# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserve. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from __future__ import absolute_import from __future__ import division from __future__ import print_function import six import numpy as np import time import os import math import paddle import paddle.fluid as fluid import paddle.fluid.core as core import paddle.fluid.framework as framework from paddle.fluid.executor import Executor import data from args import * import lm_model import logging logging.basicConfig() import pickle def prepare_batch_input(batch, args): x = batch['token_ids'] x_r = batch['token_ids_reverse'] y = batch['next_token_id'] y_r = batch['next_token_id_reverse'] inst = [] for i in range(len(x)): if args.use_custom_samples: custom_samples_array = np.zeros( (args.num_steps, args.n_negative_samples_batch + 1), dtype='int64') custom_samples_array_r = np.zeros( (args.num_steps, args.n_negative_samples_batch + 1), dtype='int64') custom_probabilities_array = np.zeros( (args.num_steps, args.n_negative_samples_batch + 1), dtype='float32') for j in range(args.num_steps): for k in range(args.n_negative_samples_batch + 1): custom_samples_array[j][k] = k custom_samples_array_r[j][k] = k custom_probabilities_array[j][k] = 1.0 custom_samples_array[j][0] = y[i][j] custom_samples_array_r[j][0] = y_r[i][j] inst.append([ x[i], y[i], x_r[i], y_r[i], custom_samples_array, custom_samples_array_r, custom_probabilities_array ]) else: inst.append([x[i], y[i], x_r[i], y_r[i]]) return inst def batch_reader(batch_list, args): res = [] for batch in batch_list: res.append(prepare_batch_input(batch, args)) return res def read_multiple(reader, batch_size, count, clip_last=True): """ Stack data from reader for multi-devices. """ def __impl__(): # one time read batch_size * count data for rnn for data in reader(): inst_num_per_part = batch_size split_data = {} len_check = True for k in data.keys(): if data[k] is not None: if len(data[k]) != batch_size * count: len_check = False print("data check error!!, data=" + data[k] + ", k=" + k) break if len_check: res = [] for i in range(count): split_data = {} for k in data.keys(): if data[k] is not None: split_data[k] = data[k][inst_num_per_part * i:inst_num_per_part * (i + 1)] res.append(split_data) yield res return __impl__ def LodTensor_Array(lod_tensor): lod = lod_tensor.lod() array = np.array(lod_tensor) new_array = [] for i in range(len(lod[0]) - 1): new_array.append(array[lod[0][i]:lod[0][i + 1]]) return new_array def get_current_model_para(train_prog, train_exe): param_list = train_prog.block(0).all_parameters() param_name_list = [p.name for p in param_list] vals = {} for p_name in param_name_list: p_array = np.array(fluid.global_scope().find_var(p_name).get_tensor()) vals[p_name] = p_array return vals def save_para_npz(train_prog, train_exe): logger.info("begin to save model to model_base") param_list = train_prog.block(0).all_parameters() param_name_list = [p.name for p in param_list] vals = {} for p_name in param_name_list: p_array = np.array(fluid.global_scope().find_var(p_name).get_tensor()) vals[p_name] = p_array emb = vals["embedding_para"] logger.info("begin to save model to model_base") np.savez("mode_base", **vals) def prepare_input(batch, epoch_id=0, with_lr=True): x, y = batch inst = [] for i in range(len(x)): inst.append([x[i], y[i]]) return inst def eval(vocab, infer_progs, dev_count, logger, args): infer_prog, infer_startup_prog, infer_model = infer_progs feed_order = infer_model.feed_order loss = infer_model.loss # prepare device place = core.CUDAPlace(0) if args.use_gpu else core.CPUPlace() exe = Executor(place) if not args.use_gpu: place = fluid.CPUPlace() import multiprocessing dev_count = int(os.environ.get('CPU_NUM', multiprocessing.cpu_count())) else: place = fluid.CUDAPlace(0) dev_count = fluid.core.get_cuda_device_count() total_loss = 0.0 total_cnt = 0 n_batch_cnt = 0 n_batch_loss = 0.0 val_feed_list = [ infer_prog.global_block().var(var_name) for var_name in feed_order ] val_feeder = fluid.DataFeeder(val_feed_list, place) dev_data = data.BidirectionalLMDataset( args.test_path, vocab, test=True, shuffle_on_load=False) dev_data_iter = lambda: dev_data.iter_batches(args.batch_size * dev_count, args.num_steps) dev_reader = read_multiple(dev_data_iter, args.batch_size, dev_count) last_hidden_values = np.zeros( (dev_count, args.num_layers * 2 * args.batch_size * args.embed_size), dtype='float32') last_cell_values = np.zeros( (dev_count, args.num_layers * 2 * args.batch_size * args.hidden_size), dtype='float32') for batch_id, batch_list in enumerate(dev_reader(), 1): feed_data = batch_reader(batch_list, args) feed = list(val_feeder.feed_parallel(feed_data, dev_count)) for i in range(dev_count): init_hidden_tensor = fluid.core.LoDTensor() if args.use_gpu: placex = fluid.CUDAPlace(i) else: placex = fluid.CPUPlace() init_hidden_tensor.set(last_hidden_values[i], placex) init_cell_tensor = fluid.core.LoDTensor() init_cell_tensor.set(last_cell_values[i], placex) feed[i]['init_hiddens'] = init_hidden_tensor feed[i]['init_cells'] = init_cell_tensor last_hidden_values = [] last_cell_values = [] for i in range(dev_count): val_fetch_outs = exe.run( program=infer_prog, feed=feed[i], fetch_list=[ infer_model.loss.name, infer_model.last_hidden.name, infer_model.last_cell.name ], return_numpy=False) last_hidden_values.append(np.array(val_fetch_outs[1])) last_cell_values.append(np.array(val_fetch_outs[2])) total_loss += np.array(val_fetch_outs[0]).sum() n_batch_cnt += len(np.array(val_fetch_outs[0])) total_cnt += len(np.array(val_fetch_outs[0])) n_batch_loss += np.array(val_fetch_outs[0]).sum() last_hidden_values = np.array(last_hidden_values).reshape(( dev_count, args.num_layers * 2 * args.batch_size * args.embed_size)) last_cell_values = np.array(last_cell_values).reshape( (dev_count, args.num_layers * 2 * args.batch_size * args.hidden_size)) log_every_n_batch = args.log_interval if log_every_n_batch > 0 and batch_id % log_every_n_batch == 0: logger.info('Average dev loss from batch {} to {} is {}'.format( batch_id - log_every_n_batch + 1, batch_id, "%.10f" % ( n_batch_loss / n_batch_cnt))) n_batch_loss = 0.0 n_batch_cnt = 0 batch_offset = 0 ppl = np.exp(total_loss / total_cnt) return ppl def train(): args = parse_args() if args.random_seed == 0: args.random_seed = None print("random seed is None") if args.enable_ce: random.seed(args.random_seed) np.random.seed(args.random_seed) logger = logging.getLogger("lm") logger.setLevel(logging.INFO) formatter = logging.Formatter( '%(asctime)s - %(name)s - %(levelname)s - %(message)s') console_handler = logging.StreamHandler() console_handler.setLevel(logging.INFO) console_handler.setFormatter(formatter) logger.info('Running with args : {}'.format(args)) logger.info('Running paddle : {}'.format(paddle.version.commit)) hidden_size = args.hidden_size batch_size = args.batch_size data_path = args.data_path logger.info("begin to load vocab") vocab = data.Vocabulary(args.vocab_path, validate_file=True) vocab_size = vocab.size logger.info("finished load vocab") logger.info('build the model...') # build model train_prog = fluid.Program() train_startup_prog = fluid.Program() if args.enable_ce: train_prog.random_seed = args.random_seed train_startup_prog.random_seed = args.random_seed # build infer model infer_prog = fluid.Program() infer_startup_prog = fluid.Program() with fluid.program_guard(infer_prog, infer_startup_prog): with fluid.unique_name.guard(): # Infer process infer_model = lm_model.LanguageModel( args, vocab_size, test_mode=True) infer_model.build() infer_progs = infer_prog, infer_startup_prog, infer_model with fluid.program_guard(train_prog, train_startup_prog): with fluid.unique_name.guard(): # Training process train_model = lm_model.LanguageModel( args, vocab_size, test_mode=False) train_model.build() fluid.clip.set_gradient_clip( clip=fluid.clip.GradientClipByGlobalNorm( clip_norm=args.max_grad_norm)) # build optimizer if args.optim == 'adagrad': optimizer = fluid.optimizer.Adagrad( learning_rate=args.learning_rate, epsilon=0.0, initial_accumulator_value=1.0) elif args.optim == 'sgd': optimizer = fluid.optimizer.SGD( learning_rate=args.learning_rate) elif args.optim == 'adam': optimizer = fluid.optimizer.Adam( learning_rate=args.learning_rate) elif args.optim == 'rprop': optimizer = fluid.optimizer.RMSPropOptimizer( learning_rate=args.learning_rate) else: logger.error('Unsupported optimizer: {}'.format(args.optim)) exit(-1) optimizer.minimize(train_model.loss * args.num_steps) # initialize parameters place = core.CUDAPlace(0) if args.use_gpu else core.CPUPlace() exe = Executor(place) train_progs = train_prog, train_startup_prog, train_model if args.local: logger.info("local start_up:") train_loop(args, logger, vocab, train_progs, infer_progs, optimizer) else: if args.update_method == "nccl2": trainer_id = int(os.getenv("PADDLE_TRAINER_ID", "0")) if args.test_nccl: worker_endpoints_env = os.getenv("PADDLE_WORK_ENDPOINTS") worker_endpoints = worker_endpoints_env.split(',') trainers_num = len(worker_endpoints) current_endpoint = worker_endpoints[trainer_id] else: port = os.getenv("PADDLE_PORT") worker_ips = os.getenv("PADDLE_TRAINERS") worker_endpoints = [] for ip in worker_ips.split(","): worker_endpoints.append(':'.join([ip, port])) worker_endpoints_env = ','.join(worker_endpoints) trainers_num = len(worker_endpoints) current_endpoint = os.getenv("POD_IP") + ":" + port if trainer_id == 0: logger.info("train_id == 0, sleep 60s") time.sleep(60) logger.info("trainers_num:{}".format(trainers_num)) logger.info("worker_endpoints:{}".format(worker_endpoints)) logger.info("current_endpoint:{}".format(current_endpoint)) config = fluid.DistributeTranspilerConfig() config.mode = "nccl2" t = fluid.DistributeTranspiler(config=config) t.transpile( trainer_id, trainers=worker_endpoints_env, current_endpoint=current_endpoint, program=train_prog, startup_program=train_startup_prog) train_progs = train_prog, train_startup_prog, train_model train_loop(args, logger, vocab, train_progs, infer_progs, optimizer, trainers_num, trainer_id, worker_endpoints) else: port = os.getenv("PADDLE_PORT", "6174") pserver_ips = os.getenv("PADDLE_PSERVERS") eplist = [] for ip in pserver_ips.split(","): eplist.append(':'.join([ip, port])) pserver_endpoints = ",".join(eplist) trainers = int(os.getenv("PADDLE_TRAINERS_NUM", "0")) current_endpoint = os.getenv("POD_IP") + ":" + port trainer_id = int(os.getenv("PADDLE_TRAINER_ID")) logger.info("pserver_endpoints:{}".format(pserver_endpoints)) logger.info("current_endpoint:{}".format(current_endpoint)) logger.info("trainer_id:{}".format(trainer_id)) logger.info("pserver_ips:{}".format(pserver_ips)) logger.info("port:{}".format(port)) t = fluid.DistributeTranspiler() t.transpile( trainer_id, pservers=pserver_endpoints, trainers=trainers, program=train_prog, startup_program=startup_prog) if training_role == "PSERVER": logger.info("distributed: pserver started") current_endpoint = os.getenv("POD_IP") + ":" + os.getenv( "PADDLE_PORT") if not current_endpoint: logger.critical("need env SERVER_ENDPOINT") exit(1) pserver_prog = t.get_pserver_program(current_endpoint) pserver_startup = t.get_startup_program(current_endpoint, pserver_prog) exe.run(pserver_startup) exe.run(pserver_prog) elif training_role == "TRAINER": logger.info("distributed: trainer started") trainer_prog = t.get_trainer_program() train_loop(args, logger, vocab, train_progs, infer_progs, optimizer) else: logger.critical( "environment var TRAINER_ROLE should be TRAINER os PSERVER") exit(1) def init_pretraining_params(exe, pretraining_params_path, main_program): assert os.path.exists(pretraining_params_path ), "[%s] cann't be found." % pretraining_params_path def existed_params(var): if not isinstance(var, fluid.framework.Parameter): return False return os.path.exists(os.path.join(pretraining_params_path, var.name)) fluid.io.load_vars( exe, pretraining_params_path, main_program=main_program, predicate=existed_params) print("Load pretraining parameters from {}.".format( pretraining_params_path)) def train_loop(args, logger, vocab, train_progs, infer_progs, optimizer, nccl2_num_trainers=1, nccl2_trainer_id=0, worker_endpoints=None): train_prog, train_startup_prog, train_model = train_progs infer_prog, infer_startup_prog, infer_model = infer_progs # prepare device place = core.CUDAPlace(0) if args.use_gpu else core.CPUPlace() exe = Executor(place) if not args.use_gpu: place = fluid.CPUPlace() import multiprocessing dev_count = int(os.environ.get('CPU_NUM', multiprocessing.cpu_count())) else: place = fluid.CUDAPlace(0) dev_count = fluid.core.get_cuda_device_count() if args.load_dir: logger.info('load pretrained checkpoints from {}'.format(args.load_dir)) fluid.io.load_persistables(exe, args.load_dir, main_program=train_prog) elif args.load_pretraining_params: logger.info('load pretrained params from {}'.format(args.load_pretraining_params)) exe.run(train_startup_prog) init_pretraining_params(exe, args.load_pretraining_params, main_program=train_prog) else: exe.run(train_startup_prog) # prepare data feed_list = [ train_prog.global_block().var(var_name) for var_name in train_model.feed_order ] feeder = fluid.DataFeeder(feed_list, place) logger.info('Training the model...') exe_strategy = fluid.parallel_executor.ExecutionStrategy() parallel_executor = fluid.ParallelExecutor( loss_name=train_model.loss.name, main_program=train_prog, use_cuda=bool(args.use_gpu), exec_strategy=exe_strategy, num_trainers=nccl2_num_trainers, trainer_id=nccl2_trainer_id) logger.info("begin to load data") train_data = data.BidirectionalLMDataset( args.train_path, vocab, test=(not args.shuffle), shuffle_on_load=args.shuffle) logger.info("finished load vocab") # get train epoch size log_interval = args.log_interval total_time = 0.0 batch_size = args.batch_size hidden_size = args.hidden_size custom_samples_array = np.zeros( (batch_size, args.num_steps, args.n_negative_samples_batch + 1), dtype='int64') custom_probabilities_array = np.zeros( (batch_size, args.num_steps, args.n_negative_samples_batch + 1), dtype='float32') for i in range(batch_size): for j in range(0, args.num_steps): for k in range(0, args.n_negative_samples_batch + 1): custom_samples_array[i][j][k] = k custom_probabilities_array[i][j][k] = 1.0 for epoch_id in range(args.max_epoch): start_time = time.time() logger.info("epoch id {}".format(epoch_id)) train_data_iter = lambda: train_data.iter_batches(batch_size * dev_count, args.num_steps) train_reader = read_multiple(train_data_iter, batch_size, dev_count) total_num = 0 n_batch_loss = 0.0 n_batch_cnt = 0 last_hidden_values = np.zeros( (dev_count, args.num_layers * 2 * batch_size * args.embed_size), dtype='float32') last_cell_values = np.zeros( (dev_count, args.num_layers * 2 * batch_size * hidden_size), dtype='float32') begin_time = time.time() for batch_id, batch_list in enumerate(train_reader(), 1): feed_data = batch_reader(batch_list, args) feed = list(feeder.feed_parallel(feed_data, dev_count)) for i in range(dev_count): init_hidden_tensor = fluid.core.LoDTensor() if args.use_gpu: placex = fluid.CUDAPlace(i) else: placex = fluid.CPUPlace() init_hidden_tensor.set(last_hidden_values[i], placex) init_cell_tensor = fluid.core.LoDTensor() init_cell_tensor.set(last_cell_values[i], placex) feed[i]['init_hiddens'] = init_hidden_tensor feed[i]['init_cells'] = init_cell_tensor fetch_outs = parallel_executor.run( feed=feed, fetch_list=[ train_model.loss.name, train_model.last_hidden.name, train_model.last_cell.name ], return_numpy=False) cost_train = np.array(fetch_outs[0]).mean() last_hidden_values = np.array(fetch_outs[1]) last_hidden_values = last_hidden_values.reshape( (dev_count, args.num_layers * 2 * batch_size * args.embed_size)) last_cell_values = np.array(fetch_outs[2]) last_cell_values = last_cell_values.reshape(( dev_count, args.num_layers * 2 * batch_size * args.hidden_size)) total_num += args.batch_size * dev_count n_batch_loss += np.array(fetch_outs[0]).sum() n_batch_cnt += len(np.array(fetch_outs[0])) if batch_id > 0 and batch_id % log_interval == 0: smoothed_ppl = np.exp(n_batch_loss / n_batch_cnt) ppl = np.exp( np.array(fetch_outs[0]).sum() / len(np.array(fetch_outs[0]))) used_time = time.time() - begin_time speed = log_interval / used_time logger.info( "[train] epoch:{}, step:{}, loss:{:.3f}, ppl:{:.3f}, smoothed_ppl:{:.3f}, speed:{:.3f}". format(epoch_id, batch_id, n_batch_loss / n_batch_cnt, ppl, smoothed_ppl, speed)) n_batch_loss = 0.0 n_batch_cnt = 0 begin_time = time.time() if batch_id > 0 and batch_id % args.dev_interval == 0: valid_ppl = eval(vocab, infer_progs, dev_count, logger, args) logger.info("valid ppl {}".format(valid_ppl)) if batch_id > 0 and batch_id % args.save_interval == 0: model_path = os.path.join(args.para_save_dir, str(batch_id + epoch_id)) if not os.path.isdir(model_path): os.makedirs(model_path) fluid.io.save_persistables( executor=exe, dirname=model_path, main_program=train_prog) end_time = time.time() total_time += end_time - start_time if epoch_id == args.max_epoch - 1 and args.enable_ce: logger.info("lstm_language_model_duration\t%s" % (total_time / args.max_epoch)) logger.info("lstm_language_model_loss\t%s" % ppl[0]) model_path = os.path.join(args.para_save_dir, str(epoch_id)) if not os.path.isdir(model_path): os.makedirs(model_path) fluid.io.save_persistables( executor=exe, dirname=model_path, main_program=train_prog) valid_ppl = eval(vocab, infer_progs, dev_count, logger, args) logger.info("valid ppl {}".format(valid_ppl)) test_ppl = eval(vocab, infer_progs, dev_count, logger, args) logger.info("test ppl {}".format(test_ppl)) if __name__ == '__main__': train()