def __init__(self,
dataset,
class_num,
image_mean,
image_std,
network,
multi_scales,
is_flip,
devices,
verbose=False,
save_path=None,
show_image=False):
self.dataset = dataset
self.ndata = self.dataset.get_length()
self.class_num = class_num
self.image_mean = image_mean
self.image_std = image_std
self.multi_scales = multi_scales
self.is_flip = is_flip
self.network = network
self.devices = devices
self.context = mp.get_context('spawn')
self.val_func = None
self.results_queue = self.context.Queue(self.ndata)
self.verbose = verbose
self.save_path = save_path
if save_path is not None:
ensure_dir(save_path)
self.show_image = show_image
def save_and_link_checkpoint(self, snapshot_dir):
if self.local_rank > 0:
return
ensure_dir(snapshot_dir)
current_iter_checkpoint = osp.join(
snapshot_dir, 'iter-{}.pth'.format(self.state.iteration))
self.save_checkpoint(current_iter_checkpoint)
def __init__(self, dataset, class_num, image_mean, image_std, network,
multi_scales, is_flip, devices=0, out_idx=0, threds=3, config=None, logger=None,
verbose=False, save_path=None, show_image=False, show_prediction=False):
self.dataset = dataset
self.ndata = self.dataset.get_length()
self.class_num = class_num
self.image_mean = image_mean
self.image_std = image_std
self.multi_scales = multi_scales
self.is_flip = is_flip
self.network = network
self.devices = devices
if type(self.devices) == int: self.devices = [self.devices]
self.out_idx = out_idx
self.threds = threds
self.config = config
self.logger = logger
self.context = mp.get_context('spawn')
self.val_func = None
self.results_queue = self.context.Queue(self.ndata)
self.verbose = verbose
self.save_path = save_path
if save_path is not None:
ensure_dir(save_path)
self.show_image = show_image
self.show_prediction = show_prediction
def save_latest_ckpt(self, snapshot_dir):
if self.local_rank > 0:
return
ensure_dir(snapshot_dir)
current_iter_checkpoint = osp.join(
snapshot_dir, 'latest.pth')
self.save_checkpoint(current_iter_checkpoint)
def func_per_iteration(self, data, device):
img = data['data']
label = data['label']
hha = data['hha_img']
tsdf = data['tsdf']
label_weight = data['label_weight']
depth_mapping_3d = data['depth_mapping_3d']
name = data['fn']
sketch_gt = data['sketch_gt']
pred, pred_sketch = self.eval_ssc(img, hha, tsdf, depth_mapping_3d,
sketch_gt, device)
results_dict = {
'pred': pred,
'label': label,
'label_weight': label_weight,
'name': name,
'mapping': depth_mapping_3d
}
if self.save_path is not None:
ensure_dir(self.save_path)
ensure_dir(self.save_path + '_sketch')
fn = name + '.npy'
np.save(os.path.join(self.save_path, fn), pred)
np.save(os.path.join(self.save_path + '_sketch', fn), pred_sketch)
logger.info('Save the pred npz ' + fn)
return results_dict
def save_and_link_checkpoint(self, snapshot_dir, log_dir, log_dir_link):
ensure_dir(snapshot_dir)
if not osp.exists(log_dir_link):
link_file(log_dir, log_dir_link)
current_epoch_checkpoint = osp.join(
snapshot_dir, 'epoch-{}.pth'.format(self.state.epoch))
self.save_checkpoint(current_epoch_checkpoint)
last_epoch_checkpoint = osp.join(snapshot_dir, 'epoch-last.pth')
link_file(current_epoch_checkpoint, last_epoch_checkpoint)
def get_logger(log_dir=None, log_file=None, formatter=LogFormatter):
logger = logging.getLogger()
logger.setLevel(_default_level)
del logger.handlers[:]
if log_dir and log_file:
pyt_utils.ensure_dir(log_dir)
LogFormatter.log_fout = True
file_handler = logging.FileHandler(log_file, mode='a')
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
stream_handler = logging.StreamHandler()
stream_handler.setFormatter(formatter(datefmt='%d %H:%M:%S'))
stream_handler.setLevel(0)
logger.addHandler(stream_handler)
return logger
def func_per_iteration(self, data, device):
img = data['data']
label = data['label']
hha = data['hha_img']
name = data['fn']
pred = self.sliding_eval_rgbdepth(img, hha, config.eval_crop_size,
config.eval_stride_rate, device)
hist_tmp, labeled_tmp, correct_tmp = hist_info(config.num_classes,
pred, label)
results_dict = {
'hist': hist_tmp,
'labeled': labeled_tmp,
'correct': correct_tmp
}
if self.save_path is not None:
ensure_dir(self.save_path)
ensure_dir(self.save_path + '_color')
fn = name + '.png'
'save colored result'
result_img = Image.fromarray(pred.astype(np.uint8), mode='P')
class_colors = get_class_colors()
palette_list = list(np.array(class_colors).flat)
if len(palette_list) < 768:
palette_list += [0] * (768 - len(palette_list))
result_img.putpalette(palette_list)
result_img.save(os.path.join(self.save_path + '_color', fn))
'save raw result'
cv2.imwrite(os.path.join(self.save_path, fn), pred)
logger.info('Save the image ' + fn)
if self.show_image:
colors = self.dataset.get_class_colors
image = img
clean = np.zeros(label.shape)
comp_img = show_img(colors, config.background, image, clean, label,
pred)
cv2.imshow('comp_image', comp_img)
cv2.waitKey(0)
return results_dict
def csgd_train_main(local_rank,
cfg: BaseConfigByEpoch,
target_deps,
succeeding_strategy,
pacesetter_dict,
centri_strength,
pruned_weights,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
convbuilder=None,
init_hdf5=None,
no_l2_keywords='depth',
use_nesterov=False,
load_weights_keyword=None,
keyword_to_lr_mult=None,
auto_continue=False,
save_hdf5_epochs=10000):
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
clusters_save_path = os.path.join(cfg.output_dir, 'clusters.npy')
with Engine(local_rank=local_rank) as engine:
engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
# ----------------------------- build model ------------------------------
if convbuilder is None:
convbuilder = ConvBuilder(base_config=cfg)
if net is None:
net_fn = get_model_fn(cfg.dataset_name, cfg.network_type)
model = net_fn(cfg, convbuilder)
else:
model = net
model = model.cuda()
# ----------------------------- model done ------------------------------
# ---------------------------- prepare data -------------------------
if train_dataloader is None:
train_data = create_dataset(cfg.dataset_name,
cfg.dataset_subset,
cfg.global_batch_size,
distributed=engine.distributed)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_data = create_dataset(cfg.dataset_name,
'val',
global_batch_size=100,
distributed=False)
engine.echo('NOTE: Data prepared')
engine.echo(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(cfg.global_batch_size, torch.cuda.device_count(),
torch.cuda.memory_allocated()))
# ----------------------------- data done --------------------------------
# ------------------------ parepare optimizer, scheduler, criterion -------
if no_l2_keywords is None:
no_l2_keywords = []
if type(no_l2_keywords) is not list:
no_l2_keywords = [no_l2_keywords]
# For a target parameter, cancel its weight decay in optimizer, because the weight decay will be later encoded in the decay mat
conv_idx = 0
for k, v in model.named_parameters():
if v.dim() != 4:
continue
print('prune {} from {} to {}'.format(conv_idx,
target_deps[conv_idx],
cfg.deps[conv_idx]))
if target_deps[conv_idx] < cfg.deps[conv_idx]:
no_l2_keywords.append(k.replace(KERNEL_KEYWORD, 'conv'))
no_l2_keywords.append(k.replace(KERNEL_KEYWORD, 'bn'))
conv_idx += 1
print('no l2: ', no_l2_keywords)
optimizer = get_optimizer(engine,
cfg,
model,
no_l2_keywords=no_l2_keywords,
use_nesterov=use_nesterov,
keyword_to_lr_mult=keyword_to_lr_mult)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# --------------------------------- done -------------------------------
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer)
if engine.distributed:
torch.cuda.set_device(local_rank)
engine.echo('Distributed training, device {}'.format(local_rank))
model = torch.nn.parallel.DistributedDataParallel(
model,
device_ids=[local_rank],
broadcast_buffers=False,
)
else:
assert torch.cuda.device_count() == 1
engine.echo('Single GPU training')
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights)
if init_hdf5:
engine.load_hdf5(init_hdf5,
load_weights_keyword=load_weights_keyword)
if auto_continue:
assert cfg.init_weights is None
engine.load_checkpoint(get_last_checkpoint(cfg.output_dir))
if show_variables:
engine.show_variables()
# ===================================== prepare the clusters and matrices for C-SGD ==========
kernel_namedvalue_list = engine.get_all_conv_kernel_namedvalue_as_list(
)
if os.path.exists(clusters_save_path):
layer_idx_to_clusters = np.load(clusters_save_path,
allow_pickle=True).item()
else:
if local_rank == 0:
layer_idx_to_clusters = get_layer_idx_to_clusters(
kernel_namedvalue_list=kernel_namedvalue_list,
target_deps=target_deps,
pacesetter_dict=pacesetter_dict)
if pacesetter_dict is not None:
for follower_idx, pacesetter_idx in pacesetter_dict.items(
):
if pacesetter_idx in layer_idx_to_clusters:
layer_idx_to_clusters[
follower_idx] = layer_idx_to_clusters[
pacesetter_idx]
np.save(clusters_save_path, layer_idx_to_clusters)
else:
while not os.path.exists(clusters_save_path):
time.sleep(10)
print('sleep, waiting for process 0 to calculate clusters')
layer_idx_to_clusters = np.load(clusters_save_path,
allow_pickle=True).item()
param_name_to_merge_matrix = generate_merge_matrix_for_kernel(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list)
add_vecs_to_merge_mat_dicts(param_name_to_merge_matrix)
param_name_to_decay_matrix = generate_decay_matrix_for_kernel_and_vecs(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list,
weight_decay=cfg.weight_decay,
weight_decay_bias=cfg.weight_decay_bias,
centri_strength=centri_strength)
print(param_name_to_decay_matrix.keys())
print(param_name_to_merge_matrix.keys())
conv_idx = 0
param_to_clusters = {}
for k, v in model.named_parameters():
if v.dim() != 4:
continue
if conv_idx in layer_idx_to_clusters:
for clsts in layer_idx_to_clusters[conv_idx]:
if len(clsts) > 1:
param_to_clusters[v] = layer_idx_to_clusters[conv_idx]
break
conv_idx += 1
# ============================================================================================
# ------------ do training ---------------------------- #
engine.log("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
last_epoch_done_iters = iteration % iters_per_epoch
if done_epochs == 0 and last_epoch_done_iters == 0:
engine.save_hdf5(os.path.join(cfg.output_dir, 'init.hdf5'))
recorded_train_time = 0
recorded_train_examples = 0
collected_train_loss_sum = 0
collected_train_loss_count = 0
for epoch in range(done_epochs, cfg.max_epochs):
if engine.distributed and hasattr(train_data, 'train_sampler'):
train_data.train_sampler.set_epoch(epoch)
if epoch == done_epochs:
pbar = tqdm(range(iters_per_epoch - last_epoch_done_iters))
else:
pbar = tqdm(range(iters_per_epoch))
if epoch == 0 and local_rank == 0:
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str='Init',
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
for _ in pbar:
start_time = time.time()
data, label = load_cuda_data(train_data,
dataset_name=cfg.dataset_name)
# load_cuda_data(train_dataloader, cfg.dataset_name)
data_time = time.time() - start_time
train_net_time_start = time.time()
acc, acc5, loss = train_one_step(
model,
data,
label,
optimizer,
criterion,
param_name_to_merge_matrix=param_name_to_merge_matrix,
param_name_to_decay_matrix=param_name_to_decay_matrix)
train_net_time_end = time.time()
if iteration > TRAIN_SPEED_START * max_iters and iteration < TRAIN_SPEED_END * max_iters:
recorded_train_examples += cfg.global_batch_size
recorded_train_time += train_net_time_end - train_net_time_start
scheduler.step()
for module in model.modules():
if hasattr(module, 'set_cur_iter'):
module.set_cur_iter(iteration)
if iteration % cfg.tb_iter_period == 0 and engine.world_rank == 0:
for tag, value in zip(
tb_tags,
[acc.item(), acc5.item(),
loss.item()]):
tb_writer.add_scalars(tag, {'Train': value}, iteration)
deviation_sum = 0
for param, clusters in param_to_clusters.items():
pvalue = param.detach().cpu().numpy()
for cl in clusters:
if len(cl) == 1:
continue
selected = pvalue[cl, :, :, :]
mean_kernel = np.mean(selected,
axis=0,
keepdims=True)
diff = selected - mean_kernel
deviation_sum += np.sum(diff**2)
tb_writer.add_scalars('deviation_sum',
{'Train': deviation_sum}, iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
if epoch >= cfg.max_epochs - COLLECT_TRAIN_LOSS_EPOCHS:
collected_train_loss_sum += loss.item()
collected_train_loss_count += 1
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
iteration += 1
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed and
engine.world_rank == 0):
engine.save_and_link_checkpoint(cfg.output_dir)
if iteration >= max_iters:
break
# do something after an epoch?
engine.update_iteration(iteration)
engine.save_latest_ckpt(cfg.output_dir)
if (epoch + 1) % save_hdf5_epochs == 0:
engine.save_hdf5(
os.path.join(cfg.output_dir,
'epoch-{}.hdf5'.format(epoch)))
if local_rank == 0 and \
cfg.val_epoch_period > 0 and (epoch >= cfg.max_epochs - 10 or epoch % cfg.val_epoch_period == 0):
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str=discrip_str,
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
if iteration >= max_iters:
break
# do something after the training
if recorded_train_time > 0:
exp_per_sec = recorded_train_examples / recorded_train_time
else:
exp_per_sec = 0
engine.log(
'TRAIN speed: from {} to {} iterations, batch_size={}, examples={}, total_net_time={:.4f}, examples/sec={}'
.format(int(TRAIN_SPEED_START * max_iters),
int(TRAIN_SPEED_END * max_iters), cfg.global_batch_size,
recorded_train_examples, recorded_train_time, exp_per_sec))
if cfg.save_weights:
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(
cfg.save_weights))
engine.save_hdf5(os.path.join(cfg.output_dir, 'finish.hdf5'))
if collected_train_loss_count > 0:
engine.log(
'TRAIN LOSS collected over last {} epochs: {:.6f}'.format(
COLLECT_TRAIN_LOSS_EPOCHS,
collected_train_loss_sum / collected_train_loss_count))
if local_rank == 0:
csgd_prune_and_save(engine=engine,
layer_idx_to_clusters=layer_idx_to_clusters,
save_file=pruned_weights,
succeeding_strategy=succeeding_strategy,
new_deps=target_deps)
def ding_train(cfg:BaseConfigByEpoch, net=None, train_dataloader=None, val_dataloader=None, show_variables=False, convbuilder=None, beginning_msg=None,
init_hdf5=None, no_l2_keywords=None, gradient_mask=None, use_nesterov=False):
# LOCAL_RANK = 0
#
# num_gpus = int(os.environ["WORLD_SIZE"]) if "WORLD_SIZE" in os.environ else 1
# is_distributed = num_gpus > 1
#
# if is_distributed:
# torch.cuda.set_device(LOCAL_RANK)
# torch.distributed.init_process_group(
# backend="nccl", init_method="env://"
# )
# synchronize()
#
# torch.backends.cudnn.benchmark = True
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
with Engine() as engine:
is_main_process = (engine.world_rank == 0) #TODO correct?
logger = engine.setup_log(
name='train', log_dir=cfg.output_dir, file_name='log.txt')
# -- typical model components model, opt, scheduler, dataloder --#
if net is None:
net = get_model_fn(cfg.dataset_name, cfg.network_type)
if convbuilder is None:
convbuilder = ConvBuilder(base_config=cfg)
model = net(cfg, convbuilder).cuda()
if train_dataloader is None:
train_dataloader = create_dataset(cfg.dataset_name, cfg.dataset_subset, cfg.global_batch_size)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_dataloader = create_dataset(cfg.dataset_name, 'val', batch_size=100) #TODO 100?
print('NOTE: Data prepared')
print('NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'.format(cfg.global_batch_size, torch.cuda.device_count(), torch.cuda.memory_allocated()))
# device = torch.device(cfg.device)
# model.to(device)
# model.cuda()
if no_l2_keywords is None:
no_l2_keywords = []
optimizer = get_optimizer(cfg, model, no_l2_keywords=no_l2_keywords, use_nesterov=use_nesterov)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# model, optimizer = amp.initialize(model, optimizer, opt_level="O0")
engine.register_state(
scheduler=scheduler, model=model, optimizer=optimizer)
if engine.distributed:
print('Distributed training, engine.world_rank={}'.format(engine.world_rank))
model = torch.nn.parallel.DistributedDataParallel(
model, device_ids=[engine.world_rank],
broadcast_buffers=False, )
# model = DistributedDataParallel(model, delay_allreduce=True)
elif torch.cuda.device_count() > 1:
print('Single machine multiple GPU training')
model = torch.nn.parallel.DataParallel(model)
# for k, v in model.named_parameters():
# if v.dim() in [2, 4]:
# torch.nn.init.xavier_normal_(v)
# print('init {} as xavier_normal'.format(k))
# if 'bias' in k and 'bn' not in k.lower():
# torch.nn.init.zeros_(v)
# print('init {} as zero'.format(k))
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights, is_restore=True)
if init_hdf5:
engine.load_hdf5(init_hdf5)
if show_variables:
engine.show_variables()
# ------------ do training ---------------------------- #
if beginning_msg:
engine.log(beginning_msg)
logger.info("\n\nStart training with pytorch version {}".format(torch.__version__))
iteration = engine.state.iteration
# done_epochs = iteration // num_train_examples_per_epoch(cfg.dataset_name)
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
engine.save_hdf5(os.path.join(cfg.output_dir, 'init.hdf5'))
# summary(model=model, input_size=(224, 224) if cfg.dataset_name == 'imagenet' else (32, 32), batch_size=cfg.global_batch_size)
recorded_train_time = 0
recorded_train_examples = 0
if gradient_mask is not None:
gradient_mask_tensor = {}
for name, value in gradient_mask.items():
gradient_mask_tensor[name] = torch.Tensor(value).cuda()
else:
gradient_mask_tensor = None
for epoch in range(done_epochs, cfg.max_epochs):
pbar = tqdm(range(iters_per_epoch))
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
if cfg.val_epoch_period > 0 and epoch % cfg.val_epoch_period == 0:
model.eval()
val_iters = 500 if cfg.dataset_name == 'imagenet' else 100 # use batch_size=100 for val on ImagenNet and CIFAR
eval_dict, _ = run_eval(val_dataloader, val_iters, model, criterion, discrip_str, dataset_name=cfg.dataset_name)
val_top1_value = eval_dict['top1'].item()
val_top5_value = eval_dict['top5'].item()
val_loss_value = eval_dict['loss'].item()
for tag, value in zip(tb_tags, [val_top1_value, val_top5_value, val_loss_value]):
tb_writer.add_scalars(tag, {'Val': value}, iteration)
engine.log('validate at epoch {}, top1={:.5f}, top5={:.5f}, loss={:.6f}'.format(epoch, val_top1_value, val_top5_value, val_loss_value))
model.train()
for _ in pbar:
start_time = time.time()
data, label = load_cuda_data(train_dataloader, cfg.dataset_name)
data_time = time.time() - start_time
if_accum_grad = ((iteration % cfg.grad_accum_iters) != 0)
train_net_time_start = time.time()
acc, acc5, loss = train_one_step(model, data, label, optimizer, criterion, if_accum_grad, gradient_mask_tensor=gradient_mask_tensor)
train_net_time_end = time.time()
if iteration > TRAIN_SPEED_START * max_iters and iteration < TRAIN_SPEED_END * max_iters:
recorded_train_examples += cfg.global_batch_size
recorded_train_time += train_net_time_end - train_net_time_start
scheduler.step()
if iteration % cfg.tb_iter_period == 0 and is_main_process:
for tag, value in zip(tb_tags, [acc.item(), acc5.item(), loss.item()]):
tb_writer.add_scalars(tag, {'Train': value}, iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed and is_main_process):
engine.save_and_link_checkpoint(cfg.output_dir)
iteration += 1
if iteration >= max_iters:
break
# do something after an epoch?
if iteration >= max_iters:
break
# do something after the training
if recorded_train_time > 0:
exp_per_sec = recorded_train_examples / recorded_train_time
else:
exp_per_sec = 0
engine.log(
'TRAIN speed: from {} to {} iterations, batch_size={}, examples={}, total_net_time={:.4f}, examples/sec={}'
.format(int(TRAIN_SPEED_START * max_iters), int(TRAIN_SPEED_END * max_iters), cfg.global_batch_size,
recorded_train_examples, recorded_train_time, exp_per_sec))
if cfg.save_weights:
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(cfg.save_weights))
engine.save_hdf5(os.path.join(cfg.output_dir, 'finish.hdf5'))
def csgd_train_and_prune(cfg: BaseConfigByEpoch,
target_deps,
centri_strength,
pacesetter_dict,
succeeding_strategy,
pruned_weights,
extra_cfg,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
beginning_msg=None,
init_weights=None,
no_l2_keywords=None,
use_nesterov=False,
tensorflow_style_init=False,
iter=None):
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
clusters_save_path = os.path.join(cfg.output_dir, 'clusters.npy')
print("cluster save path:{}".format(clusters_save_path))
config = extra_cfg
with Engine() as engine:
is_main_process = (engine.world_rank == 0) #TODO correct?
logger = engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
saveName = "%s-%s.yaml" % (config['note'], config['dataset'])
modelName = config['modelName']
os.environ['CUDA_VISIBLE_DEVICES'] = config['gpu_available']
device_ids = range(config['gpu_num'])
trainSet = GoProDataset(sharp_root=config['train_sharp'],
blur_root=config['train_blur'],
resize_size=config['resize_size'],
patch_size=config['crop_size'],
phase='train')
testSet = GoProDataset(sharp_root=config['test_sharp'],
blur_root=config['test_blur'],
resize_size=config['resize_size'],
patch_size=config['crop_size'],
phase='test')
train_loader = DataLoader(trainSet,
batch_size=config['batchsize'],
shuffle=True,
num_workers=4,
drop_last=True,
pin_memory=True)
test_loader = DataLoader(testSet,
batch_size=1,
shuffle=False,
num_workers=1,
drop_last=False,
pin_memory=True)
print('NOTE: Data prepared')
print(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(config['batchsize'], torch.cuda.device_count(),
torch.cuda.memory_allocated()))
model = net
optimizer = get_optimizer(cfg, model, use_nesterov=use_nesterov)
scheduler = lr_scheduler.MultiStepLR(optimizer,
milestones=config['step'],
gamma=0.5) # learning rates
criterion = get_criterion(cfg).cuda()
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer,
cfg=cfg)
model = torch.nn.DataParallel(model.cuda(), device_ids=device_ids)
# load weight of last prune iteration or the not pruned model
if init_weights:
engine.load_pth(init_weights)
# for unet the last outconv will not be pruned
kernel_namedvalue_list = engine.get_all_conv_kernel_namedvalue_as_list(
remove='out')
# cluster filters
if os.path.exists(clusters_save_path):
layer_idx_to_clusters = np.load(clusters_save_path,
allow_pickle=True).item()
print("cluster exist, load from {}".format(clusters_save_path))
else:
layer_idx_to_clusters = get_layer_idx_to_clusters(
kernel_namedvalue_list=kernel_namedvalue_list,
target_deps=target_deps,
pacesetter_dict=pacesetter_dict)
if pacesetter_dict is not None:
for follower_idx, pacesetter_idx in pacesetter_dict.items():
if pacesetter_idx in layer_idx_to_clusters:
layer_idx_to_clusters[
follower_idx] = layer_idx_to_clusters[
pacesetter_idx]
# print(layer_idx_to_clusters)
np.save(clusters_save_path, layer_idx_to_clusters)
csgd_save_file = os.path.join(cfg.output_dir, 'finish.pth')
# if this prune iter has a trained model, then load it
if os.path.exists(csgd_save_file):
engine.load_pth(csgd_save_file)
else:
param_name_to_merge_matrix = generate_merge_matrix_for_kernel(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list)
param_name_to_decay_matrix = generate_decay_matrix_for_kernel_and_vecs(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list,
weight_decay=cfg.weight_decay,
centri_strength=centri_strength)
# if pacesetter_dict is not None:
# for follower_idx, pacesetter_idx in pacesetter_dict.items():
# follower_kernel_name = kernel_namedvalue_list[follower_idx].name
# pacesetter_kernel_name = kernel_namedvalue_list[follower_idx].name
# if pacesetter_kernel_name in param_name_to_merge_matrix:
# param_name_to_merge_matrix[follower_kernel_name] = param_name_to_merge_matrix[
# pacesetter_kernel_name]
# param_name_to_decay_matrix[follower_kernel_name] = param_name_to_decay_matrix[
# pacesetter_kernel_name]
# add 2 para of bn and conv.bias to mat dicts to enable the c-sgd update rule
add_vecs_to_mat_dicts(param_name_to_merge_matrix)
if show_variables:
engine.show_variables()
if beginning_msg:
engine.log(beginning_msg)
logger.info("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
startEpoch = config['start_epoch']
max_epochs = config['max_epochs']
engine.save_pth(os.path.join(cfg.output_dir, 'init.pth'))
viz = Visdom(env=saveName)
bestPSNR = config['bestPSNR']
itr = '' if iter is None else str(iter)
for epoch in range(startEpoch, max_epochs):
# eval
if epoch % config['save_epoch'] == 0:
with torch.no_grad():
model.eval()
avg_PSNR = 0
idx = 0
for test_data in test_loader:
idx += 1
test_data['L'] = test_data['L'].cuda()
sharp = model(test_data['L'])
sharp = sharp.detach().float().cpu()
sharp = util.tensor2uint(sharp)
test_data['H'] = util.tensor2uint(test_data['H'])
current_psnr = util.calculate_psnr(sharp,
test_data['H'],
border=0)
avg_PSNR += current_psnr
if idx % 100 == 0:
print("epoch {}: tested {}".format(epoch, idx))
avg_PSNR = avg_PSNR / idx
print("total PSNR : {:<4.2f}".format(avg_PSNR))
viz.line(X=[epoch],
Y=[avg_PSNR],
win='testPSNR-' + itr,
opts=dict(title='psnr',
legend=['valid_psnr']),
update='append')
if avg_PSNR > bestPSNR:
bestPSNR = avg_PSNR
save_path = os.path.join(cfg.output_dir,
'finish.pth')
engine.save_pth(save_path)
# train
avg_loss = 0.0
idx = 0
model.train()
for i, train_data in enumerate(train_loader):
idx += 1
train_data['L'] = train_data['L'].cuda()
train_data['H'] = train_data['H'].cuda()
optimizer.zero_grad()
loss = train_one_step(model, train_data['L'], train_data['H'], criterion,\
optimizer,param_name_to_merge_matrix,\
param_name_to_decay_matrix)
avg_loss += loss.item()
if idx % 100 == 0:
print("epoch {}: trained {}".format(epoch, idx))
scheduler.step()
avg_loss = avg_loss / idx
print("epoch {}: total loss : {:<4.2f}, lr : {}".format(
epoch, avg_loss,
scheduler.get_lr()[0]))
viz.line(X=[epoch],
Y=[avg_loss],
win='trainMSELoss-' + itr,
opts=dict(title='mse', legend=['train_mse']),
update='append')
# engine.save_pth(os.path.join(cfg.output_dir, 'finish.pth'))
csgd_prune_and_save(engine=engine,
layer_idx_to_clusters=layer_idx_to_clusters,
save_file=pruned_weights,
succeeding_strategy=succeeding_strategy,
new_deps=target_deps)
def link_tb(self, source, target):
ensure_dir(source)
ensure_dir(target)
link_file(source, target)
def train_main(local_rank,
cfg: BaseConfigByEpoch,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
convbuilder=None,
init_hdf5=None,
no_l2_keywords='depth',
gradient_mask=None,
use_nesterov=False,
tensorflow_style_init=False,
load_weights_keyword=None,
keyword_to_lr_mult=None,
auto_continue=False,
lasso_keyword_to_strength=None,
save_hdf5_epochs=10000):
if no_l2_keywords is None:
no_l2_keywords = []
if type(no_l2_keywords) is not list:
no_l2_keywords = [no_l2_keywords]
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
with Engine(local_rank=local_rank) as engine:
engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
# ----------------------------- build model ------------------------------
if convbuilder is None:
convbuilder = ConvBuilder(base_config=cfg)
if net is None:
net_fn = get_model_fn(cfg.dataset_name, cfg.network_type)
model = net_fn(cfg, convbuilder)
else:
model = net
model = model.cuda()
# ----------------------------- model done ------------------------------
# ---------------------------- prepare data -------------------------
if train_dataloader is None:
train_data = create_dataset(cfg.dataset_name,
cfg.dataset_subset,
cfg.global_batch_size,
distributed=engine.distributed)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_data = create_dataset(cfg.dataset_name,
'val',
global_batch_size=100,
distributed=False)
engine.echo('NOTE: Data prepared')
engine.echo(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(cfg.global_batch_size, torch.cuda.device_count(),
torch.cuda.memory_allocated()))
# ----------------------------- data done --------------------------------
# ------------------------ parepare optimizer, scheduler, criterion -------
optimizer = get_optimizer(engine,
cfg,
model,
no_l2_keywords=no_l2_keywords,
use_nesterov=use_nesterov,
keyword_to_lr_mult=keyword_to_lr_mult)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# --------------------------------- done -------------------------------
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer)
if engine.distributed:
torch.cuda.set_device(local_rank)
engine.echo('Distributed training, device {}'.format(local_rank))
model = torch.nn.parallel.DistributedDataParallel(
model,
device_ids=[local_rank],
broadcast_buffers=False,
)
else:
assert torch.cuda.device_count() == 1
engine.echo('Single GPU training')
if tensorflow_style_init:
init_as_tensorflow(model)
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights)
if init_hdf5:
engine.load_hdf5(init_hdf5,
load_weights_keyword=load_weights_keyword)
if auto_continue:
assert cfg.init_weights is None
engine.load_checkpoint(get_last_checkpoint(cfg.output_dir))
if show_variables:
engine.show_variables()
# ------------ do training ---------------------------- #
engine.log("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
last_epoch_done_iters = iteration % iters_per_epoch
if done_epochs == 0 and last_epoch_done_iters == 0:
engine.save_hdf5(os.path.join(cfg.output_dir, 'init.hdf5'))
recorded_train_time = 0
recorded_train_examples = 0
collected_train_loss_sum = 0
collected_train_loss_count = 0
if gradient_mask is not None:
gradient_mask_tensor = {}
for name, value in gradient_mask.items():
gradient_mask_tensor[name] = torch.Tensor(value).cuda()
else:
gradient_mask_tensor = None
for epoch in range(done_epochs, cfg.max_epochs):
if engine.distributed and hasattr(train_data, 'train_sampler'):
train_data.train_sampler.set_epoch(epoch)
if epoch == done_epochs:
pbar = tqdm(range(iters_per_epoch - last_epoch_done_iters))
else:
pbar = tqdm(range(iters_per_epoch))
if epoch == 0 and local_rank == 0:
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str='Init',
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
for _ in pbar:
start_time = time.time()
data, label = load_cuda_data(train_data,
dataset_name=cfg.dataset_name)
# load_cuda_data(train_dataloader, cfg.dataset_name)
data_time = time.time() - start_time
if_accum_grad = ((iteration % cfg.grad_accum_iters) != 0)
train_net_time_start = time.time()
acc, acc5, loss = train_one_step(
model,
data,
label,
optimizer,
criterion,
if_accum_grad,
gradient_mask_tensor=gradient_mask_tensor,
lasso_keyword_to_strength=lasso_keyword_to_strength)
train_net_time_end = time.time()
if iteration > TRAIN_SPEED_START * max_iters and iteration < TRAIN_SPEED_END * max_iters:
recorded_train_examples += cfg.global_batch_size
recorded_train_time += train_net_time_end - train_net_time_start
scheduler.step()
for module in model.modules():
if hasattr(module, 'set_cur_iter'):
module.set_cur_iter(iteration)
if iteration % cfg.tb_iter_period == 0 and engine.world_rank == 0:
for tag, value in zip(
tb_tags,
[acc.item(), acc5.item(),
loss.item()]):
tb_writer.add_scalars(tag, {'Train': value}, iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
if epoch >= cfg.max_epochs - COLLECT_TRAIN_LOSS_EPOCHS:
collected_train_loss_sum += loss.item()
collected_train_loss_count += 1
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
iteration += 1
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed and
engine.world_rank == 0):
engine.save_and_link_checkpoint(cfg.output_dir)
if iteration >= max_iters:
break
# do something after an epoch?
engine.update_iteration(iteration)
engine.save_latest_ckpt(cfg.output_dir)
if (epoch + 1) % save_hdf5_epochs == 0:
engine.save_hdf5(
os.path.join(cfg.output_dir,
'epoch-{}.hdf5'.format(epoch)))
if local_rank == 0 and \
cfg.val_epoch_period > 0 and (epoch >= cfg.max_epochs - 10 or epoch % cfg.val_epoch_period == 0):
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str=discrip_str,
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
if iteration >= max_iters:
break
# do something after the training
if recorded_train_time > 0:
exp_per_sec = recorded_train_examples / recorded_train_time
else:
exp_per_sec = 0
engine.log(
'TRAIN speed: from {} to {} iterations, batch_size={}, examples={}, total_net_time={:.4f}, examples/sec={}'
.format(int(TRAIN_SPEED_START * max_iters),
int(TRAIN_SPEED_END * max_iters), cfg.global_batch_size,
recorded_train_examples, recorded_train_time, exp_per_sec))
if cfg.save_weights:
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(
cfg.save_weights))
engine.save_hdf5(os.path.join(cfg.output_dir, 'finish.hdf5'))
if collected_train_loss_count > 0:
engine.log(
'TRAIN LOSS collected over last {} epochs: {:.6f}'.format(
COLLECT_TRAIN_LOSS_EPOCHS,
collected_train_loss_sum / collected_train_loss_count))
def csgd_train_and_prune(cfg: BaseConfigByEpoch,
target_deps,
centri_strength,
pacesetter_dict,
succeeding_strategy,
pruned_weights,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
convbuilder=None,
beginning_msg=None,
init_hdf5=None,
no_l2_keywords=None,
use_nesterov=False,
tensorflow_style_init=False):
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
clusters_save_path = os.path.join(cfg.output_dir, 'clusters.npy')
with Engine() as engine:
is_main_process = (engine.world_rank == 0) #TODO correct?
logger = engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
# -- typical model components model, opt, scheduler, dataloder --#
if net is None:
net = get_model_fn(cfg.dataset_name, cfg.network_type)
if convbuilder is None:
convbuilder = ConvBuilder(base_config=cfg)
model = net(cfg, convbuilder).cuda()
if train_dataloader is None:
train_dataloader = create_dataset(cfg.dataset_name,
cfg.dataset_subset,
cfg.global_batch_size)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_dataloader = create_dataset(cfg.dataset_name,
'val',
batch_size=100) #TODO 100?
print('NOTE: Data prepared')
print(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(cfg.global_batch_size, torch.cuda.device_count(),
torch.cuda.memory_allocated()))
optimizer = get_optimizer(cfg, model, use_nesterov=use_nesterov)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# model, optimizer = amp.initialize(model, optimizer, opt_level="O0")
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer,
cfg=cfg)
if engine.distributed:
print('Distributed training, engine.world_rank={}'.format(
engine.world_rank))
model = torch.nn.parallel.DistributedDataParallel(
model,
device_ids=[engine.world_rank],
broadcast_buffers=False,
)
# model = DistributedDataParallel(model, delay_allreduce=True)
elif torch.cuda.device_count() > 1:
print('Single machine multiple GPU training')
model = torch.nn.parallel.DataParallel(model)
if tensorflow_style_init:
for k, v in model.named_parameters():
if v.dim() in [2, 4]:
torch.nn.init.xavier_uniform_(v)
print('init {} as xavier_uniform'.format(k))
if 'bias' in k and 'bn' not in k.lower():
torch.nn.init.zeros_(v)
print('init {} as zero'.format(k))
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights)
if init_hdf5:
engine.load_hdf5(init_hdf5)
kernel_namedvalue_list = engine.get_all_conv_kernel_namedvalue_as_list(
)
if os.path.exists(clusters_save_path):
layer_idx_to_clusters = np.load(clusters_save_path).item()
else:
layer_idx_to_clusters = get_layer_idx_to_clusters(
kernel_namedvalue_list=kernel_namedvalue_list,
target_deps=target_deps,
pacesetter_dict=pacesetter_dict)
if pacesetter_dict is not None:
for follower_idx, pacesetter_idx in pacesetter_dict.items():
if pacesetter_idx in layer_idx_to_clusters:
layer_idx_to_clusters[
follower_idx] = layer_idx_to_clusters[
pacesetter_idx]
np.save(clusters_save_path, layer_idx_to_clusters)
csgd_save_file = os.path.join(cfg.output_dir, 'finish.hdf5')
if os.path.exists(csgd_save_file):
engine.load_hdf5(csgd_save_file)
else:
param_name_to_merge_matrix = generate_merge_matrix_for_kernel(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list)
param_name_to_decay_matrix = generate_decay_matrix_for_kernel_and_vecs(
deps=cfg.deps,
layer_idx_to_clusters=layer_idx_to_clusters,
kernel_namedvalue_list=kernel_namedvalue_list,
weight_decay=cfg.weight_decay,
centri_strength=centri_strength)
# if pacesetter_dict is not None:
# for follower_idx, pacesetter_idx in pacesetter_dict.items():
# follower_kernel_name = kernel_namedvalue_list[follower_idx].name
# pacesetter_kernel_name = kernel_namedvalue_list[follower_idx].name
# if pacesetter_kernel_name in param_name_to_merge_matrix:
# param_name_to_merge_matrix[follower_kernel_name] = param_name_to_merge_matrix[
# pacesetter_kernel_name]
# param_name_to_decay_matrix[follower_kernel_name] = param_name_to_decay_matrix[
# pacesetter_kernel_name]
add_vecs_to_mat_dicts(param_name_to_merge_matrix)
if show_variables:
engine.show_variables()
if beginning_msg:
engine.log(beginning_msg)
logger.info("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
# done_epochs = iteration // num_train_examples_per_epoch(cfg.dataset_name)
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
engine.save_hdf5(os.path.join(cfg.output_dir, 'init.hdf5'))
recorded_train_time = 0
recorded_train_examples = 0
for epoch in range(done_epochs, cfg.max_epochs):
pbar = tqdm(range(iters_per_epoch))
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
if cfg.val_epoch_period > 0 and epoch % cfg.val_epoch_period == 0:
model.eval()
val_iters = 500 if cfg.dataset_name == 'imagenet' else 100 # use batch_size=100 for val on ImagenNet and CIFAR
eval_dict, _ = run_eval(val_dataloader,
val_iters,
model,
criterion,
discrip_str,
dataset_name=cfg.dataset_name)
val_top1_value = eval_dict['top1'].item()
val_top5_value = eval_dict['top5'].item()
val_loss_value = eval_dict['loss'].item()
for tag, value in zip(
tb_tags,
[val_top1_value, val_top5_value, val_loss_value]):
tb_writer.add_scalars(tag, {'Val': value}, iteration)
engine.log(
'validate at epoch {}, top1={:.5f}, top5={:.5f}, loss={:.6f}'
.format(epoch, val_top1_value, val_top5_value,
val_loss_value))
model.train()
for _ in pbar:
start_time = time.time()
data, label = load_cuda_data(train_dataloader,
cfg.dataset_name)
data_time = time.time() - start_time
train_net_time_start = time.time()
acc, acc5, loss = train_one_step(
model,
data,
label,
optimizer,
criterion,
param_name_to_merge_matrix=param_name_to_merge_matrix,
param_name_to_decay_matrix=param_name_to_decay_matrix)
train_net_time_end = time.time()
if iteration > TRAIN_SPEED_START * max_iters and iteration < TRAIN_SPEED_END * max_iters:
recorded_train_examples += cfg.global_batch_size
recorded_train_time += train_net_time_end - train_net_time_start
scheduler.step()
if iteration % cfg.tb_iter_period == 0 and is_main_process:
for tag, value in zip(
tb_tags,
[acc.item(), acc5.item(),
loss.item()]):
tb_writer.add_scalars(tag, {'Train': value},
iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed
and is_main_process):
engine.save_and_link_checkpoint(cfg.output_dir)
iteration += 1
if iteration >= max_iters:
break
# do something after an epoch?
if iteration >= max_iters:
break
# do something after the training
if recorded_train_time > 0:
exp_per_sec = recorded_train_examples / recorded_train_time
else:
exp_per_sec = 0
engine.log(
'TRAIN speed: from {} to {} iterations, batch_size={}, examples={}, total_net_time={:.4f}, examples/sec={}'
.format(int(TRAIN_SPEED_START * max_iters),
int(TRAIN_SPEED_END * max_iters),
cfg.global_batch_size, recorded_train_examples,
recorded_train_time, exp_per_sec))
if cfg.save_weights:
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(
cfg.save_weights))
engine.save_hdf5(os.path.join(cfg.output_dir, 'finish.hdf5'))
csgd_prune_and_save(engine=engine,
layer_idx_to_clusters=layer_idx_to_clusters,
save_file=pruned_weights,
succeeding_strategy=succeeding_strategy,
new_deps=target_deps)
def ding_train(cfg: BaseConfigByEpoch,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
convbuilder=None):
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
with Engine(cfg) as engine:
is_main_process = (engine.world_rank == 0) #TODO correct?
logger = engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
# -- typical model components model, opt, scheduler, dataloder --#
if net is None:
net = get_model_fn(cfg.dataset_name, cfg.network_type)
if convbuilder is None:
convbuilder = ConvBuilder()
model = net(cfg, convbuilder).cuda()
if train_dataloader is None:
train_dataloader = create_dataset(cfg.dataset_name,
cfg.dataset_subset,
cfg.global_batch_size)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_dataloader = create_dataset(cfg.dataset_name,
'val',
batch_size=100) #TODO 100?
print('NOTE: Data prepared')
print(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(cfg.global_batch_size, torch.cuda.device_count(),
torch.cuda.memory_allocated()))
# device = torch.device(cfg.device)
# model.to(device)
# model.cuda()
optimizer = get_optimizer(cfg, model)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# model, optimizer = amp.initialize(model, optimizer, opt_level="O0")
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer)
if engine.distributed:
print('Distributed training, engine.world_rank={}'.format(
engine.world_rank))
model = torch.nn.parallel.DistributedDataParallel(
model,
device_ids=[engine.world_rank],
broadcast_buffers=False,
)
# model = DistributedDataParallel(model, delay_allreduce=True)
if engine.continue_state_object:
engine.restore_checkpoint()
else:
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights, is_restore=False)
if show_variables:
engine.show_variables()
# ------------ do training ---------------------------- #
logger.info("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
# done_epochs = iteration // num_train_examples_per_epoch(cfg.dataset_name)
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
for epoch in range(done_epochs, cfg.max_epochs):
pbar = tqdm(range(iters_per_epoch))
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
if cfg.val_epoch_period > 0 and epoch % cfg.val_epoch_period == 0:
model.eval()
val_iters = 500 if cfg.dataset_name == 'imagenet' else 100 # use batch_size=100 for val on ImagenNet and CIFAR
eval_dict = run_eval(val_dataloader,
val_iters,
model,
criterion,
discrip_str,
dataset_name=cfg.dataset_name)
val_top1_value = eval_dict['top1'].item()
val_top5_value = eval_dict['top5'].item()
val_loss_value = eval_dict['loss'].item()
for tag, value in zip(
tb_tags,
[val_top1_value, val_top5_value, val_loss_value]):
tb_writer.add_scalars(tag, {'Val': value}, iteration)
engine.log(
'validate at epoch {}, top1={:.5f}, top5={:.5f}, loss={:.6f}'
.format(epoch, val_top1_value, val_top5_value,
val_loss_value))
model.train()
for _ in pbar:
scheduler.step()
start_time = time.time()
data, label = load_cuda_data(train_dataloader,
cfg.dataset_name)
data_time = time.time() - start_time
if_accum_grad = ((iteration % cfg.grad_accum_iters) != 0)
acc, acc5, loss = train_one_step(model, data, label, optimizer,
criterion, if_accum_grad)
if iteration % cfg.tb_iter_period == 0 and is_main_process:
for tag, value in zip(
tb_tags,
[acc.item(), acc5.item(),
loss.item()]):
tb_writer.add_scalars(tag, {'Train': value}, iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed
and is_main_process):
engine.save_and_link_checkpoint(cfg.output_dir)
iteration += 1
if iteration >= max_iters:
break
# do something after an epoch?
if iteration >= max_iters:
break
# do something after the training
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(cfg.save_weights))
def aofp_train_main(local_rank,
target_layers,
succ_strategy,
warmup_iterations,
aofp_batches_per_half,
flops_func,
cfg: BaseConfigByEpoch,
net=None,
train_dataloader=None,
val_dataloader=None,
show_variables=False,
convbuilder=None,
init_hdf5=None,
no_l2_keywords='depth',
gradient_mask=None,
use_nesterov=False,
tensorflow_style_init=False,
keyword_to_lr_mult=None,
auto_continue=False,
lasso_keyword_to_strength=None,
save_hdf5_epochs=10000,
remain_flops_ratio=0):
if no_l2_keywords is None:
no_l2_keywords = []
if type(no_l2_keywords) is not list:
no_l2_keywords = [no_l2_keywords]
ensure_dir(cfg.output_dir)
ensure_dir(cfg.tb_dir)
with Engine(local_rank=local_rank) as engine:
engine.setup_log(name='train',
log_dir=cfg.output_dir,
file_name='log.txt')
# ----------------------------- build model ------------------------------
if convbuilder is None:
convbuilder = ConvBuilder(base_config=cfg)
if net is None:
net_fn = get_model_fn(cfg.dataset_name, cfg.network_type)
model = net_fn(cfg, convbuilder)
else:
model = net
model = model.cuda()
# ----------------------------- model done ------------------------------
# ---------------------------- prepare data -------------------------
if train_dataloader is None:
train_data = create_dataset(cfg.dataset_name,
cfg.dataset_subset,
cfg.global_batch_size,
distributed=engine.distributed)
if cfg.val_epoch_period > 0 and val_dataloader is None:
val_data = create_dataset(cfg.dataset_name,
'val',
global_batch_size=100,
distributed=False)
engine.echo('NOTE: Data prepared')
engine.echo(
'NOTE: We have global_batch_size={} on {} GPUs, the allocated GPU memory is {}'
.format(cfg.global_batch_size, torch.cuda.device_count(),
torch.cuda.memory_allocated()))
# ----------------------------- data done --------------------------------
# ------------------------ parepare optimizer, scheduler, criterion -------
optimizer = get_optimizer(engine,
cfg,
model,
no_l2_keywords=no_l2_keywords,
use_nesterov=use_nesterov,
keyword_to_lr_mult=keyword_to_lr_mult)
scheduler = get_lr_scheduler(cfg, optimizer)
criterion = get_criterion(cfg).cuda()
# --------------------------------- done -------------------------------
engine.register_state(scheduler=scheduler,
model=model,
optimizer=optimizer)
if engine.distributed:
torch.cuda.set_device(local_rank)
engine.echo('Distributed training, device {}'.format(local_rank))
model = torch.nn.parallel.DistributedDataParallel(
model,
device_ids=[local_rank],
broadcast_buffers=False,
)
else:
assert torch.cuda.device_count() == 1
engine.echo('Single GPU training')
if tensorflow_style_init:
init_as_tensorflow(model)
if cfg.init_weights:
engine.load_checkpoint(cfg.init_weights)
if init_hdf5:
engine.load_part('base_path.', init_hdf5)
if auto_continue:
assert cfg.init_weights is None
engine.load_checkpoint(get_last_checkpoint(cfg.output_dir))
if show_variables:
engine.show_variables()
# ------------ do training ---------------------------- #
engine.log("\n\nStart training with pytorch version {}".format(
torch.__version__))
iteration = engine.state.iteration
iters_per_epoch = num_iters_per_epoch(cfg)
max_iters = iters_per_epoch * cfg.max_epochs
tb_writer = SummaryWriter(cfg.tb_dir)
tb_tags = ['Top1-Acc', 'Top5-Acc', 'Loss']
model.train()
done_epochs = iteration // iters_per_epoch
last_epoch_done_iters = iteration % iters_per_epoch
if done_epochs == 0 and last_epoch_done_iters == 0:
engine.save_hdf5(os.path.join(cfg.output_dir, 'init.hdf5'))
recorded_train_time = 0
recorded_train_examples = 0
collected_train_loss_sum = 0
collected_train_loss_count = 0
if gradient_mask is not None:
gradient_mask_tensor = {}
for name, value in gradient_mask.items():
gradient_mask_tensor[name] = torch.Tensor(value).cuda()
else:
gradient_mask_tensor = None
######################### aofp
_init_interval = aofp_batches_per_half // len(target_layers)
layer_to_start_iter = {
i: (_init_interval * i + warmup_iterations)
for i in target_layers
}
print(
'the initial layer_to_start_iter = {}'.format(layer_to_start_iter))
# 0. get all the AOFPLayers
layer_idx_to_module = {}
for submodule in model.modules():
if hasattr(submodule, 'score_mask') or hasattr(
submodule, 't_value'):
layer_idx_to_module[submodule.conv_idx] = submodule
print(layer_idx_to_module)
######################################
for epoch in range(done_epochs, cfg.max_epochs):
if engine.distributed and hasattr(train_data, 'train_sampler'):
train_data.train_sampler.set_epoch(epoch)
if epoch == done_epochs:
pbar = tqdm(range(iters_per_epoch - last_epoch_done_iters))
else:
pbar = tqdm(range(iters_per_epoch))
if epoch == 0 and local_rank == 0:
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str='Init',
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
top1 = AvgMeter()
top5 = AvgMeter()
losses = AvgMeter()
discrip_str = 'Epoch-{}/{}'.format(epoch, cfg.max_epochs)
pbar.set_description('Train' + discrip_str)
for _ in pbar:
start_time = time.time()
data, label = load_cuda_data(train_data,
dataset_name=cfg.dataset_name)
# load_cuda_data(train_dataloader, cfg.dataset_name)
data_time = time.time() - start_time
if_accum_grad = ((iteration % cfg.grad_accum_iters) != 0)
train_net_time_start = time.time()
############ aofp
# 1. see if it is time to start on every layer
# 2. forward and accumulate
# 3. if a half on some layer is finished, do something
# ---- fetch its accumulated t vectors, analyze the first 'granu' elements
# ---- if good enough, set the base mask, reset the search space
# ---- elif granu == 1, do nothing
# ---- else, granu /= 2, reset the search space
for layer_idx, start_iter in layer_to_start_iter.items():
if start_iter == iteration:
layer_idx_to_module[layer_idx].start_aofp(iteration)
acc, acc5, loss = train_one_step(
model,
data,
label,
optimizer,
criterion,
if_accum_grad,
gradient_mask_tensor=gradient_mask_tensor,
lasso_keyword_to_strength=lasso_keyword_to_strength)
for layer_idx, aofp_layer in layer_idx_to_module.items():
# accumulate
if layer_idx not in succ_strategy:
continue
follow_layer_idx = succ_strategy[layer_idx]
if follow_layer_idx not in layer_idx_to_module:
continue
t_value = layer_idx_to_module[follow_layer_idx].t_value
aofp_layer.accumulate_t_value(t_value)
if aofp_layer.finished_a_half(iteration):
aofp_layer.halve_or_stop(iteration)
###################################
train_net_time_end = time.time()
if iteration > TRAIN_SPEED_START * max_iters and iteration < TRAIN_SPEED_END * max_iters:
recorded_train_examples += cfg.global_batch_size
recorded_train_time += train_net_time_end - train_net_time_start
scheduler.step()
for module in model.modules():
if hasattr(module, 'set_cur_iter'):
module.set_cur_iter(iteration)
if iteration % cfg.tb_iter_period == 0 and engine.world_rank == 0:
for tag, value in zip(
tb_tags,
[acc.item(), acc5.item(),
loss.item()]):
tb_writer.add_scalars(tag, {'Train': value}, iteration)
top1.update(acc.item())
top5.update(acc5.item())
losses.update(loss.item())
if epoch >= cfg.max_epochs - COLLECT_TRAIN_LOSS_EPOCHS:
collected_train_loss_sum += loss.item()
collected_train_loss_count += 1
pbar_dic = OrderedDict()
pbar_dic['data-time'] = '{:.2f}'.format(data_time)
pbar_dic['cur_iter'] = iteration
pbar_dic['lr'] = scheduler.get_lr()[0]
pbar_dic['top1'] = '{:.5f}'.format(top1.mean)
pbar_dic['top5'] = '{:.5f}'.format(top5.mean)
pbar_dic['loss'] = '{:.5f}'.format(losses.mean)
pbar.set_postfix(pbar_dic)
iteration += 1
if iteration >= max_iters or iteration % cfg.ckpt_iter_period == 0:
engine.update_iteration(iteration)
if (not engine.distributed) or (engine.distributed and
engine.world_rank == 0):
engine.save_and_link_checkpoint(cfg.output_dir)
if iteration >= max_iters:
break
# do something after an epoch?
engine.update_iteration(iteration)
engine.save_latest_ckpt(cfg.output_dir)
if (epoch + 1) % save_hdf5_epochs == 0:
engine.save_hdf5(
os.path.join(cfg.output_dir,
'epoch-{}.hdf5'.format(epoch)))
if local_rank == 0 and \
cfg.val_epoch_period > 0 and (epoch >= cfg.max_epochs - 10 or epoch % cfg.val_epoch_period == 0):
val_during_train(epoch=epoch,
iteration=iteration,
tb_tags=tb_tags,
engine=engine,
model=model,
val_data=val_data,
criterion=criterion,
descrip_str=discrip_str,
dataset_name=cfg.dataset_name,
test_batch_size=TEST_BATCH_SIZE,
tb_writer=tb_writer)
cur_deps = np.array(cfg.deps)
for submodule in model.modules():
if hasattr(submodule, 'base_mask'):
cur_deps[submodule.conv_idx] = np.sum(
submodule.base_mask.cpu().numpy() == 1)
origin_flops = flops_func(cfg.deps)
cur_flops = flops_func(cur_deps)
remain_ratio = cur_flops / origin_flops
if local_rank == 0:
print('##########################')
print('origin deps ', cfg.deps)
print('cur deps ', cur_deps)
print('remain flops ratio = ', remain_ratio, 'the target is ',
remain_flops_ratio)
print('##########################')
if remain_ratio < remain_flops_ratio:
break
if iteration >= max_iters:
break
# do something after the training
if recorded_train_time > 0:
exp_per_sec = recorded_train_examples / recorded_train_time
else:
exp_per_sec = 0
engine.log(
'TRAIN speed: from {} to {} iterations, batch_size={}, examples={}, total_net_time={:.4f}, examples/sec={}'
.format(int(TRAIN_SPEED_START * max_iters),
int(TRAIN_SPEED_END * max_iters), cfg.global_batch_size,
recorded_train_examples, recorded_train_time, exp_per_sec))
if cfg.save_weights:
engine.save_checkpoint(cfg.save_weights)
print('NOTE: training finished, saved to {}'.format(
cfg.save_weights))
engine.save_hdf5(os.path.join(cfg.output_dir, 'finish.hdf5'))
if collected_train_loss_count > 0:
engine.log(
'TRAIN LOSS collected over last {} epochs: {:.6f}'.format(
COLLECT_TRAIN_LOSS_EPOCHS,
collected_train_loss_sum / collected_train_loss_count))
final_deps = aofp_prune(model,
origin_deps=cfg.deps,
succ_strategy=succ_strategy,
save_path=os.path.join(cfg.output_dir,
'finish_pruned.hdf5'))
origin_flops = flops_func(cfg.deps)
cur_flops = flops_func(final_deps)
engine.log(
'##################################################################'
)
engine.log(cfg.network_type)
engine.log('origin width: {} , flops {} '.format(
cfg.deps, origin_flops))
engine.log('final width: {}, flops {} '.format(final_deps, cur_flops))
engine.log('flops reduction: {}'.format(1 - cur_flops / origin_flops))
return final_deps
