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def _insert_new_layers(self, new_layers, start_node_id, end_node_id): """Insert the new_layers after the node with start_node_id.""" new_node_id = self._add_node(deepcopy(self.node_list[end_node_id])) temp_output_id = new_node_id for layer in new_layers[:-1]: temp_output_id =...
def to_add_skip_model(self, start_id, end_id): """Add a weighted add skip-connection from after start node to end node. Args: start_id: The convolutional layer ID, after which to start the skip-connection. end_id: The convolutional layer ID, after which to end the skip-connection...
def to_concat_skip_model(self, start_id, end_id): """Add a weighted add concatenate connection from after start node to end node. Args: start_id: The convolutional layer ID, after which to start the skip-connection. end_id: The convolutional layer ID, after which to end the skip-...
def extract_descriptor(self): """Extract the the description of the Graph as an instance of NetworkDescriptor.""" main_chain = self.get_main_chain() index_in_main_chain = {} for index, u in enumerate(main_chain): index_in_main_chain[u] = index ret = NetworkDescriptor...
def clear_weights(self): ''' clear weights of the graph ''' self.weighted = False for layer in self.layer_list: layer.weights = None
def get_main_chain_layers(self): """Return a list of layer IDs in the main chain.""" main_chain = self.get_main_chain() ret = [] for u in main_chain: for v, layer_id in self.adj_list[u]: if v in main_chain and u in main_chain: ret.append(la...
def get_main_chain(self): """Returns the main chain node ID list.""" pre_node = {} distance = {} for i in range(self.n_nodes): distance[i] = 0 pre_node[i] = i for i in range(self.n_nodes - 1): for u in range(self.n_nodes): for v...
def run(self): """Run the tuner. This function will never return unless raise. """ _logger.info('Start dispatcher') if dispatcher_env_vars.NNI_MODE == 'resume': self.load_checkpoint() while True: command, data = receive() if data: ...
def command_queue_worker(self, command_queue): """Process commands in command queues. """ while True: try: # set timeout to ensure self.stopping is checked periodically command, data = command_queue.get(timeout=3) try: ...
def enqueue_command(self, command, data): """Enqueue command into command queues """ if command == CommandType.TrialEnd or (command == CommandType.ReportMetricData and data['type'] == 'PERIODICAL'): self.assessor_command_queue.put((command, data)) else: self.defau...
def process_command_thread(self, request): """Worker thread to process a command. """ command, data = request if multi_thread_enabled(): try: self.process_command(command, data) except Exception as e: _logger.exception(str(e)) ...
def match_val_type(vals, vals_bounds, vals_types): ''' Update values in the array, to match their corresponding type ''' vals_new = [] for i, _ in enumerate(vals_types): if vals_types[i] == "discrete_int": # Find the closest integer in the array, vals_bounds vals_new...
def rand(x_bounds, x_types): ''' Random generate variable value within their bounds ''' outputs = [] for i, _ in enumerate(x_bounds): if x_types[i] == "discrete_int": temp = x_bounds[i][random.randint(0, len(x_bounds[i]) - 1)] outputs.append(temp) elif x_type...
def to_wider_graph(graph): ''' wider graph ''' weighted_layer_ids = graph.wide_layer_ids() weighted_layer_ids = list( filter(lambda x: graph.layer_list[x].output.shape[-1], weighted_layer_ids) ) wider_layers = sample(weighted_layer_ids, 1) for layer_id in wider_layers: layer...
def to_skip_connection_graph(graph): ''' skip connection graph ''' # The last conv layer cannot be widen since wider operator cannot be done over the two sides of flatten. weighted_layer_ids = graph.skip_connection_layer_ids() valid_connection = [] for skip_type in sorted([NetworkDescriptor.ADD_...
def create_new_layer(layer, n_dim): ''' create new layer for the graph ''' input_shape = layer.output.shape dense_deeper_classes = [StubDense, get_dropout_class(n_dim), StubReLU] conv_deeper_classes = [get_conv_class(n_dim), get_batch_norm_class(n_dim), StubReLU] if is_layer(layer, "ReLU"): ...
def to_deeper_graph(graph): ''' deeper graph ''' weighted_layer_ids = graph.deep_layer_ids() if len(weighted_layer_ids) >= Constant.MAX_LAYERS: return None deeper_layer_ids = sample(weighted_layer_ids, 1) for layer_id in deeper_layer_ids: layer = graph.layer_list[layer_id] ...
def legal_graph(graph): '''judge if a graph is legal or not. ''' descriptor = graph.extract_descriptor() skips = descriptor.skip_connections if len(skips) != len(set(skips)): return False return True
def transform(graph): '''core transform function for graph. ''' graphs = [] for _ in range(Constant.N_NEIGHBOURS * 2): random_num = randrange(3) temp_graph = None if random_num == 0: temp_graph = to_deeper_graph(deepcopy(graph)) elif random_num == 1: ...
def uniform(low, high, random_state): ''' low: an float that represent an lower bound high: an float that represent an upper bound random_state: an object of numpy.random.RandomState ''' assert high > low, 'Upper bound must be larger than lower bound' return random_state.uniform(low, high)
def quniform(low, high, q, random_state): ''' low: an float that represent an lower bound high: an float that represent an upper bound q: sample step random_state: an object of numpy.random.RandomState ''' return np.round(uniform(low, high, random_state) / q) * q
def loguniform(low, high, random_state): ''' low: an float that represent an lower bound high: an float that represent an upper bound random_state: an object of numpy.random.RandomState ''' assert low > 0, 'Lower bound must be positive' return np.exp(uniform(np.log(low), np.log(high), random...
def qloguniform(low, high, q, random_state): ''' low: an float that represent an lower bound high: an float that represent an upper bound q: sample step random_state: an object of numpy.random.RandomState ''' return np.round(loguniform(low, high, random_state) / q) * q
def qnormal(mu, sigma, q, random_state): ''' mu: float or array_like of floats sigma: float or array_like of floats q: sample step random_state: an object of numpy.random.RandomState ''' return np.round(normal(mu, sigma, random_state) / q) * q
def lognormal(mu, sigma, random_state): ''' mu: float or array_like of floats sigma: float or array_like of floats random_state: an object of numpy.random.RandomState ''' return np.exp(normal(mu, sigma, random_state))
def qlognormal(mu, sigma, q, random_state): ''' mu: float or array_like of floats sigma: float or array_like of floats q: sample step random_state: an object of numpy.random.RandomState ''' return np.round(lognormal(mu, sigma, random_state) / q) * q
def predict(parameters_value, regressor_gp): ''' Predict by Gaussian Process Model ''' parameters_value = numpy.array(parameters_value).reshape(-1, len(parameters_value)) mu, sigma = regressor_gp.predict(parameters_value, return_std=True) return mu[0], sigma[0]
def rest_get(url, timeout): '''Call rest get method''' try: response = requests.get(url, timeout=timeout) return response except Exception as e: print('Get exception {0} when sending http get to url {1}'.format(str(e), url)) return None
def rest_post(url, data, timeout, rethrow_exception=False): '''Call rest post method''' try: response = requests.post(url, headers={'Accept': 'application/json', 'Content-Type': 'application/json'},\ data=data, timeout=timeout) return response except Exceptio...
def rest_put(url, data, timeout): '''Call rest put method''' try: response = requests.put(url, headers={'Accept': 'application/json', 'Content-Type': 'application/json'},\ data=data, timeout=timeout) return response except Exception as e: print('Get ex...
def rest_delete(url, timeout): '''Call rest delete method''' try: response = requests.delete(url, timeout=timeout) return response except Exception as e: print('Get exception {0} when sending http delete to url {1}'.format(str(e), url)) return None
def trial_end(self, trial_job_id, success): """update the best performance of completed trial job Parameters ---------- trial_job_id: int trial job id success: bool True if succssfully finish the experiment, False otherwise """ if ...
def assess_trial(self, trial_job_id, trial_history): """assess whether a trial should be early stop by curve fitting algorithm Parameters ---------- trial_job_id: int trial job id trial_history: list The history performance matrix of each trial R...
def handle_initialize(self, data): ''' data is search space ''' self.tuner.update_search_space(data) send(CommandType.Initialized, '') return True
def generate_parameters(self, parameter_id): """ Returns a set of trial neural architecture, as a serializable object. Parameters ---------- parameter_id : int """ if not self.history: self.init_search() new_father_id = None generated...
def receive_trial_result(self, parameter_id, parameters, value): """ Record an observation of the objective function. Parameters ---------- parameter_id : int parameters : dict value : dict/float if value is dict, it should have "default" key. """...
def init_search(self): """Call the generators to generate the initial architectures for the search.""" if self.verbose: logger.info("Initializing search.") for generator in self.generators: graph = generator(self.n_classes, self.input_shape).generate( self...
def generate(self): """Generate the next neural architecture. Returns ------- other_info: any object Anything to be saved in the training queue together with the architecture. generated_graph: Graph An instance of Graph. """ generated_grap...
def update(self, other_info, graph, metric_value, model_id): """ Update the controller with evaluation result of a neural architecture. Parameters ---------- other_info: any object In our case it is the father ID in the search tree. graph: Graph An instan...
def add_model(self, metric_value, model_id): """ Add model to the history, x_queue and y_queue Parameters ---------- metric_value : float graph : dict model_id : int Returns ------- model : dict """ if self.verbose: lo...
def get_best_model_id(self): """ Get the best model_id from history using the metric value """ if self.optimize_mode is OptimizeMode.Maximize: return max(self.history, key=lambda x: x["metric_value"])["model_id"] return min(self.history, key=lambda x: x["metric_value"])["mod...
def load_model_by_id(self, model_id): """Get the model by model_id Parameters ---------- model_id : int model index Returns ------- load_model : Graph the model graph representation """ with open(os.path.join(self...
def _rand_init(x_bounds, x_types, selection_num_starting_points): ''' Random sample some init seed within bounds. ''' return [lib_data.rand(x_bounds, x_types) for i \ in range(0, selection_num_starting_points)]
def get_median(temp_list): """Return median """ num = len(temp_list) temp_list.sort() print(temp_list) if num % 2 == 0: median = (temp_list[int(num/2)] + temp_list[int(num/2) - 1]) / 2 else: median = temp_list[int(num/2)] return median
def update_search_space(self, search_space): """Update the self.x_bounds and self.x_types by the search_space.json Parameters ---------- search_space : dict """ self.x_bounds = [[] for i in range(len(search_space))] self.x_types = [NONE_TYPE for i in range(len(se...
def _pack_output(self, init_parameter): """Pack the output Parameters ---------- init_parameter : dict Returns ------- output : dict """ output = {} for i, param in enumerate(init_parameter): output[self.key_order[i]] = param ...
def generate_parameters(self, parameter_id): """Generate next parameter for trial If the number of trial result is lower than cold start number, metis will first random generate some parameters. Otherwise, metis will choose the parameters by the Gussian Process Model and the Gussian Mixt...
def receive_trial_result(self, parameter_id, parameters, value): """Tuner receive result from trial. Parameters ---------- parameter_id : int parameters : dict value : dict/float if value is dict, it should have "default" key. """ value = extr...
def import_data(self, data): """Import additional data for tuning Parameters ---------- data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value' """ _completed_num = 0 for trial_info in data: logger.info("Im...
def create_model(samples_x, samples_y_aggregation, n_restarts_optimizer=250, is_white_kernel=False): ''' Trains GP regression model ''' kernel = gp.kernels.ConstantKernel(constant_value=1, constant_value_bounds=(1e-12, 1e12)) * \ ...
def json2paramater(self, ss_spec): ''' generate all possible configs for hyperparameters from hyperparameter space. ss_spec: hyperparameter space ''' if isinstance(ss_spec, dict): if '_type' in ss_spec.keys(): _type = ss_spec['_type'] _...
def _parse_quniform(self, param_value): '''parse type of quniform parameter and return a list''' if param_value[2] < 2: raise RuntimeError("The number of values sampled (q) should be at least 2") low, high, count = param_value[0], param_value[1], param_value[2] interval = (hi...
def parse_qtype(self, param_type, param_value): '''parse type of quniform or qloguniform''' if param_type == 'quniform': return self._parse_quniform(param_value) if param_type == 'qloguniform': param_value[:2] = np.log(param_value[:2]) return list(np.exp(self....
def expand_parameters(self, para): ''' Enumerate all possible combinations of all parameters para: {key1: [v11, v12, ...], key2: [v21, v22, ...], ...} return: {{key1: v11, key2: v21, ...}, {key1: v11, key2: v22, ...}, ...} ''' if len(para) == 1: for key, value...
def import_data(self, data): """Import additional data for tuning Parameters ---------- data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value' """ _completed_num = 0 for trial_info in data: logger.info("I...
def nni_log(log_type, log_message): '''Log message into stdout''' dt = datetime.now() print('[{0}] {1} {2}'.format(dt, log_type.value, log_message))
def write(self, buf): ''' Write buffer data into logger/stdout ''' for line in buf.rstrip().splitlines(): self.orig_stdout.write(line.rstrip() + '\n') self.orig_stdout.flush() try: self.logger.log(self.log_level, line.rstrip()) ...
def run(self): """Run the thread, logging everything. If the log_collection is 'none', the log content will not be enqueued """ for line in iter(self.pipeReader.readline, ''): self.orig_stdout.write(line.rstrip() + '\n') self.orig_stdout.flush() if ...
def extract_scalar_reward(value, scalar_key='default'): """ Extract scalar reward from trial result. Raises ------ RuntimeError Incorrect final result: the final result should be float/int, or a dict which has a key named "default" whose value is float/int. """ if isinstance...
def convert_dict2tuple(value): """ convert dict type to tuple to solve unhashable problem. """ if isinstance(value, dict): for _keys in value: value[_keys] = convert_dict2tuple(value[_keys]) return tuple(sorted(value.items())) else: return value
def init_dispatcher_logger(): """ Initialize dispatcher logging configuration""" logger_file_path = 'dispatcher.log' if dispatcher_env_vars.NNI_LOG_DIRECTORY is not None: logger_file_path = os.path.join(dispatcher_env_vars.NNI_LOG_DIRECTORY, logger_file_path) init_logger(logger_file_path, dispat...
def sample_from_largest_budget(self, info_dict): """We opted for a single multidimensional KDE compared to the hierarchy of one-dimensional KDEs used in TPE. The dimensional is seperated by budget. This function sample a configuration from largest budget. Firstly we sample "num_samples" ...
def get_config(self, budget): """Function to sample a new configuration This function is called inside BOHB to query a new configuration Parameters: ----------- budget: float the budget for which this configuration is scheduled Returns ------- ...
def new_result(self, loss, budget, parameters, update_model=True): """ Function to register finished runs. Every time a run has finished, this function should be called to register it with the loss. Parameters: ----------- loss: float the loss of the paramete...
def is_valid(self, search_space): """ Check the search space is valid: only contains 'choice' type Parameters ---------- search_space : dict """ if not len(search_space) == 1: raise RuntimeError('BatchTuner only supprt one combined-paramreters...
def generate_parameters(self, parameter_id): """Returns a dict of trial (hyper-)parameters, as a serializable object. Parameters ---------- parameter_id : int """ self.count +=1 if self.count>len(self.values)-1: raise nni.NoMoreTrialError('no more par...
def normalize(inputs, epsilon=1e-8, scope="ln"): '''Applies layer normalization. Args: inputs: A tensor with 2 or more dimensions, where the first dimension has `batch_size`. epsilon: A floating number. A very small number for preventing ZeroDivision Error. ...
def multihead_attention(queries, keys, scope="multihead_attention", num_units=None, num_heads=4, dropout_rate=0, is_training=True, causality=False): ...
def positional_encoding(inputs, num_units=None, zero_pad=True, scale=True, scope="positional_encoding", reuse=None): ''' Return positinal embedding. ''' Shape = tf.shape(inputs) N ...
def feedforward(inputs, num_units, scope="multihead_attention"): '''Point-wise feed forward net. Args: inputs: A 3d tensor with shape of [N, T, C]. num_units: A list of two integers. scope: Optional scope for `variable_scope`. reuse: Boolean, whether to r...
def generate(module_name, code): """Generate search space. Return a serializable search space object. module_name: name of the module (str) code: user code (str) """ try: ast_tree = ast.parse(code) except Exception: raise RuntimeError('Bad Python code') visitor = SearchS...
def rest_put(url, data, timeout, show_error=False): '''Call rest put method''' try: response = requests.put(url, headers={'Accept': 'application/json', 'Content-Type': 'application/json'},\ data=data, timeout=timeout) return response except Exception as except...
def rest_post(url, data, timeout, show_error=False): '''Call rest post method''' try: response = requests.post(url, headers={'Accept': 'application/json', 'Content-Type': 'application/json'},\ data=data, timeout=timeout) return response except Exception as ex...
def rest_get(url, timeout, show_error=False): '''Call rest get method''' try: response = requests.get(url, timeout=timeout) return response except Exception as exception: if show_error: print_error(exception) return None
def rest_delete(url, timeout, show_error=False): '''Call rest delete method''' try: response = requests.delete(url, timeout=timeout) return response except Exception as exception: if show_error: print_error(exception) return None
def check_rest_server(rest_port): '''Check if restful server is ready''' retry_count = 5 for _ in range(retry_count): response = rest_get(check_status_url(rest_port), REST_TIME_OUT) if response: if response.status_code == 200: return True, response els...
def check_rest_server_quick(rest_port): '''Check if restful server is ready, only check once''' response = rest_get(check_status_url(rest_port), 5) if response and response.status_code == 200: return True, response return False, None
def vap(x, a, b, c): """Vapor pressure model Parameters ---------- x: int a: float b: float c: float Returns ------- float np.exp(a+b/x+c*np.log(x)) """ return np.exp(a+b/x+c*np.log(x))
def logx_linear(x, a, b): """logx linear Parameters ---------- x: int a: float b: float Returns ------- float a * np.log(x) + b """ x = np.log(x) return a*x + b
def dr_hill_zero_background(x, theta, eta, kappa): """dr hill zero background Parameters ---------- x: int theta: float eta: float kappa: float Returns ------- float (theta* x**eta) / (kappa**eta + x**eta) """ return (theta* x**eta) / (kappa**eta + x**eta)
def log_power(x, a, b, c): """"logistic power Parameters ---------- x: int a: float b: float c: float Returns ------- float a/(1.+(x/np.exp(b))**c) """ return a/(1.+(x/np.exp(b))**c)
def pow4(x, alpha, a, b, c): """pow4 Parameters ---------- x: int alpha: float a: float b: float c: float Returns ------- float c - (a*x+b)**-alpha """ return c - (a*x+b)**-alpha
def mmf(x, alpha, beta, kappa, delta): """Morgan-Mercer-Flodin http://www.pisces-conservation.com/growthhelp/index.html?morgan_mercer_floden.htm Parameters ---------- x: int alpha: float beta: float kappa: float delta: float Returns ------- float alpha - (alpha ...
def exp4(x, c, a, b, alpha): """exp4 Parameters ---------- x: int c: float a: float b: float alpha: float Returns ------- float c - np.exp(-a*(x**alpha)+b) """ return c - np.exp(-a*(x**alpha)+b)
def weibull(x, alpha, beta, kappa, delta): """Weibull model http://www.pisces-conservation.com/growthhelp/index.html?morgan_mercer_floden.htm Parameters ---------- x: int alpha: float beta: float kappa: float delta: float Returns ------- float alpha - (alpha - b...
def janoschek(x, a, beta, k, delta): """http://www.pisces-conservation.com/growthhelp/janoschek.htm Parameters ---------- x: int a: float beta: float k: float delta: float Returns ------- float a - (a - beta) * np.exp(-k*x**delta) """ return a - (a - bet...
def parse_args(): '''Definite the arguments users need to follow and input''' parser = argparse.ArgumentParser(prog='nnictl', description='use nnictl command to control nni experiments') parser.add_argument('--version', '-v', action='store_true') parser.set_defaults(func=nni_info) # create subparse...
def get_log_path(config_file_name): '''generate stdout and stderr log path''' stdout_full_path = os.path.join(NNICTL_HOME_DIR, config_file_name, 'stdout') stderr_full_path = os.path.join(NNICTL_HOME_DIR, config_file_name, 'stderr') return stdout_full_path, stderr_full_path
def print_log_content(config_file_name): '''print log information''' stdout_full_path, stderr_full_path = get_log_path(config_file_name) print_normal(' Stdout:') print(check_output_command(stdout_full_path)) print('\n\n') print_normal(' Stderr:') print(check_output_command(stderr_full_path))
def get_nni_installation_path(): ''' Find nni lib from the following locations in order Return nni root directory if it exists ''' def try_installation_path_sequentially(*sitepackages): '''Try different installation path sequentially util nni is found. Return None if nothing is found ...
def start_rest_server(port, platform, mode, config_file_name, experiment_id=None, log_dir=None, log_level=None): '''Run nni manager process''' nni_config = Config(config_file_name) if detect_port(port): print_error('Port %s is used by another process, please reset the port!\n' \ 'You could u...
def set_trial_config(experiment_config, port, config_file_name): '''set trial configuration''' request_data = dict() request_data['trial_config'] = experiment_config['trial'] response = rest_put(cluster_metadata_url(port), json.dumps(request_data), REST_TIME_OUT) if check_response(response): ...
def set_local_config(experiment_config, port, config_file_name): '''set local configuration''' #set machine_list request_data = dict() if experiment_config.get('localConfig'): request_data['local_config'] = experiment_config['localConfig'] if request_data['local_config'] and request_data...
def set_remote_config(experiment_config, port, config_file_name): '''Call setClusterMetadata to pass trial''' #set machine_list request_data = dict() request_data['machine_list'] = experiment_config['machineList'] if request_data['machine_list']: for i in range(len(request_data['machine_list...
def setNNIManagerIp(experiment_config, port, config_file_name): '''set nniManagerIp''' if experiment_config.get('nniManagerIp') is None: return True, None ip_config_dict = dict() ip_config_dict['nni_manager_ip'] = { 'nniManagerIp' : experiment_config['nniManagerIp'] } response = rest_put(clu...
def set_frameworkcontroller_config(experiment_config, port, config_file_name): '''set kubeflow configuration''' frameworkcontroller_config_data = dict() frameworkcontroller_config_data['frameworkcontroller_config'] = experiment_config['frameworkcontrollerConfig'] response = rest_put(cluster_metadata_ur...
def set_experiment(experiment_config, mode, port, config_file_name): '''Call startExperiment (rest POST /experiment) with yaml file content''' request_data = dict() request_data['authorName'] = experiment_config['authorName'] request_data['experimentName'] = experiment_config['experimentName'] reque...
def launch_experiment(args, experiment_config, mode, config_file_name, experiment_id=None): '''follow steps to start rest server and start experiment''' nni_config = Config(config_file_name) # check packages for tuner if experiment_config.get('tuner') and experiment_config['tuner'].get('builtinTunerName...
def resume_experiment(args): '''resume an experiment''' experiment_config = Experiments() experiment_dict = experiment_config.get_all_experiments() experiment_id = None experiment_endTime = None #find the latest stopped experiment if not args.id: print_error('Please set experiment id...
def create_experiment(args): '''start a new experiment''' config_file_name = ''.join(random.sample(string.ascii_letters + string.digits, 8)) nni_config = Config(config_file_name) config_path = os.path.abspath(args.config) if not os.path.exists(config_path): print_error('Please set correct co...