Utilities¶

Decorators¶

Decorators allow for input checking and default parameter setting for algorithms.

Decorator to validate sampler arguments.

See Coordinates Conversion on instantiating the needed lattice size and setting correct domain and range for coordinates in a QPU working graph.

For the iterator versions of these functions, see the code.

`chimera_coordinates.chimera_to_linear`(q)	Convert a 4-term Chimera coordinate to a linear index.
`chimera_coordinates.linear_to_chimera`(r)	Convert a linear index to a 4-term Chimera coordinate.
`find_chimera_indices`(G)	Attempts to determine the Chimera indices of the nodes in graph G.

`pegasus_coordinates.linear_to_nice`(r)	Convert a linear index into a 5-term nice coordinate.
`pegasus_coordinates.linear_to_pegasus`(r)	Convert a linear index into a 4-term Pegasus coordinate.
`pegasus_coordinates.nice_to_linear`(n)	Convert a 5-term nice coordinate into a linear index.
`pegasus_coordinates.nice_to_pegasus`(n)	Convert a 5-term nice coordinate into a 4-term Pegasus coordinate.
`pegasus_coordinates.pegasus_to_linear`(q)	Convert a 4-term Pegasus coordinate into a linear index.
`pegasus_coordinates.pegasus_to_nice`(p)	Convert a 4-term Pegasus coordinate to a 5-term nice coordinate.

`zephyr_coordinates.graph_to_linear`(g)	Return a copy of the graph g relabeled to have linear indices
`zephyr_coordinates.graph_to_zephyr`(g)	Return a copy of the graph g relabeled to have zephyr coordinates
`zephyr_coordinates.iter_linear_to_zephyr`(rlist)	Return an iterator converting a sequence of linear indices to 5-term Zephyr coordinates.
`zephyr_coordinates.iter_linear_to_zephyr_pairs`(plist)	Return an iterator converting a sequence of pairs of linear indices to pairs of 5-term Zephyr coordinates.
`zephyr_coordinates.iter_zephyr_to_linear`(qlist)	Return an iterator converting a sequence of 5-term Zephyr coordinates to linear indices.
`zephyr_coordinates.iter_zephyr_to_linear_pairs`(plist)	Return an iterator converting a sequence of pairs of 5-term Zephyr coordinates to pairs of linear indices.
`zephyr_coordinates.linear_to_zephyr`(r)	Convert a linear index into a 5-term Zephyr coordinate.
`zephyr_coordinates.zephyr_to_linear`(q)	Convert a 5-term Zephyr coordinate into a linear index.
`zephyr_sublattice_mappings`(source, target[, ...])	Yields mappings from a Chimera or Zephyr graph into a Zephyr graph.

Base exceptions and errors for D-Wave NetworkX.

All exceptions are derived from NetworkXException.

`DWaveNetworkXException`	Base class for exceptions in DWaveNetworkX.
`DWaveNetworkXMissingSampler`	Exception raised by an algorithm requiring a discrete model sampler when none is provided.