pacman.model.graphs.common package

Module contents

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

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

p

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

Return type:int or None

x

The X-coordinate of the chip.

Return type:int

y

The Y-coordinate of the chip.

Return type:int

class pacman.model.graphs.common.Slice

Bases: pacman.model.graphs.common.slice.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.

as_slice

end

The end positions of the slice in each dimension.

classmethod from_string(as_str)

get_raster_ids(atoms_shape)

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)

Get a slice in the n-th dimension.

Parameters:n (int) – The 0-indexed dimension to get the shape of Type:slice

slices

Slices for every dimension.

Return type:tuple(slice, ..)