Update input keywords description

Author: Growl1234

docs/advanced/input_files/input-main.md

@@ -3988,7 +3988,7 @@
   - d4: Grimme's DFT-D4 dispersion correction method using the external DFT-D4 library
   - none: no vdW correction
 
-  > Note: DFT-D3 damping parameters are loaded from the bundled s-dftd3 v1.5.0 dataset. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.
+  > Note: ABACUS automatically loads DFT-D3 parameters for supported functionals according to dft_functional setting. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.
 - **Default**: none
 
 ### vdw_d4_xc
@@ -4014,13 +4014,13 @@
 
 - **Type**: String
 - **Availability**: *[`vdw_method`](#vdw_method) in [d2, d3_0, d3_bj]*
-- **Description**: Scale factor s6. DFT-D2 keeps its established defaults; for DFT-D3, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the selected default.
+- **Description**: Scale factor s6, which is used to optimize the interaction energy deviations in van der Waals (vdW) corrected calculations. The recommended values of this parameter are dependent on the chosen vdW correction method and the DFT functional being used. For DFT-D2, the recommended values are 0.75 (PBE), 1.2 (BLYP), 1.05 (B-P86), 1.0 (TPSS), and 1.05 (B3LYP); if not set, will use values of PBE functional by default. For DFT-D3, ABACUS will search in built-in dataset based on the dft_functional setting by default; user set value will overwrite the searched value.
 
 ### vdw_s8
 
 - **Type**: String
 - **Availability**: *[`vdw_method`](#vdw_method) in [d3_0, d3_bj]*
-- **Description**: Scale factor s8 for D3(0) and D3(BJ). If not set, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the tabulated value.
+- **Description**: Scale factor s8 for D3(0) and D3(BJ). By default, ABACUS will search in built-in dataset based on the dft_functional setting. User set value will overwrite the searched value.
 
 ### vdw_a1
 

docs/parameters.yaml

@@ -4263,7 +4263,7 @@ parameters:
       * d4: Grimme's DFT-D4 dispersion correction method using the external DFT-D4 library
       * none: no vdW correction
 
-      [NOTE] DFT-D3 damping parameters are loaded from the bundled s-dftd3 v1.5.0 dataset. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.
+      [NOTE] ABACUS automatically loads DFT-D3 parameters for supported functionals according to dft_functional setting. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.
     default_value: none
     unit: ""
     availability: ""
@@ -4291,15 +4291,15 @@ parameters:
     category: vdW correction
     type: String
     description: |
-      Scale factor s6. DFT-D2 keeps its established defaults; for DFT-D3, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the selected default.
+      Scale factor s6, which is used to optimize the interaction energy deviations in van der Waals (vdW) corrected calculations. The recommended values of this parameter are dependent on the chosen vdW correction method and the DFT functional being used. For DFT-D2, the recommended values are 0.75 (PBE), 1.2 (BLYP), 1.05 (B-P86), 1.0 (TPSS), and 1.05 (B3LYP); if not set, will use values of PBE functional by default. For DFT-D3, ABACUS will search in built-in dataset based on the dft_functional setting by default; user set value will overwrite the searched value.
     default_value: ""
     unit: ""
     availability: "vdw_method in [d2, d3_0, d3_bj]"
   - name: vdw_s8
     category: vdW correction
     type: String
     description: |
-      Scale factor s8 for D3(0) and D3(BJ). If not set, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the tabulated value.
+      Scale factor s8 for D3(0) and D3(BJ). By default, ABACUS will search in built-in dataset based on the dft_functional setting. User set value will overwrite the searched value.
     default_value: ""
     unit: ""
     availability: "vdw_method in [d3_0, d3_bj]"

source/source_io/module_parameter/read_inp_model.cpp

@@ -252,7 +252,7 @@ void ReadInput::item_model()
 * d4: Grimme's DFT-D4 dispersion correction method using the external DFT-D4 library
 * none: no vdW correction
 
-[NOTE] DFT-D3 damping parameters are loaded from the bundled s-dftd3 v1.5.0 dataset. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.)";
+[NOTE] ABACUS automatically loads DFT-D3 parameters for supported functionals according to dft_functional setting. Individual user values overwrite the corresponding tabulated values. Setting all four of vdw_s6, vdw_s8, vdw_a1 and vdw_a2 defines a fully custom set and bypasses functional lookup.)";
         item.default_value = "none";
         item.unit = "";
         read_sync_string(input.vdw_method);
@@ -298,7 +298,7 @@ Available options are:
         item.annotation = "scale parameter of d2/d3_0/d3_bj";
         item.category = "vdW correction";
         item.type = "String";
-        item.description = "Scale factor s6. DFT-D2 keeps its established defaults; for DFT-D3, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the selected default.";
+        item.description = "Scale factor s6, which is used to optimize the interaction energy deviations in van der Waals (vdW) corrected calculations. The recommended values of this parameter are dependent on the chosen vdW correction method and the DFT functional being used. For DFT-D2, the recommended values are 0.75 (PBE), 1.2 (BLYP), 1.05 (B-P86), 1.0 (TPSS), and 1.05 (B3LYP); if not set, will use values of PBE functional by default. For DFT-D3, ABACUS will search in built-in dataset based on the dft_functional setting by default; user set value will overwrite the searched value.";
         item.default_value = "";
         item.unit = "";
         item.set_availability("vdw_method in [d2, d3_0, d3_bj]");
@@ -323,7 +323,7 @@ Available options are:
         item.annotation = "scale parameter of d3_0/d3_bj";
         item.category = "vdW correction";
         item.type = "String";
-        item.description = "Scale factor s8 for D3(0) and D3(BJ). If not set, ABACUS loads the s-dftd3 value for dft_functional. A user value overwrites the tabulated value.";
+        item.description = "Scale factor s8 for D3(0) and D3(BJ). By default, ABACUS will search in built-in dataset based on the dft_functional setting. User set value will overwrite the searched value.";
         item.default_value = "";
         item.unit = "";
         item.set_availability("vdw_method in [d3_0, d3_bj]");