Neutral Binding
MPI_GRAPH_CREATE(comm_old, nnodes, index, edges, reorder, comm_graph)
[ IN comm_old] input communicator (handle)
[ IN nnodes] number of nodes in graph (integer)
[ IN index] array of integers describing node degrees (see below)
[ IN edges] array of integers describing graph edges (see below)
[ IN reorder] ranking may be reordered ( true) or not ( false) (logical)
[ OUT comm_graph] communicator with graph topology added (handle)
C Binding
int MPI_Graph_create(MPI_Comm comm_old, int nnodes, int *index, int *edges, int reorder, MPI_Comm *comm_graph)
FORTRAN Binding
MPI_GRAPH_CREATE(COMM_OLD, NNODES, INDEX, EDGES, REORDER, COMM_GRAPH, IERROR)
INTEGER COMM_OLD, NNODES, INDEX(*), EDGES(*), COMM_GRAPH, IERROR
LOGICAL REORDER
C++ Binding
(in the MPI:: namespace)
Graphcomm Intracomm::Create_graph(int nnodes, const int index[], const int edges[], bool reorder) const
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