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44 lines
1.4 KiB
44 lines
1.4 KiB
4 years ago
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import torch
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import os
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from torch import nn
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import numpy as np
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import torch.nn.functional
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from termcolor import colored
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from .logger import get_logger
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def save_model(net, optim, scheduler, recorder, is_best=False):
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model_dir = os.path.join(recorder.work_dir, 'output')
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os.system('mkdir -p {}'.format(model_dir))
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epoch = recorder.epoch
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ckpt_name = 'best' if is_best else epoch
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torch.save({
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'net': net.state_dict(),
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'optim': optim.state_dict(),
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'scheduler': scheduler.state_dict(),
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'recorder': recorder.state_dict(),
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'epoch': epoch
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}, os.path.join(model_dir, '{}.pth'.format(ckpt_name)))
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def load_network_specified(net, model_dir, logger=None):
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pretrained_net = torch.load(model_dir)['net']
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net_state = net.state_dict()
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state = {}
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for k, v in pretrained_net.items():
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if k not in net_state.keys() or v.size() != net_state[k].size():
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if logger:
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logger.info('skip weights: ' + k)
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continue
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state[k] = v
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net.load_state_dict(state, strict=False)
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def load_network(net, model_dir, finetune_from=None, logger=None):
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if finetune_from:
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if logger:
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logger.info('Finetune model from: ' + finetune_from)
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load_network_specified(net, finetune_from, logger)
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return
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pretrained_model = torch.load(model_dir)
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net.load_state_dict(pretrained_model['net'], strict=True)
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