Struct Scine::Sparrow::SparrowState

struct SparrowState : public State

Definition of a calculation state for NDDO methods.

The calculation state is defined as being a collection of the density matrix, optionally the Fock matrix and the one and two electron matrices. Only matrix states are saved here.

Public Functions

SparrowState(Utils::StateSize size, GenericMethodWrapper &methodWrapper)

Constructor, calls the base class constructor to initialize the size of the state.

const Eigen::MatrixXd &getMatrixState(const std::string &matrixState) const

Getter for a Eigen::MatrixXd state identified with a std::string.

Return

The value of the key-value pair, an Eigen::MatrixXd.

Parameters

• matrixState: The key for the state’s key-value pair.

const std::string &getStringState(const std::string &stringState) const

Getter for a std::string state identified with a std::string.

Return

The value of the key-value pair, a std::string.

Parameters

• stringState: The key for the state’s key-value pair.

int getIntState(const std::string &intState) const

Getter for a integer state identified with a std::string.

Return

The value of the key-value pair, an integer.

Parameters

• intState: The key for the state’s key-value pair.

double getDoubleState(const std::string &doubleState) const

Getter for a double state identified with a std::string.

Return

The value of the key-value pair, a double.

Parameters

• doubleState: The key for the state’s key-value pair.

void initialize()

Initializer for the state, resets it to the initial state.

In this case the initial state is just the initial density matrix guess.