C_SCANL_VV10, MGGA_XC_VCML_RVV10 */
+	                   MGGA_C_SCANL_VV10, MGGA_XC_VCML_RVV10 */
 
 	const std::vector<std::string> not_supported = {"C09X", "VCML", "HYB_MGGA_XC_WB97M_V", "MGGA_XC_B97M_V"};
 	for(const std::string& str : not_supported)
@@ -54,8 +54,8 @@ bool not_supported_xc_with_nonlocal_vdw(const std::string& xc_func_in)
 	{
 		std::cout << " WARNING: range-seperated XC omega-B97 family with nonlocal correction term is used.\n" 
 		          << "          if you are not planning to use these functionals like wB97X-D3BJ that:\n"
-				  << "          XC_GGA_XC_WB97X_V with specified D3BJ DFT-D3 parameters, this is not what\n"
-				  << "          you want." << std::endl;
+		          << "          XC_GGA_XC_WB97X_V with specified D3BJ DFT-D3 parameters, this is not what\n"
+		          << "          you want." << std::endl;
 	}
 	return false;
 }
@@ -92,7 +92,7 @@ int xc_func_type_classifier(const std::string& xc_func,
 std::pair<int,std::vector<int>> 
 XC_Functional_Libxc::set_xc_type_libxc(const std::string& xc_func_in)
 {
-    // check if the functional involves Laplacian of rho
+	// check if the functional involves Laplacian of rho
 	if (not_supported_xc_with_laplacian(xc_func_in))
 	{
 		ModuleBase::WARNING_QUIT("XC_Functional::set_xc_type_libxc",
@@ -120,14 +120,14 @@ XC_Functional_Libxc::set_xc_type_libxc(const std::string& xc_func_in)
 	}
 
 	// check if there is None (no, we dont check it)
-    int func_type = xcfunc_type_.front(); // all functionals are of the same type
+	int func_type = xcfunc_type_.front(); // all functionals are of the same type
 	// if (func_type == 0)
 	// {
 	// 	ModuleBase::WARNING_QUIT("XC_Functional::set_xc_type_libxc",
 	// 		"Unrecognized functional type in '" + xc_func_in + "'.");
 	// }
 
-    // determine the functional id
+	// determine the functional id
 	std::vector<int> func_id(xcfunc_words_.size(), -1);
 	std::transform(xcfunc_words_.begin(), xcfunc_words_.end(), func_id.begin(),
 		[](const std::string& func) { return xc_functional_get_number(func.c_str()); });
@@ -144,7 +144,7 @@ XC_Functional_Libxc::set_xc_type_libxc(const std::string& xc_func_in)
 	}
 
 	// return
-    return std::make_pair(func_type, func_id);
+	return std::make_pair(func_type, func_id);
 }
 
 const std::vector<double> in_built_xc_func_ext_params(const int id)
@@ -176,45 +176,45 @@ const std::vector<double> in_built_xc_func_ext_params(const int id)
 			return {0.04918, 0.132, 0.2533, 0.349, 
 					0.35/2.29, 2.0/2.29, GlobalC::exx_info.info_global.hse_omega};
 		// Long-range corrected functionals:
-        case XC_HYB_GGA_XC_LC_PBEOP:  // LC version of PBE
+		case XC_HYB_GGA_XC_LC_PBEOP:  // LC version of PBE
 		{
-            // This is a range-separated hybrid functional with range-separation constant  0.330,
-            // and  0.0% short-range and 100.0% long-range exact exchange,
-            // using the error function kernel.
+			// This is a range-separated hybrid functional with range-separation constant  0.330,
+			// and  0.0% short-range and 100.0% long-range exact exchange,
+			// using the error function kernel.
 			return { GlobalC::exx_info.info_global.hse_omega }; //Range separation constant: 0.33
 		}
-        case XC_HYB_GGA_XC_LC_WPBE:  // Long-range corrected PBE (LC-wPBE) by Vydrov and Scuseria
+		case XC_HYB_GGA_XC_LC_WPBE:  // Long-range corrected PBE (LC-wPBE) by Vydrov and Scuseria
 		{
-            // This is a range-separated hybrid functional with range-separation constant  0.400,
-            // and  0.0% short-range and 100.0% long-range exact exchange,
-            // using the error function kernel.
+			// This is a range-separated hybrid functional with range-separation constant  0.400,
+			// and  0.0% short-range and 100.0% long-range exact exchange,
+			// using the error function kernel.
 			return { std::stod(PARAM.inp.exx_fock_alpha[0]),  //Fraction of Hartree-Fock exchange: 1.0
 				std::stod(PARAM.inp.exx_erfc_alpha[0]),  //Fraction of short-range exact exchange: -1.0
 				GlobalC::exx_info.info_global.hse_omega }; //Range separation constant: 0.4
 		}
-        case XC_HYB_GGA_XC_LRC_WPBE:  // Long-range corrected PBE (LRC-wPBE) by by Rohrdanz, Martins and Herbert
+		case XC_HYB_GGA_XC_LRC_WPBE:  // Long-range corrected PBE (LRC-wPBE) by by Rohrdanz, Martins and Herbert
 		{
-            // This is a range-separated hybrid functional with range-separation constant  0.300,
-            // and  0.0% short-range and 100.0% long-range exact exchange,
-            // using the error function kernel.
+			// This is a range-separated hybrid functional with range-separation constant  0.300,
+			// and  0.0% short-range and 100.0% long-range exact exchange,
+			// using the error function kernel.
 			return { std::stod(PARAM.inp.exx_fock_alpha[0]),  //Fraction of Hartree-Fock exchange: 1.0
 				std::stod(PARAM.inp.exx_erfc_alpha[0]),  //Fraction of short-range exact exchange: -1.0
 				GlobalC::exx_info.info_global.hse_omega }; //Range separation constant: 0.3
 		}
-        case XC_HYB_GGA_XC_LRC_WPBEH:  // Long-range corrected short-range hybrid PBE (LRC-wPBEh) by Rohrdanz, Martins and Herbert
+		case XC_HYB_GGA_XC_LRC_WPBEH:  // Long-range corrected short-range hybrid PBE (LRC-wPBEh) by Rohrdanz, Martins and Herbert
 		{
-            // This is a range-separated hybrid functional with range-separation constant  0.200,
-            // and 20.0% short-range and 100.0% long-range exact exchange,
-            // using the error function kernel.	
+			// This is a range-separated hybrid functional with range-separation constant  0.200,
+			// and 20.0% short-range and 100.0% long-range exact exchange,
+			// using the error function kernel.	
 			return { std::stod(PARAM.inp.exx_fock_alpha[0]),  //Fraction of Hartree-Fock exchange: 1.0
 				std::stod(PARAM.inp.exx_erfc_alpha[0]),  //Fraction of short-range exact exchange: -0.8
 				GlobalC::exx_info.info_global.hse_omega }; //Range separation constant: 0.2
 		}
-        case XC_HYB_GGA_XC_CAM_PBEH:  // CAM hybrid screened exchange PBE version
+		case XC_HYB_GGA_XC_CAM_PBEH:  // CAM hybrid screened exchange PBE version
 		{
-            // This is a range-separated hybrid functional with range-separation constant  0.700,
-            // and 100.0% short-range and 20.0% long-range exact exchange,
-            // using the error function kernel.
+			// This is a range-separated hybrid functional with range-separation constant  0.700,
+			// and 100.0% short-range and 20.0% long-range exact exchange,
+			// using the error function kernel.
 			return { std::stod(PARAM.inp.exx_fock_alpha[0]),  //Fraction of Hartree-Fock exchange: 0.2
 				std::stod(PARAM.inp.exx_erfc_alpha[0]),  //Fraction of short-range exact exchange: 0.8
 				GlobalC::exx_info.info_global.hse_omega }; //Range separation constant: 0.7
@@ -287,10 +287,10 @@ XC_Functional_Libxc::init_func(const std::vector<int> &func_id,
 
 void XC_Functional_Libxc::finish_func(std::vector<xc_func_type> &funcs)
 {
-    for(xc_func_type func : funcs)
+	for(xc_func_type func : funcs)
 	{
-        xc_func_end(&func);
-    }
+		xc_func_end(&func);
+	}
 }
 
 #endif

source/source_hamilt/module_xc/xc_functional_libxc.h

@@ -53,13 +53,13 @@ namespace XC_Functional_Libxc
 //  xc_functional_libxc_vxc.cpp
 //-------------------
 
-	extern std::tuple<double,double,ModuleBase::matrix> v_xc_libxc(
-		const std::vector<int> &func_id,
-		const int &nrxx, // number of real-space grid
-		const double &omega, // volume of cell
-		const double tpiba,
-		const Charge* const chr, // charge density
-		const std::map<int, double>* scaling_factor = nullptr); // added by jghan, 2024-10-10
+    extern std::tuple<double,double,ModuleBase::matrix> v_xc_libxc(
+        const std::vector<int> &func_id,
+        const int &nrxx, // number of real-space grid
+        const double &omega, // volume of cell
+        const double tpiba,
+        const Charge* const chr, // charge density
+        const std::map<int, double>* scaling_factor = nullptr); // added by jghan, 2024-10-10
 
     // for mGGA functional
     extern std::tuple<double,double,ModuleBase::matrix,ModuleBase::matrix> v_xc_meta(

source/source_lcao/module_ri/Exx_LRI_interface.hpp

@@ -135,20 +135,7 @@ void Exx_LRI_Interface<T, Tdata>::exx_beforescf(const int istep,
         }
         else
         {
-            if (ucell.atoms[0].ncpp.xc_func == "HF" || ucell.atoms[0].ncpp.xc_func == "PBE0" || ucell.atoms[0].ncpp.xc_func == "HSE")
-            {
-                XC_Functional::set_xc_type("pbe");
-            }
-            else if (ucell.atoms[0].ncpp.xc_func == "SCAN0")
-            {
-                XC_Functional::set_xc_type("scan");
-            }
-            // added by jghan, 2024-07-07
-            else if ( ucell.atoms[0].ncpp.xc_func == "MULLER" || ucell.atoms[0].ncpp.xc_func == "POWER"
-                || ucell.atoms[0].ncpp.xc_func == "WP22" || ucell.atoms[0].ncpp.xc_func == "CWP22" )
-            {
-                XC_Functional::set_xc_type("pbe");
-            }
+            XC_Functional::set_xc_first_loop(ucell);
         }
 
         this->cal_exx_ions(ucell,PARAM.inp.out_ri_cv);
@@ -313,7 +300,7 @@ void Exx_LRI_Interface<T, Tdata>::exx_iter_finish(const K_Vectors& kv,
         {
             chgmix.close_kerker_gg0();
         }
-// mohan update 2025-11-04
+        // mohan update 2025-11-04
         this->dm_last_step = dm;
         conv_esolver = this->exx_after_converge(
             ucell,