def train(data_path):
train_loader, test_loader, vocab = get_dataloader(data_path=data_path, bs=32, seq_len=50)
model = TextCNN(ModelConfig())
print(model)
config = TrainConfig()
optimizer = optim.Adam(model.parameters(), lr=config.lr)
criterion = nn.CrossEntropyLoss(ignore_index=1) # Ignoring <PAD> Token
model.train()
gs = 0
for epoch in tqdm(range(config.num_epochs)):
for idx, batch in tqdm(enumerate(train_loader)):
gs += 1
inputs, targets = batch.text, batch.label
optimizer.zero_grad()
outputs = model(inputs)
loss = criterion(outputs, targets)
loss.backward()
optimizer.step()
if gs % 500 == 0:
writer.add_scalar('train/loss', loss.item(), gs)
print(f'{gs} loss : {loss.item()}')
train_acc, train_f1, test_acc, test_f1 = evaluate(model, './rsc/data/')
writer.add_scalar('train/acc', train_acc, epoch)
writer.add_scalar('train/f1', train_f1, epoch)
writer.add_scalar('test/acc', test_acc, epoch)
writer.add_scalar('test/f1', test_f1, epoch)
def main(_):
# parse arguments
config = TrainConfig(local=True)
# train
if config.should_continue:
continue_training(config)
elif config.sample > 0:
sample(config)
else:
begin_training(config)
def get_model(input):
trainconfig_worker = TrainConfig()
model = tf.keras.models.Sequential()
model.add(
tf.keras.layers.SimpleRNN(
model_chout_num['u1'],
input_shape=(input, trainconfig_worker.train_input_size)))
model.add(tf.keras.layers.Dense(1))
return model
def test_data_loader_coco(self):
'''
This test checks below:
'''
fm = FileManager()
train_config = TrainConfig()
dataloader = MnistDataLoader(
is_training=train_config.is_trainable,
datasize=train_config.data_size,
batch_size=train_config.batch_size,
multiprocessing_num=train_config.multiprocessing_num,
is_image_scaling=False)
images_placeholder = tf.placeholder(dtype=model_config['image_dtype'],
shape=dataloader.image_shape)
label_placeholder = tf.placeholder(dtype=model_config['label_dtype'],
shape=[None])
dataset = dataloader.input_fn(images_placeholder, label_placeholder)
iterator = dataset.make_initializable_iterator()
image_numpy, label_numpy = dataloader.import_data(
imagefilename=fm.train_images_filename,
labelfilename=fm.train_labels_filename)
with self.test_session() as sess:
sess.run(iterator.initializer,
feed_dict={
images_placeholder: image_numpy,
label_placeholder: label_numpy
})
images_op, labels_op = iterator.get_next()
for n in range(0, 50):
image_numpy_batch, label_numpy_batch = sess.run(
[images_op, labels_op])
image_index = 0
image_pick = image_numpy_batch[image_index, :, :, 0]
label_pick = label_numpy_batch[image_index]
plt.figure(n)
plt.imshow(image_pick.astype(np.uint8))
plt.title('True = %d' % label_pick)
plt.show()
from train_config import PreprocessingConfig
from train_config import FLAGS
from model_config import DEFAULT_INPUT_RESOL
from model_config import DEFAULT_HG_INOUT_RESOL
from model_config import DEFAULT_INPUT_CHNUM
from model_config import NUM_OF_KEYPOINTS
# for coco dataset
import dataset_augment
from dataset_prepare import CocoMetadata
DEFAULT_HEIGHT = DEFAULT_INPUT_RESOL
DEFAULT_WIDTH = DEFAULT_INPUT_RESOL
preproc_config = PreprocessingConfig()
train_config = TrainConfig()
class DataSetInput(object):
"""Generates DataSet input_fn for training or evaluation
Args:
is_training: `bool` for whether the input is for training
data_dir: `str` for the directory of the training and validation data;
if 'null' (the literal string 'null', not None), then construct a null
pipeline, consisting of empty images.
use_bfloat16: If True, use bfloat16 precision; else use float32.
transpose_input: 'bool' for whether to use the double transpose trick
"""
def __init__(self,
is_training,
data_dir,
print("--------------------------------------------")
rate_record_index += 1
print("Training finished!")
file_writer.close()
if __name__ == '__main__':
tf.logging.set_verbosity(tf.logging.INFO)
trainconfig_worker = TrainConfig()
fm = FileManager()
# dataloader instance gen
dataloader_train = MnistDataLoader(is_training =trainconfig_worker.is_trainable,
datasize =trainconfig_worker.train_data_size,
batch_size =trainconfig_worker.batch_size,
multiprocessing_num=trainconfig_worker.multiprocessing_num,
is_image_scaling =True)
dataloader_test = MnistDataLoader(is_training =False,
datasize =trainconfig_worker.test_data_size)
# model tranining
with tf.name_scope(name='trainer',values=[dataloader_train,dataloader_test]):
def train(dataset_train, dataset_test):
model_config = ModelConfig()
train_config = TrainConfig()
dataset_handle = tf.placeholder(tf.string, shape=[])
dataset_train_iterator = dataset_train.make_one_shot_iterator()
# dataset_test_iterator = dataset_test.make_one_shot_iterator()
inputs = tf.placeholder(dtype=model_config.dtype,
shape=[
train_config.batch_size,
model_config._input_size,
model_config._input_size,
model_config.input_chnum
])
true_heatmap = tf.placeholder(dtype=model_config.dtype,
shape=[
train_config.batch_size,
model_config._output_size,
model_config._output_size,
model_config.output_chnum
])
# model building =========================
# < complete codes here >
modelbuilder = ModelBuilder(model_config=model_config)
pred_heatmap = modelbuilder.get_model(model_in=inputs, scope='model')
# traning ops =============================================
# < complete codes here >
loss_heatmap = train_config.loss_fn(true_heatmap -
pred_heatmap) / train_config.batch_size
loss_regularizer = tf.losses.get_regularization_loss()
loss_op = loss_heatmap + loss_regularizer
global_step = tf.Variable(0, trainable=False)
batchnum_per_epoch = np.floor(train_config.train_data_size /
train_config.batch_size)
lr_op = tf.train.exponential_decay(
learning_rate=train_config.learning_rate,
global_step=global_step,
decay_steps=train_config.learning_rate_decay_step,
decay_rate=train_config.learning_rate_decay_rate,
staircase=True)
opt_op = train_config.opt_fn(learning_rate=lr_op, name='opt_op')
train_op = opt_op.minimize(loss_op, global_step)
# For Tensorboard ===========================================
file_writer = tf.summary.FileWriter(logdir=train_config.tflogdir)
file_writer.add_graph(tf.get_default_graph())
tb_summary_loss_train = tf.summary.scalar('loss_train', loss_op)
tb_summary_loss_test = tf.summary.scalar('loss_test', loss_op)
tb_summary_lr = tf.summary.scalar('learning_rate', lr_op)
# training ==============================
init_var = tf.global_variables_initializer()
print('[train] training_epochs = %s' % train_config.training_epochs)
print('------------------------------------')
# build dataset ========================
# inputs_test_op, true_heatmap_test_op = dataset_test_iterator.get_next()
inputs_train_op, true_heatmap_train_op = dataset_train_iterator.get_next()
with tf.Session() as sess:
# Run the variable initializer
sess.run(init_var)
# train_handle = sess.run(dataset_train_iterator.string_handle())
# test_handle = sess.run(dataset_test_iterator.string_handle())
for epoch in range(train_config.training_epochs):
inputs_train, true_heatmap_train = sess.run(
[inputs_train_op, true_heatmap_train_op])
# inputs_valid,true_heatmap_valid = sess.run([inputs_test_op,true_heatmap_test_op])
train_start_time = time.time()
# train model
# _,loss_train = sess.run([train_op,loss_op],
# feed_dict={dataset_handle: train_handle,
# modelbuilder.dropout_keeprate:model_config.output.dropout_keeprate})
_, loss_train = sess.run(
[train_op, loss_op],
feed_dict={
inputs:
inputs_train,
true_heatmap:
true_heatmap_train,
modelbuilder.dropout_keeprate:
model_config.output.dropout_keeprate
})
train_elapsed_time = time.time() - train_start_time
global_step_eval = global_step.eval()
if train_config.display_step == 0:
continue
elif global_step_eval % train_config.display_step == 0:
print('[train] curr epochs = %s' % epoch)
# # test model
# loss_test = loss_op.eval(feed_dict={dataset_handle: test_handle,
# modelbuilder.dropout_keeprate: 1.0})
#
# loss_test = loss_op.eval( feed_dict={inputs: inputs_valid,
# true_heatmap: true_heatmap_valid,
# modelbuilder.dropout_keeprate: 1.0})
# tf summary
summary_loss_train = tb_summary_loss_train.eval(
feed_dict={
inputs: inputs_train,
true_heatmap: true_heatmap_train,
modelbuilder.dropout_keeprate: 1.0
})
# summary_loss_test = tb_summary_loss_test.eval( feed_dict={inputs: inputs_valid,
# true_heatmap: true_heatmap_valid,
# modelbuilder.dropout_keeprate: 1.0})
#
# summary_loss_train = tb_summary_loss_train.eval(feed_dict={dataset_handle: train_handle,
# modelbuilder.dropout_keeprate:1.0})
#
# summary_loss_test = tb_summary_loss_test.eval(feed_dict={dataset_handle: test_handle,
# modelbuilder.dropout_keeprate: 1.0})
summary_lr = tb_summary_lr.eval()
file_writer.add_summary(summary_loss_train, global_step_eval)
# file_writer.add_summary(summary_loss_test,global_step_eval)
file_writer.add_summary(summary_lr, global_step_eval)
print('At step = %d, train elapsed_time = %.1f ms' %
(global_step_eval, train_elapsed_time))
print("Training set loss (avg over batch)= %.2f " %
(loss_train))
# print("Test set Err loss (total batch)= %.2f %%" % (loss_test))
print("--------------------------------------------")
print("Training finished!")
file_writer.close()
ckpt_save_path = saver.save(sess,
train_config.ckpt_dir +
'model.ckpt',
global_step=global_step_eval)
tf.logging.info("Global step - %s: Model saved in file: %s" %
(global_step_eval, ckpt_save_path))
print("Training finished!")
file_writer_train.close()
file_writer_valid.close()
if __name__ == '__main__':
tf.logging.set_verbosity(tf.logging.INFO)
train_config = TrainConfig()
model_config = ModelConfig(setuplog_dir=train_config.setuplog_dir)
preproc_config = PreprocessingConfig(
setuplog_dir=train_config.setuplog_dir)
train_config.send_setuplog_to_gcp_bucket()
preproc_config.show_info()
# dataloader instance gen
dataloader_train, dataloader_valid = \
[DataLoader(
is_training =is_training,
data_dir =DATASET_DIR,
transpose_input =False,
train_config = train_config,
model_config = model_config,
epoch = increment(ops.epoch_var, sess)
sess.run(tf.assign(ops.batch_var, 0))
batch = sess.run(ops.batch_var)
sess.close()
def begin_training(config):
create_training_ops()
sess = tf.Session()
sess.run(tf.global_variables_initializer())
ops = TrainOps()
ops.populate(sess)
train(sess, ops, config)
def continue_training(config):
sess, ops = load_session(config)
train(sess, ops, config)
# Run
if __name__ == '__main__':
config = TrainConfig()
if config.sample > 0:
sample(config)
elif config.should_continue:
continue_training(config)
else:
begin_training(config)
def main():
sys.path.insert(0, TF_MODULE_DIR)
sys.path.insert(0, EXPORT_DIR)
sys.path.insert(0, COCO_DATALOAD_DIR)
# # configuration file
# config = configparser.ConfigParser()
#
# config_file = "mv2_cpm.cfg"
# if os.path.exists(config_file):
# config.read(config_file)
# params = {}
# for _ in config.options("Train"):
# params[_] = eval(config.get("Train", _))
#
# os.environ['CUDA_VISIBLE_DEVICES'] = params['visible_devices']
train_config = TrainConfig()
model_config = ModelConfig(setuplog_dir=train_config.setuplog_dir)
preproc_config = PreprocessingConfig(
setuplog_dir=train_config.setuplog_dir)
# ================================================
# =============== dataset pipeline ===============
# ================================================
# dataloader instance gen
dataloader_train, dataloader_valid = \
[DataLoader(
is_training =is_training,
data_dir =DATASET_DIR,
transpose_input =False,
train_config =train_config,
model_config =model_config,
preproc_config =preproc_config,
use_bfloat16 =False) for is_training in [True, False]]
dataset_train = dataloader_train.input_fn()
# dataset_valid = dataloader_valid.input_fn()
data = dataset_train.repeat()
# data = dataset_train
# ================================================
# ============== configure model =================
# ================================================
model_builder = HourglassModelBuilder()
model_builder.build_model()
model = model_builder.model
model.summary()
model.compile(
optimizer=tf.optimizers.Adam(0.001, epsilon=1e-8), #'adam',
loss=tf.losses.MeanSquaredError(),
metrics=['accuracy']) #tf.metrics.Accuracy
# ================================================
# =============== setup output ===================
# ================================================
current_time = datetime.now().strftime("%Y%m%d%H%M%S")
output_path = os.path.join(PROJ_HOME, "outputs")
# output model file(.hdf5)
model_path = os.path.join(output_path, "models")
if not os.path.exists(model_path):
os.mkdir(model_path)
checkpoint_path = os.path.join(model_path,
"hg_" + current_time + ".hdf5") #".ckpt"
check_pointer = tf.keras.callbacks.ModelCheckpoint(checkpoint_path,
save_weights_only=False,
verbose=1)
# output tensorboard log
log_path = os.path.join(output_path, "logs")
log_path = os.path.join(log_path, "hg_" + current_time)
tensorboard = tf.keras.callbacks.TensorBoard(log_path)
# ================================================
# ==================== train! ====================
# ================================================
model.fit(data,
epochs=300,
steps_per_epoch=100,
callbacks=[check_pointer, tensorboard]) # steps_per_epoch=100,