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paddlepaddle--paddle/test/legacy_test/test_imperative_save_load_v2.py
2026-07-13 12:40:42 +08:00

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Python

# 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.
import os
import tempfile
import unittest
import numpy as np
from op_test import get_device_place
import paddle
from paddle import base
from paddle.base import core
from paddle.nn import Embedding
from paddle.optimizer import Adam
from paddle.optimizer.lr import LRScheduler
class SimpleLSTMRNN(paddle.nn.Layer):
def __init__(
self, hidden_size, num_steps, num_layers=2, init_scale=0.1, dropout=None
):
super().__init__()
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 = []
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=base.ParamAttr(
initializer=paddle.nn.initializer.Uniform(
low=-self._init_scale, high=self._init_scale
)
),
shape=[self._hidden_size * 2, self._hidden_size * 4],
dtype="float32",
default_initializer=paddle.nn.initializer.Uniform(
low=-self._init_scale, high=self._init_scale
),
)
self.weight_1_arr.append(self.add_parameter(f'w_{i}', weight_1))
bias_1 = self.create_parameter(
attr=base.ParamAttr(
initializer=paddle.nn.initializer.Uniform(
low=-self._init_scale, high=self._init_scale
)
),
shape=[self._hidden_size * 4],
dtype="float32",
default_initializer=paddle.nn.initializer.Constant(0.0),
)
self.bias_arr.append(self.add_parameter(f'b_{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 = paddle.slice(
init_hidden, axes=[0], starts=[i], ends=[i + 1]
)
pre_cell = paddle.slice(
init_cell, axes=[0], starts=[i], ends=[i + 1]
)
pre_hidden = paddle.reshape(
pre_hidden, shape=[-1, self._hidden_size]
)
pre_cell = paddle.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 = paddle.slice(
input_embedding, axes=[1], starts=[index], ends=[index + 1]
)
self._input = paddle.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 = paddle.concat([self._input, pre_hidden], 1)
gate_input = paddle.matmul(x=nn, y=weight_1)
gate_input = paddle.add(gate_input, bias)
i, j, f, o = paddle.split(
gate_input, num_or_sections=4, axis=-1
)
c = pre_cell * paddle.nn.functional.sigmoid(
f
) + paddle.nn.functional.sigmoid(i) * paddle.tanh(j)
m = paddle.tanh(c) * paddle.nn.functional.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 = paddle.nn.functional.dropout(
self._input,
p=self._dropout,
mode='upscale_in_train',
)
res.append(
paddle.reshape(self._input, shape=[1, -1, self._hidden_size])
)
real_res = paddle.concat(res, 0)
real_res = paddle.transpose(x=real_res, perm=[1, 0, 2])
last_hidden = paddle.concat(self.hidden_array, 1)
last_hidden = paddle.reshape(
last_hidden, shape=[-1, self._num_layers, self._hidden_size]
)
last_hidden = paddle.transpose(x=last_hidden, perm=[1, 0, 2])
last_cell = paddle.concat(self.cell_array, 1)
last_cell = paddle.reshape(
last_cell, shape=[-1, self._num_layers, self._hidden_size]
)
last_cell = paddle.transpose(x=last_cell, perm=[1, 0, 2])
return real_res, last_hidden, last_cell
class PtbModel(paddle.nn.Layer):
def __init__(
self,
hidden_size,
vocab_size,
num_layers=2,
num_steps=20,
init_scale=0.1,
dropout=None,
):
super().__init__()
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(
hidden_size,
num_steps,
num_layers=num_layers,
init_scale=init_scale,
dropout=dropout,
)
self.embedding = Embedding(
vocab_size,
hidden_size,
sparse=False,
weight_attr=base.ParamAttr(
name='embedding_para',
initializer=paddle.nn.initializer.Uniform(
low=-init_scale, high=init_scale
),
),
)
self.softmax_weight = self.create_parameter(
attr=base.ParamAttr(),
shape=[self.hidden_size, self.vocab_size],
dtype="float32",
default_initializer=paddle.nn.initializer.Uniform(
low=-self.init_scale, high=self.init_scale
),
)
self.softmax_bias = self.create_parameter(
attr=base.ParamAttr(),
shape=[self.vocab_size],
dtype="float32",
default_initializer=paddle.nn.initializer.Uniform(
low=-self.init_scale, high=self.init_scale
),
)
def forward(self, input, label, init_hidden, init_cell):
init_h = paddle.reshape(
init_hidden, shape=[self.num_layers, -1, self.hidden_size]
)
init_c = paddle.reshape(
init_cell, shape=[self.num_layers, -1, self.hidden_size]
)
x_emb = self.embedding(input)
x_emb = paddle.reshape(
x_emb, shape=[-1, self.num_steps, self.hidden_size]
)
if self.dropout is not None and self.dropout > 0.0:
x_emb = paddle.nn.functional.dropout(
x_emb,
p=self.drop_out,
mode='upscale_in_train',
)
rnn_out, last_hidden, last_cell = self.simple_lstm_rnn(
x_emb, init_h, init_c
)
rnn_out = paddle.reshape(
rnn_out, shape=[-1, self.num_steps, self.hidden_size]
)
projection = paddle.matmul(rnn_out, self.softmax_weight)
projection = paddle.add(projection, self.softmax_bias)
projection = paddle.reshape(projection, shape=[-1, self.vocab_size])
loss = paddle.nn.functional.softmax_with_cross_entropy(
logits=projection, label=label, soft_label=False
)
loss = paddle.reshape(loss, shape=[-1, self.num_steps])
loss = paddle.mean(loss, axis=[0])
loss = paddle.sum(loss)
return loss, last_hidden, last_cell
class TestDygraphPtbRnn(unittest.TestCase):
def setUp(self):
self.temp_dir = tempfile.TemporaryDirectory()
def tearDown(self):
self.temp_dir.cleanup()
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
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 = get_device_place()
scheduler = paddle.optimizer.lr.PiecewiseDecay(
boundaries=bd, values=lr_arr
)
adam = Adam(
learning_rate=scheduler, parameters=ptb_model.parameters()
)
dy_param_updated = {}
dy_param_init = {}
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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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)
scheduler.step()
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():
if isinstance(v, core.eager.Tensor):
self.base_opti[v.name] = v.numpy()
self.assertTrue(np.sum(np.abs(v.numpy())) != 0)
else:
self.base_opti[k] = v
paddle.save(
self.opti_dict,
os.path.join(self.temp_dir.name, "test_dy_v2.pdopt"),
)
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[k] = np_t
paddle.save(
self.state_dict,
os.path.join(self.temp_dir.name, "test_dy_v2.pdparams"),
)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
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 = get_device_place()
scheduler = paddle.optimizer.lr.PiecewiseDecay(
boundaries=bd, values=lr_arr
)
adam = Adam(
learning_rate=scheduler, parameters=ptb_model.parameters()
)
dy_param_updated = {}
dy_param_init = {}
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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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)
scheduler.step()
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():
if isinstance(v, core.eager.Tensor):
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)
para_state_dict = paddle.load(
os.path.join(self.temp_dir.name, "test_dy_v2.pdparams")
)
opti_state_dict = paddle.load(
os.path.join(self.temp_dir.name, "test_dy_v2.pdopt")
)
adam.set_state_dict(opti_state_dict)
opti_dict = adam.state_dict()
for k, v in opti_dict.items():
if isinstance(v, core.eager.Tensor):
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name]
)
else:
self.assertEqual(v, self.base_opti[k])
# 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[k]
np.testing.assert_array_equal(new_t, base_t)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
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 = get_device_place()
scheduler = paddle.optimizer.lr.PiecewiseDecay(
boundaries=bd, values=lr_arr
)
adam = Adam(
learning_rate=scheduler, parameters=ptb_model.parameters()
)
dy_param_updated = {}
dy_param_init = {}
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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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)
scheduler.step()
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():
if isinstance(v, core.eager.Tensor):
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, LRScheduler):
adam._learning_rate.step_num = 0
adam.set_state_dict(self.opti_dict)
opti_dict = adam.state_dict()
for k, v in opti_dict.items():
if isinstance(v, core.eager.Tensor):
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name]
)
else:
self.assertEqual(v, self.base_opti[k])
# 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[k]
np.testing.assert_array_equal(new_t, base_t)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
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 = get_device_place()
scheduler = paddle.optimizer.lr.PiecewiseDecay(
boundaries=bd, values=lr_arr
)
adam = Adam(
learning_rate=scheduler, parameters=ptb_model.parameters()
)
dy_param_updated = {}
dy_param_init = {}
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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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)
scheduler.step()
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():
if isinstance(v, core.eager.Tensor):
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)
else:
np_opti_dict[k] = v
if isinstance(adam._learning_rate, LRScheduler):
adam._learning_rate.step_num = 0
adam.set_state_dict(np_opti_dict)
opti_dict = adam.state_dict()
for k, v in opti_dict.items():
if isinstance(v, core.eager.Tensor):
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name]
)
else:
self.assertEqual(v, self.base_opti[k])
# 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[k] = 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[k]
np.testing.assert_array_equal(new_t, base_t)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
hidden_size=hidden_size,
vocab_size=vocab_size,
num_layers=num_layers,
num_steps=num_steps,
init_scale=init_scale,
)
place = get_device_place()
adam = Adam(
learning_rate=0.0,
beta1=0.8,
beta2=0.6,
parameters=ptb_model.parameters(),
)
dy_param_updated = {}
dy_param_init = {}
dy_loss = None
last_hidden = None
last_cell = None
adam.set_state_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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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":
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] + 1
)
if k.find("beta1_pow_acc_0") > 0:
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] * adam._beta1
)
if k.find("beta2_pow_acc_0") > 0:
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] * adam._beta2
)
state_dict = ptb_model.state_dict()
for k, v in state_dict.items():
new_t = v.numpy()
base_t = self.model_base[k]
np.testing.assert_array_equal(new_t, base_t)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
hidden_size=hidden_size,
vocab_size=vocab_size,
num_layers=num_layers,
num_steps=num_steps,
init_scale=init_scale,
)
bd = []
lr_arr = [0.0]
# 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 = get_device_place()
adam = Adam(
learning_rate=0.0,
beta1=0.8,
beta2=0.6,
parameters=ptb_model.parameters(),
)
dy_param_updated = {}
dy_param_init = {}
dy_loss = None
last_hidden = None
last_cell = None
model_prefix = os.path.join(self.temp_dir.name, "test_dy_v2")
state_dict = paddle.load(model_prefix + '.pdparams')
opti_dict = paddle.load(model_prefix + '.pdopt')
adam.set_state_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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(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":
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] + 1
)
if k.find("beta1_pow_acc_0") > 0:
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] * adam._beta1
)
if k.find("beta2_pow_acc_0") > 0:
np.testing.assert_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[k]
np.testing.assert_array_equal(new_t, base_t)
def func_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 base.dygraph.guard():
paddle.seed(seed)
paddle.framework.random._manual_program_seed(seed)
# TODO: marsyang1993 Change seed to
ptb_model = PtbModel(
hidden_size=hidden_size,
vocab_size=vocab_size,
num_layers=num_layers,
num_steps=num_steps,
init_scale=init_scale,
)
bd = []
lr_arr = [0.0]
# 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 = get_device_place()
scheduler = paddle.optimizer.lr.PiecewiseDecay(
boundaries=bd, values=lr_arr
)
adam = Adam(
learning_rate=scheduler,
beta1=0.8,
beta2=0.6,
parameters=ptb_model.parameters(),
)
dy_param_updated = {}
dy_param_init = {}
dy_loss = None
last_hidden = None
last_cell = None
np_opti_dict = {}
np_state_dict = {}
for k, v in self.opti_dict.items():
if isinstance(v, core.eager.Tensor):
np_opti_dict[v.name] = v.numpy()
else:
np_opti_dict[k] = v
for k, v in self.state_dict.items():
np_state_dict[k] = v.numpy()
adam.set_state_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 = paddle.to_tensor(x_data)
y = paddle.to_tensor(y_data)
init_hidden = paddle.to_tensor(init_hidden_data)
init_cell = paddle.to_tensor(init_cell_data)
dy_loss, last_hidden, last_cell = ptb_model(
x, y, init_hidden, init_cell
)
dy_loss.backward()
scheduler.step()
adam.minimize(dy_loss)
ptb_model.clear_gradients()
opti_dict = adam.state_dict()
for k, v in opti_dict.items():
if k == "LR_Scheduler":
np.testing.assert_array_equal(
v['last_epoch'], self.base_opti[k]['last_epoch'] + 1
)
if k.find("beta1_pow_acc_0") > 0:
np.testing.assert_array_equal(
v.numpy(), self.base_opti[v.name] * adam._beta1
)
if k.find("beta2_pow_acc_0") > 0:
np.testing.assert_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[k]
np.testing.assert_array_equal(new_t, base_t)
def func_testOnlyLoadParams(self):
with base.dygraph.guard():
emb = paddle.nn.Embedding(10, 10)
state_dict = emb.state_dict()
paddle.save(
state_dict,
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams'),
)
para_state_dict = paddle.load(
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams')
)
def func_test_no_state_in_input_dict(self):
with base.dygraph.guard():
emb = paddle.nn.Embedding(10, 10)
state_dict = emb.state_dict()
paddle.save(
state_dict,
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams'),
)
para_state_dict = paddle.load(
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams')
)
para_state_dict.pop('weight')
emb.set_state_dict(para_state_dict)
def func_test_state_shape_mismatch(self):
with base.dygraph.guard():
emb = paddle.nn.Embedding(10, 10)
state_dict = emb.state_dict()
paddle.save(
state_dict,
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams'),
)
para_state_dict = paddle.load(
os.path.join(self.temp_dir.name, 'saved_dy', 'emb_dy.pdparams'),
return_numpy=True,
)
para_state_dict['weight'] = np.expand_dims(
para_state_dict['weight'], axis=-1
)
emb.set_state_dict(para_state_dict)
def test_main(self):
self.func_setUp()
self.func_testLoadAndSetVarBase()
self.func_testSetVariable()
self.func_testSetNumpy()
self.func_testSetVariableBeforeTrain()
self.func_testLoadAndSetVarBaseBeforeTrain()
self.func_testSetNumpyBeforeTrain()
self.func_testOnlyLoadParams()
self.func_test_no_state_in_input_dict()
self.func_test_state_shape_mismatch()
if __name__ == '__main__':
unittest.main()