Class DeepPotModelDevi

Defined in File deepmd.hpp

Class Documentation

class DeepPotModelDevi

Deep Potential model deviation.

Public Functions

inline DeepPotModelDevi(): DP model deviation constructor without initialization.

inline ~DeepPotModelDevi()

inline DeepPotModelDevi(const std::vector<std::string> &models)

DP model deviation constructor with initialization.

Parameters: models – [in] The names of the frozen model file.

inline void init(const std::vector<std::string> &models, const int &gpu_rank = 0, const std::vector<std::string> &file_content = std::vector<std::string>())

Initialize the DP model deviation.

Parameters

model – [in] The name of the frozen model file.
gpu_rank – [in] The GPU rank.
file_content – [in] The content of the frozen model file.

template<typename VALUETYPE> inline void compute(std::vector<double> &ener, std::vector<std::vector<VALUETYPE>> &force, std::vector<std::vector<VALUETYPE>> &virial, const std::vector<VALUETYPE> &coord, const std::vector<int> &atype, const std::vector<VALUETYPE> &box, const int nghost, const InputNlist &lmp_list, const int &ago, const std::vector<VALUETYPE> &fparam = std::vector<VALUETYPE>(), const std::vector<VALUETYPE> &aparam = std::vector<VALUETYPE>())

Evaluate the energy, force and virial by using this DP model deviation.

Parameters

ener – [out] The system energy.
force – [out] The force on each atom.
virial – [out] The virial.
coord – [in] The coordinates of atoms. The array should be of size nframes x natoms x 3.
atype – [in] The atom types. The list should contain natoms ints.
box – [in] The cell of the region. The array should be of size nframes x 9 (PBC) or empty (no PBC).

template<typename VALUETYPE> inline void compute(std::vector<double> &ener, std::vector<std::vector<VALUETYPE>> &force, std::vector<std::vector<VALUETYPE>> &virial, std::vector<std::vector<VALUETYPE>> &atom_energy, std::vector<std::vector<VALUETYPE>> &atom_virial, const std::vector<VALUETYPE> &coord, const std::vector<int> &atype, const std::vector<VALUETYPE> &box, const int nghost, const InputNlist &lmp_list, const int &ago, const std::vector<VALUETYPE> &fparam = std::vector<VALUETYPE>(), const std::vector<VALUETYPE> &aparam = std::vector<VALUETYPE>())

Evaluate the energy, force, virial, atomic energy, and atomic virial by using this DP model deviation.

Parameters

ener – [out] The system energy.
force – [out] The force on each atom.
virial – [out] The virial.
atom_energy – [out] The atomic energy.
atom_virial – [out] The atomic virial.
coord – [in] The coordinates of atoms. The array should be of size nframes x natoms x 3.
atype – [in] The atom types. The list should contain natoms ints.
box – [in] The cell of the region. The array should be of size nframes x 9 (PBC) or empty (no PBC).

inline double cutoff() const

Get the cutoff radius.

Returns: The cutoff radius.

inline int numb_types() const

Get the number of types.

Returns: The number of types.

inline int numb_types_spin() const

Get the number of types with spin.

Returns: The number of types with spin.

inline int dim_fparam() const

Get the dimension of the frame parameter.

Returns: The dimension of the frame parameter.

inline int dim_aparam() const

Get the dimension of the atomic parameter.

Returns: The dimension of the atomic parameter.

template<typename VALUETYPE> inline void compute_avg(std::vector<VALUETYPE> &avg, const std::vector<std::vector<VALUETYPE>> &xx)

Compute the average of vectors.

Parameters

avg – [out] The average of vectors.
xx – [in] The vectors of all models.

template<typename VALUETYPE> inline void compute_std(std::vector<VALUETYPE> &std, const std::vector<VALUETYPE> &avg, const std::vector<std::vector<VALUETYPE>> &xx, const int &stride)

Compute the standard deviation of vectors.

Parameters

std – [out] The standard deviation of vectors.
avg – [in] The average of vectors.
xx – [in] The vectors of all models.
stride – [in] The stride to compute the deviation.

template<typename VALUETYPE> inline void compute_relative_std(std::vector<VALUETYPE> &std, const std::vector<VALUETYPE> &avg, const VALUETYPE eps, const int &stride)

Compute the relative standard deviation of vectors.

Parameters

std – [out] The standard deviation of vectors.
avg – [in] The average of vectors.
eps – [in] The level parameter for computing the deviation.
stride – [in] The stride to compute the deviation.

template<typename VALUETYPE> inline void compute_std_f(std::vector<VALUETYPE> &std, const std::vector<VALUETYPE> &avg, const std::vector<std::vector<VALUETYPE>> &xx)

Compute the standard deviation of forces.

Parameters

std – [out] The standard deviation of forces.
avg – [in] The average of forces.
xx – [in] The vectors of all forces.

template<typename VALUETYPE> inline void compute_relative_std_f(std::vector<VALUETYPE> &std, const std::vector<VALUETYPE> &avg, const VALUETYPE eps)

Compute the relative standard deviation of forces.

Parameters

std – [out] The relative standard deviation of forces.
avg – [in] The relative average of forces.
eps – [in] The level parameter for computing the deviation.