SyntheticTiledGrid Struct Reference

Collaboration diagram for SyntheticTiledGrid:

Public Member Functions
DNDS::index	cellGlobal (DNDS::index rank, DNDS::index localRow, DNDS::index localCol) const
DNDS::index	cellOwnerRank (DNDS::index gr, DNDS::index gc) const
DNDS::index	nodeGlobal (DNDS::index r, DNDS::index c) const
void	build (DNDS::index tileN, const MPIInfo &mpi)
DNDS::index	expectedGhostNodesN (DNDS::index nLayers) const
std::set< DNDS::index >	expectedGhostCells (const MPIInfo &mpi) const
std::set< DNDS::index >	expectedGhostNodesFromOwnedCells (const MPIInfo &mpi) const
DNDS::index	expectedGhostCellsN (DNDS::index nLayers) const
	Analytical n-layer cell ghost count.

Public Attributes
bool	periodic {false}
DNDS::index	N
DNDS::index	totalCols
DNDS::index	totalRows
DNDS::index	nCellLocal
DNDS::index	nNodeLocal
DNDS::index	colStart
DNDS::index	colEnd
DNDS::index	rowStart
DNDS::index	rowEnd
DNDS::index	rankCol
DNDS::index	rankRow
DNDS::index	ranksPerRow
DNDS::index	ranksPerCol
std::vector< DNDS::index >	ownerNodeOffsets
tAdjPair	cell2cell
tAdjPair	cell2node
ssp< GlobalOffsetsMapping >	cellGM
ssp< GlobalOffsetsMapping >	nodeGM

Detailed Description

Generate a tiled NxN quad grid: each rank owns one NxN tile. The global mesh is N rows × (np*N) columns of quad cells.

Rank 0 tile Rank 1 tile Rank 2 tile ... [0,N)×[0,N) [0,N)×[N,2N) [0,N)×[2N,3N)

Cell (row r, col c) has global index r * totalCols + c, where totalCols = np * N.

Node (row r, col c) has global index r * (totalCols + 1) + c.

Each rank owns cells with col in [rank*N, (rank+1)*N). Ghost cells: 1-ring node-neighbors across tile boundaries.

NOTE: Node global indices are row-major across the full (N+1)×(np*N+1) grid, so they are NOT rank-contiguous. The node GlobalOffsetsMapping from setMPIAlignBcast assigns contiguous ownership ranges (rank 0 owns [0, nNodeLocal_0), rank 1 owns [nNodeLocal_0, ...)). This abstract partition does NOT align with geometric locality — a rank's "owned" range may include node indices physically located on other ranks' tiles. The test is self-consistent: both the evaluator and the analytical expected-value functions use the same nodeGM, so ghost counts are exact within this abstract partition.

Definition at line 374 of file test_MeshConnectivity_Ghost.cpp.

Member Function Documentation

build()

void SyntheticTiledGrid::build ( DNDS::index  tileN, const MPIInfo &  mpi  )

inline

Definition at line 418 of file test_MeshConnectivity_Ghost.cpp.

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cellGlobal()

DNDS::index SyntheticTiledGrid::cellGlobal ( DNDS::index  rank, DNDS::index  localRow, DNDS::index  localCol  ) const

inline

Definition at line 385 of file test_MeshConnectivity_Ghost.cpp.

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cellOwnerRank()

DNDS::index SyntheticTiledGrid::cellOwnerRank ( DNDS::index  gr, DNDS::index  gc  ) const

inline

Definition at line 389 of file test_MeshConnectivity_Ghost.cpp.

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expectedGhostCells()

std::set< DNDS::index > SyntheticTiledGrid::expectedGhostCells ( const MPIInfo &  mpi ) const

inline

Definition at line 528 of file test_MeshConnectivity_Ghost.cpp.

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expectedGhostCellsN()

DNDS::index SyntheticTiledGrid::expectedGhostCellsN ( DNDS::index  nLayers ) const

inline

Analytical n-layer cell ghost count.

Definition at line 558 of file test_MeshConnectivity_Ghost.cpp.

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expectedGhostNodesFromOwnedCells()

std::set< DNDS::index > SyntheticTiledGrid::expectedGhostNodesFromOwnedCells ( const MPIInfo &  mpi ) const

inline

Definition at line 542 of file test_MeshConnectivity_Ghost.cpp.

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expectedGhostNodesN()

DNDS::index SyntheticTiledGrid::expectedGhostNodesN ( DNDS::index  nLayers ) const

inline

Definition at line 520 of file test_MeshConnectivity_Ghost.cpp.

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nodeGlobal()

DNDS::index SyntheticTiledGrid::nodeGlobal ( DNDS::index  r, DNDS::index  c  ) const

inline

Node global index via per-rank local matrix. Node at (r,c) belongs to cellOwnerRank(r,c). Its local (row,col) within that rank and its rank's offset give the 1-D global index. Periodic nodes wrap.

Definition at line 398 of file test_MeshConnectivity_Ghost.cpp.

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Member Data Documentation

cell2cell

tAdjPair SyntheticTiledGrid::cell2cell

Definition at line 382 of file test_MeshConnectivity_Ghost.cpp.

cell2node

tAdjPair SyntheticTiledGrid::cell2node

Definition at line 382 of file test_MeshConnectivity_Ghost.cpp.

cellGM

ssp<GlobalOffsetsMapping> SyntheticTiledGrid::cellGM

Definition at line 383 of file test_MeshConnectivity_Ghost.cpp.

colEnd

DNDS::index SyntheticTiledGrid::colEnd

Definition at line 379 of file test_MeshConnectivity_Ghost.cpp.

colStart

DNDS::index SyntheticTiledGrid::colStart

Definition at line 379 of file test_MeshConnectivity_Ghost.cpp.

N

DNDS::index SyntheticTiledGrid::N

Definition at line 377 of file test_MeshConnectivity_Ghost.cpp.

nCellLocal

DNDS::index SyntheticTiledGrid::nCellLocal

Definition at line 378 of file test_MeshConnectivity_Ghost.cpp.

nNodeLocal

DNDS::index SyntheticTiledGrid::nNodeLocal

Definition at line 378 of file test_MeshConnectivity_Ghost.cpp.

nodeGM

ssp<GlobalOffsetsMapping> SyntheticTiledGrid::nodeGM

Definition at line 383 of file test_MeshConnectivity_Ghost.cpp.

ownerNodeOffsets

std::vector<DNDS::index> SyntheticTiledGrid::ownerNodeOffsets

Definition at line 381 of file test_MeshConnectivity_Ghost.cpp.

periodic

bool SyntheticTiledGrid::periodic {false}

Definition at line 376 of file test_MeshConnectivity_Ghost.cpp.

rankCol

DNDS::index SyntheticTiledGrid::rankCol

Definition at line 380 of file test_MeshConnectivity_Ghost.cpp.

rankRow

DNDS::index SyntheticTiledGrid::rankRow

Definition at line 380 of file test_MeshConnectivity_Ghost.cpp.

ranksPerCol

DNDS::index SyntheticTiledGrid::ranksPerCol

Definition at line 380 of file test_MeshConnectivity_Ghost.cpp.

ranksPerRow

DNDS::index SyntheticTiledGrid::ranksPerRow

Definition at line 380 of file test_MeshConnectivity_Ghost.cpp.

rowEnd

DNDS::index SyntheticTiledGrid::rowEnd

Definition at line 379 of file test_MeshConnectivity_Ghost.cpp.

rowStart

DNDS::index SyntheticTiledGrid::rowStart

Definition at line 379 of file test_MeshConnectivity_Ghost.cpp.

totalCols

DNDS::index SyntheticTiledGrid::totalCols

Definition at line 377 of file test_MeshConnectivity_Ghost.cpp.

totalRows

DNDS::index SyntheticTiledGrid::totalRows

Definition at line 377 of file test_MeshConnectivity_Ghost.cpp.

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

• /home/runner/work/DNDSR/DNDSR/test/cpp/Geom/test_MeshConnectivity_Ghost.cpp