Merge branch 'logger' into features. Change 'logger' to '_logger'.

.github/workflows/autosquash.yml

@@ -0,0 +1,39 @@
+name: Autosquash
+on:
+  check_run:
+    types:
+      # Check runs completing successfully can unblock the
+      # corresponding pull requests and make them mergeable.
+      - completed
+  pull_request:
+    types:
+      # A closed pull request makes the checks on the other
+      # pull request on the same base outdated.
+      - closed
+      # Adding the autosquash label to a pull request can
+      # trigger an update or a merge.
+      - labeled
+  pull_request_review:
+    types:
+      # Review approvals can unblock the pull request and
+      # make it mergeable.
+      - submitted
+  # Success statuses can unblock the corresponding
+  # pull requests and make them mergeable.
+  status: {}
+
+jobs:
+  autosquash:
+    name: Autosquash
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: tibdex/autosquash@v2
+        with:
+          # We can't use the built-in secrets.GITHUB_TOKEN yet because of this limitation:
+          # https://github.community/t5/GitHub-Actions/Triggering-a-new-workflow-from-another-workflow/td-p/31676
+          # In the meantime, use a token granting write access on the repo:
+          # - a GitHub App token
+          #   See https://github.com/marketplace/actions/github-app-token.
+          # - a personal access token
+          #   See https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line.
+          github_token: ${{ secrets.AUTOSQUASH_TOKEN }}

inference.py

@@ -17,6 +17,8 @@ from timm.data import Dataset, create_loader, resolve_data_config
 from timm.utils import AverageMeter, setup_default_logging
 
 torch.backends.cudnn.benchmark = True
+_logger = logging.getLogger('inference')
+
 
 parser = argparse.ArgumentParser(description='PyTorch ImageNet Inference')
 parser.add_argument('data', metavar='DIR',
@@ -67,7 +69,7 @@ def main():
         pretrained=args.pretrained,
         checkpoint_path=args.checkpoint)
 
-    logging.info('Model %s created, param count: %d' %
+    _logger.info('Model %s created, param count: %d' %
                  (args.model, sum([m.numel() for m in model.parameters()])))
 
     config = resolve_data_config(vars(args), model=model)
@@ -107,7 +109,7 @@ def main():
             end = time.time()
 
             if batch_idx % args.log_freq == 0:
-                logging.info('Predict: [{0}/{1}] Time {batch_time.val:.3f} ({batch_time.avg:.3f})'.format(
+                _logger.info('Predict: [{0}/{1}] Time {batch_time.val:.3f} ({batch_time.avg:.3f})'.format(
                     batch_idx, len(loader), batch_time=batch_time))
 
     topk_ids = np.concatenate(topk_ids, axis=0).squeeze()

timm/data/config.py

@@ -2,6 +2,9 @@ import logging
 from .constants import *
 
 
+_logger = logging.getLogger(__name__)
+
+
 def resolve_data_config(args, default_cfg={}, model=None, verbose=True):
     new_config = {}
     default_cfg = default_cfg
@@ -65,8 +68,8 @@ def resolve_data_config(args, default_cfg={}, model=None, verbose=True):
         new_config['crop_pct'] = default_cfg['crop_pct']
 
     if verbose:
-        logging.info('Data processing configuration for current model + dataset:')
+        _logger.info('Data processing configuration for current model + dataset:')
         for n, v in new_config.items():
-            logging.info('\t%s: %s' % (n, str(v)))
+            _logger.info('\t%s: %s' % (n, str(v)))
 
     return new_config

timm/models/efficientnet_builder.py

@@ -18,10 +18,12 @@ from .layers import CondConv2d, get_condconv_initializer
 
 __all__ = ["EfficientNetBuilder", "decode_arch_def", "efficientnet_init_weights"]
 
+_logger = logging.getLogger(__name__)
+
 
 def _log_info_if(msg, condition):
     if condition:
-        logging.info(msg)
+        _logger.info(msg)
 
 
 def _parse_ksize(ss):
@@ -233,7 +235,7 @@ class EfficientNetBuilder:
         self.drop_path_rate = drop_path_rate
         if feature_location == 'depthwise':
             # old 'depthwise' mode renamed 'expansion' to match TF impl, old expansion mode didn't make sense
-            logging.warning("feature_location=='depthwise' is deprecated, using 'expansion'")
+            _logger.warning("feature_location=='depthwise' is deprecated, using 'expansion'")
             feature_location = 'expansion'
         self.feature_location = feature_location
         assert feature_location in ('bottleneck', 'expansion', '')
@@ -291,7 +293,7 @@ class EfficientNetBuilder:
         """ Build the blocks
         Args:
             in_chs: Number of input-channels passed to first block
-            model_block_args: A list of lists, outer list defines stacks (block stages), inner
+            model_block_args: A list of lists, outer list defines stages, inner
                 list contains strings defining block configuration(s)
         Return:
              List of block stacks (each stack wrapped in nn.Sequential)

timm/models/helpers.py

@@ -12,6 +12,9 @@ from .features import FeatureListNet, FeatureDictNet, FeatureHookNet
 from .layers import Conv2dSame
 
 
+_logger = logging.getLogger(__name__)
+
+
 def load_state_dict(checkpoint_path, use_ema=False):
     if checkpoint_path and os.path.isfile(checkpoint_path):
         checkpoint = torch.load(checkpoint_path, map_location='cpu')
@@ -28,10 +31,10 @@ def load_state_dict(checkpoint_path, use_ema=False):
             state_dict = new_state_dict
         else:
             state_dict = checkpoint
-        logging.info("Loaded {} from checkpoint '{}'".format(state_dict_key, checkpoint_path))
+        _logger.info("Loaded {} from checkpoint '{}'".format(state_dict_key, checkpoint_path))
         return state_dict
     else:
-        logging.error("No checkpoint found at '{}'".format(checkpoint_path))
+        _logger.error("No checkpoint found at '{}'".format(checkpoint_path))
         raise FileNotFoundError()
 
 
@@ -59,13 +62,13 @@ def resume_checkpoint(model, checkpoint_path):
                 resume_epoch = checkpoint['epoch']
                 if 'version' in checkpoint and checkpoint['version'] > 1:
                     resume_epoch += 1  # start at the next epoch, old checkpoints incremented before save
-            logging.info("Loaded checkpoint '{}' (epoch {})".format(checkpoint_path, checkpoint['epoch']))
+            _logger.info("Loaded checkpoint '{}' (epoch {})".format(checkpoint_path, checkpoint['epoch']))
         else:
             model.load_state_dict(checkpoint)
-            logging.info("Loaded checkpoint '{}'".format(checkpoint_path))
+            _logger.info("Loaded checkpoint '{}'".format(checkpoint_path))
         return other_state, resume_epoch
     else:
-        logging.error("No checkpoint found at '{}'".format(checkpoint_path))
+        _logger.error("No checkpoint found at '{}'".format(checkpoint_path))
         raise FileNotFoundError()
 
 
@@ -73,7 +76,7 @@ def load_pretrained(model, cfg=None, num_classes=1000, in_chans=3, filter_fn=Non
     if cfg is None:
         cfg = getattr(model, 'default_cfg')
     if cfg is None or 'url' not in cfg or not cfg['url']:
-        logging.warning("Pretrained model URL is invalid, using random initialization.")
+        _logger.warning("Pretrained model URL is invalid, using random initialization.")
         return
 
     state_dict = model_zoo.load_url(cfg['url'], progress=False, map_location='cpu')
@@ -83,7 +86,7 @@ def load_pretrained(model, cfg=None, num_classes=1000, in_chans=3, filter_fn=Non
 
     if in_chans == 1:
         conv1_name = cfg['first_conv']
-        logging.info('Converting first conv (%s) from 3 to 1 channel' % conv1_name)
+        _logger.info('Converting first conv (%s) from 3 to 1 channel' % conv1_name)
         conv1_weight = state_dict[conv1_name + '.weight']
         state_dict[conv1_name + '.weight'] = conv1_weight.sum(dim=1, keepdim=True)
     elif in_chans != 3:

timm/models/hrnet.py

@@ -23,7 +23,7 @@ from .registry import register_model
 from .resnet import BasicBlock, Bottleneck  # leveraging ResNet blocks w/ additional features like SE
 
 _BN_MOMENTUM = 0.1
-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
 
 
 def _cfg(url='', **kwargs):
@@ -412,7 +412,7 @@ class HighResolutionModule(nn.Module):
         elif num_branches != len(num_inchannels):
             error_msg = 'NUM_BRANCHES({}) <> NUM_INCHANNELS({})'.format(num_branches, len(num_inchannels))
         if error_msg:
-            logger.error(error_msg)
+            _logger.error(error_msg)
             raise ValueError(error_msg)
 
     def _make_one_branch(self, branch_index, block, num_blocks, num_channels, stride=1):

timm/models/layers/test_time_pool.py

@@ -10,6 +10,9 @@ import torch.nn.functional as F
 from .adaptive_avgmax_pool import adaptive_avgmax_pool2d
 
 
+_logger = logging.getLogger(__name__)
+
+
 class TestTimePoolHead(nn.Module):
     def __init__(self, base, original_pool=7):
         super(TestTimePoolHead, self).__init__()
@@ -40,7 +43,7 @@ def apply_test_time_pool(model, config, args):
     if not args.no_test_pool and \
             config['input_size'][-1] > model.default_cfg['input_size'][-1] and \
             config['input_size'][-2] > model.default_cfg['input_size'][-2]:
-        logging.info('Target input size %s > pretrained default %s, using test time pooling' %
+        _logger.info('Target input size %s > pretrained default %s, using test time pooling' %
                      (str(config['input_size'][-2:]), str(model.default_cfg['input_size'][-2:])))
         model = TestTimePoolHead(model, original_pool=model.default_cfg['pool_size'])
         test_time_pool = True

timm/optim/__init__.py

@@ -5,4 +5,6 @@ from .radam import RAdam
 from .novograd import NovoGrad
 from .nvnovograd import NvNovoGrad
 from .lookahead import Lookahead
+from .adamp import AdamP
+from .sgdp import SGDP
 from .optim_factory import create_optimizer

timm/optim/adamp.py

@@ -0,0 +1,107 @@
+"""
+AdamP Optimizer Implementation copied from https://github.com/clovaai/AdamP/blob/master/adamp/adamp.py
+
+Paper: `Slowing Down the Weight Norm Increase in Momentum-based Optimizers` - https://arxiv.org/abs/2006.08217
+Code: https://github.com/clovaai/AdamP
+
+Copyright (c) 2020-present NAVER Corp.
+MIT license
+"""
+
+import torch
+import torch.nn as nn
+from torch.optim.optimizer import Optimizer, required
+import math
+
+class AdamP(Optimizer):
+    def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
+                 weight_decay=0, delta=0.1, wd_ratio=0.1, nesterov=False):
+        defaults = dict(lr=lr, betas=betas, eps=eps, weight_decay=weight_decay,
+                        delta=delta, wd_ratio=wd_ratio, nesterov=nesterov)
+        super(AdamP, self).__init__(params, defaults)
+
+    def _channel_view(self, x):
+        return x.view(x.size(0), -1)
+
+    def _layer_view(self, x):
+        return x.view(1, -1)
+
+    def _cosine_similarity(self, x, y, eps, view_func):
+        x = view_func(x)
+        y = view_func(y)
+
+        x_norm = x.norm(dim=1).add_(eps)
+        y_norm = y.norm(dim=1).add_(eps)
+        dot = (x * y).sum(dim=1)
+
+        return dot.abs() / x_norm / y_norm
+
+    def _projection(self, p, grad, perturb, delta, wd_ratio, eps):
+        wd = 1
+        expand_size = [-1] + [1] * (len(p.shape) - 1)
+        for view_func in [self._channel_view, self._layer_view]:
+
+            cosine_sim = self._cosine_similarity(grad, p.data, eps, view_func)
+
+            if cosine_sim.max() < delta / math.sqrt(view_func(p.data).size(1)):
+                p_n = p.data / view_func(p.data).norm(dim=1).view(expand_size).add_(eps)
+                perturb -= p_n * view_func(p_n * perturb).sum(dim=1).view(expand_size)
+                wd = wd_ratio
+
+                return perturb, wd
+
+        return perturb, wd
+
+    def step(self, closure=None):
+        loss = None
+        if closure is not None:
+            loss = closure()
+
+        for group in self.param_groups:
+            for p in group['params']:
+                if p.grad is None:
+                    continue
+
+                grad = p.grad.data
+                beta1, beta2 = group['betas']
+                nesterov = group['nesterov']
+
+                state = self.state[p]
+
+                # State initialization
+                if len(state) == 0:
+                    state['step'] = 0
+                    state['exp_avg'] = torch.zeros_like(p.data)
+                    state['exp_avg_sq'] = torch.zeros_like(p.data)
+
+                # Adam
+                exp_avg, exp_avg_sq = state['exp_avg'], state['exp_avg_sq']
+
+                state['step'] += 1
+                bias_correction1 = 1 - beta1 ** state['step']
+                bias_correction2 = 1 - beta2 ** state['step']
+
+                exp_avg.mul_(beta1).add_(1 - beta1, grad)
+                exp_avg_sq.mul_(beta2).addcmul_(1 - beta2, grad, grad)
+
+                denom = (exp_avg_sq.sqrt() / math.sqrt(bias_correction2)).add_(group['eps'])
+                step_size = group['lr'] / bias_correction1
+
+                if nesterov:
+                    perturb = (beta1 * exp_avg + (1 - beta1) * grad) / denom
+                else:
+                    perturb = exp_avg / denom
+
+                # Projection
+                wd_ratio = 1
+                if len(p.shape) > 1:
+                    perturb, wd_ratio = self._projection(p, grad, perturb, group['delta'], group['wd_ratio'], group['eps'])
+
+                # Weight decay
+                if group['weight_decay'] > 0:
+                    p.data.mul_(1 - group['lr'] * group['weight_decay'] * wd_ratio)
+
+                # Step
+                p.data.add_(-step_size, perturb)
+
+        return loss

timm/optim/optim_factory.py

@@ -3,7 +3,7 @@ Hacked together by / Copyright 2020 Ross Wightman
 """
 import torch
 from torch import optim as optim
-from timm.optim import Nadam, RMSpropTF, AdamW, RAdam, NovoGrad, NvNovoGrad, Lookahead
+from timm.optim import Nadam, RMSpropTF, AdamW, RAdam, NovoGrad, NvNovoGrad, Lookahead, AdamP, SGDP
 try:
     from apex.optimizers import FusedNovoGrad, FusedAdam, FusedLAMB, FusedSGD
     has_apex = True
@@ -63,6 +63,14 @@ def create_optimizer(args, model, filter_bias_and_bn=True):
     elif opt_lower == 'radam':
         optimizer = RAdam(
             parameters, lr=args.lr, weight_decay=weight_decay, eps=args.opt_eps)
+    elif opt_lower == 'adamp':        
+        optimizer = AdamP(
+            parameters, lr=args.lr, weight_decay=weight_decay, eps=args.opt_eps,
+            delta=0.1, wd_ratio=0.01, nesterov=True)
+    elif opt_lower == 'sgdp':        
+        optimizer = SGDP(
+            parameters, lr=args.lr, momentum=args.momentum, weight_decay=weight_decay, 
+            eps=args.opt_eps, nesterov=True)        
     elif opt_lower == 'adadelta':
         optimizer = optim.Adadelta(
             parameters, lr=args.lr, weight_decay=weight_decay, eps=args.opt_eps)

timm/optim/sgdp.py

@@ -0,0 +1,96 @@
+"""
+SGDP Optimizer Implementation copied from https://github.com/clovaai/AdamP/blob/master/adamp/sgdp.py
+
+Paper: `Slowing Down the Weight Norm Increase in Momentum-based Optimizers` - https://arxiv.org/abs/2006.08217
+Code: https://github.com/clovaai/AdamP
+
+Copyright (c) 2020-present NAVER Corp.
+MIT license
+"""
+
+import torch
+import torch.nn as nn
+from torch.optim.optimizer import Optimizer, required
+import math
+
+class SGDP(Optimizer):
+    def __init__(self, params, lr=required, momentum=0, dampening=0,
+                 weight_decay=0, nesterov=False, eps=1e-8, delta=0.1, wd_ratio=0.1):
+        defaults = dict(lr=lr, momentum=momentum, dampening=dampening, weight_decay=weight_decay,
+                        nesterov=nesterov, eps=eps, delta=delta, wd_ratio=wd_ratio)
+        super(SGDP, self).__init__(params, defaults)
+
+    def _channel_view(self, x):
+        return x.view(x.size(0), -1)
+
+    def _layer_view(self, x):
+        return x.view(1, -1)
+
+    def _cosine_similarity(self, x, y, eps, view_func):
+        x = view_func(x)
+        y = view_func(y)
+
+        x_norm = x.norm(dim=1).add_(eps)
+        y_norm = y.norm(dim=1).add_(eps)
+        dot = (x * y).sum(dim=1)
+
+        return dot.abs() / x_norm / y_norm
+
+    def _projection(self, p, grad, perturb, delta, wd_ratio, eps):
+        wd = 1
+        expand_size = [-1] + [1] * (len(p.shape) - 1)
+        for view_func in [self._channel_view, self._layer_view]:
+
+            cosine_sim = self._cosine_similarity(grad, p.data, eps, view_func)
+
+            if cosine_sim.max() < delta / math.sqrt(view_func(p.data).size(1)):
+                p_n = p.data / view_func(p.data).norm(dim=1).view(expand_size).add_(eps)
+                perturb -= p_n * view_func(p_n * perturb).sum(dim=1).view(expand_size)
+                wd = wd_ratio
+
+                return perturb, wd
+
+        return perturb, wd
+
+    def step(self, closure=None):
+        loss = None
+        if closure is not None:
+            loss = closure()
+
+        for group in self.param_groups:
+            weight_decay = group['weight_decay']
+            momentum = group['momentum']
+            dampening = group['dampening']
+            nesterov = group['nesterov']
+
+            for p in group['params']:
+                if p.grad is None:
+                    continue
+                grad = p.grad.data
+                state = self.state[p]
+
+                # State initialization
+                if len(state) == 0:
+                    state['momentum'] = torch.zeros_like(p.data)
+
+                # SGD
+                buf = state['momentum']
+                buf.mul_(momentum).add_(1 - dampening, grad)
+                if nesterov:
+                    d_p = grad + momentum * buf
+                else:
+                    d_p = buf
+
+                # Projection
+                wd_ratio = 1
+                if len(p.shape) > 1:
+                    d_p, wd_ratio = self._projection(p, grad, d_p, group['delta'], group['wd_ratio'], group['eps'])
+
+                # Weight decay
+                if weight_decay != 0:
+                    p.data.mul_(1 - group['lr'] * group['weight_decay'] * wd_ratio / (1-momentum))
+
+                # Step
+                p.data.add_(-group['lr'], d_p)
+
+        return loss

timm/scheduler/cosine_lr.py

@@ -12,7 +12,7 @@ import torch
 from .scheduler import Scheduler
 
 
-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
 
 
 class CosineLRScheduler(Scheduler):
@@ -48,7 +48,7 @@ class CosineLRScheduler(Scheduler):
         assert t_initial > 0
         assert lr_min >= 0
         if t_initial == 1 and t_mul == 1 and decay_rate == 1:
-            logger.warning("Cosine annealing scheduler will have no effect on the learning "
+            _logger.warning("Cosine annealing scheduler will have no effect on the learning "
                            "rate since t_initial = t_mul = eta_mul = 1.")
         self.t_initial = t_initial
         self.t_mul = t_mul

timm/scheduler/tanh_lr.py

@@ -12,7 +12,7 @@ import torch
 from .scheduler import Scheduler
 
 
-logger = logging.getLogger(__name__)
+_logger = logging.getLogger(__name__)
 
 
 class TanhLRScheduler(Scheduler):

timm/utils.py

@@ -14,6 +14,7 @@ import glob
 import csv
 import operator
 import logging
+import logging.handlers
 import numpy as np
 from collections import OrderedDict
 try:
@@ -26,6 +27,9 @@ except ImportError:
 from torch import distributed as dist
 
 
+_logger = logging.getLogger(__name__)
+
+
 def unwrap_model(model):
     if isinstance(model, ModelEma):
         return unwrap_model(model.ema)
@@ -89,7 +93,7 @@ class CheckpointSaver:
             checkpoints_str = "Current checkpoints:\n"
             for c in self.checkpoint_files:
                 checkpoints_str += ' {}\n'.format(c)
-            logging.info(checkpoints_str)
+            _logger.info(checkpoints_str)
 
             if metric is not None and (self.best_metric is None or self.cmp(metric, self.best_metric)):
                 self.best_epoch = epoch
@@ -126,10 +130,10 @@ class CheckpointSaver:
         to_delete = self.checkpoint_files[delete_index:]
         for d in to_delete:
             try:
-                logging.debug("Cleaning checkpoint: {}".format(d))
+                _logger.debug("Cleaning checkpoint: {}".format(d))
                 os.remove(d[0])
             except Exception as e:
-                logging.error("Exception '{}' while deleting checkpoint".format(e))
+                _logger.error("Exception '{}' while deleting checkpoint".format(e))
         self.checkpoint_files = self.checkpoint_files[:delete_index]
 
     def save_recovery(self, model, optimizer, args, epoch, model_ema=None, use_amp=False, batch_idx=0):
@@ -139,10 +143,10 @@ class CheckpointSaver:
         self._save(save_path, model, optimizer, args, epoch, model_ema, use_amp=use_amp)
         if os.path.exists(self.last_recovery_file):
             try:
-                logging.debug("Cleaning recovery: {}".format(self.last_recovery_file))
+                _logger.debug("Cleaning recovery: {}".format(self.last_recovery_file))
                 os.remove(self.last_recovery_file)
             except Exception as e:
-                logging.error("Exception '{}' while removing {}".format(e, self.last_recovery_file))
+                _logger.error("Exception '{}' while removing {}".format(e, self.last_recovery_file))
         self.last_recovery_file = self.curr_recovery_file
         self.curr_recovery_file = save_path
 
@@ -284,9 +288,9 @@ class ModelEma:
                     name = k
                 new_state_dict[name] = v
             self.ema.load_state_dict(new_state_dict)
-            logging.info("Loaded state_dict_ema")
+            _logger.info("Loaded state_dict_ema")
         else:
-            logging.warning("Failed to find state_dict_ema, starting from loaded model weights")
+            _logger.warning("Failed to find state_dict_ema, starting from loaded model weights")
 
     def update(self, model):
         # correct a mismatch in state dict keys
@@ -312,8 +316,13 @@ class FormatterNoInfo(logging.Formatter):
         return logging.Formatter.format(self, record)
 
 
-def setup_default_logging(default_level=logging.INFO):
+def setup_default_logging(default_level=logging.INFO, log_path=''):
     console_handler = logging.StreamHandler()
     console_handler.setFormatter(FormatterNoInfo())
     logging.root.addHandler(console_handler)
     logging.root.setLevel(default_level)
+    if log_path:
+        file_handler = logging.handlers.RotatingFileHandler(log_path, maxBytes=(1024 ** 2 * 2), backupCount=3)
+        file_formatter = logging.Formatter("%(asctime)s - %(name)20s: [%(levelname)8s] - %(message)s")
+        file_handler.setFormatter(file_formatter)
+        logging.root.addHandler(file_handler)

train.py

@@ -40,6 +40,7 @@ import torch.nn as nn
 import torchvision.utils
 
 torch.backends.cudnn.benchmark = True
+_logger = logging.getLogger('train')
 
 
 # The first arg parser parses out only the --config argument, this argument is used to
@@ -232,7 +233,7 @@ def main():
     if 'WORLD_SIZE' in os.environ:
         args.distributed = int(os.environ['WORLD_SIZE']) > 1
         if args.distributed and args.num_gpu > 1:
-            logging.warning('Using more than one GPU per process in distributed mode is not allowed. Setting num_gpu to 1.')
+            _logger.warning('Using more than one GPU per process in distributed mode is not allowed. Setting num_gpu to 1.')
             args.num_gpu = 1
 
     args.device = 'cuda:0'
@@ -248,10 +249,10 @@ def main():
     assert args.rank >= 0
 
     if args.distributed:
-        logging.info('Training in distributed mode with multiple processes, 1 GPU per process. Process %d, total %d.'
+        _logger.info('Training in distributed mode with multiple processes, 1 GPU per process. Process %d, total %d.'
                      % (args.rank, args.world_size))
     else:
-        logging.info('Training with a single process on %d GPUs.' % args.num_gpu)
+        _logger.info('Training with a single process on %d GPUs.' % args.num_gpu)
 
     torch.manual_seed(args.seed + args.rank)
 
@@ -270,7 +271,7 @@ def main():
         checkpoint_path=args.initial_checkpoint)
 
     if args.local_rank == 0:
-        logging.info('Model %s created, param count: %d' %
+        _logger.info('Model %s created, param count: %d' %
                      (args.model, sum([m.numel() for m in model.parameters()])))
 
     data_config = resolve_data_config(vars(args), model=model, verbose=args.local_rank == 0)
@@ -286,7 +287,7 @@ def main():
 
     if args.num_gpu > 1:
         if args.amp:
-            logging.warning(
+            _logger.warning(
                 'AMP does not work well with nn.DataParallel, disabling. Use distributed mode for multi-GPU AMP.')
             args.amp = False
         model = nn.DataParallel(model, device_ids=list(range(args.num_gpu))).cuda()
@@ -300,7 +301,7 @@ def main():
         model, optimizer = amp.initialize(model, optimizer, opt_level='O1')
         use_amp = True
     if args.local_rank == 0:
-        logging.info('NVIDIA APEX {}. AMP {}.'.format(
+        _logger.info('NVIDIA APEX {}. AMP {}.'.format(
             'installed' if has_apex else 'not installed', 'on' if use_amp else 'off'))
 
     # optionally resume from a checkpoint
@@ -311,11 +312,11 @@ def main():
     if resume_state and not args.no_resume_opt:
         if 'optimizer' in resume_state:
             if args.local_rank == 0:
-                logging.info('Restoring Optimizer state from checkpoint')
+                _logger.info('Restoring Optimizer state from checkpoint')
             optimizer.load_state_dict(resume_state['optimizer'])
         if use_amp and 'amp' in resume_state and 'load_state_dict' in amp.__dict__:
             if args.local_rank == 0:
-                logging.info('Restoring NVIDIA AMP state from checkpoint')
+                _logger.info('Restoring NVIDIA AMP state from checkpoint')
             amp.load_state_dict(resume_state['amp'])
     del resume_state
 
@@ -337,16 +338,16 @@ def main():
                 else:
                     model = torch.nn.SyncBatchNorm.convert_sync_batchnorm(model)
                 if args.local_rank == 0:
-                    logging.info(
+                    _logger.info(
                         'Converted model to use Synchronized BatchNorm. WARNING: You may have issues if using '
                         'zero initialized BN layers (enabled by default for ResNets) while sync-bn enabled.')
             except Exception as e:
-                logging.error('Failed to enable Synchronized BatchNorm. Install Apex or Torch >= 1.1')
+                _logger.error('Failed to enable Synchronized BatchNorm. Install Apex or Torch >= 1.1')
         if has_apex:
             model = DDP(model, delay_allreduce=True)
         else:
             if args.local_rank == 0:
-                logging.info("Using torch DistributedDataParallel. Install NVIDIA Apex for Apex DDP.")
+                _logger.info("Using torch DistributedDataParallel. Install NVIDIA Apex for Apex DDP.")
             model = DDP(model, device_ids=[args.local_rank])  # can use device str in Torch >= 1.1
         # NOTE: EMA model does not need to be wrapped by DDP
 
@@ -361,11 +362,11 @@ def main():
         lr_scheduler.step(start_epoch)
 
     if args.local_rank == 0:
-        logging.info('Scheduled epochs: {}'.format(num_epochs))
+        _logger.info('Scheduled epochs: {}'.format(num_epochs))
 
     train_dir = os.path.join(args.data, 'train')
     if not os.path.exists(train_dir):
-        logging.error('Training folder does not exist at: {}'.format(train_dir))
+        _logger.error('Training folder does not exist at: {}'.format(train_dir))
         exit(1)
     dataset_train = Dataset(train_dir)
 
@@ -404,7 +405,7 @@ def main():
     if not os.path.isdir(eval_dir):
         eval_dir = os.path.join(args.data, 'validation')
         if not os.path.isdir(eval_dir):
-            logging.error('Validation folder does not exist at: {}'.format(eval_dir))
+            _logger.error('Validation folder does not exist at: {}'.format(eval_dir))
             exit(1)
     dataset_eval = Dataset(eval_dir)
 
@@ -468,7 +469,7 @@ def main():
 
             if args.distributed and args.dist_bn in ('broadcast', 'reduce'):
                 if args.local_rank == 0:
-                    logging.info("Distributing BatchNorm running means and vars")
+                    _logger.info("Distributing BatchNorm running means and vars")
                 distribute_bn(model, args.world_size, args.dist_bn == 'reduce')
 
             eval_metrics = validate(model, loader_eval, validate_loss_fn, args)
@@ -499,7 +500,7 @@ def main():
     except KeyboardInterrupt:
         pass
     if best_metric is not None:
-        logging.info('*** Best metric: {0} (epoch {1})'.format(best_metric, best_epoch))
+        _logger.info('*** Best metric: {0} (epoch {1})'.format(best_metric, best_epoch))
 
 
 def train_epoch(
@@ -559,7 +560,7 @@ def train_epoch(
                 losses_m.update(reduced_loss.item(), input.size(0))
 
             if args.local_rank == 0:
-                logging.info(
+                _logger.info(
                     'Train: {} [{:>4d}/{} ({:>3.0f}%)]  '
                     'Loss: {loss.val:>9.6f} ({loss.avg:>6.4f})  '
                     'Time: {batch_time.val:.3f}s, {rate:>7.2f}/s  '
@@ -647,7 +648,7 @@ def validate(model, loader, loss_fn, args, log_suffix=''):
             end = time.time()
             if args.local_rank == 0 and (last_batch or batch_idx % args.log_interval == 0):
                 log_name = 'Test' + log_suffix
-                logging.info(
+                _logger.info(
                     '{0}: [{1:>4d}/{2}]  '
                     'Time: {batch_time.val:.3f} ({batch_time.avg:.3f})  '
                     'Loss: {loss.val:>7.4f} ({loss.avg:>6.4f})  '

validate.py

@@ -5,7 +5,7 @@ This is intended to be a lean and easily modifiable ImageNet validation script f
 models or training checkpoints against ImageNet or similarly organized image datasets. It prioritizes
 canonical PyTorch, standard Python style, and good performance. Repurpose as you see fit.
 
-Hacked together by / Copyright 2020 Ross Wightman (https://github.com/rwightman)
+Hacked together by Ross Wightman (https://github.com/rwightman)
 """
 import argparse
 import os
@@ -29,6 +29,8 @@ from timm.data import Dataset, DatasetTar, create_loader, resolve_data_config, R
 from timm.utils import accuracy, AverageMeter, natural_key, setup_default_logging
 
 torch.backends.cudnn.benchmark = True
+_logger = logging.getLogger('validate')
+
 
 parser = argparse.ArgumentParser(description='PyTorch ImageNet Validation')
 parser.add_argument('data', metavar='DIR',
@@ -115,7 +117,7 @@ def validate(args):
         load_checkpoint(model, args.checkpoint, args.use_ema)
 
     param_count = sum([m.numel() for m in model.parameters()])
-    logging.info('Model %s created, param count: %d' % (args.model, param_count))
+    _logger.info('Model %s created, param count: %d' % (args.model, param_count))
 
     data_config = resolve_data_config(vars(args), model=model)
     model, test_time_pool = apply_test_time_pool(model, data_config, args)
@@ -194,7 +196,7 @@ def validate(args):
             end = time.time()
 
             if batch_idx % args.log_freq == 0:
-                logging.info(
+                _logger.info(
                     'Test: [{0:>4d}/{1}]  '
                     'Time: {batch_time.val:.3f}s ({batch_time.avg:.3f}s, {rate_avg:>7.2f}/s)  '
                     'Loss: {loss.val:>7.4f} ({loss.avg:>6.4f})  '
@@ -220,9 +222,9 @@ def validate(args):
         param_count=round(param_count / 1e6, 2),
         img_size=data_config['input_size'][-1],
         cropt_pct=crop_pct,
-        interpolation=data_config['interpolation']
-    ))
-    logging.info(' * Acc@1 {:.3f} ({:.3f}) Acc@5 {:.3f} ({:.3f})'.format(
+        interpolation=data_config['interpolation']))
+
+    _logger.info(' * Acc@1 {:.3f} ({:.3f}) Acc@5 {:.3f} ({:.3f})'.format(
        results['top1'], results['top1_err'], results['top5'], results['top5_err']))
 
     return results
@@ -252,7 +254,7 @@ def main():
 
     if len(model_cfgs):
         results_file = args.results_file or './results-all.csv'
-        logging.info('Running bulk validation on these pretrained models: {}'.format(', '.join(model_names)))
+        _logger.info('Running bulk validation on these pretrained models: {}'.format(', '.join(model_names)))
         results = []
         try:
             start_batch_size = args.batch_size