pacman.model.graphs.common package

Submodules

pacman.model.graphs.common.edge_traffic_type module

class pacman.model.graphs.common.edge_traffic_type.EdgeTrafficType(value)[source]

Bases: IntEnum

Indicates the traffic type of an Edge in a graph.

FIXED_ROUTE = 2

Edge communicates using fixed route packets

MULTICAST = 1

Edge communicates using multicast packets

SDRAM = 3

Edge communicates using shared memory

Module contents

class pacman.model.graphs.common.ChipAndCore(x, y, p=None)[source]

Bases: object

A constraint to place a vertex on a specific chip and, optionally, a specific core on that chip.

Parameters:

  • x (int) – the x-coordinate of the chip

  • y (int) – the y-coordinate of the chip

  • p (int or None) – the processor (if any) of the chip

property p

The processor on the chip, or None if that is not constrained.

Return type:

int or None

property x

The X-coordinate of the chip.

Return type:

int

property y

The Y-coordinate of the chip.

Return type:

int

class pacman.model.graphs.common.Slice(lo_atom, hi_atom, shape=None, start=None)[source]

Bases: Slice

Represents a slice of a vertex.

Attr int lo_atom:

The lowest atom represented in the slice.

Attr int hi_atom:

The highest atom represented in the slice.

Attr int n_atoms:

The number of atoms represented by the slice.

Attr slice as_slice:

This slice represented as a slice object (for use in indexing lists, arrays, etc.)

Attr tuple(int,…) shape:

The shape of the atoms over multiple dimensions. By default the shape will be 1-dimensional.

Attr tuple(int,…) start:

The start coordinates of the slice. By default this will be lo_atom in 1 dimension.

Create a new Slice object.

Parameters:

  • lo_atom (int) – Index of the lowest atom to represent.

  • hi_atom (int) – Index of the highest atom to represent.

Raises:

PacmanValueError – If the bounds of the slice are invalid.

property as_slice
property end

The end positions of the slice in each dimension.

classmethod from_string(as_str)[source]
get_raster_ids(atoms_shape)[source]

Get the IDs of the atoms in the slice as they would appear in a “raster scan” of the atoms over the whole shape.

Parameters:

atoms_shape (tuple(int)) – The size of each dimension of the whole shape

Returns:

A list of the global raster IDs of the atoms in this slice

get_slice(n)[source]

Get a slice in the n’th dimension.

Parameters:

n (int) – The 0-indexed dimension to get the shape of

Type:

slice

property slices

Slices for every dimension.

Return type:

tuple(slice, …)