q3::FileMeanFieldBandSource Class Reference

#include <checkpoint.hpp>

Inheritance diagram for q3::FileMeanFieldBandSource:

Public Member Functions
	FileMeanFieldBandSource (std::string file_path, std::streamoff coefficient_block_offset, int number_of_bands, std::vector< int > plane_waves_per_kpoint)
const Complex *	coefficients (int kpoint_state_index, int band_index) const override
Public Member Functions inherited from q3::MeanFieldBandSource
virtual	~MeanFieldBandSource ()=default

Detailed Description

Band source that reads coefficients back from a mean-field record file.

Caches exactly one k-point: exporters walk (k, band) in order, so this turns into one sequential read per k-point while keeping peak memory to a single k-point's worth of coefficients rather than the whole wavefunction set.

Definition at line 104 of file checkpoint.hpp.

Constructor & Destructor Documentation

FileMeanFieldBandSource()

q3::FileMeanFieldBandSource::FileMeanFieldBandSource ( std::string  file_path, std::streamoff  coefficient_block_offset, int  number_of_bands, std::vector< int >  plane_waves_per_kpoint  )

inline

Definition at line 106 of file checkpoint.hpp.

Member Function Documentation

coefficients()

const Complex * q3::FileMeanFieldBandSource::coefficients ( int  kpoint_state_index, int  band_index  ) const

inlineoverridevirtual

kpoint_state_index is the (k-point, spin) state index, matching the eigenvalue/occupation row convention below – not the physical k-point index. They coincide only for a spin-unpolarized run.

Implements q3::MeanFieldBandSource.

Definition at line 125 of file checkpoint.hpp.

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The documentation for this class was generated from the following file:

• src/io/mean_field_record/checkpoint.hpp