IBTK::LEInteractor::IndicesAndShifts Struct Reference

Helper class containing local indices and periodic shifts. More...

Public Member Functions
	IndicesAndShifts (const SAMRAI::hier::Box< NDIM > &ib_box, const SAMRAI::hier::Patch< NDIM > &patch, const double *const X_data, const int X_size, const bool setup_extra_buffer=false)
	IndicesAndShifts (const IndicesAndShifts &)=delete
IndicesAndShifts &	operator= (const IndicesAndShifts &)=delete
	IndicesAndShifts (IndicesAndShifts &&)=delete
IndicesAndShifts &	operator= (IndicesAndShifts &&)=delete

Public Attributes
Eigen::Map< Eigen::VectorXi >	d_local_indices
Eigen::Map< Eigen::VectorXd >	d_periodic_shifts
Eigen::Map< Eigen::VectorXd >	d_buffer

Private Attributes
bool	d_use_stack
SAMRAI::tbox::Array< int >	d_dynamic_local_indices
SAMRAI::tbox::Array< double >	d_dynamic_periodic_shifts
SAMRAI::tbox::Array< double >	d_dynamic_buffer
std::array< int, s_stack_size >	d_stack_local_indices
std::array< double, s_stack_size *NDIM >	d_stack_periodic_shifts
std::array< double, s_stack_size >	d_stack_buffer

Static Private Attributes
static constexpr std::size_t	s_stack_size = 64u

Detailed Description

To avoid reading points not owned by the present patch, the IB kernels take, as a function argument, the indices of points which should be interpolated at or spread from. Some applications call these functions for small numbers of points at a time (e.g. one finite element), whereas others batch things per-patch. To support both cases and avoid unnecessary allocations, this class computes the indices of points which intersect the Patch and stores their indices in an Eigen::Map, which, for small numbers of input points, uses std::array instead of std::vector.

Constructor & Destructor Documentation

IndicesAndShifts() [1/3]

IBTK::LEInteractor::IndicesAndShifts::IndicesAndShifts	(	const SAMRAI::hier::Box< NDIM > &	ib_box,
		const SAMRAI::hier::Patch< NDIM > &	patch,
		const double *const	X_data,
		const int	X_size,
		const bool	setup_extra_buffer = false
	)

Constructor.

IndicesAndShifts() [2/3]

IBTK::LEInteractor::IndicesAndShifts::IndicesAndShifts ( const IndicesAndShifts &  )

delete

Copying is not implemented.

IndicesAndShifts() [3/3]

IBTK::LEInteractor::IndicesAndShifts::IndicesAndShifts ( IndicesAndShifts &&  )

delete

Moving is not implemented.

Member Function Documentation

operator=() [1/2]

IndicesAndShifts& IBTK::LEInteractor::IndicesAndShifts::operator= ( const IndicesAndShifts &  )

delete

Copying is not implemented.

operator=() [2/2]

IndicesAndShifts& IBTK::LEInteractor::IndicesAndShifts::operator= ( IndicesAndShifts &&  )

delete

Moving is not implemented.

Member Data Documentation

s_stack_size

constexpr std::size_t IBTK::LEInteractor::IndicesAndShifts::s_stack_size = 64u

staticconstexprprivate

d_use_stack

bool IBTK::LEInteractor::IndicesAndShifts::d_use_stack

private

d_dynamic_local_indices

SAMRAI::tbox::Array<int> IBTK::LEInteractor::IndicesAndShifts::d_dynamic_local_indices

private

d_dynamic_periodic_shifts

SAMRAI::tbox::Array<double> IBTK::LEInteractor::IndicesAndShifts::d_dynamic_periodic_shifts

private

d_dynamic_buffer

SAMRAI::tbox::Array<double> IBTK::LEInteractor::IndicesAndShifts::d_dynamic_buffer

private

d_stack_local_indices

std::array<int, s_stack_size> IBTK::LEInteractor::IndicesAndShifts::d_stack_local_indices

private

d_stack_periodic_shifts

std::array<double, s_stack_size * NDIM> IBTK::LEInteractor::IndicesAndShifts::d_stack_periodic_shifts

private

d_stack_buffer

std::array<double, s_stack_size> IBTK::LEInteractor::IndicesAndShifts::d_stack_buffer

private

d_local_indices

Eigen::Map<Eigen::VectorXi> IBTK::LEInteractor::IndicesAndShifts::d_local_indices

Array containing the indices of the points which are within the Patch provided to the constructor.

d_periodic_shifts

Eigen::Map<Eigen::VectorXd> IBTK::LEInteractor::IndicesAndShifts::d_periodic_shifts

Array containing periodic shifts. Presently this is all zeros.

d_buffer

Eigen::Map<Eigen::VectorXd> IBTK::LEInteractor::IndicesAndShifts::d_buffer

Array containing an extra buffer (if requested in the constructor by setting setup_extra_buffer = true) which has the same length as d_local_indices.

---

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

• ibtk/include/ibtk/LEInteractor.h