Class CBC_FLUDS

Defined in File cbc_fluds.h

Inheritance Relationships

Base Type

public opensn::FLUDS (Class FLUDS)

Class Documentation

class CBC_FLUDS : public opensn::FLUDS 

Flux data structures (FLUDS) specific to the cell-by-cell (CBC) sweep algorithm.

This class manages the storage and access of angular flux data during a CBC sweep

It provides methods to access:

Upwind angular flux data from local neighbor cells
Storage locations for downwind angular flux data for the current cell
Upwind angular flux data received from remote MPI ranks

Public Types

using CellFaceKey = std::pair<uint64_t, unsigned int>

Public Functions

CBC_FLUDS(unsigned int num_groups, size_t num_angles, const CBC_FLUDSCommonData &common_data, const UnknownManager &psi_uk_man, const SpatialDiscretization &sdm)

virtual const FLUDSCommonData &GetCommonData() const

double *UpwindPsi(const Cell &face_neighbor, unsigned int adj_cell_node, size_t as_ss_idx): Given a local upwind neighbor cell, a node index on this cell, and an angleset subset index, this function returns a pointer to the start of the group data for the specified node and angle.

double *OutgoingPsi(const Cell &cell, unsigned int cell_node, size_t as_ss_idx): Given a local cell, a node index on this cell, and an angleset subset index, this function returns a pointer to the start of the group data for the specified node and angle for writing its just solved angular fluxes.

double *NLUpwindPsi(uint64_t cell_global_id, unsigned int face_id, unsigned int face_node_mapped, size_t as_ss_idx): Given a remote upwind cell’s global ID, a face ID on this cell, a node index on this face, and an angleset subset index, this function returns a pointer to the start of the group data for the specified face node and angle.

double *NLOutgoingPsi(std::vector<double> *psi_nonlocal_outgoing, size_t face_node, size_t as_ss_idx): Given a pointer to a vector holding the non-local outgoing psi data for a face, a node index on this face, and an angleset subset index, this function returns a pointer to the start of the group data for the specified face node and angle.

inline virtual void ClearLocalAndReceivePsi() override

inline virtual void ClearSendPsi() override

inline virtual void AllocateInternalLocalPsi() override

inline virtual void AllocateOutgoingPsi() override

inline virtual void AllocateDelayedLocalPsi() override

inline virtual void AllocatePrelocIOutgoingPsi() override

inline virtual void AllocateDelayedPrelocIOutgoingPsi() override

inline std::map<CellFaceKey, std::vector<double>> &GetDeplocsOutgoingMessages()

Protected Attributes

const CBC_FLUDSCommonData &common_data_

const UnknownManager &psi_uk_man_

const SpatialDiscretization &sdm_

size_t num_angles_in_gs_quadrature_

size_t num_quadrature_local_dofs_

size_t num_local_spatial_dofs_

size_t local_psi_data_size_

std::vector<double> local_psi_data_: Layout for storage for local angular fluxes: spatial DOF major -> angle in angleset major -> group in groupset major.

std::vector<std::vector<double>> boundryI_incoming_psi_

std::map<CellFaceKey, std::vector<double>> deplocs_outgoing_messages_