Example #1
0
 def __init__(self, graph):
     self.graph = graph
     self.h, self.J = self.graph.get_data()
     solver = local_connection.get_solver('c4-sw_optimize')
     self.blackbox_solver = BlackBoxSolver(solver)
     self.blackbox_parameter = 1
     self.cluster_parameter = 2
Example #2
0
 def __init__(self, filename):
     self.clauses = []
     self.process_file(filename)
     solver = local_connection.get_solver('c4-sw_optimize')
     self.blackbox_solver = BlackBoxSolver(solver)
     self.blackbox_parameter = 10
     self.gamma = 99999
Example #3
0
class QNand(object):
    def __init__(self):
        solver = local_connection.get_solver('c4-sw_optimize')
        self.blackbox_solver = BlackBoxSolver(solver)
        self.evaluator = NANDEvaluator()
        self.blackbox_parameter = 10

    def compute(self, x, y):
        # map 0/1 to qubit values +/-1
        self.evaluator.x = x * 2 - 1
        self.evaluator.y = y * 2 - 1
        blackbox_answer = self.blackbox_solver.solve(
            self.evaluator,
            3,
            cluster_num=10,
            min_iter_inner=self.blackbox_parameter,
            max_iter_outer=self.blackbox_parameter,
            unchanged_threshold=self.blackbox_parameter,
            max_unchanged_objective_outer=self.blackbox_parameter,
            max_unchanged_objective_inner=self.blackbox_parameter,
            unchanged_best_threshold=self.blackbox_parameter,
            verbose=0)

        # rebuild 0/1 booleans [a,b,h] from [x,y,g]
        blackbox_answer_bin = [(item + 1) / 2 for item in blackbox_answer]
        # the answer we desire is the third value in the list [a,b,h]
        return blackbox_answer_bin[2]
Example #4
0
class SATSolver(object):
    def __init__(self, filename):
        self.clauses = []
        self.process_file(filename)
        solver = local_connection.get_solver('c4-sw_optimize')
        self.blackbox_solver = BlackBoxSolver(solver)
        self.blackbox_parameter = 10
        self.gamma = 99999

    def process_file(self, filename):
        file = open(filename, 'r')
        # retain the clauses as lists of pairs (var_index, value=+/-1)
        for line in file:
            tokens = line.split()
            self.clauses.append([(int(tokens[2 * i]), int(tokens[2 * i + 1]))
                                 for i in range(len(tokens) / 2)])
        file.close()
        # determine the number of variables in our list as the largest var index
        self.nvars = 0
        for clause in self.clauses:
            for pair in clause:
                if pair[0] > self.nvars:
                    self.nvars = pair[0]
        self.nvars += 1

    def __call__(self, states, num_states):
        ret = []
        for i in range(num_states):
            # retrieve a candidate solution
            state = states[i * self.nvars:(i + 1) * self.nvars]
            # the product of (x_i + x_i+)
            sat_value = 1
            # each clause is a list of (index, x_index+) pairs
            for clause in self.clauses:
                clause_sum = 0
                # each pair contributes to the satisfiability measure
                for pair in clause:
                    # pair[1] = x_index+, state[pair[0]] = state[index] = x_index
                    clause_sum += (state[pair[0]] + pair[1])**2
                sat_value *= clause_sum
            # final objective value
            ret.append(self.gamma - sat_value)
        return tuple(ret)

    def solve(self):
        blackbox_answer = self.blackbox_solver.solve(
            self,
            self.nvars,
            cluster_num=10,
            min_iter_inner=self.blackbox_parameter,
            max_iter_outer=self.blackbox_parameter,
            unchanged_threshold=self.blackbox_parameter,
            max_unchanged_objective_outer=self.blackbox_parameter,
            max_unchanged_objective_inner=self.blackbox_parameter,
            unchanged_best_threshold=self.blackbox_parameter,
            verbose=0)
        energy = self.__call__(blackbox_answer, 1)[0]

        return (energy != self.gamma), blackbox_answer
Example #5
0
    def solve(self):
        solver = local_connection.get_solver('c4-sw_optimize')
        blackbox_parameter = 10

        blackbox_solver = BlackBoxSolver(solver)
        if debug:
            print 'contacting super black box...'

        blackbox_answer = blackbox_solver.solve(self, 2 * SIZE, cluster_num = 10, \
            min_iter_inner = blackbox_parameter, max_iter_outer= blackbox_parameter, \
            unchanged_threshold=blackbox_parameter, max_unchanged_objective_outer=blackbox_parameter, \
            max_unchanged_objective_inner = blackbox_parameter, \
            unchanged_best_threshold = blackbox_parameter, verbose=0)

        blackbox_answer_bin = array([(item + 1) / 2
                                     for item in blackbox_answer])
        a, b = (binaryToInt(blackbox_answer[0:SIZE]),
                binaryToInt(blackbox_answer[SIZE:]))

        if debug:
            print 'The best bit string we found was:', blackbox_answer_bin
            print 'the factors are ', a, ' and ', b

        return (a, b)
Example #6
0
class WMISIsingSolver(object):
    def __init__(self, graph):
        self.graph = graph
        self.h, self.J = self.graph.get_data()
        solver = local_connection.get_solver('c4-sw_optimize')
        self.blackbox_solver = BlackBoxSolver(solver)
        self.blackbox_parameter = 1
        self.cluster_parameter = 2

    def __call__(self, states, num_states):
        ret = []
        state_len = len(states) / num_states
        for i in range(num_states):
            state = states[i * state_len:(i + 1) * state_len]
            # this is the objective function value
            obj_value = dot(self.h, state) + dot(state, dot(self.J, state))
            ret.append(obj_value)
        return tuple(ret)

    def compute(self):
        blackbox_answer = self.blackbox_solver.solve(
            self,
            self.graph.nnodes,
            cluster_num=self.cluster_parameter,
            min_iter_inner=self.blackbox_parameter,
            max_iter_outer=self.blackbox_parameter,
            unchanged_threshold=self.blackbox_parameter,
            max_unchanged_objective_outer=self.blackbox_parameter,
            max_unchanged_objective_inner=self.blackbox_parameter,
            unchanged_best_threshold=self.blackbox_parameter,
            verbose=0)
        selected_nodes = filter(lambda node: blackbox_answer[node.index] == 1,
                                self.graph.nodes)
        total_weight = reduce(lambda x, node: x + node.weight, selected_nodes,
                              0)

        return selected_nodes, total_weight
Example #7
0
#Here we create the tiles. We only need to do this once.
for i in range(len(tile_list)):
    build_a_piece(tile_list[i], i, tile_list_string)

row_map = compute_row_map(n)
valid_edges = compute_valid_edges(n, row_map)

#This code allows you to test the visualization routine with a "fake" bitstring
#mismatches = calculate_mismatches(test_bitstring, tile_list, valid_edges, n)
#visualize_board(test_bitstring, tile_list_string, n)

#Now we use Blackbox solver to provide the bitstring definition.
mismatch_function = MismatchFunction(tile_list, valid_edges, n)

blackbox_solver = BlackBoxSolver(solver)
blackbox_answer = blackbox_solver.solve(mismatch_function, num_vars, cluster_num = 2, \
                                        min_iter_inner = blackbox_parameter, \
                                        max_iter_outer= blackbox_parameter, \
                                        unchanged_threshold=blackbox_parameter, \
                                        max_unchanged_objective_outer=blackbox_parameter, \
                                        max_unchanged_objective_inner = blackbox_parameter, \
                                        unchanged_best_threshold = blackbox_parameter, verbose=1)
print blackbox_answer
blackbox_answer_bin = [(item + 1) / 2 for item in blackbox_answer
                       ]  # converting to 0/1 from -1/+1

print "The best bit string we found was:", blackbox_answer_bin
print "The number of mismatches is:", calculate_mismatches(
    blackbox_answer_bin, tile_list, valid_edges, n)
print "The number of bad tiles is:", calculate_bad_tile_choice(
Example #8
0
    def convert_answer(self, bb_answer):
        bin = [(x + 1) / 2 for x in bb_answer]
        theta0 = self.as_float32(bin[:32])
        theta1 = self.as_float32(bin[32:64])
        theta2 = self.as_float32(bin[64:96])
        theta3 = self.as_float32(bin[96:128])
        # theta4 = self.as_float32(bin[128:])
        return [theta0, theta1, theta2, theta3]


solver = local_connection.get_solver('c4-sw_optimize')
blackbox_parameter = 10

obj = QuantumLR("data.txt")

blackbox_solver = BlackBoxSolver(solver)
print 'contacting super black box...'

blackbox_answer = blackbox_solver.solve(obj, obj.stateLen)

print blackbox_answer
theta = obj.convert_answer(blackbox_answer)
print theta
print obj.totalCost(theta)

r = arange(0, 100, 1)

x = linspace(30, 100, 100)
y = linspace(30, 100, 100)
X, Y = meshgrid(x, y)
F = -1.121 + 3.0517576306010596e-05 * X + 0.00390625 * Y + 0.00024414061044808477 * X * Y
Example #9
0
            else:
                # the total length of included edges
                evaluation = dot(edge_lengths, w)
                # vertices must be present in the selected edge list exactly twice
                # penalize any non-conforming paths
                for line in self.index_matrix:
                    evaluation += (self.gamma * (dot(line, w) - 2))**2
                # penalize any path longer or shorter than exactly one complete tour
                evaluation += (self.gamma * (path_length - self.npoints))**2
            ret.append(evaluation)

        return tuple(ret)


solver = local_connection.get_solver('c4-sw_optimize')
blackbox_solver = BlackBoxSolver(solver)

evaluator = TSPEvaluator('simple_tsp.in')
print 'The points on the map:'
for point in evaluator.points:
    print point

print 'Calling Blackbox...'
blackbox_parameter = 10
blackbox_answer = blackbox_solver.solve(evaluator,\
                                        len(evaluator.edges),\
                                        cluster_num = 10,\
                                        min_iter_inner = blackbox_parameter,\
                                        max_iter_outer = blackbox_parameter,\
                                        unchanged_threshold = blackbox_parameter,\
                                        max_unchanged_objective_outer = blackbox_parameter,\
Example #10
0
 def __init__(self):
     solver = local_connection.get_solver('c4-sw_optimize')
     self.blackbox_solver = BlackBoxSolver(solver)
     self.evaluator = NANDEvaluator()
     self.blackbox_parameter = 10
#Here we create the tiles. We only need to do this once.
for i in range(len(tile_list)):
    build_a_piece(tile_list[i], i, tile_list_string)

row_map = compute_row_map(n)
valid_edges = compute_valid_edges(n, row_map)

#This code allows you to test the visualization routine with a "fake" bitstring
#mismatches = calculate_mismatches(test_bitstring, tile_list, valid_edges, n)
#visualize_board(test_bitstring, tile_list_string, n)

#Now we use Blackbox solver to provide the bitstring definition.
mismatch_function = MismatchFunction(tile_list, valid_edges, n)

blackbox_solver = BlackBoxSolver(solver)
blackbox_answer = blackbox_solver.solve(mismatch_function, num_vars, cluster_num = 2, \
                                        min_iter_inner = blackbox_parameter, \
                                        max_iter_outer= blackbox_parameter, \
                                        unchanged_threshold=blackbox_parameter, \
                                        max_unchanged_objective_outer=blackbox_parameter, \
                                        max_unchanged_objective_inner = blackbox_parameter, \
                                        unchanged_best_threshold = blackbox_parameter, verbose=1)
print blackbox_answer
blackbox_answer_bin = [(item+1)/2 for item in blackbox_answer] # converting to 0/1 from -1/+1

print "The best bit string we found was:",blackbox_answer_bin
print "The number of mismatches is:", calculate_mismatches(blackbox_answer_bin, tile_list, valid_edges, n)
print "The number of bad tiles is:", calculate_bad_tile_choice(blackbox_answer_bin, n, verbose=0)/3
print "The number of bad corners is:", calculate_bad_corner_choice(blackbox_answer_bin)/5
print "The number of bad edges is:", calculate_bad_edge_choice(blackbox_answer_bin)/4
Example #12
0
            result = result + self.bignum * superprod

            ret.append(result)

        return tuple(ret)


# additional methods if necessary
# ...
# in the main part of the program

superset = [-7, 4, 2, 5, -8, 0, 1]
num_vars = len(superset)

solver = local_connection.get_solver('c4-sw_optimize')
blackbox_solver = BlackBoxSolver(solver)
# initialize variables and all other necessary values
# ...

obj = MyEvaluatorObject(superset, -1)

blackbox_parameter = 10
blackbox_answer = blackbox_solver.solve (obj , num_vars , \
    cluster_num = 10, \
    min_iter_inner = blackbox_parameter , \
    max_iter_outer = blackbox_parameter , \
    unchanged_threshold = blackbox_parameter ,\
    max_unchanged_objective_outer = blackbox_parameter , \
    max_unchanged_objective_inner = blackbox_parameter , \
    unchanged_best_threshold = 5,\
    verbose =0)