int
HYPRE_SStructGraphCreate( MPI_Comm comm,
HYPRE_SStructGrid grid,
HYPRE_SStructGraph *graph_ptr )
{
int ierr = 0;
hypre_SStructGraph *graph;
int nparts;
hypre_SStructStencil ***stencils;
hypre_SStructPGrid **pgrids;
int nvars;
int part, var;
graph = hypre_TAlloc(hypre_SStructGraph, 1);
hypre_SStructGraphComm(graph) = comm;
hypre_SStructGraphNDim(graph) = hypre_SStructGridNDim(grid);
hypre_SStructGridRef(grid, &hypre_SStructGraphGrid(graph));
nparts = hypre_SStructGridNParts(grid);
hypre_SStructGraphNParts(graph) = nparts;
pgrids = hypre_SStructGridPGrids(grid);
hypre_SStructGraphPGrids(graph) = pgrids;
stencils = hypre_TAlloc(hypre_SStructStencil **, nparts);
for (part = 0; part < nparts; part++)
{
nvars = hypre_SStructPGridNVars(pgrids[part]);
stencils[part] = hypre_TAlloc(hypre_SStructStencil *, nvars);
for (var = 0; var < nvars; var++)
{
stencils[part][var] = NULL;
}
}
hypre_SStructGraphStencils(graph) = stencils;
hypre_SStructGraphNUVEntries(graph) = 0;
hypre_SStructGraphAUVEntries(graph) = 0;
hypre_SStructGraphIUVEntries(graph) = NULL;
hypre_SStructGraphUVEntries(graph) = NULL;
hypre_SStructGraphTotUEntries(graph) = 0;
hypre_SStructGraphRefCount(graph) = 1;
hypre_SStructGraphObjectType(graph) = HYPRE_SSTRUCT;
*graph_ptr = graph;
return ierr;
}
HYPRE_Int
HYPRE_SStructGraphCreate( MPI_Comm comm,
HYPRE_SStructGrid grid,
HYPRE_SStructGraph *graph_ptr )
{
hypre_SStructGraph *graph;
HYPRE_Int nparts;
hypre_SStructStencil ***stencils;
hypre_SStructPGrid **pgrids;
HYPRE_Int *fem_nsparse;
HYPRE_Int **fem_sparse_i;
HYPRE_Int **fem_sparse_j;
HYPRE_Int **fem_entries;
HYPRE_Int nvars;
HYPRE_Int part, var;
graph = hypre_TAlloc(hypre_SStructGraph, 1);
hypre_SStructGraphComm(graph) = comm;
hypre_SStructGraphNDim(graph) = hypre_SStructGridNDim(grid);
hypre_SStructGridRef(grid, &hypre_SStructGraphGrid(graph));
hypre_SStructGridRef(grid, &hypre_SStructGraphDomainGrid(graph));
nparts = hypre_SStructGridNParts(grid);
hypre_SStructGraphNParts(graph) = nparts;
pgrids = hypre_SStructGridPGrids(grid);
stencils = hypre_TAlloc(hypre_SStructStencil **, nparts);
fem_nsparse = hypre_TAlloc(HYPRE_Int, nparts);
fem_sparse_i = hypre_TAlloc(HYPRE_Int *, nparts);
fem_sparse_j = hypre_TAlloc(HYPRE_Int *, nparts);
fem_entries = hypre_TAlloc(HYPRE_Int *, nparts);
for (part = 0; part < nparts; part++)
{
nvars = hypre_SStructPGridNVars(pgrids[part]);
stencils[part] = hypre_TAlloc(hypre_SStructStencil *, nvars);
fem_nsparse[part] = 0;
fem_sparse_i[part] = NULL;
fem_sparse_j[part] = NULL;
fem_entries[part] = NULL;
for (var = 0; var < nvars; var++)
{
stencils[part][var] = NULL;
}
}
hypre_SStructGraphStencils(graph) = stencils;
hypre_SStructGraphFEMNSparse(graph) = fem_nsparse;
hypre_SStructGraphFEMSparseJ(graph) = fem_sparse_i;
hypre_SStructGraphFEMSparseI(graph) = fem_sparse_j;
hypre_SStructGraphFEMEntries(graph) = fem_entries;
hypre_SStructGraphNUVEntries(graph) = 0;
hypre_SStructGraphAUVEntries(graph) = 0;
hypre_SStructGraphIUVEntries(graph) = NULL;
hypre_SStructGraphUVEntries(graph) = NULL;
hypre_SStructGraphTotUEntries(graph) = 0;
hypre_SStructGraphRefCount(graph) = 1;
hypre_SStructGraphObjectType(graph) = HYPRE_SSTRUCT;
hypre_SStructGraphEntries(graph) = NULL;
hypre_SStructNGraphEntries(graph) = 0;
hypre_SStructAGraphEntries(graph) = 0;
*graph_ptr = graph;
return hypre_error_flag;
}