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train_parallel.py
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train_parallel.py
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import os
os.environ["CUDA_VISIBLE_DEVICES"] = "0,1"
import torch
import torch.nn.functional as F
import sys
import numpy as np
from datetime import datetime
from torchvision.utils import make_grid
from Models.model import TMSOD
from Models.data import SalObjDataset, test_dataset
from Models.utils import clip_gradient, adjust_lr
from tensorboardX import SummaryWriter
import logging
import torch.backends.cudnn as cudnn
from options import opt
import torch.nn as nn
from smooth_loss import get_saliency_smoothness
import argparse
import Models.misc as utils
from Models.default import _C as cfg
import random
from torch.utils.data import DataLoader
import Models.samplers as samplers
cudnn.benchmark = True
cfg = cfg
utils.init_distributed_mode(cfg.TRAIN)
device = torch.device(cfg.TRAIN.device)
seed = cfg.TRAIN.seed + utils.get_rank()
torch.manual_seed(seed)
np.random.seed(seed)
random.seed(seed)
model = TMSOD()
if (opt.load is not None):
model.load_pre(opt.load)
print('load model from ', opt.load)
model.to(device)
params = model.parameters()
optimizer = torch.optim.AdamW(params, lr=opt.lr, weight_decay=cfg.TRAIN.weight_decay)
lr_scheduler = torch.optim.lr_scheduler.StepLR(optimizer, cfg.TRAIN.lr_drop)
train_image_root = opt.rgb_label_root
train_gt_root = opt.gt_label_root
val_image_root = opt.val_rgb_root
val_gt_root = opt.val_gt_root
save_path = opt.save_path
if not os.path.exists(save_path):
os.makedirs(save_path)
print('load data...')
dataset_train = SalObjDataset(train_image_root, train_gt_root, trainsize=opt.trainsize)
dataset_test = test_dataset(val_image_root, val_gt_root, opt.trainsize)
if cfg.TRAIN.distributed:
sampler_train = samplers.DistributedSampler(dataset_train)
else:
sampler_train = torch.utils.data.RandomSampler(dataset_train)
batch_sampler_train = torch.utils.data.BatchSampler(
sampler_train, opt.batchsize, drop_last=True)
train_loader = DataLoader(dataset_train, batch_sampler=batch_sampler_train,
num_workers=16,
pin_memory=True)
total_step = len(train_loader)
if cfg.TRAIN.distributed:
model = torch.nn.parallel.DistributedDataParallel(model, device_ids=[cfg.TRAIN.gpu], find_unused_parameters=True)
logging.basicConfig(filename=save_path + 'log.log', format='[%(asctime)s-%(filename)s-%(levelname)s:%(message)s]',
level=logging.INFO, filemode='a', datefmt='%Y-%m-%d %I:%M:%S %p')
logging.info("BBSNet_unif-Train")
logging.info("Config")
logging.info(
'epoch:{};lr:{};batchsize:{};trainsize:{};clip:{};decay_rate:{};load:{};save_path:{};decay_epoch:{}'.format(
opt.epoch, opt.lr, opt.batchsize, opt.trainsize, opt.clip, opt.decay_rate, opt.load, save_path,
opt.decay_epoch))
CE = torch.nn.BCEWithLogitsLoss()
step = 0
best_mae = 1
best_epoch = 0
print(len(train_loader))
class SoftDiceLoss(nn.Module):
def __init__(self, weight=None, size_average=True):
super(SoftDiceLoss, self).__init__()
def forward(self, logits, targets):
num = targets.size(0)
smooth = 1
probs = torch.sigmoid(logits)
m1 = probs.view(num, -1)
m2 = targets.view(num, -1)
intersection = (m1 * m2)
score = 2. * (intersection.sum(1) + smooth) / (m1.sum(1) + m2.sum(1) + smooth)
score = 1 - score.sum() / num
return score
dice = SoftDiceLoss()
def train(train_loader, model, optimizer, epoch, save_path):
global step
model.train()
loss_all = 0
epoch_step = 0
if cfg.TRAIN.distributed:
sampler_train.set_epoch(epoch)
try:
for i, (images, gts) in enumerate(train_loader, start=1):
optimizer.zero_grad()
images = images.to(device)
gts = gts.to(device)
out = model(images)
sml = get_saliency_smoothness(torch.sigmoid(out), gts)
loss1_fusion = F.binary_cross_entropy_with_logits(out, gts)
dice_loss = dice(out, gts)
loss_seg = loss1_fusion + sml + dice_loss
loss = loss_seg
loss.backward()
clip_gradient(optimizer, opt.clip)
optimizer.step()
step += 1
epoch_step += 1
loss_all += loss.data
if i % 50 == 0 or i == total_step or i == 1:
print(
'{} Epoch [{:03d}/{:03d}], Step [{:04d}/{:04d}], loss: {:.4f} sml: {:.4f} loss1_fusion: {:0.4f} dice: {:0.4f}'.
format(datetime.now(), epoch, opt.epoch, i, total_step, loss.data, sml.data, loss1_fusion.data,
dice_loss.data))
logging.info(
'#TRAIN#:Epoch [{:03d}/{:03d}], Step [{:04d}/{:04d}], loss: {:.4f} sml: {:.4f} loss1_fusion: {:0.4f} dice: {:0.4f}'.
format(epoch, opt.epoch, i, total_step, loss.data, sml.data, loss1_fusion.data, dice_loss.data))
loss_all /= epoch_step
logging.info('#TRAIN#:Epoch [{:03d}/{:03d}], Loss_AVG: {:.4f}'.format(epoch, opt.epoch, loss_all))
if (epoch) % 10 == 0 and epoch > 40:
torch.save(model.module.state_dict(), save_path + 'UniSOD_epoch_{}.pth'.format(epoch))
except KeyboardInterrupt:
print('Keyboard Interrupt: save model and exit.')
if not os.path.exists(save_path):
os.makedirs(save_path)
torch.save(model.module.state_dict(), save_path + 'UniSOD_epoch_{}.pth'.format(epoch + 1))
print('save checkpoints successfully!')
raise
def val(test_loader, model, epoch, save_path):
global best_mae, best_epoch
model.eval()
with torch.no_grad():
mae_sum = 0
for i in range(test_loader.size):
image, gt, name, img_for_post = test_loader.load_data()
gt = np.asarray(gt, np.float32)
gt /= (gt.max() + 1e-8)
image = image.cuda()
out= model(image)
res = out
res = F.upsample(res, size=gt.shape, mode='bilinear', align_corners=False)
res = res.sigmoid().data.cpu().numpy().squeeze()
res = (res - res.min()) / (res.max() - res.min() + 1e-8)
mae_sum += np.sum(np.abs(res - gt)) * 1.0 / (gt.shape[0] * gt.shape[1])
mae = mae_sum / test_loader.size
print('Epoch: {} MAE: {} #### bestMAE: {} bestEpoch: {}'.format(epoch, mae, best_mae, best_epoch))
if epoch == 1:
best_mae = mae
else:
if mae < best_mae:
best_mae = mae
best_epoch = epoch
torch.save(model.state_dict(), save_path + 'UniSOD_epoch_best.pth')
print('best epoch:{}'.format(epoch))
logging.info('#TEST#:Epoch:{} MAE:{} bestEpoch:{} bestMAE:{}'.format(epoch, mae, best_epoch, best_mae))
if __name__ == '__main__':
print("Start train...")
for epoch in range(1, opt.epoch):
train(train_loader, model, optimizer, epoch, save_path)
if epoch >= 60:
val(dataset_test, model, epoch, save_path)