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Running
on
Zero
File size: 8,651 Bytes
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import numpy as np
import io
import os
import json
import logging
import random
import time
from collections import defaultdict, deque
import datetime
from pathlib import Path
from typing import List, Union
import torch
import torch.distributed as dist
from .distributed import is_dist_avail_and_initialized
logger = logging.getLogger(__name__)
class SmoothedValue(object):
"""Track a series of values and provide access to smoothed values over a
window or the global series average.
"""
def __init__(self, window=20, fmt=None):
if fmt is None:
fmt = "{median:.4f} ({global_avg:.4f})"
self.deque = deque(maxlen=window)
self.total = 0.0
self.count = 0
self.fmt = fmt
def update(self, value, n=1):
self.deque.append(value)
self.count += n
self.total += value * n
def synchronize_between_processes(self):
"""
Warning: does not synchronize the deque!
"""
if not is_dist_avail_and_initialized():
return
t = torch.tensor([self.count, self.total],
dtype=torch.float64, device='cuda')
dist.barrier()
dist.all_reduce(t)
t = t.tolist()
self.count = int(t[0])
self.total = t[1]
@property
def median(self):
d = torch.tensor(list(self.deque))
return d.median().item()
@property
def avg(self):
d = torch.tensor(list(self.deque), dtype=torch.float32)
return d.mean().item()
@property
def global_avg(self):
return self.total / self.count
@property
def max(self):
return max(self.deque)
@property
def value(self):
return self.deque[-1]
def __str__(self):
return self.fmt.format(
median=self.median,
avg=self.avg,
global_avg=self.global_avg,
max=self.max,
value=self.value)
class MetricLogger(object):
def __init__(self, delimiter="\t"):
self.meters = defaultdict(SmoothedValue)
self.delimiter = delimiter
def update(self, **kwargs):
for k, v in kwargs.items():
if isinstance(v, torch.Tensor):
v = v.item()
assert isinstance(v, (float, int))
self.meters[k].update(v)
def __getattr__(self, attr):
if attr in self.meters:
return self.meters[attr]
if attr in self.__dict__:
return self.__dict__[attr]
raise AttributeError("'{}' object has no attribute '{}'".format(
type(self).__name__, attr))
def __str__(self):
loss_str = []
for name, meter in self.meters.items():
if meter.count == 0: # skip empty meter
loss_str.append(
"{}: {}".format(name, "No data")
)
else:
loss_str.append(
"{}: {}".format(name, str(meter))
)
return self.delimiter.join(loss_str)
def global_avg(self):
loss_str = []
for name, meter in self.meters.items():
if meter.count == 0:
loss_str.append(
"{}: {}".format(name, "No data")
)
else:
loss_str.append(
"{}: {:.4f}".format(name, meter.global_avg)
)
return self.delimiter.join(loss_str)
def get_global_avg_dict(self, prefix=""):
"""include a separator (e.g., `/`, or "_") at the end of `prefix`"""
d = {f"{prefix}{k}": m.global_avg if m.count > 0 else 0. for k, m in self.meters.items()}
return d
def synchronize_between_processes(self):
for meter in self.meters.values():
meter.synchronize_between_processes()
def add_meter(self, name, meter):
self.meters[name] = meter
def log_every(self, iterable, log_freq, header=None):
i = 0
if not header:
header = ''
start_time = time.time()
end = time.time()
iter_time = SmoothedValue(fmt='{avg:.4f}')
data_time = SmoothedValue(fmt='{avg:.4f}')
space_fmt = ':' + str(len(str(len(iterable)))) + 'd'
log_msg = [
header,
'[{0' + space_fmt + '}/{1}]',
'eta: {eta}',
'{meters}',
'time: {time}',
'data: {data}'
]
if torch.cuda.is_available():
log_msg.append('max mem: {memory:.0f} res mem: {res_mem:.0f}')
log_msg = self.delimiter.join(log_msg)
MB = 1024.0 * 1024.0
for obj in iterable:
data_time.update(time.time() - end)
yield obj
iter_time.update(time.time() - end)
if i % log_freq == 0 or i == len(iterable) - 1:
eta_seconds = iter_time.global_avg * (len(iterable) - i)
eta_string = str(datetime.timedelta(seconds=int(eta_seconds)))
if torch.cuda.is_available():
logger.info(log_msg.format(
i, len(iterable), eta=eta_string,
meters=str(self),
time=str(iter_time), data=str(data_time),
memory=torch.cuda.max_memory_allocated() / MB,
res_mem=torch.cuda.max_memory_reserved() / MB,
))
else:
logger.info(log_msg.format(
i, len(iterable), eta=eta_string,
meters=str(self),
time=str(iter_time), data=str(data_time)))
i += 1
end = time.time()
total_time = time.time() - start_time
total_time_str = str(datetime.timedelta(seconds=int(total_time)))
logger.info('{} Total time: {} ({:.4f} s / it)'.format(
header, total_time_str, total_time / len(iterable)))
class AttrDict(dict):
def __init__(self, *args, **kwargs):
super(AttrDict, self).__init__(*args, **kwargs)
self.__dict__ = self
def compute_acc(logits, label, reduction='mean'):
ret = (torch.argmax(logits, dim=1) == label).float()
if reduction == 'none':
return ret.detach()
elif reduction == 'mean':
return ret.mean().item()
def compute_n_params(model, return_str=True):
tot = 0
for p in model.parameters():
w = 1
for x in p.shape:
w *= x
tot += w
if return_str:
if tot >= 1e6:
return '{:.1f}M'.format(tot / 1e6)
else:
return '{:.1f}K'.format(tot / 1e3)
else:
return tot
def setup_seed(seed):
torch.manual_seed(seed)
np.random.seed(seed)
random.seed(seed)
def remove_files_if_exist(file_paths):
for fp in file_paths:
if os.path.isfile(fp):
os.remove(fp)
def save_json(data, filename, save_pretty=False, sort_keys=False):
with open(filename, "w") as f:
if save_pretty:
f.write(json.dumps(data, indent=4, sort_keys=sort_keys))
else:
json.dump(data, f)
def load_json(filename):
with open(filename, "r") as f:
return json.load(f)
def flat_list_of_lists(l):
"""flatten a list of lists [[1,2], [3,4]] to [1,2,3,4]"""
return [item for sublist in l for item in sublist]
def find_files_by_suffix_recursively(root: str, suffix: Union[str, List[str]]):
"""
Args:
root: path to the directory to start search files
suffix: any str as suffix, or can match multiple such strings
when input is List[str].
Example 1, e.g., suffix: `.jpg` or [`.jpg`, `.png`]
Example 2, e.g., use a `*` in the `suffix`: `START*.jpg.`.
"""
if isinstance(suffix, str):
suffix = [suffix, ]
filepaths = flat_list_of_lists(
[list(Path(root).rglob(f"*{e}")) for e in suffix])
return filepaths
def match_key_and_shape(state_dict1, state_dict2):
keys1 = set(state_dict1.keys())
keys2 = set(state_dict2.keys())
print(f"keys1 - keys2: {keys1 - keys2}")
print(f"keys2 - keys1: {keys2 - keys1}")
mismatch = 0
for k in list(keys1):
if state_dict1[k].shape != state_dict2[k].shape:
print(
f"k={k}, state_dict1[k].shape={state_dict1[k].shape}, state_dict2[k].shape={state_dict2[k].shape}")
mismatch += 1
print(f"mismatch {mismatch}")
def merge_dicts(list_dicts):
merged_dict = list_dicts[0].copy()
for i in range(1, len(list_dicts)):
merged_dict.update(list_dicts[i])
return merged_dict
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