コード例 #1
0
    def __init__(self,
                 structure: Union[Structure, Molecule],
                 max_drift: float = 3e-3,
                 max_force: float = 4.5e-3,
                 max_iter: int = 200,
                 project_name: str = "Relax",
                 optimizer: str = "BFGS",
                 override_default_params: Dict = {},
                 **kwargs):
        """
        Args:
            structure:
            max_drift: Convergence criterion for the maximum geometry change between the current and the
                last optimizer iteration. This keyword cannot be repeated and it expects precisely one real.
                Default value: 3.00000000E-003
                Default unit: [bohr]
            max_force (float): Convergence criterion for the maximum force component of the current configuration.
                This keyword cannot be repeated and it expects precisely one real.
                Default value: 4.50000000E-004
                Default unit: [bohr^-1*hartree]
            max_iter (int): Specifies the maximum number of geometry optimization steps.
                One step might imply several force evaluations for the CG and LBFGS optimizers.
                This keyword cannot be repeated and it expects precisely one integer.
                Default value: 200
            optimizer (str): Specify which method to use to perform a geometry optimization.
                This keyword cannot be repeated and it expects precisely one keyword. BFGS is a
                quasi-newtonian method, and will best for "small" systems near the minimum. LBFGS
                is a limited memory version that can be used for "large" (>1000 atom) systems when
                efficiency outweights robustness. CG is more robust, especially when you are far from
                the minimum, but it slower.
                Default value: BFGS
        """
        super().__init__(structure, **kwargs)

        self.structure = structure
        self.max_drift = max_drift
        self.max_force = max_force
        self.max_iter = max_iter
        self.project_name = project_name
        self.optimizer = optimizer
        self.override_default_params = override_default_params
        self.kwargs = kwargs

        global_section = Global(project_name=project_name, run_type="GEO_OPT")

        geo_opt_params = {
            "TYPE": Keyword("TYPE", "MINIMIZATION"),
            "MAX_DR": Keyword("MAX_DR", max_drift),
            "MAX_FORCE": Keyword("MAX_FORCE", max_force),
            "RMS_DR": Keyword("RMS_DR", 1.5e-3),
            "MAX_ITER": Keyword("MAX_ITER", max_iter),
            "OPTIMIZER": Keyword("OPTIMIZER", optimizer),
        }
        geo_opt = Section("GEO_OPT", subsections={}, keywords=geo_opt_params)
        if not self.check("MOTION"):
            self.insert(Section("MOTION", subsections={}))
        self["MOTION"].insert(geo_opt)
        self.insert(global_section)
        self.modify_dft_print_iters(max_iter + 1, add_last="numeric")
        self.update(override_default_params)
コード例 #2
0
ファイル: sets.py プロジェクト: zooks97/pymatgen
    def __init__(
        self,
        structure: Union[Structure, Molecule],
        project_name: str = "CellOpt",
        override_default_params: Dict = {},
        **kwargs,
    ):
        """
        Args:
            structure: Pymatgen structure object
            max_drift: Convergence criterion for the maximum geometry change between the current and the
                last optimizer iteration. This keyword cannot be repeated and it expects precisely one real.
                Default value: 3.00000000E-003
                Default unit: [bohr]
            max_force (float): Convergence criterion for the maximum force component of the current configuration.
                This keyword cannot be repeated and it expects precisely one real.
                Default value: 4.50000000E-004
                Default unit: [bohr^-1*hartree]
            max_iter (int): Specifies the maximum number of geometry optimization steps.
                One step might imply several force evaluations for the CG and LBFGS optimizers.
                This keyword cannot be repeated and it expects precisely one integer.
                Default value: 200
            optimizer (str): Specify which method to use to perform a geometry optimization.
                This keyword cannot be repeated and it expects precisely one keyword. BFGS is a
                quasi-newtonian method, and will best for "small" systems near the minimum. LBFGS
                is a limited memory version that can be used for "large" (>1000 atom) systems when
                efficiency outweights robustness. CG is more robust, especially when you are far from
                the minimum, but it slower.
                Default value: BFGS
        """
        super().__init__(structure, **kwargs)

        self.structure = structure
        self.project_name = project_name
        self.override_default_params = override_default_params
        self.kwargs = kwargs
        global_section = Global(project_name=project_name, run_type="CELL_OPT")
        self.insert(global_section)
        self.modify_dft_print_iters(self.get("max_iter", 200) + 1,
                                    add_last="numeric")
        self.update(override_default_params)
コード例 #3
0
 def __init__(self,
              structure: Union[Structure, Molecule],
              project_name: str = "Static",
              run_type: str = "ENERGY_FORCE",
              override_default_params: Dict = {},
              **kwargs):
     """
     Args:
         structure: Pymatgen structure object
         project_name (str): What to name this cp2k project (controls naming of files printed out)
         run_type (str): Run type. As a static set it should be one of the static aliases, like 'ENERGY_FORCE'
     """
     super().__init__(structure, **kwargs)
     global_section = Global(project_name=project_name, run_type=run_type)
     self.structure = structure
     self.project_name = project_name
     self.run_type = run_type
     self.override_default_params = override_default_params
     self.insert(global_section)
     self.update(override_default_params)
     self.kwargs = kwargs