def eval(rank, args, shared_nav_model, shared_ans_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.model_type == 'pacman':
model_kwargs = {'question_vocab': load_vocab(args.vocab_json)}
nav_model = NavPlannerControllerModel(**model_kwargs)
else:
exit()
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
ans_model = VqaLstmCnnAttentionModel(**model_kwargs)
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'target_obj_conn_map_dir': args.target_obj_conn_map_dir,
'map_resolution': args.map_resolution,
'batch_size': 1,
'input_type': args.model_type,
'num_frames': 5,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': False
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_nav_log_path = os.path.join(args.log_dir,
'nav_eval_' + str(rank) + '.json')
args.output_ans_log_path = os.path.join(args.log_dir,
'ans_eval_' + str(rank) + '.json')
t, epoch, best_eval_acc = 0, 0, 0.0
while epoch < int(args.max_epochs):
start_time = time.time()
invalids = []
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
ans_model.load_state_dict(shared_ans_model.state_dict())
ans_model.eval()
ans_model.cuda()
# that's a lot of numbers
nav_metrics = NavMetric(
info={
'split': args.eval_split,
'thread': rank
},
metric_names=[
'd_0_10', 'd_0_30', 'd_0_50', 'd_T_10', 'd_T_30', 'd_T_50',
'd_D_10', 'd_D_30', 'd_D_50', 'd_min_10', 'd_min_30',
'd_min_50', 'r_T_10', 'r_T_30', 'r_T_50', 'r_e_10', 'r_e_30',
'r_e_50', 'stop_10', 'stop_30', 'stop_50', 'ep_len_10',
'ep_len_30', 'ep_len_50'
],
log_json=args.output_nav_log_path)
vqa_metrics = VqaMetric(
info={
'split': args.eval_split,
'thread': rank
},
metric_names=[
'accuracy_10', 'accuracy_30', 'accuracy_50', 'mean_rank_10',
'mean_rank_30', 'mean_rank_50', 'mean_reciprocal_rank_10',
'mean_reciprocal_rank_30', 'mean_reciprocal_rank_50'
],
log_json=args.output_ans_log_path)
if 'pacman' in args.model_type:
done = False
while done == False:
for batch in tqdm(eval_loader):
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
nav_model.cuda()
idx, question, answer, actions, action_length = batch
metrics_slug = {}
h3d = eval_loader.dataset.episode_house
# evaluate at multiple initializations
for i in [10, 30, 50]:
t += 1
if i > action_length[0]:
invalids.append([idx[0], i])
continue
question_var = Variable(question.cuda())
controller_step = False
planner_hidden = nav_model.planner_nav_rnn.init_hidden(
1)
# forward through planner till spawn
planner_actions_in, planner_img_feats, controller_step, controller_action_in, controller_img_feat, init_pos = eval_loader.dataset.get_hierarchical_features_till_spawn(
actions[0, :action_length[0] + 1].numpy(), i)
planner_actions_in_var = Variable(
planner_actions_in.cuda())
planner_img_feats_var = Variable(
planner_img_feats.cuda())
for step in range(planner_actions_in.size(0)):
planner_scores, planner_hidden = nav_model.planner_step(
question_var,
planner_img_feats_var[step].view(1, 1, 3200),
planner_actions_in_var[step].view(1, 1),
planner_hidden)
if controller_step == True:
controller_img_feat_var = Variable(
controller_img_feat.cuda())
controller_action_in_var = Variable(
torch.LongTensor(1, 1).fill_(
int(controller_action_in)).cuda())
controller_scores = nav_model.controller_step(
controller_img_feat_var.view(1, 1, 3200),
controller_action_in_var.view(1, 1),
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1:
controller_step = True
else:
controller_step = False
action = int(controller_action_in)
action_in = torch.LongTensor(1, 1).fill_(action +
1).cuda()
else:
prob = F.softmax(planner_scores, dim=1)
action = int(prob.max(1)[1].data.cpu().numpy()[0])
action_in = torch.LongTensor(1, 1).fill_(action +
1).cuda()
h3d.env.reset(x=init_pos[0],
y=init_pos[2],
yaw=init_pos[3])
init_dist_to_target = h3d.get_dist_to_target(
h3d.env.cam.pos)
if init_dist_to_target < 0: # unreachable
invalids.append([idx[0], i])
continue
episode_length = 0
episode_done = True
controller_action_counter = 0
dists_to_target, pos_queue, pred_actions = [
init_dist_to_target
], [init_pos], []
planner_actions, controller_actions = [], []
if action != 3:
# take the first step
img, _, _ = h3d.step(action)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = eval_loader.dataset.cnn(
Variable(img.view(1, 3, 224,
224).cuda())).view(
1, 1, 3200)
for step in range(args.max_episode_length):
episode_length += 1
if controller_step == False:
planner_scores, planner_hidden = nav_model.planner_step(
question_var, img_feat_var,
Variable(action_in), planner_hidden)
prob = F.softmax(planner_scores, dim=1)
action = int(
prob.max(1)[1].data.cpu().numpy()[0])
planner_actions.append(action)
pred_actions.append(action)
img, _, episode_done = h3d.step(action)
episode_done = episode_done or episode_length >= args.max_episode_length
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = eval_loader.dataset.cnn(
Variable(img.view(1, 3, 224,
224).cuda())).view(
1, 1, 3200)
dists_to_target.append(
h3d.get_dist_to_target(h3d.env.cam.pos))
pos_queue.append([
h3d.env.cam.pos.x, h3d.env.cam.pos.y,
h3d.env.cam.pos.z, h3d.env.cam.yaw
])
if episode_done == True:
break
# query controller to continue or not
controller_action_in = Variable(
torch.LongTensor(1,
1).fill_(action).cuda())
controller_scores = nav_model.controller_step(
img_feat_var, controller_action_in,
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1 and controller_action_counter < 4:
controller_action_counter += 1
controller_step = True
else:
controller_action_counter = 0
controller_step = False
controller_action = 0
controller_actions.append(controller_action)
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
# run answerer here
if len(pos_queue) < 5:
pos_queue = eval_loader.dataset.episode_pos_queue[
len(pos_queue) - 5:] + pos_queue
images = eval_loader.dataset.get_frames(
h3d, pos_queue[-5:], preprocess=True)
images_var = Variable(
torch.from_numpy(images).cuda()).view(
1, 5, 3, 224, 224)
scores, att_probs = ans_model(images_var, question_var)
ans_acc, ans_rank = vqa_metrics.compute_ranks(
scores.data.cpu(), answer)
pred_answer = scores.max(1)[1].data[0]
print(
'[Q_GT]', ' '.join([
eval_loader.dataset.vocab['questionIdxToToken']
[x] for x in question[0] if x != 0
]))
print(
'[A_GT]',
eval_loader.dataset.vocab['answerIdxToToken'][
answer[0]])
print(
'[A_PRED]',
eval_loader.dataset.vocab['answerIdxToToken']
[pred_answer])
# compute stats
metrics_slug['accuracy_' + str(i)] = ans_acc[0]
metrics_slug['mean_rank_' + str(i)] = ans_rank[0]
metrics_slug['mean_reciprocal_rank_' +
str(i)] = 1.0 / ans_rank[0]
metrics_slug['d_0_' + str(i)] = dists_to_target[0]
metrics_slug['d_T_' + str(i)] = dists_to_target[-1]
metrics_slug[
'd_D_' +
str(i)] = dists_to_target[0] - dists_to_target[-1]
metrics_slug['d_min_' +
str(i)] = np.array(dists_to_target).min()
metrics_slug['ep_len_' + str(i)] = episode_length
if action == 3:
metrics_slug['stop_' + str(i)] = 1
else:
metrics_slug['stop_' + str(i)] = 0
inside_room = []
for p in pos_queue:
inside_room.append(
h3d.is_inside_room(
p, eval_loader.dataset.target_room))
if inside_room[-1] == True:
metrics_slug['r_T_' + str(i)] = 1
else:
metrics_slug['r_T_' + str(i)] = 0
if any([x == True for x in inside_room]) == True:
metrics_slug['r_e_' + str(i)] = 1
else:
metrics_slug['r_e_' + str(i)] = 0
# navigation metrics
metrics_list = []
for i in nav_metrics.metric_names:
if i not in metrics_slug:
metrics_list.append(nav_metrics.metrics[
nav_metrics.metric_names.index(i)][0])
else:
metrics_list.append(metrics_slug[i])
nav_metrics.update(metrics_list)
# vqa metrics
metrics_list = []
for i in vqa_metrics.metric_names:
if i not in metrics_slug:
metrics_list.append(vqa_metrics.metrics[
vqa_metrics.metric_names.index(i)][0])
else:
metrics_list.append(metrics_slug[i])
vqa_metrics.update(metrics_list)
try:
print(nav_metrics.get_stat_string(mode=0))
print(vqa_metrics.get_stat_string(mode=0))
except:
pass
print('epoch', epoch)
print('invalids', len(invalids))
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
epoch += 1
# checkpoint if best val accuracy
if vqa_metrics.metrics[2][0] > best_eval_acc: # ans_acc_50
best_eval_acc = vqa_metrics.metrics[2][0]
if epoch % args.eval_every == 0 and args.to_log == 1:
vqa_metrics.dump_log()
nav_metrics.dump_log()
model_state = get_state(nav_model)
aad = dict(args.__dict__)
ad = {}
for i in aad:
if i[0] != '_':
ad[i] = aad[i]
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_ans_50_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_ans_acc_50:%.04f]' % best_eval_acc)
eval_loader.dataset._load_envs(start_idx=0, in_order=True)
def train(rank, args, shared_nav_model, shared_ans_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.model_type == 'pacman':
model_kwargs = {'question_vocab': load_vocab(args.vocab_json)}
nav_model = NavPlannerControllerModel(**model_kwargs)
else:
exit()
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
ans_model = VqaLstmCnnAttentionModel(**model_kwargs)
optim = torch.optim.SGD(filter(lambda p: p.requires_grad,
shared_nav_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'target_obj_conn_map_dir': args.target_obj_conn_map_dir,
'map_resolution': args.map_resolution,
'batch_size': 1,
'input_type': args.model_type,
'num_frames': 5,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
args.output_nav_log_path = os.path.join(args.log_dir,
'nav_train_' + str(rank) + '.json')
args.output_ans_log_path = os.path.join(args.log_dir,
'ans_train_' + str(rank) + '.json')
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.cuda()
ans_model.load_state_dict(shared_ans_model.state_dict())
ans_model.eval()
ans_model.cuda()
nav_metrics = NavMetric(info={
'split': 'train',
'thread': rank
},
metric_names=[
'planner_loss', 'controller_loss', 'reward',
'episode_length'
],
log_json=args.output_nav_log_path)
vqa_metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_ans_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
p_losses, c_losses, reward_list, episode_length_list = [], [], [], []
nav_metrics.update([10.0, 10.0, 0, 100])
mult = 0.1
while epoch < int(args.max_epochs):
if 'pacman' in args.model_type:
planner_lossFn = MaskedNLLCriterion().cuda()
controller_lossFn = MaskedNLLCriterion().cuda()
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
nav_model.cuda()
idx, question, answer, actions, action_length = batch
metrics_slug = {}
h3d = train_loader.dataset.episode_house
# evaluate at multiple initializations
# for i in [10, 30, 50]:
t += 1
question_var = Variable(question.cuda())
controller_step = False
planner_hidden = nav_model.planner_nav_rnn.init_hidden(1)
# forward through planner till spawn
planner_actions_in, planner_img_feats, controller_step, controller_action_in, controller_img_feat, init_pos = train_loader.dataset.get_hierarchical_features_till_spawn(
actions[0, :action_length[0] + 1].numpy(),
max(3, int(mult * action_length[0])))
planner_actions_in_var = Variable(
planner_actions_in.cuda())
planner_img_feats_var = Variable(planner_img_feats.cuda())
for step in range(planner_actions_in.size(0)):
planner_scores, planner_hidden = nav_model.planner_step(
question_var,
planner_img_feats_var[step].view(1, 1, 3200),
planner_actions_in_var[step].view(1, 1),
planner_hidden)
if controller_step == True:
controller_img_feat_var = Variable(
controller_img_feat.cuda())
controller_action_in_var = Variable(
torch.LongTensor(1, 1).fill_(
int(controller_action_in)).cuda())
controller_scores = nav_model.controller_step(
controller_img_feat_var.view(1, 1, 3200),
controller_action_in_var.view(1, 1),
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1:
controller_step = True
else:
controller_step = False
action = int(controller_action_in)
action_in = torch.LongTensor(1, 1).fill_(action +
1).cuda()
else:
prob = F.softmax(planner_scores, dim=1)
action = int(prob.max(1)[1].data.cpu().numpy()[0])
action_in = torch.LongTensor(1, 1).fill_(action +
1).cuda()
h3d.env.reset(x=init_pos[0],
y=init_pos[2],
yaw=init_pos[3])
init_dist_to_target = h3d.get_dist_to_target(
h3d.env.cam.pos)
if init_dist_to_target < 0: # unreachable
# invalids.append([idx[0], i])
continue
episode_length = 0
episode_done = True
controller_action_counter = 0
dists_to_target, pos_queue = [init_dist_to_target
], [init_pos]
rewards, planner_actions, planner_log_probs, controller_actions, controller_log_probs = [], [], [], [], []
if action != 3:
# take the first step
img, rwd, episode_done = h3d.step(action,
step_reward=True)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = train_loader.dataset.cnn(
Variable(img.view(1, 3, 224,
224).cuda())).view(1, 1, 3200)
for step in range(args.max_episode_length):
episode_length += 1
if controller_step == False:
planner_scores, planner_hidden = nav_model.planner_step(
question_var, img_feat_var,
Variable(action_in), planner_hidden)
planner_prob = F.softmax(planner_scores, dim=1)
planner_log_prob = F.log_softmax(
planner_scores, dim=1)
action = planner_prob.multinomial().data
planner_log_prob = planner_log_prob.gather(
1, Variable(action))
planner_log_probs.append(
planner_log_prob.cpu())
action = int(action.cpu().numpy()[0, 0])
planner_actions.append(action)
img, rwd, episode_done = h3d.step(action,
step_reward=True)
episode_done = episode_done or episode_length >= args.max_episode_length
rewards.append(rwd)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = train_loader.dataset.cnn(
Variable(img.view(1, 3, 224,
224).cuda())).view(
1, 1, 3200)
dists_to_target.append(
h3d.get_dist_to_target(h3d.env.cam.pos))
pos_queue.append([
h3d.env.cam.pos.x, h3d.env.cam.pos.y,
h3d.env.cam.pos.z, h3d.env.cam.yaw
])
if episode_done == True:
break
# query controller to continue or not
controller_action_in = Variable(
torch.LongTensor(1, 1).fill_(action).cuda())
controller_scores = nav_model.controller_step(
img_feat_var, controller_action_in,
planner_hidden[0])
controller_prob = F.softmax(controller_scores,
dim=1)
controller_log_prob = F.log_softmax(
controller_scores, dim=1)
controller_action = controller_prob.multinomial(
).data
if int(controller_action[0]
) == 1 and controller_action_counter < 4:
controller_action_counter += 1
controller_step = True
else:
controller_action_counter = 0
controller_step = False
controller_action.fill_(0)
controller_log_prob = controller_log_prob.gather(
1, Variable(controller_action))
controller_log_probs.append(
controller_log_prob.cpu())
controller_action = int(
controller_action.cpu().numpy()[0, 0])
controller_actions.append(controller_action)
action_in = torch.LongTensor(1, 1).fill_(action +
1).cuda()
# run answerer here
ans_acc = [0]
if action == 3:
if len(pos_queue) < 5:
pos_queue = train_loader.dataset.episode_pos_queue[
len(pos_queue) - 5:] + pos_queue
images = train_loader.dataset.get_frames(
h3d, pos_queue[-5:], preprocess=True)
images_var = Variable(
torch.from_numpy(images).cuda()).view(
1, 5, 3, 224, 224)
scores, att_probs = ans_model(images_var, question_var)
ans_acc, ans_rank = vqa_metrics.compute_ranks(
scores.data.cpu(), answer)
vqa_metrics.update([ans_acc, ans_rank, 1.0 / ans_rank])
rewards.append(h3d.success_reward * ans_acc[0])
R = torch.zeros(1, 1)
planner_loss = 0
controller_loss = 0
planner_rev_idx = -1
for i in reversed(range(len(rewards))):
R = 0.99 * R + rewards[i]
advantage = R - nav_metrics.metrics[2][1]
if i < len(controller_actions):
controller_loss = controller_loss - controller_log_probs[
i] * Variable(advantage)
if controller_actions[
i] == 0 and planner_rev_idx + len(
planner_log_probs) >= 0:
planner_loss = planner_loss - planner_log_probs[
planner_rev_idx] * Variable(advantage)
planner_rev_idx -= 1
elif planner_rev_idx + len(planner_log_probs) >= 0:
planner_loss = planner_loss - planner_log_probs[
planner_rev_idx] * Variable(advantage)
planner_rev_idx -= 1
controller_loss /= max(1, len(controller_log_probs))
planner_loss /= max(1, len(planner_log_probs))
optim.zero_grad()
if isinstance(planner_loss, float) == False and isinstance(
controller_loss, float) == False:
p_losses.append(planner_loss.data[0, 0])
c_losses.append(controller_loss.data[0, 0])
reward_list.append(np.sum(rewards))
episode_length_list.append(episode_length)
(planner_loss + controller_loss).backward()
ensure_shared_grads(nav_model.cpu(), shared_nav_model)
optim.step()
if len(reward_list) > 50:
nav_metrics.update([
p_losses, c_losses, reward_list,
episode_length_list
])
print(nav_metrics.get_stat_string())
if args.to_log == 1:
nav_metrics.dump_log()
if nav_metrics.metrics[2][1] > 0.35:
mult = min(mult + 0.1, 1.0)
p_losses, c_losses, reward_list, episode_length_list = [], [], [], []
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
if args.to_cache == False:
train_loader.dataset._load_envs(start_idx=0,
in_order=True)
else:
done = True
epoch += 1
def train(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(filter(lambda p: p.requires_grad,
shared_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
print('[TRAIN_LOADER] start')
train_loader = EqaDataLoader(**train_loader_kwargs)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
while epoch < int(args.max_epochs):
# print('epoch no. %d' % epoch)
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.log == True:
metrics.dump_log()
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = True
#all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cnn.eval()
model.cuda()
idx, questions, answers, images, _, _, _ = batch
print('--- images dim {}'.format(images.size()))
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
print('--- att_probs: {}.'.format(att_probs))
# print('--- answers_var: {}.'.format(answers_var))
# print('--- loss: {}.'.format(loss))
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.item(), accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.log == True:
metrics.dump_log()
if all_envs_loaded == False:
print('[CHECK][Cache:%d][Total:%d]' %
(len(train_loader.dataset.img_data_cache),
len(train_loader.dataset.env_list)))
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
epoch += 1
def eval(rank, args, shared_model):
print('eval start...')
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
}
# print(eval_loader_kwargs)
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
t, epoch, best_eval_acc = 0, 0, 0
while epoch < int(args.max_epochs):
model.load_state_dict(shared_model.state_dict())
model.eval()
metrics = VqaMetric(info={'split': args.eval_split},
metric_names=[
'loss', 'accuracy', 'mean_rank',
'mean_reciprocal_rank'
],
log_json=args.output_log_path)
if args.input_type == 'ques':
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
print(scores)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = True
#all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
epoch += 1
# checkpoint if best val accuracy
if metrics.metrics[1][0] > best_eval_acc:
best_eval_acc = metrics.metrics[1][0]
if epoch % args.eval_every == 0 and args.log == True:
metrics.dump_log()
model_state = get_state(model)
if args.checkpoint_path != False:
ad = checkpoint['args']
else:
ad = args.__dict__
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_accuracy_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_accuracy:%.04f]' % best_eval_acc)
def eval(rank, args, shared_model, use_vision, use_language):
gpu_idx = args.gpus.index(args.gpus[rank % len(args.gpus)])
torch.cuda.set_device(gpu_idx)
print("eval gpu:" + str(gpu_idx) + " assigned")
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
t, epoch, best_eval_acc = 0, 0, 0
print(epoch, args.max_epochs) # DEBUG
while epoch < int(args.max_epochs):
print("eval gpu:" + str(gpu_idx) + " running epoch " + str(epoch))
model.load_state_dict(shared_model.state_dict())
model.eval()
metrics = VqaMetric(info={'split': args.eval_split},
metric_names=[
'loss', 'accuracy', 'mean_rank',
'mean_reciprocal_rank'
],
log_json=args.output_log_path)
if args.input_type == 'ques':
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers = batch
# If not using language, replace each question with a start and end token back to back.
if not use_language:
questions = torch.zeros_like(questions)
questions.fill_(
model_kwargs['vocab']['questionTokenToIdx']['<NULL>'])
questions[:, 0] = model_kwargs['vocab'][
'questionTokenToIdx']['<START>']
questions[:, 1] = model_kwargs['vocab'][
'questionTokenToIdx']['<END>']
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers, images, _, _, _ = batch
# If not using language, replace each question with a start and end token back to back.
if not use_language:
questions = torch.zeros_like(questions)
questions.fill_(model_kwargs['vocab']
['questionTokenToIdx']['<NULL>'])
questions[:, 0] = model_kwargs['vocab'][
'questionTokenToIdx']['<START>']
questions[:, 1] = model_kwargs['vocab'][
'questionTokenToIdx']['<END>']
# If not using vision, replace all image feature data with zeros.
if not use_vision:
images = torch.zeros_like(images)
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
read_epoch = None
while read_epoch is None or epoch >= read_epoch:
try:
with open(args.identifier + '.shared_epoch.tmp', 'r') as f:
read_epoch = int(f.read().strip())
except (IOError, ValueError):
pass
if read_epoch is None:
# TODO: since merger, this no longer works (hanging); might need to undo changes re: threading that we
# TODO: made or debug them.
print("eval gpu:" + str(gpu_idx) +
" waiting for train thread to finish epoch " +
str(epoch))
time.sleep(
10
) # sleep until the training thread finishes another iteration
epoch = read_epoch
# checkpoint if best val accuracy
if metrics.metrics[1][0] > best_eval_acc:
best_eval_acc = metrics.metrics[1][0]
if epoch % args.eval_every == 0 and args.to_log == 1:
metrics.dump_log()
model_state = get_state(model)
if args.checkpoint_path != False:
ad = checkpoint['args']
else:
ad = args.__dict__
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_accuracy_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_accuracy:%.04f]' % best_eval_acc)
def fgsm(rank, args, shared_model, number):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
all_n = 0
# torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
device_ids = [0,1]
model = model.cuda(device_ids[0])
model = torch.nn.DataParallel(model, device_ids=device_ids)
# torch.backends.cudnn.benchmark = True
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'target_obj_conn_map_dir': args.target_obj_conn_map_dir,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank%len(args.gpus)],
'to_cache': args.cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
# for ijcai in range(number):
# eval_loader.dataset._load_envs()
eval_loader.dataset._load_envs(start_idx=number)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
model.load_state_dict(handle_load(shared_model.state_dict()))
model.eval()
metrics = VqaMetric(
info={'split': args.eval_split},
metric_names=[
'loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'
],
log_json=args.output_log_path)
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
done = False
print(number, ' begin')
import copy
import torch.nn as nn
from PIL import Image
softmax = nn.Softmax()
allcor = []
while done == False:
for ii,batch in enumerate(eval_loader):
# model.cuda()
if(ii>=0):
idx, questions, answers, house, v, f, vt, pos, _, _, _ = batch
print('all size:',v.size(),f.size(),vt.size())
#print(house)
print(questions, answers)
questions_var = Variable(questions.cuda())
print(questions_var.size())
answers_var = Variable(answers.cuda())
v_var = Variable(v.cuda(),requires_grad=True)
f_var = Variable(f.cuda())
vt_var = Variable(vt.cuda(),requires_grad=True)
begin, end = get_info(idx[0], house[0])
#print(vt_var[0][0][40010][0][0])
#print(vt_var[0][0][39506][0][0])
vt_test = copy.deepcopy(vt_var)
epsilon = 32.0/256.0
vt_grad = torch.zeros(vt_var.size()).cuda()
#vt_var.retain_grad()
scores, att_probs,img_clean = model(v_var, f_var, vt_var, pos, questions_var)
i1, i2 = torch.max(scores[0],0)
mi = i2.cpu().numpy().tolist()
ms = int(answers)
print(mi)
print(mi==int(ms))
if(mi==int(ms)):
allcor.append(1.0)
else:
allcor.append(0.0)
print(softmax(scores[0]))
print(softmax(scores[0])[ms])
img_clean = img_clean[0]
for iii in range(img_clean.size()[0]):
imggg = img_clean[iii].detach().cpu().numpy()
imggg = imggg * 255.0
imggg = imggg.transpose((1,2,0))
imggg = Image.fromarray(imggg.astype('uint8'))
imggg.save('result_test/'+str(ii)+'_'+str(iii)+'_clean.jpg')
loss = lossFn(scores, answers_var)
loss.backward()
#print(torch.max(vt_grad))
vt_grad = vt_var.grad
v_grad = v_var.grad
print('max grad',torch.max(vt_grad.data))
#print(vt_grad[0][0][40010][0][0])
#print(vt_grad[0][0][39506][0][0])
vt_var = vt_var.detach() + epsilon * torch.sign(vt_grad)
#v_var = v_var.detach() + 1.0 * torch.sign(v_grad)
vt_var = torch.clamp(vt_var, 0, 1)
#vt_var = Variable(vt_var.data, requires_grad=True).cuda()
with torch.no_grad():
model.eval()
begin, end = get_info(idx[0], house[0])
#for iii in range(begin,end):
#if(vt_test[0][0][iii][0][0][0][0] != vt_var[0][0][iii][0][0][0][0] or vt_test[0][0][iii][0][0][1][0] != vt_var[0][0][iii][0][0][1][0] or vt_test[0][0][iii][0][1][1][0] != vt_var[0][0][iii][0][1][1][0]):
#print(iii)
vt_test[0][0][begin:end] = vt_var[0][0][begin:end]
#print(vt_test[0][0][40010][0][0])
#print(vt_test[0][0][39506][0][0])
#print((vt_test[0][0] == vt_var[0][0]).sum())
#print((vt_test[0][0].size()),(vt_var[0][0].size()))
scores, att_probs,imgg = model(v_var, f_var, vt_test, pos, questions_var)
imgg = imgg[0]
#print(imgg.size())
for iii in range(imgg.size()[0]):
imggg = imgg[iii].detach().cpu().numpy()
imggg = imggg * 255.0
imggg = imggg.transpose((1,2,0))
imggg = Image.fromarray(imggg.astype('uint8'))
imggg.save('result_test/'+str(ii)+'_'+str(iii)+'_adv.jpg')
i1, i2 = torch.max(scores[0],0)
mi = i2.cpu().numpy().tolist()
ms = int(answers)
print(mi)
print(mi==int(ms))
print(softmax(scores[0]))
print(softmax(scores[0])[ms])
for k in range(idx.shape[0]):
begin, end = get_info(idx[k], house[k])
#print(begin, end)
#begin, end = find_index('167', house[k])
v_m = v_var[k][0]
f_m = f_var[k][0][begin:end]
vt_m = vt_var[k][0][begin:end]
nr.save_obj('/media/trs1/dataset/suncg_data/house/' + house[k] + '/attack_' + str(int(idx[k])) + '.obj', v_m, f_m, vt_m)
idx = idx.cpu()
questions = questions.cpu()
answers = answers.cpu()
questions_var = questions_var.cpu()
answers_var = answers_var.cpu()
v = v.cpu()
f = f.cpu()
vt = vt.cpu()
v_m = v_m.cpu()
f_m = f_m.cpu()
vt_m = vt_m.cpu()
v_var = v_var.detach().cpu()
f_var = f_var.cpu()
vt_var = vt_var.detach().cpu()
vt_grad = vt_grad.cpu()
print(house[k] + ' ' + str(int(idx[k])) + ' ok')
all_n += 1
# handle_file(path)
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
print(allcor)
print(number, ' over')
def attack_fgsm(rank, args, shared_model, number): #?
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
all_n = 0
# torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
device_ids = [0, 1]
model = model.cuda(device_ids[0])
model = torch.nn.DataParallel(model, device_ids=device_ids)
# torch.backends.cudnn.benchmark = True
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
# for ijcai in range(number):
# eval_loader.dataset._load_envs()
eval_loader.dataset._load_envs(start_idx=number)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
model.load_state_dict(handle_load(shared_model.state_dict()))
model.eval()
metrics = VqaMetric(
info={'split': args.eval_split},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
done = False
while done == False:
for batch in eval_loader:
idx, questions, answers, house, v, f, vt, pos, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
v_var = Variable(v.cuda(), requires_grad=True)
f_var = Variable(f.cuda())
vt_var = Variable(vt.cuda(), requires_grad=True)
# noise level
epsilon = 12.0 / 255.0
scores, att_probs = model(v_var, f_var, vt_var, pos, questions_var,
0, '0')
loss = lossFn(scores, answers_var)
loss.backward()
# get grad for attack
vt_grad = vt_var.grad
vt_detach = vt_var.detach()
begin, end, oid = get_info(idx[0], house[0])
if (begin == 1000 and end == 2000):
print(str(int(idx[0])), 'error')
vt_grad[0][0][:begin] = 0
vt_grad[0][0][end:] = 0
vt_var = vt_detach + epsilon * torch.sign(vt_grad)
for k in range(idx.shape[0]):
begin, end, oid = get_info(idx[k], house[k])
v_m = v_var[k][0]
f_m = f_var[k][0][begin:end]
vt_m = vt_var[k][0][begin:end]
# save changed object to .obj file
nr.save_obj(
'/path/to/data/house/' + house[k] + '/attack_' +
str(int(idx[k])) + '_' + str(oid) + '.obj', v_m, f_m, vt_m)
with torch.no_grad():
model.eval()
scores, att_probs = model(v_var, f_var, vt_var, pos,
questions_var, 0, '0')
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
def eval(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank%len(args.gpus)],
'to_cache': args.to_cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
t, epoch, best_eval_acc = 0, 0, 0
while epoch < int(args.max_epochs):
model.load_state_dict(shared_model.state_dict())
model.eval()
metrics = VqaMetric(
info={'split': args.eval_split},
metric_names=[
'loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'
],
log_json=args.output_log_path)
if args.input_type == 'ques':
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
epoch += 1
# checkpoint if best val accuracy
if metrics.metrics[1][0] > best_eval_acc:
best_eval_acc = metrics.metrics[1][0]
if epoch % args.eval_every == 0 and args.to_log == 1:
metrics.dump_log()
model_state = get_state(model)
if args.checkpoint_path != False:
ad = checkpoint['args']
else:
ad = args.__dict__
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_accuracy_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_accuracy:%.04f]' % best_eval_acc)
def train(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(filter(lambda p: p.requires_grad,
shared_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
eval_loader = EqaDataLoader(**eval_loader_kwargs)
train_loader = EqaDataLoader(**train_loader_kwargs)
if args.input_type == 'ques,image':
train_loader.dataset._load_envs(start_idx=0, in_order=True)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch, best_eval_acc = 0, 0, 0
while epoch < int(args.max_epochs):
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
# accuracy, ranks = metrics.compute_ranks(scores.data.cpu(), answers)
# metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
#if t % args.print_every == 0:
# print(metrics.get_stat_string())
# if args.to_log == 1:
# metrics.dump_log()
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
env_done = False
env_all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded(
)
while env_done == False:
_loss, _accuracy, _ranks = None, None, None
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
if _loss is None:
_loss = loss.data[0]
_accuracy = accuracy
_ranks = ranks
else:
_loss = torch.cat([_loss, loss.data[0]])
_accuracy = torch.cat([_accuracy, accuracy])
_ranks = torch.cat([_ranks, ranks])
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
if env_all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
env_done = True
else:
env_done = True
epoch += 1
# checkpoint if best val accuracy
if metrics.metrics[1][0] > best_eval_acc:
best_eval_acc = metrics.metrics[1][0]
if epoch % args.eval_every == 0 and args.to_log == 1:
metrics.dump_log()
model_state = get_state(model)
if args.checkpoint_path != False:
ad = checkpoint['args']
else:
ad = args.__dict__
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_accuracy_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_accuracy:%.04f]' % best_eval_acc)
def attack_pgd(rank, args, shared_model, number):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
all_n = 0
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
device_ids = [0, 1]
model = model.cuda(device_ids[0])
model = torch.nn.DataParallel(model, device_ids=device_ids)
# torch.backends.cudnn.benchmark = True
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
eval_loader.dataset._load_envs(start_idx=number)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
model.load_state_dict(handle_load(shared_model.state_dict()))
model.eval()
metrics = VqaMetric(
info={'split': args.eval_split},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
done = False
while done == False:
for batch in eval_loader:
# model.cuda()
idx, questions, answers, house, v, f, vt, pos, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
v_var = Variable(v.cuda(), requires_grad=True)
f_var = Variable(f.cuda())
vt_var = Variable(vt.cuda(), requires_grad=True)
attack_iter = 10
attack_momentum = 1
alpha = 2.0 / 255
epsilon = 16.0 / 255
vt_grad = torch.zeros(vt_var.size()).cuda()
for j in range(attack_iter):
scores, att_probs = model(v_var, f_var, vt_var, pos,
questions_var, j, str(int(idx[0])))
loss = lossFn(scores, answers_var)
loss.backward()
vg = vt_var.grad
begin, end, _ = get_info(idx[0], house[0])
if (begin == 1000 and end == 2000):
print(str(int(idx[0])), 'error')
vg[0][0][:begin] = 0
vg[0][0][end:] = 0
noise = attack_momentum * vt_grad + vg
vt_grad = noise
vt_var = vt_var.detach() + alpha * torch.sign(noise)
vt_var = torch.where(vt_var > vt + epsilon, vt + epsilon,
vt_var)
vt_var = torch.clamp(vt_var, 0, 1)
vt_var = torch.where(vt_var < vt - epsilon, vt - epsilon,
vt_var)
vt_var = torch.clamp(vt_var, 0, 1)
vt_var = Variable(vt_var.data, requires_grad=True).cuda()
with torch.no_grad():
model.eval()
scores, att_probs = model(v_var, f_var, vt_var, pos,
questions_var, 100, str(int(idx[0])))
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
begin, end, oid = get_info(idx[0], house[0])
v_m = v_var[0][0]
f_m = f_var[0][0][begin:end]
vt_m = vt_var[0][0][begin:end]
nr.save_obj(
'/path/to/data/house/' + house[0] + '/attack_' +
str(int(idx[0])) + '_' + str(oid) + '.obj', v_m, f_m, vt_m)
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
def train(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.forget_rate is None:
forget_rate = args.noise_rate
else:
forget_rate = args.forget_rate
rate_schedule = np.ones(args.max_epochs) * forget_rate
rate_schedule[:args.num_gradual] = np.linspace(0,
forget_rate**args.exponent,
args.num_gradual)
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model1 = VqaLstmCnnAttentionModel(**model_kwargs)
# lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(filter(lambda p: p.requires_grad,
shared_model.parameters()),
lr=args.learning_rate)
optim1 = torch.optim.Adam(filter(lambda p: p.requires_grad,
model1.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.cache
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
if args.input_type == 'ques,image':
train_loader.dataset._load_envs(start_idx=0, in_order=True)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
while epoch < int(args.max_epochs):
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data.item(), accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.log == True:
metrics.dump_log()
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cnn.eval()
model.cuda()
# model1.load_state_dict(shared_model1.state_dict())
model1.train()
model1.cnn.eval()
model1.cuda()
idx, questions, answers, images, _, _, _ = batch
for i in range(len(answers)):
if random.random() < args.noise_rate:
tempt = random.randint(-10, 10)
answers[i] = answers[i] + tempt
while (answers[i] < 0 or answers[i] > 70):
answers[i] = answers[i] - tempt
tempt = random.randint(-10, 10)
answers[i] = answers[i] + tempt
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
scores1, att_probs1 = model1(images_var, questions_var)
loss, loss1 = loss_coteaching(scores, scores1, answers_var,
rate_schedule[epoch])
# zero grad
optim.zero_grad()
optim1.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data.item(), accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
loss1.backward()
ensure_shared_grads(model.cpu(), shared_model)
# ensure_shared_grads(model1.cpu(), shared_model1)
optim.step()
optim1.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.log == True:
metrics.dump_log()
if all_envs_loaded == False:
print('[CHECK][Cache:%d][Total:%d]' %
(len(train_loader.dataset.img_data_cache),
len(train_loader.dataset.env_list)))
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
epoch += 1
def train(rank, args, shared_nav_model, shared_ans_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.model_type == 'pacman':
model_kwargs = {'question_vocab': load_vocab(args.vocab_json)}
nav_model = NavPlannerControllerModel(**model_kwargs)
else:
exit()
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
ans_model = VqaLstmCnnAttentionModel(**model_kwargs)
optim = torch.optim.SGD(
filter(lambda p: p.requires_grad, shared_nav_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'target_obj_conn_map_dir': args.target_obj_conn_map_dir,
'map_resolution': args.map_resolution,
'batch_size': 1,
'input_type': args.model_type,
'num_frames': 5,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
args.output_nav_log_path = os.path.join(args.log_dir,
'nav_train_' + str(rank) + '.json')
args.output_ans_log_path = os.path.join(args.log_dir,
'ans_train_' + str(rank) + '.json')
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.cuda()
ans_model.load_state_dict(shared_ans_model.state_dict())
ans_model.eval()
ans_model.cuda()
nav_metrics = NavMetric(
info={'split': 'train',
'thread': rank},
metric_names=[
'planner_loss', 'controller_loss', 'reward', 'episode_length'
],
log_json=args.output_nav_log_path)
vqa_metrics = VqaMetric(
info={'split': 'train',
'thread': rank},
metric_names=['accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_ans_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
p_losses, c_losses, reward_list, episode_length_list = [], [], [], []
nav_metrics.update([10.0, 10.0, 0, 100])
mult = 0.1
while epoch < int(args.max_epochs):
if 'pacman' in args.model_type:
planner_lossFn = MaskedNLLCriterion().cuda()
controller_lossFn = MaskedNLLCriterion().cuda()
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
nav_model.cuda()
idx, question, answer, actions, action_length = batch
metrics_slug = {}
h3d = train_loader.dataset.episode_house
# evaluate at multiple initializations
# for i in [10, 30, 50]:
t += 1
question_var = Variable(question.cuda())
controller_step = False
planner_hidden = nav_model.planner_nav_rnn.init_hidden(1)
# forward through planner till spawn
planner_actions_in, planner_img_feats, controller_step, controller_action_in, controller_img_feat, init_pos = train_loader.dataset.get_hierarchical_features_till_spawn(
actions[0, :action_length[0] + 1].numpy(),
max(3, int(mult * action_length[0])))
planner_actions_in_var = Variable(
planner_actions_in.cuda())
planner_img_feats_var = Variable(planner_img_feats.cuda())
for step in range(planner_actions_in.size(0)):
planner_scores, planner_hidden = nav_model.planner_step(
question_var, planner_img_feats_var[step].view(
1, 1, 3200), planner_actions_in_var[step].view(
1, 1), planner_hidden)
if controller_step == True:
controller_img_feat_var = Variable(
controller_img_feat.cuda())
controller_action_in_var = Variable(
torch.LongTensor(1, 1).fill_(
int(controller_action_in)).cuda())
controller_scores = nav_model.controller_step(
controller_img_feat_var.view(1, 1, 3200),
controller_action_in_var.view(1, 1),
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1:
controller_step = True
else:
controller_step = False
action = int(controller_action_in)
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
else:
prob = F.softmax(planner_scores, dim=1)
action = int(prob.max(1)[1].data.cpu().numpy()[0])
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
h3d.env.reset(
x=init_pos[0], y=init_pos[2], yaw=init_pos[3])
init_dist_to_target = h3d.get_dist_to_target(
h3d.env.cam.pos)
if init_dist_to_target < 0: # unreachable
# invalids.append([idx[0], i])
continue
episode_length = 0
episode_done = True
controller_action_counter = 0
dists_to_target, pos_queue = [init_dist_to_target], [
init_pos
]
rewards, planner_actions, planner_log_probs, controller_actions, controller_log_probs = [], [], [], [], []
if action != 3:
# take the first step
img, rwd, episode_done = h3d.step(action, step_reward=True)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = train_loader.dataset.cnn(
Variable(img.view(1, 3, 224, 224).cuda())).view(
1, 1, 3200)
for step in range(args.max_episode_length):
episode_length += 1
if controller_step == False:
planner_scores, planner_hidden = nav_model.planner_step(
question_var, img_feat_var,
Variable(action_in), planner_hidden)
planner_prob = F.softmax(planner_scores, dim=1)
planner_log_prob = F.log_softmax(
planner_scores, dim=1)
action = planner_prob.multinomial().data
planner_log_prob = planner_log_prob.gather(
1, Variable(action))
planner_log_probs.append(
planner_log_prob.cpu())
action = int(action.cpu().numpy()[0, 0])
planner_actions.append(action)
img, rwd, episode_done = h3d.step(action, step_reward=True)
episode_done = episode_done or episode_length >= args.max_episode_length
rewards.append(rwd)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = train_loader.dataset.cnn(
Variable(img.view(1, 3, 224, 224)
.cuda())).view(1, 1, 3200)
dists_to_target.append(
h3d.get_dist_to_target(h3d.env.cam.pos))
pos_queue.append([
h3d.env.cam.pos.x, h3d.env.cam.pos.y,
h3d.env.cam.pos.z, h3d.env.cam.yaw
])
if episode_done == True:
break
# query controller to continue or not
controller_action_in = Variable(
torch.LongTensor(1, 1).fill_(action).cuda())
controller_scores = nav_model.controller_step(
img_feat_var, controller_action_in,
planner_hidden[0])
controller_prob = F.softmax(
controller_scores, dim=1)
controller_log_prob = F.log_softmax(
controller_scores, dim=1)
controller_action = controller_prob.multinomial(
).data
if int(controller_action[0]
) == 1 and controller_action_counter < 4:
controller_action_counter += 1
controller_step = True
else:
controller_action_counter = 0
controller_step = False
controller_action.fill_(0)
controller_log_prob = controller_log_prob.gather(
1, Variable(controller_action))
controller_log_probs.append(
controller_log_prob.cpu())
controller_action = int(
controller_action.cpu().numpy()[0, 0])
controller_actions.append(controller_action)
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
# run answerer here
ans_acc = [0]
if action == 3:
if len(pos_queue) < 5:
pos_queue = train_loader.dataset.episode_pos_queue[len(
pos_queue) - 5:] + pos_queue
images = train_loader.dataset.get_frames(
h3d, pos_queue[-5:], preprocess=True)
images_var = Variable(
torch.from_numpy(images).cuda()).view(
1, 5, 3, 224, 224)
scores, att_probs = ans_model(images_var, question_var)
ans_acc, ans_rank = vqa_metrics.compute_ranks(
scores.data.cpu(), answer)
vqa_metrics.update([ans_acc, ans_rank, 1.0 / ans_rank])
rewards.append(h3d.success_reward * ans_acc[0])
R = torch.zeros(1, 1)
planner_loss = 0
controller_loss = 0
planner_rev_idx = -1
for i in reversed(range(len(rewards))):
R = 0.99 * R + rewards[i]
advantage = R - nav_metrics.metrics[2][1]
if i < len(controller_actions):
controller_loss = controller_loss - controller_log_probs[i] * Variable(
advantage)
if controller_actions[i] == 0 and planner_rev_idx + len(planner_log_probs) >= 0:
planner_loss = planner_loss - planner_log_probs[planner_rev_idx] * Variable(
advantage)
planner_rev_idx -= 1
elif planner_rev_idx + len(planner_log_probs) >= 0:
planner_loss = planner_loss - planner_log_probs[planner_rev_idx] * Variable(
advantage)
planner_rev_idx -= 1
controller_loss /= max(1, len(controller_log_probs))
planner_loss /= max(1, len(planner_log_probs))
optim.zero_grad()
if isinstance(planner_loss, float) == False and isinstance(
controller_loss, float) == False:
p_losses.append(planner_loss.data[0, 0])
c_losses.append(controller_loss.data[0, 0])
reward_list.append(np.sum(rewards))
episode_length_list.append(episode_length)
(planner_loss + controller_loss).backward()
ensure_shared_grads(nav_model.cpu(), shared_nav_model)
optim.step()
if len(reward_list) > 50:
nav_metrics.update([
p_losses, c_losses, reward_list,
episode_length_list
])
print(nav_metrics.get_stat_string())
if args.to_log == 1:
nav_metrics.dump_log()
if nav_metrics.metrics[2][1] > 0.35:
mult = min(mult + 0.1, 1.0)
p_losses, c_losses, reward_list, episode_length_list = [], [], [], []
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
if args.to_cache == False:
train_loader.dataset._load_envs(
start_idx=0, in_order=True)
else:
done = True
epoch += 1
def eval(rank, args, shared_nav_model, shared_ans_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.model_type == 'pacman':
model_kwargs = {'question_vocab': load_vocab(args.vocab_json)}
nav_model = NavPlannerControllerModel(**model_kwargs)
else:
exit()
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
ans_model = VqaLstmCnnAttentionModel(**model_kwargs)
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'target_obj_conn_map_dir': args.target_obj_conn_map_dir,
'map_resolution': args.map_resolution,
'batch_size': 1,
'input_type': args.model_type,
'num_frames': 5,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': False
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_nav_log_path = os.path.join(args.log_dir,
'nav_eval_' + str(rank) + '.json')
args.output_ans_log_path = os.path.join(args.log_dir,
'ans_eval_' + str(rank) + '.json')
t, epoch, best_eval_acc = 0, 0, 0.0
while epoch < int(args.max_epochs):
start_time = time.time()
invalids = []
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
ans_model.load_state_dict(shared_ans_model.state_dict())
ans_model.eval()
ans_model.cuda()
# that's a lot of numbers
nav_metrics = NavMetric(
info={'split': args.eval_split,
'thread': rank},
metric_names=[
'd_0_10', 'd_0_30', 'd_0_50', 'd_T_10', 'd_T_30', 'd_T_50',
'd_D_10', 'd_D_30', 'd_D_50', 'd_min_10', 'd_min_30',
'd_min_50', 'r_T_10', 'r_T_30', 'r_T_50', 'r_e_10', 'r_e_30',
'r_e_50', 'stop_10', 'stop_30', 'stop_50', 'ep_len_10',
'ep_len_30', 'ep_len_50'
],
log_json=args.output_nav_log_path)
vqa_metrics = VqaMetric(
info={'split': args.eval_split,
'thread': rank},
metric_names=[
'accuracy_10', 'accuracy_30', 'accuracy_50', 'mean_rank_10',
'mean_rank_30', 'mean_rank_50', 'mean_reciprocal_rank_10',
'mean_reciprocal_rank_30', 'mean_reciprocal_rank_50'
],
log_json=args.output_ans_log_path)
if 'pacman' in args.model_type:
done = False
while done == False:
for batch in tqdm(eval_loader):
nav_model.load_state_dict(shared_nav_model.state_dict())
nav_model.eval()
nav_model.cuda()
idx, question, answer, actions, action_length = batch
metrics_slug = {}
h3d = eval_loader.dataset.episode_house
# evaluate at multiple initializations
for i in [10, 30, 50]:
t += 1
if i > action_length[0]:
invalids.append([idx[0], i])
continue
question_var = Variable(question.cuda())
controller_step = False
planner_hidden = nav_model.planner_nav_rnn.init_hidden(
1)
# forward through planner till spawn
planner_actions_in, planner_img_feats, controller_step, controller_action_in, controller_img_feat, init_pos = eval_loader.dataset.get_hierarchical_features_till_spawn(
actions[0, :action_length[0] + 1].numpy(), i)
planner_actions_in_var = Variable(
planner_actions_in.cuda())
planner_img_feats_var = Variable(
planner_img_feats.cuda())
for step in range(planner_actions_in.size(0)):
planner_scores, planner_hidden = nav_model.planner_step(
question_var, planner_img_feats_var[step].view(
1, 1,
3200), planner_actions_in_var[step].view(
1, 1), planner_hidden)
if controller_step == True:
controller_img_feat_var = Variable(
controller_img_feat.cuda())
controller_action_in_var = Variable(
torch.LongTensor(1, 1).fill_(
int(controller_action_in)).cuda())
controller_scores = nav_model.controller_step(
controller_img_feat_var.view(1, 1, 3200),
controller_action_in_var.view(1, 1),
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1:
controller_step = True
else:
controller_step = False
action = int(controller_action_in)
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
else:
prob = F.softmax(planner_scores, dim=1)
action = int(prob.max(1)[1].data.cpu().numpy()[0])
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
h3d.env.reset(
x=init_pos[0], y=init_pos[2], yaw=init_pos[3])
init_dist_to_target = h3d.get_dist_to_target(
h3d.env.cam.pos)
if init_dist_to_target < 0: # unreachable
invalids.append([idx[0], i])
continue
episode_length = 0
episode_done = True
controller_action_counter = 0
dists_to_target, pos_queue, pred_actions = [
init_dist_to_target
], [init_pos], []
planner_actions, controller_actions = [], []
if action != 3:
# take the first step
img, _, _ = h3d.step(action)
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = eval_loader.dataset.cnn(
Variable(img.view(1, 3, 224,
224).cuda())).view(
1, 1, 3200)
for step in range(args.max_episode_length):
episode_length += 1
if controller_step == False:
planner_scores, planner_hidden = nav_model.planner_step(
question_var, img_feat_var,
Variable(action_in), planner_hidden)
prob = F.softmax(planner_scores, dim=1)
action = int(
prob.max(1)[1].data.cpu().numpy()[0])
planner_actions.append(action)
pred_actions.append(action)
img, _, episode_done = h3d.step(action)
episode_done = episode_done or episode_length >= args.max_episode_length
img = torch.from_numpy(img.transpose(
2, 0, 1)).float() / 255.0
img_feat_var = eval_loader.dataset.cnn(
Variable(img.view(1, 3, 224, 224)
.cuda())).view(1, 1, 3200)
dists_to_target.append(
h3d.get_dist_to_target(h3d.env.cam.pos))
pos_queue.append([
h3d.env.cam.pos.x, h3d.env.cam.pos.y,
h3d.env.cam.pos.z, h3d.env.cam.yaw
])
if episode_done == True:
break
# query controller to continue or not
controller_action_in = Variable(
torch.LongTensor(1,
1).fill_(action).cuda())
controller_scores = nav_model.controller_step(
img_feat_var, controller_action_in,
planner_hidden[0])
prob = F.softmax(controller_scores, dim=1)
controller_action = int(
prob.max(1)[1].data.cpu().numpy()[0])
if controller_action == 1 and controller_action_counter < 4:
controller_action_counter += 1
controller_step = True
else:
controller_action_counter = 0
controller_step = False
controller_action = 0
controller_actions.append(controller_action)
action_in = torch.LongTensor(
1, 1).fill_(action + 1).cuda()
# run answerer here
if len(pos_queue) < 5:
pos_queue = eval_loader.dataset.episode_pos_queue[len(
pos_queue) - 5:] + pos_queue
images = eval_loader.dataset.get_frames(
h3d, pos_queue[-5:], preprocess=True)
images_var = Variable(
torch.from_numpy(images).cuda()).view(
1, 5, 3, 224, 224)
scores, att_probs = ans_model(images_var, question_var)
ans_acc, ans_rank = vqa_metrics.compute_ranks(
scores.data.cpu(), answer)
pred_answer = scores.max(1)[1].data[0]
print('[Q_GT]', ' '.join([
eval_loader.dataset.vocab['questionIdxToToken'][x]
for x in question[0] if x != 0
]))
print('[A_GT]', eval_loader.dataset.vocab[
'answerIdxToToken'][answer[0]])
print('[A_PRED]', eval_loader.dataset.vocab[
'answerIdxToToken'][pred_answer])
# compute stats
metrics_slug['accuracy_' + str(i)] = ans_acc[0]
metrics_slug['mean_rank_' + str(i)] = ans_rank[0]
metrics_slug['mean_reciprocal_rank_'
+ str(i)] = 1.0 / ans_rank[0]
metrics_slug['d_0_' + str(i)] = dists_to_target[0]
metrics_slug['d_T_' + str(i)] = dists_to_target[-1]
metrics_slug['d_D_' + str(
i)] = dists_to_target[0] - dists_to_target[-1]
metrics_slug['d_min_' + str(i)] = np.array(
dists_to_target).min()
metrics_slug['ep_len_' + str(i)] = episode_length
if action == 3:
metrics_slug['stop_' + str(i)] = 1
else:
metrics_slug['stop_' + str(i)] = 0
inside_room = []
for p in pos_queue:
inside_room.append(
h3d.is_inside_room(
p, eval_loader.dataset.target_room))
if inside_room[-1] == True:
metrics_slug['r_T_' + str(i)] = 1
else:
metrics_slug['r_T_' + str(i)] = 0
if any([x == True for x in inside_room]) == True:
metrics_slug['r_e_' + str(i)] = 1
else:
metrics_slug['r_e_' + str(i)] = 0
# navigation metrics
metrics_list = []
for i in nav_metrics.metric_names:
if i not in metrics_slug:
metrics_list.append(nav_metrics.metrics[
nav_metrics.metric_names.index(i)][0])
else:
metrics_list.append(metrics_slug[i])
nav_metrics.update(metrics_list)
# vqa metrics
metrics_list = []
for i in vqa_metrics.metric_names:
if i not in metrics_slug:
metrics_list.append(vqa_metrics.metrics[
vqa_metrics.metric_names.index(i)][0])
else:
metrics_list.append(metrics_slug[i])
vqa_metrics.update(metrics_list)
try:
print(nav_metrics.get_stat_string(mode=0))
print(vqa_metrics.get_stat_string(mode=0))
except:
pass
print('epoch', epoch)
print('invalids', len(invalids))
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
epoch += 1
# checkpoint if best val accuracy
if vqa_metrics.metrics[2][0] > best_eval_acc: # ans_acc_50
best_eval_acc = vqa_metrics.metrics[2][0]
if epoch % args.eval_every == 0 and args.to_log == 1:
vqa_metrics.dump_log()
nav_metrics.dump_log()
model_state = get_state(nav_model)
aad = dict(args.__dict__)
ad = {}
for i in aad:
if i[0] != '_':
ad[i] = aad[i]
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_ans_50_%.04f.pt' % (
args.checkpoint_dir, epoch, best_eval_acc)
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_ans_acc_50:%.04f]' % best_eval_acc)
eval_loader.dataset._load_envs(start_idx=0, in_order=True)
def train(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(filter(lambda p: p.requires_grad,
shared_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
eval_loader_kwargs = {
'questions_h5': args.val_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'val',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
eval_output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
eval_metrics = VqaMetric(
info={'split': 'eval'},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=eval_output_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
eval_loader = EqaDataLoader(**eval_loader_kwargs)
if args.input_type == 'ques,image':
train_loader.dataset._load_envs(start_idx=0, in_order=True)
print('train_loader has %d samples' % len(train_loader.dataset))
print('eval_loader has %d samples' % len(eval_loader.dataset))
t, epoch = 0, 0
best_eval_acc = 0
mean_rank = []
while epoch < int(args.max_epochs):
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
elif args.input_type == 'ques,image':
t += 1
#TRAIN
model.train()
model.cuda()
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
#p = 0
while done == False:
#print("Here now: ", epoch, p)
#p+=1
for num, batch in enumerate(train_loader):
#pp=0
# done = True
# break
model.load_state_dict(shared_model.state_dict())
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
#zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.item(), accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
# SATYEN:
if args.to_cache == False:
train_loader.dataset._load_envs(start_idx=0,
in_order=True)
else:
done = True
if epoch % args.eval_every == 0:
best_eval_acc = eval(0,
args,
model,
best_eval_acc=best_eval_acc,
epoch=epoch)
epoch += 1
def train(rank, args, shared_model, use_vision, use_language):
gpu_idx = args.gpus.index(args.gpus[rank % len(args.gpus)])
torch.cuda.set_device(gpu_idx)
print("train gpu:" + str(gpu_idx) + " assigned")
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(filter(lambda p: p.requires_grad,
shared_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
metrics = VqaMetric(
info={
'split': 'train',
'thread': rank
},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
if args.input_type == 'ques,image':
train_loader.dataset._load_envs(start_idx=0, in_order=True)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
while epoch < int(args.max_epochs):
print("train gpu:" + str(gpu_idx) + " running epoch " + str(epoch))
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
# If not using language, replace each question with a start and end token back to back.
if not use_language:
questions = torch.zeros_like(questions)
questions.fill_(
model_kwargs['vocab']['questionTokenToIdx']['<NULL>'])
questions[:, 0] = model_kwargs['vocab'][
'questionTokenToIdx']['<START>']
questions[:, 1] = model_kwargs['vocab'][
'questionTokenToIdx']['<END>']
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers, images, _, _, _ = batch
# If not using language, replace each question with a start and end token back to back.
if not use_language:
questions = torch.zeros_like(questions)
questions.fill_(model_kwargs['vocab']
['questionTokenToIdx']['<NULL>'])
questions[:, 0] = model_kwargs['vocab'][
'questionTokenToIdx']['<START>']
questions[:, 1] = model_kwargs['vocab'][
'questionTokenToIdx']['<END>']
# If not using vision, replace all image feature data with zeros.
if not use_vision:
images = torch.zeros_like(images)
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
metrics.update(
[loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
# Set shared epoch when it finishes on the training side
with open(args.identifier + '.shared_epoch.tmp', 'w') as f:
f.write(str(epoch))
epoch += 1
def eval(rank, args, shared_model, best_eval_acc=0, checkpoint=None, epoch=0):
print('Evaluating at {} epoch, with Acc {} ##################'.format(
epoch, best_eval_acc))
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
eval_loader_kwargs = {
'questions_h5': getattr(args, args.eval_split + '_h5'),
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': 1,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': args.eval_split,
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank % len(args.gpus)],
'to_cache': args.to_cache
}
eval_loader = EqaDataLoader(**eval_loader_kwargs)
print('eval_loader has %d samples' % len(eval_loader.dataset))
args.output_log_path = os.path.join(args.log_dir,
'eval_' + str(rank) + '.json')
# t, best_eval_acc = 0, 0, 0
t = 0
mean_rank = []
model.load_state_dict(shared_model.state_dict())
model.eval()
metrics = VqaMetric(
info={'split': args.eval_split},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
if args.input_type == 'ques':
for batch in eval_loader:
t += 1
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = eval_loader.dataset._check_if_all_envs_loaded()
while done == False:
mean_rank = []
for num, batch in enumerate(eval_loader):
# if num>0:
# done= True
# break
t += 1
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
images_numpy = images_var.data.cpu().numpy()
question_numpy = questions_var.data.cpu().numpy()
answers_numpy = answers_var.data.cpu().numpy()
scores, att_probs = model(images_var, questions_var)
scores_numpy = scores.data.cpu().numpy()
att_probs_numpy = att_probs.data.cpu().numpy()
loss = lossFn(scores, answers_var)
# update metrics
accuracy, ranks = metrics.compute_ranks(
scores.data.cpu(), answers)
mean_rank.extend(ranks)
print("Batch Mean Ranks", sum(ranks) / len(ranks))
metrics.update([loss.item(), accuracy, ranks, 1.0 / ranks])
print(metrics.get_stat_string(mode=0))
print("Mean Rank for eval", sum(mean_rank) / len(mean_rank))
if all_envs_loaded == False:
eval_loader.dataset._load_envs()
if len(eval_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
# checkpoint if best val accuracy
if metrics.metrics[1][0] >= best_eval_acc:
best_eval_acc = metrics.metrics[1][0]
metrics.dump_log()
model_state = get_state(model)
if args.checkpoint_path != False and checkpoint is not None:
ad = checkpoint['args']
else:
ad = args.__dict__
checkpoint = {'args': ad, 'state': model_state, 'epoch': epoch}
checkpoint_path = '%s/epoch_%d_accuracy_%d.pt' % (
args.checkpoint_dir, epoch, int(best_eval_acc * 100))
print('Saving checkpoint to %s' % checkpoint_path)
torch.save(checkpoint, checkpoint_path)
print('[best_eval_accuracy:%.04f]' % best_eval_acc)
print("Mean Rank for eval", sum(mean_rank) / len(mean_rank))
return best_eval_acc
def train(rank, args, shared_model):
torch.cuda.set_device(args.gpus.index(args.gpus[rank % len(args.gpus)]))
if args.input_type == 'ques':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmModel(**model_kwargs)
elif args.input_type == 'ques,image':
model_kwargs = {'vocab': load_vocab(args.vocab_json)}
model = VqaLstmCnnAttentionModel(**model_kwargs)
lossFn = torch.nn.CrossEntropyLoss().cuda()
optim = torch.optim.Adam(
filter(lambda p: p.requires_grad, shared_model.parameters()),
lr=args.learning_rate)
train_loader_kwargs = {
'questions_h5': args.train_h5,
'data_json': args.data_json,
'vocab': args.vocab_json,
'batch_size': args.batch_size,
'input_type': args.input_type,
'num_frames': args.num_frames,
'split': 'train',
'max_threads_per_gpu': args.max_threads_per_gpu,
'gpu_id': args.gpus[rank%len(args.gpus)],
'to_cache': args.to_cache
}
args.output_log_path = os.path.join(args.log_dir,
'train_' + str(rank) + '.json')
metrics = VqaMetric(
info={'split': 'train',
'thread': rank},
metric_names=['loss', 'accuracy', 'mean_rank', 'mean_reciprocal_rank'],
log_json=args.output_log_path)
train_loader = EqaDataLoader(**train_loader_kwargs)
if args.input_type == 'ques,image':
train_loader.dataset._load_envs(start_idx=0, in_order=True)
print('train_loader has %d samples' % len(train_loader.dataset))
t, epoch = 0, 0
while epoch < int(args.max_epochs):
if args.input_type == 'ques':
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
scores = model(questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
elif args.input_type == 'ques,image':
done = False
all_envs_loaded = train_loader.dataset._check_if_all_envs_loaded()
while done == False:
for batch in train_loader:
t += 1
model.load_state_dict(shared_model.state_dict())
model.train()
model.cuda()
idx, questions, answers, images, _, _, _ = batch
questions_var = Variable(questions.cuda())
answers_var = Variable(answers.cuda())
images_var = Variable(images.cuda())
scores, att_probs = model(images_var, questions_var)
loss = lossFn(scores, answers_var)
# zero grad
optim.zero_grad()
# update metrics
accuracy, ranks = metrics.compute_ranks(scores.data.cpu(), answers)
metrics.update([loss.data[0], accuracy, ranks, 1.0 / ranks])
# backprop and update
loss.backward()
ensure_shared_grads(model.cpu(), shared_model)
optim.step()
if t % args.print_every == 0:
print(metrics.get_stat_string())
if args.to_log == 1:
metrics.dump_log()
if all_envs_loaded == False:
train_loader.dataset._load_envs(in_order=True)
if len(train_loader.dataset.pruned_env_set) == 0:
done = True
else:
done = True
epoch += 1