mpi4py.MPI.Graphcomm

class mpi4py.MPI.Graphcomm

Bases: Topocomm

General graph topology intracommunicator.

static __new__(cls, comm=None)

Parameters:

comm (Graphcomm | None) –

Return type:

Self

Methods Summary

Get_dims()	Return the number of nodes and edges.
Get_neighbors(rank)	Return list of neighbors of a process.
Get_neighbors_count(rank)	Return number of neighbors of a process.
Get_topo()	Return index and edges.

Attributes Summary

dims	Number of nodes and edges.
edges	Edges.
index	Index.
nedges	Number of edges.
neighbors	Neighbors.
nneighbors	Number of neighbors.
nnodes	Number of nodes.
topo	Topology information.

Methods Documentation

Get_dims()

Return the number of nodes and edges.

Return type:

tuple[int, int]

Get_neighbors(rank)

Return list of neighbors of a process.

Parameters:

rank (int) –

Return type:

list[int]

Get_neighbors_count(rank)

Return number of neighbors of a process.

Parameters:

rank (int) –

Return type:

int

Get_topo()

Return index and edges.

Return type:

tuple[list[int], list[int]]

Attributes Documentation

dims

Number of nodes and edges.

edges

Edges.

index

Index.

nedges

Number of edges.

neighbors

Neighbors.

nneighbors

Number of neighbors.

nnodes

Number of nodes.

topo

Topology information.