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EpetraExt_BlockAdjacencyGraph.h
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41 
42 #ifndef EpetraExt_BLOCK_ADJACENCY_GRAPH_H
43 #define EpetraExt_BLOCK_ADJACENCY_GRAPH_H
44 
45 #if defined(EpetraExt_SHOW_DEPRECATED_WARNINGS)
46 #ifdef __GNUC__
47 #warning "The EpetraExt package is deprecated"
48 #endif
49 #endif
50 
51 class Epetra_CrsGraph;
52 
53 #include <Teuchos_RCP.hpp>
54 #include <vector>
55 
56 namespace EpetraExt {
57 
59 
66 int compare_ints(const void *a, const void *b);
67 
69 
70 public:
71 
73 
76 
78 
81 
83 
91  Teuchos::RCP<Epetra_CrsGraph> compute( Epetra_CrsGraph& B, int nbrr, std::vector<int>&r, std::vector<double>& weights, bool verbose = false);
92 
93 private:
94  template<typename int_type>
95  Teuchos::RCP<Epetra_CrsGraph> compute( Epetra_CrsGraph& B, int nbrr, std::vector<int>&r, std::vector<double>& weights, bool verbose = false);
96 
97  // Some binary search tree helper functions.
98  int* csr_bst( int n );
99  int csr_bstrootindex( int n );
100 
101 };
102 
103 } //namespace EpetraExt
104 
105 #endif //EpetraExt_BLOCK_ADJACENCY_GRAPH_H
Teuchos::RCP< Epetra_CrsGraph > compute(Epetra_CrsGraph &B, int nbrr, std::vector< int > &r, std::vector< double > &weights, bool verbose=false)
Constructs an adjacency graph representing the block connectivity of the input graph, where nbrr is the number of block rows in B and r contains the row index where each block begins.
int compare_ints(const void *a, const void *b)
Given an Epetra_CrsGraph that has block structure, an adjacency graph is constructed representing the...