# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved. # # 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 print_function import unittest import paddle.fluid as fluid import paddle.fluid.core as core from paddle.fluid.dygraph.nn import Embedding, FC import paddle.fluid.framework as framework from paddle.fluid.optimizer import Adam from paddle.fluid.dygraph.base import to_variable from paddle.fluid.dygraph.learning_rate_scheduler import LearningRateDecay from test_imperative_base import new_program_scope import numpy as np import six class SimpleLSTMRNN(fluid.Layer): def __init__(self, name_scope, hidden_size, num_steps, num_layers=2, init_scale=0.1, dropout=None): super(SimpleLSTMRNN, self).__init__(name_scope) self._hidden_size = hidden_size self._num_layers = num_layers self._init_scale = init_scale self._dropout = dropout self._input = None self._num_steps = num_steps self.cell_array = [] self.hidden_array = [] def _build_once(self, input_embedding, init_hidden=None, init_cell=None): self.weight_1_arr = [] self.weight_2_arr = [] self.bias_arr = [] self.mask_array = [] for i in range(self._num_layers): weight_1 = self.create_parameter( attr=fluid.ParamAttr( initializer=fluid.initializer.UniformInitializer( low=-self._init_scale, high=self._init_scale)), shape=[self._hidden_size * 2, self._hidden_size * 4], dtype="float32", default_initializer=fluid.initializer.UniformInitializer( low=-self._init_scale, high=self._init_scale)) self.weight_1_arr.append(self.add_parameter('w_%d' % i, weight_1)) bias_1 = self.create_parameter( attr=fluid.ParamAttr( initializer=fluid.initializer.UniformInitializer( low=-self._init_scale, high=self._init_scale)), shape=[self._hidden_size * 4], dtype="float32", default_initializer=fluid.initializer.Constant(0.0)) self.bias_arr.append(self.add_parameter('b_%d' % i, bias_1)) def forward(self, input_embedding, init_hidden=None, init_cell=None): self.cell_array = [] self.hidden_array = [] for i in range(self._num_layers): pre_hidden = fluid.layers.slice( init_hidden, axes=[0], starts=[i], ends=[i + 1]) pre_cell = fluid.layers.slice( init_cell, axes=[0], starts=[i], ends=[i + 1]) pre_hidden = fluid.layers.reshape( pre_hidden, shape=[-1, self._hidden_size]) pre_cell = fluid.layers.reshape( pre_cell, shape=[-1, self._hidden_size]) self.hidden_array.append(pre_hidden) self.cell_array.append(pre_cell) res = [] for index in range(self._num_steps): self._input = fluid.layers.slice( input_embedding, axes=[1], starts=[index], ends=[index + 1]) self._input = fluid.layers.reshape( self._input, shape=[-1, self._hidden_size]) for k in range(self._num_layers): pre_hidden = self.hidden_array[k] pre_cell = self.cell_array[k] weight_1 = self.weight_1_arr[k] bias = self.bias_arr[k] nn = fluid.layers.concat([self._input, pre_hidden], 1) gate_input = fluid.layers.matmul(x=nn, y=weight_1) gate_input = fluid.layers.elementwise_add(gate_input, bias) i, j, f, o = fluid.layers.split( gate_input, num_or_sections=4, dim=-1) c = pre_cell * fluid.layers.sigmoid(f) + fluid.layers.sigmoid( i) * fluid.layers.tanh(j) m = fluid.layers.tanh(c) * fluid.layers.sigmoid(o) self.hidden_array[k] = m self.cell_array[k] = c self._input = m if self._dropout is not None and self._dropout > 0.0: self._input = fluid.layers.dropout( self._input, dropout_prob=self._dropout, dropout_implementation='upscale_in_train') res.append( fluid.layers.reshape( self._input, shape=[1, -1, self._hidden_size])) real_res = fluid.layers.concat(res, 0) real_res = fluid.layers.transpose(x=real_res, perm=[1, 0, 2]) last_hidden = fluid.layers.concat(self.hidden_array, 1) last_hidden = fluid.layers.reshape( last_hidden, shape=[-1, self._num_layers, self._hidden_size]) last_hidden = fluid.layers.transpose(x=last_hidden, perm=[1, 0, 2]) last_cell = fluid.layers.concat(self.cell_array, 1) last_cell = fluid.layers.reshape( last_cell, shape=[-1, self._num_layers, self._hidden_size]) last_cell = fluid.layers.transpose(x=last_cell, perm=[1, 0, 2]) return real_res, last_hidden, last_cell class PtbModel(fluid.Layer): def __init__(self, name_scope, hidden_size, vocab_size, num_layers=2, num_steps=20, init_scale=0.1, dropout=None): super(PtbModel, self).__init__(name_scope) self.hidden_size = hidden_size self.vocab_size = vocab_size self.init_scale = init_scale self.num_layers = num_layers self.num_steps = num_steps self.dropout = dropout self.simple_lstm_rnn = SimpleLSTMRNN( self.full_name(), hidden_size, num_steps, num_layers=num_layers, init_scale=init_scale, dropout=dropout) self.embedding = Embedding( self.full_name(), size=[vocab_size, hidden_size], dtype='float32', is_sparse=False, param_attr=fluid.ParamAttr( name='embedding_para', initializer=fluid.initializer.UniformInitializer( low=-init_scale, high=init_scale))) self.out_project = FC(self.full_name(), self.vocab_size, num_flatten_dims=2) def forward(self, input, label, init_hidden, init_cell): init_h = fluid.layers.reshape( init_hidden, shape=[self.num_layers, -1, self.hidden_size]) init_c = fluid.layers.reshape( init_cell, shape=[self.num_layers, -1, self.hidden_size]) x_emb = self.embedding(input) x_emb = fluid.layers.reshape( x_emb, shape=[-1, self.num_steps, self.hidden_size]) if self.dropout is not None and self.dropout > 0.0: x_emb = fluid.layers.dropout( x_emb, dropout_prob=self.drop_out, dropout_implementation='upscale_in_train') rnn_out, last_hidden, last_cell = self.simple_lstm_rnn(x_emb, init_h, init_c) rnn_out = fluid.layers.reshape( rnn_out, shape=[-1, self.num_steps, self.hidden_size]) projection = self.out_project(rnn_out) projection = fluid.layers.reshape( projection, shape=[-1, self.vocab_size]) loss = fluid.layers.softmax_with_cross_entropy( logits=projection, label=label, soft_label=False) loss = fluid.layers.reshape(loss, shape=[-1, self.num_steps]) loss = fluid.layers.reduce_mean(loss, dim=[0]) loss = fluid.layers.reduce_sum(loss) return loss, last_hidden, last_cell class TestDygraphPtbRnn(unittest.TestCase): def setUp(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) new_lr = 1.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam(learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr)) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None for i in range(batch_num): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) if i == 0: for param in ptb_model.parameters(): dy_param_init[param.name] = param.numpy() dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() if i == batch_num - 1: for param in ptb_model.parameters(): dy_param_updated[param.name] = param.numpy() # check optimizer self.opti_dict = adam.state_dict() self.base_opti = {} for k, v in self.opti_dict.items(): self.base_opti[v.name] = v.numpy() self.assertTrue(np.sum(np.abs(v.numpy())) != 0) fluid.save_dygraph(self.opti_dict, "./test_dy") self.state_dict = ptb_model.state_dict() self.model_base = {} for k, v in self.state_dict.items(): np_t = v.numpy() self.model_base[v.name] = np_t fluid.save_dygraph(self.state_dict, "./test_dy") def testLoadAndSetVarBase(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) new_lr = 1.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam(learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr)) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None for i in range(batch_num): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) if i == 0: for param in ptb_model.parameters(): dy_param_init[param.name] = param.numpy() dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() if i == batch_num - 1: for param in ptb_model.parameters(): dy_param_updated[param.name] = param.numpy() # check optimizer opti_dict = adam.state_dict() # set to zero for k, v in opti_dict.items(): np_t = v.numpy() var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) self.assertTrue(np.sum(np.abs(v.numpy())) == 0) if isinstance(adam._learning_rate, LearningRateDecay): adam._learning_rate.step_num = 0 para_state_dict, opti_state_dict = fluid.load_dygraph("./test_dy") adam.set_dict(opti_state_dict) opti_dict = adam.state_dict() for k, v in opti_dict.items(): self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name])) # check parameter state_dict = ptb_model.state_dict() for k, v in state_dict.items(): np_t = v.numpy() var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) ptb_model.set_dict(para_state_dict) state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testSetVariable(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) new_lr = 1.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam(learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr)) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None for i in range(batch_num): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) if i == 0: for param in ptb_model.parameters(): dy_param_init[param.name] = param.numpy() dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() if i == batch_num - 1: for param in ptb_model.parameters(): dy_param_updated[param.name] = param.numpy() # check optimizer opti_dict = adam.state_dict() # set to zero for k, v in opti_dict.items(): np_t = v.numpy() var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) self.assertTrue(np.sum(np.abs(v.numpy())) == 0) if isinstance(adam._learning_rate, LearningRateDecay): adam._learning_rate.step_num = 0 adam.set_dict(self.opti_dict) opti_dict = adam.state_dict() for k, v in opti_dict.items(): self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name])) # check parameter state_dict = ptb_model.state_dict() for k, v in state_dict.items(): np_t = v.numpy() var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) ptb_model.set_dict(self.state_dict) state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testSetNumpy(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) new_lr = 1.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam(learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr)) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None for i in range(batch_num): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) if i == 0: for param in ptb_model.parameters(): dy_param_init[param.name] = param.numpy() dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() if i == batch_num - 1: for param in ptb_model.parameters(): dy_param_updated[param.name] = param.numpy() # check optimizer opti_dict = adam.state_dict() np_opti_dict = {} # set to zero for k, v in opti_dict.items(): np_t = v.numpy() np_opti_dict[v.name] = np_t var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) self.assertTrue(np.sum(np.abs(v.numpy())) == 0) if isinstance(adam._learning_rate, LearningRateDecay): adam._learning_rate.step_num = 0 adam.set_dict(np_opti_dict) opti_dict = adam.state_dict() for k, v in opti_dict.items(): self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name])) # check parameter state_dict = ptb_model.state_dict() np_state_dict = {} for k, v in state_dict.items(): np_t = v.numpy() np_state_dict[v.name] = np_t var = v.value().get_tensor() var.set(np.zeros_like(np_t), place) ptb_model.set_dict(np_state_dict) state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testSetVariableBeforeTrain(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) #set lr to 0.0, not udpate parameter new_lr = 0.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam( learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr), beta1=0.8, beta2=0.6) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None adam.set_dict(self.opti_dict) ptb_model.set_dict(self.state_dict) for i in range(1): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() opti_dict = adam.state_dict() for k, v in opti_dict.items(): if k == "global_step": self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] + 1)) if k.find("beta1_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta1)) if k.find("beta2_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta2)) # check parameter state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testLoadAndSetVarBaseBeforeTrain(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) # set lr to zero not update parameter new_lr = 0.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam( learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr), beta1=0.8, beta2=0.6) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None state_dict, opti_dict = fluid.load_dygraph("./test_dy") adam.set_dict(opti_dict) ptb_model.set_dict(state_dict) for i in range(1): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() opti_dict = adam.state_dict() for k, v in opti_dict.items(): if k == "global_step": self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] + 1)) if k.find("beta1_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta1)) if k.find("beta2_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta2)) # check parameter state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testSetNumpyBeforeTrain(self): seed = 90 hidden_size = 10 vocab_size = 1000 num_layers = 1 num_steps = 3 init_scale = 0.1 batch_size = 4 batch_num = 200 with fluid.dygraph.guard(): fluid.default_startup_program().random_seed = seed fluid.default_main_program().random_seed = seed # TODO: marsyang1993 Change seed to ptb_model = PtbModel( "ptb_model", hidden_size=hidden_size, vocab_size=vocab_size, num_layers=num_layers, num_steps=num_steps, init_scale=init_scale) bd = [] lr_arr = [1.0] # this a fake lr decay strategy for i in range(1, 10): bd.append(100 * i) # set lr to 0.0, not update parameter new_lr = 0.0 lr_arr.append(new_lr) place = fluid.CPUPlace() if not core.is_compiled_with_cuda( ) else fluid.CUDAPlace(0) adam = Adam( learning_rate=fluid.layers.piecewise_decay( boundaries=bd, values=lr_arr), beta1=0.8, beta2=0.6) dy_param_updated = dict() dy_param_init = dict() dy_loss = None last_hidden = None last_cell = None np_opti_dict = {} np_state_dict = {} for k, v in self.opti_dict.items(): np_opti_dict[v.name] = v.numpy() for k, v in self.state_dict.items(): np_state_dict[v.name] = v.numpy() adam.set_dict(np_opti_dict) ptb_model.set_dict(np_state_dict) for i in range(1): x_data = np.arange(12).reshape(4, 3).astype('int64') y_data = np.arange(1, 13).reshape(4, 3).astype('int64') y_data = y_data.reshape((-1, 1)) init_hidden_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') init_cell_data = np.zeros( (num_layers, batch_size, hidden_size), dtype='float32') x = to_variable(x_data) y = to_variable(y_data) init_hidden = to_variable(init_hidden_data) init_cell = to_variable(init_cell_data) dy_loss, last_hidden, last_cell = ptb_model(x, y, init_hidden, init_cell) dy_loss.backward() adam.minimize(dy_loss) ptb_model.clear_gradients() opti_dict = adam.state_dict() for k, v in opti_dict.items(): if k == "global_step": self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] + 1)) if k.find("beta1_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta1)) if k.find("beta2_pow_acc_0") > 0: self.assertTrue( np.array_equal(v.numpy(), self.base_opti[v.name] * adam._beta2)) # check parameter state_dict = ptb_model.state_dict() for k, v in state_dict.items(): new_t = v.numpy() base_t = self.model_base[v.name] self.assertTrue(np.array_equal(new_t, base_t)) def testOnlyLoadParams(self): with fluid.dygraph.guard(): emb = fluid.dygraph.Embedding("emb", [10, 10]) state_dict = emb.state_dict() fluid.save_dygraph(state_dict, "emb_dy") para_state_dict, opti_state_dict = fluid.load_dygraph("emb_dy") self.assertTrue(opti_state_dict == None) if __name__ == '__main__': unittest.main()