def build_tile_grid(self, M, N, adj):
'''Build the grid layout from the tile range and adjacency'''
# forget tiles
for key, tile in self.canvas.tiles.items():
tile.setParent(None)
self.canvas.tiles = {}
# release grid widgets
while self.tile_layout.count():
self.tile_layout.takeAt(0).widget().deleteLater()
# determine new canvas size
width = N*TILE_SIZE
height = M*TILE_SIZE
# update Canvas size parameters
self.canvas.w = width
self.canvas.h = height
self.canvas.scaling = 1.
self.canvas.setGeometry(0, 0, width, height)
# convert adjacency dict to tup format if index keyed, assume valid ind
if type(adj.keys()[0]) is int:
adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
self.adj = adj
def build_tile_grid(self, M, N, adj):
'''Build the grid layout from the tile range and adjacency'''
# forget tiles
for key, tile in self.canvas.tiles.items():
tile.setParent(None)
self.canvas.tiles = {}
# release grid widgets
while self.tile_layout.count():
self.tile_layout.takeAt(0).widget().deleteLater()
# determine new canvas size
width = N * TILE_SIZE
height = M * TILE_SIZE
# update Canvas size parameters
self.canvas.w = width
self.canvas.h = height
self.canvas.scaling = 1.
self.canvas.setGeometry(0, 0, width, height)
# convert adjacency dict to tup format if index keyed, assume valid ind
if type(adj.keys()[0]) is int:
adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
self.adj = adj
def load_chimera(self, fname):
'''Load and set the chimera structure'''
try:
M, N, adj = load_chimera_file(fname)
except IOError:
return
self.M = M
self.N = N
self.adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
# forget old grid layout
for tile in self.canvas.tiles:
self.canvas.tiles[tile].setParent(None)
self.canvas.tiles = {}
while self.layout.count():
item = self.layout.takeAt(0)
item.widget().deleteLater()
# resize canvas
width = N * TILE_SIZE
height = M * TILE_SIZE
self.canvas.w = width
self.canvas.h = height
self.canvas.scaling = 1.
self.canvas.setGeometry(0, 0, width, height)
# set up tiles and default nodes
for m in range(M):
for n in range(N):
tile = TileWidget(m, n, parent=self.canvas)
tile.set_nodes(self.adj)
self.layout.addWidget(tile, m, n)
self.canvas.tiles[(m, n)] = tile
tile.show()
self.canvas.update()
def load_chimera(self, fname):
'''Load and set the chimera structure'''
try:
M, N, adj = load_chimera_file(fname)
except IOError:
return
self.M = M
self.N = N
self.adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
# forget old grid layout
for tile in self.canvas.tiles:
self.canvas.tiles[tile].setParent(None)
self.canvas.tiles = {}
while self.layout.count():
item = self.layout.takeAt(0)
item.widget().deleteLater()
# resize canvas
width = N*TILE_SIZE
height = M*TILE_SIZE
self.canvas.w = width
self.canvas.h = height
self.canvas.scaling = 1.
self.canvas.setGeometry(0, 0, width, height)
# set up tiles and default nodes
for m in range(M):
for n in range(N):
tile = TileWidget(m, n, parent=self.canvas)
tile.set_nodes(self.adj)
self.layout.addWidget(tile, m, n)
self.canvas.tiles[(m, n)] = tile
tile.show()
self.canvas.update()
def updateChimera(self, filename):
'''Process a chimera specification file and update the widget'''
try:
M, N, adj = load_chimera_file(filename)
except IOError:
print('Failed to load given file...')
return
# forget old grid layout
for tile in self.tiles:
self.tiles[tile].setParent(None)
self.tiles = {}
while self.layout.count():
item = self.layout.takeAt(0)
item.widget().deleteLater()
# resize canvas
width = N*settings.CHIMERA_TILE_SIZE
height = M*settings.CHIMERA_TILE_SIZE
self.canvas.setGeometry(0, 0, width, height)
# convert adjacency dict to tuple format
adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
self.M = M
self.N = N
self.adj = adj
for m in xrange(M):
for n in xrange(N):
tile = ChimeraTile(self, m, n, adj=adj)
self.tiles[(m, n)] = tile
self.layout.addWidget(tile, m, n)
tile.show()
self.canvas.update()
def updateChimera(self, filename):
'''Process a chimera specification file and update the widget'''
try:
M, N, adj = load_chimera_file(filename)
except IOError:
print('Failed to load given file...')
return
# forget old grid layout
for tile in self.tiles:
self.tiles[tile].setParent(None)
self.tiles = {}
while self.layout.count():
item = self.layout.takeAt(0)
item.widget().deleteLater()
# resize canvas
width = N * settings.CHIMERA_TILE_SIZE
height = M * settings.CHIMERA_TILE_SIZE
self.canvas.setGeometry(0, 0, width, height)
# convert adjacency dict to tuple format
adj = {linear_to_tuple(k, M, N):\
[linear_to_tuple(a, M, N) for a in adj[k]] for k in adj}
self.M = M
self.N = N
self.adj = adj
for m in xrange(M):
for n in xrange(N):
tile = ChimeraTile(self, m, n, adj=adj)
self.tiles[(m, n)] = tile
self.layout.addWidget(tile, m, n)
tile.show()
self.canvas.update()
def run_heur_embedding(self, full_adj=True):
'''Setup and run the Heuristic algorithm'''
# update embedding type in case direct call
self.use_dense = False
active_cells, qca_adj = self.get_reduced_qca_adj()
S_size = len(qca_adj)
A_size = len(self.chimera_adj)
# construct S
S = {}
for i in range(S_size):
c1 = active_cells[i]
for j in range(S_size):
c2 = active_cells[j]
v = 1 if c2 in qca_adj[c1] else 0
S[(i, j)] = v
S[(j, i)] = v
# construct A
A = set()
for qb1 in self.chimera_adj:
for qb2 in self.chimera_adj[qb1]:
l1 = tuple_to_linear(qb1,
self.M,
self.N,
L=self.L,
index0=True)
l2 = tuple_to_linear(qb2,
self.M,
self.N,
L=self.L,
index0=True)
A.add((l1, l2))
try:
print 'Running heuristic embedding'
models = find_embedding(S, S_size, A, A_size)
except Exception as e:
print(e.message())
print 'Embedding finished'
self.good = len(models) == S_size
# map models to standard format
mapper = lambda ind: linear_to_tuple(
ind, self.M, self.N, L=self.L, index0=True)
self.models = {
active_cells[i]: [mapper(c) for c in models[i]]
for i in xrange(S_size)
}
def run_heur_embedding(self, full_adj=True):
'''Setup and run the Heuristic algorithm'''
# update embedding type in case direct call
self.embed_method = 'heur'
active_cells, qca_adj = self.get_reduced_qca_adj()
S_size = len(qca_adj)
A_size = len(self.chimera_adj)
# construct S, the problem adjacency edge list
S = set()
smap = {c: i for i, c in enumerate(active_cells)}
for c1, adj in qca_adj.items():
for c2 in adj:
if c1 < c2:
S.add((smap[c1], smap[c2]))
# construct A, the chimera adjacency edge list
A = set()
for qb1 in self.chimera_adj:
for qb2 in self.chimera_adj[qb1]:
l1 = tuple_to_linear(qb1,
self.M,
self.N,
L=self.L,
index0=True)
l2 = tuple_to_linear(qb2,
self.M,
self.N,
L=self.L,
index0=True)
A.add((l1, l2))
try:
print 'Running heuristic embedding'
#models = find_embedding(S, S_size, A, A_size)
models = find_embedding(S, A)
except Exception as e:
print(e.message())
print 'Embedding finished'
self.good = len(models) == S_size
# map models to standard format
mapper = lambda ind: linear_to_tuple(
ind, self.M, self.N, L=self.L, index0=True)
self.models = {
active_cells[i]: [mapper(c) for c in model]
for i, model in enumerate(models)
}
def run_heur_embedding(self, full_adj=True):
'''Setup and run the Heuristic algorithm'''
# update embedding type in case direct call
self.use_dense = False
active_cells, qca_adj = self.get_reduced_qca_adj()
S_size = len(qca_adj)
A_size = len(self.chimera_adj)
# construct S
S = {}
for i in range(S_size):
c1 = active_cells[i]
for j in range(S_size):
c2 = active_cells[j]
v = 1 if c2 in qca_adj[c1] else 0
S[(i, j)] = v
S[(j, i)] = v
# construct A
A = set()
for qb1 in self.chimera_adj:
for qb2 in self.chimera_adj[qb1]:
l1 = tuple_to_linear(qb1, self.M, self.N, L=self.L, index0=True)
l2 = tuple_to_linear(qb2, self.M, self.N, L=self.L, index0=True)
A.add((l1, l2))
try:
print 'Running heuristic embedding'
models = find_embedding(S, S_size, A, A_size)
except Exception as e:
print(e.message())
print 'Embedding finished'
self.good = len(models) == S_size
# map models to standard format
mapper = lambda ind: linear_to_tuple(ind, self.M, self.N,
L=self.L, index0=True)
self.models = {active_cells[i]: [mapper(c) for c in models[i]]
for i in xrange(S_size)}
def load_coefs(self, fname):
'''Load and set a coef file in the current chimera structure'''
try:
fp = open(fname)
except:
print('Failed to open coef file...')
return
# purge first line, don't need the number of qubits
fp.readline()
# extract h and J coefficients
h = {}
J = {}
mapper = lambda qb: linear_to_tuple(qb, self.M, self.N, L=4)
for line in fp:
if len(line) < 3 or '#' in line:
continue
data = line.split()
qb1 = int(data[0])
qb2 = int(data[1])
val = float(data[2])
if qb1 == qb2:
h[mapper(qb1)] = val
else:
if mapper(qb1) in J:
J[mapper(qb1)][mapper(qb2)] = val
else:
J[mapper(qb1)] = {mapper(qb2): val}
fp.close()
# color chimera graph
self.color_chimera(h, J)
self.canvas.update()
def load_coefs(self, fname):
'''Load and set a coef file in the current chimera structure'''
try:
fp = open(fname)
except:
print('Failed to open coef file...')
return
# purge first line, don't need the number of qubits
fp.readline()
# extract h and J coefficients
h = {}
J = {}
mapper = lambda qb: linear_to_tuple(qb, self.M, self.N, L=4)
for line in fp:
if len(line) < 3 or '#' in line:
continue
data = line.split()
qb1 = int(data[0])
qb2 = int(data[1])
val = float(data[2])
if qb1 == qb2:
h[mapper(qb1)] = val
else:
if mapper(qb1) in J:
J[mapper(qb1)][mapper(qb2)] = val
else:
J[mapper(qb1)] = {mapper(qb2): val}
fp.close()
# color chimera graph
self.color_chimera(h, J)
self.canvas.update()
