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Copy pathgraph_builder_small.py
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258 lines (232 loc) · 10.3 KB
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from qiskit import *
import networkx as nx
import config
from collections import defaultdict
def MeasureF():
measures = [None] * config.qc.num_qubits
new_data = []
for item in config.qc.data[::-1]:
if item[0].name == "measure":
measures[item[1][0].index] = item
elif item[0].name in ['ccx', 'mcx', 'x', 'cx', 'mcx_gray']:
can_move_target = True
for ctrl_qubit in item[1][:-1]:
if measures[ctrl_qubit.index] == None:
can_move_target = False
if not can_move_target:
if measures[item[1][-1].index] != None:
new_data.append(measures[item[1][-1].index])
measures[item[1][-1].index] = None
elif item[0].name in ['rzz', 'cp', 'cz', 'rz', 'p', 's', 'sdg', 't', 'tdg']:
pass
elif item[0].name in ['swap']:
if measures[item[1][0].index] == None or measures[item[1][1].index] == None:
for qubit in item[1]:
if measures[qubit.index] != None:
new_data.append(measures[qubit.index])
measures[qubit.index] = None
else:
for qubit in item[1]:
if measures[qubit.index] != None:
new_data.append(measures[qubit.index])
measures[qubit.index] = None
new_data.append(item)
for item in measures:
if item != None:
new_data.append(item)
config.qc.data = new_data[::-1]
def Commute():
com_set1 = ["x", "y", "z"]
com_set2 = ["z", "rz", "s", "t", "sdg", "tdg", "p", "cz", "cp", "rzz"]
com_set3 = ["x", "rx", "sx"]
com_set4 = ["y", "ry"]
gateNum = 0
measureNum = 0
config.gate = []
config.measure = []
config.qubit_for_g = {}
config.measure_to_index = {} # measure index to qubit index
if config.mode == "reorder" or config.mode == "all":
for i in range(config.totalNum):
if config.qc.data[i][0].name != "measure":
config.gate.append(i)
config.qubit_for_g[i] = [qubit.index for qubit in config.qc.data[i][1]]
gateNum += 1
else:
measureNum += 1
config.qubit_for_g[i] = [qubit.index for qubit in config.qc.data[i][1]]
config.measure.append(i)
config.measure_to_index[i] = config.qc.data[i][1][0].index
config.commute = [[None for _ in range(config.totalNum)] for _ in range(config.totalNum)] # 0 for commute, 1 for non-commute
config.paraList = [[1 for _ in range(config.totalNum)] for _ in range(config.totalNum)]
config.gate_on_q = {i: [] for i in range(config.qc.num_qubits)}
for i in range(config.totalNum):
qubit = config.qc.data[i][1]
for q in qubit:
config.gate_on_q[q.index].append(i)
for j in range(i, config.totalNum):
if i == j:
config.commute[i][j] = 0
else:
gi = [qubit.index for qubit in config.qc.data[i][1]]
gj = [qubit.index for qubit in config.qc.data[j][1]]
lenA = len(gi)
lenB = len(gj)
ni = config.qc.data[i][0].name
nj = config.qc.data[j][0].name
# parallel
parallel = True
for loci in gi:
for locj in gj:
if loci == locj:
parallel = False
break
if not parallel:
break
if parallel:
config.commute[i][j] = 0
config.paraList[i][j] = 0
continue
# commuting group
if ni in com_set1 and nj in com_set1:
config.commute[i][j] = 0
continue
elif ni in com_set2 and nj in com_set2:
config.commute[i][j] = 0
continue
elif ni in com_set3 and nj in com_set3:
config.commute[i][j] = 0
continue
elif ni in com_set4 and nj in com_set4:
config.commute[i][j] = 0
continue
# x, cx, ccx, mcx, rx, sx
x_series = ["x", "cx", "ccx", "mcx", "rx", "sx"]
if ni in x_series and nj in x_series:
if (gi[-1] not in gj[:-1]) and (gj[-1] not in gi[:-1]):
config.commute[i][j] = 0
continue
# z-rotation on controls
if nj in com_set2 and ni in x_series:
(gi, gj, lenA, lenB, ni, nj) = (gj, gi, lenB, lenA, nj, ni)
if ni in com_set2 and nj in x_series:
if gj[-1] not in gi:
config.commute[i][j] = 0
continue
# only control qubits overlapping
contolled_gates = ["cx", "ccx", "mcx", "cz", "cp"]
if ni in contolled_gates and nj in contolled_gates:
if ni[-1] != nj[-1]:
config.commute[i][j] = 0
continue
config.commute[i][j] = 1
elif config.mode == "none" or config.mode == "eager":
for i in range(config.totalNum):
if config.qc.data[i][0].name != "measure":
config.gate.append(i)
config.qubit_for_g[i] = [qubit.index for qubit in config.qc.data[i][1]]
gateNum += 1
else:
measureNum += 1
config.qubit_for_g[i] = [qubit.index for qubit in config.qc.data[i][1]]
config.measure.append(i)
config.measure_to_index[i] = config.qc.data[i][1][0].index
config.commute = [[None for _ in range(config.totalNum)] for _ in range(config.totalNum)] # 0 for commute, 1 for non-commute
config.gate_on_q = {i: [] for i in range(config.qc.num_qubits)}
for i in range(config.totalNum):
qubit = config.qc.data[i][1]
for q in qubit:
config.gate_on_q[q.index].append(i)
for j in range(i, config.totalNum):
if i == j:
config.commute[i][j] = 0
else:
gi = [qubit.index for qubit in config.qc.data[i][1]]
gj = [qubit.index for qubit in config.qc.data[j][1]]
lenA = len(gi)
lenB = len(gj)
ni = config.qc.data[i][0].name
nj = config.qc.data[j][0].name
# parallel
parallel = True
for loci in gi:
for locj in gj:
if loci == locj:
parallel = False
break
if not parallel:
break
if parallel:
config.commute[i][j] = 0
continue
config.commute[i][j] = 1
def BuildCanon():
G = nx.DiGraph()
pa_pair = []
# canonical form
for j in range(config.totalNum):
for k in range(j):
G.nodes[k]['isReachable'] = True
G.nodes[k]['control'] = False # control qubit before measurement
G.nodes[k]['target'] = False # target qubit before measurement
if config.qc.data[j][0].name == "measure":
G.add_node(j, isReachable = True, M = True, name = config.qc.data[j][0].name)
else:
G.add_node(j, isReachable = True, M = False, name = config.qc.data[j][0].name)
for i in range(j - 1, -1, -1):
if not G.nodes[i]['isReachable']:
for pred in G.predecessors(i):
G.nodes[pred]['isReachable'] = False
if G.nodes[i]['isReachable'] and config.commute[i][j] == 0 and (config.mode == "reorder" or config.mode == "all"):
if config.paraList[i][j] == 1:
pa_pair.append((i, j))
if G.nodes[i]['isReachable'] and config.commute[i][j] != 0:
G.add_edge(i, j)
for pred in G.predecessors(i):
G.nodes[pred]['isReachable'] = False
tmp_pair = set(tuple(sorted(pair)) for pair in pa_pair)
solver_pair = list(tmp_pair)
return G, solver_pair
def DeleteOne(G):
config.single_qubit = []
for i in config.gate:
l = len(config.qc.data[i][1])
if l == 1:
pre = list(G.predecessors(i))
suc = list(G.successors(i))
if len(pre) == 0:
for s in suc:
G.remove_edge(i, s)
elif len(suc) == 0:
for p in pre:
G.remove_edge(p, i)
else:
for s in suc:
G.remove_edge(i, s)
for p in pre:
G.remove_edge(p, i)
for s in suc:
G.add_edge(p, s)
G.remove_node(i)
config.single_qubit.append(i)
return G
def PotentialPair(G):
pair = defaultdict(list)
for i in range(config.qc.num_qubits):
if i in config.used:
pair[i] = []
else:
pair[i] = [j for j in range(config.qc.num_qubits)
if j != i and j not in config.a.values()]
for i in config.measure:
if i not in G:
continue
q = config.measure_to_index[i]
anc = nx.ancestors(G, i)
related_qubits = set()
for a in anc:
related_qubits.update(config.qubit_for_g[a])
for k in related_qubits:
if k in pair[q]:
pair[q].remove(k)
return pair