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--freeze fix
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Fix for #6038
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glenn-jocher authored Dec 20, 2021
1 parent b8a4bab commit 77d0a5c
Showing 1 changed file with 3 additions and 3 deletions.
6 changes: 3 additions & 3 deletions train.py
Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ def train(hyp, # path/to/hyp.yaml or hyp dictionary
device,
callbacks
):
save_dir, epochs, batch_size, weights, single_cls, evolve, data, cfg, resume, noval, nosave, workers, freeze, = \
save_dir, epochs, batch_size, weights, single_cls, evolve, data, cfg, resume, noval, nosave, workers, freeze = \
Path(opt.save_dir), opt.epochs, opt.batch_size, opt.weights, opt.single_cls, opt.evolve, opt.data, opt.cfg, \
opt.resume, opt.noval, opt.nosave, opt.workers, opt.freeze

Expand Down Expand Up @@ -124,7 +124,7 @@ def train(hyp, # path/to/hyp.yaml or hyp dictionary
model = Model(cfg, ch=3, nc=nc, anchors=hyp.get('anchors')).to(device) # create

# Freeze
freeze = [f'model.{x}.' for x in (freeze if isinstance(freeze, list) else range(freeze))] # layers to freeze
freeze = [f'model.{x}.' for x in (freeze if len(freeze) > 1 else range(freeze[0]))] # layers to freeze
for k, v in model.named_parameters():
v.requires_grad = True # train all layers
if any(x in k for x in freeze):
Expand Down Expand Up @@ -469,7 +469,7 @@ def parse_opt(known=False):
parser.add_argument('--linear-lr', action='store_true', help='linear LR')
parser.add_argument('--label-smoothing', type=float, default=0.0, help='Label smoothing epsilon')
parser.add_argument('--patience', type=int, default=100, help='EarlyStopping patience (epochs without improvement)')
parser.add_argument('--freeze', nargs='+', type=int, default=0, help='Freeze layers: backbone=10, first3=0 1 2')
parser.add_argument('--freeze', nargs='+', type=int, default=[0], help='Freeze layers: backbone=10, first3=0 1 2')
parser.add_argument('--save-period', type=int, default=-1, help='Save checkpoint every x epochs (disabled if < 1)')
parser.add_argument('--local_rank', type=int, default=-1, help='DDP parameter, do not modify')

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