def account_one_arch(arch_index, arch_str, checkpoints, datasets, dataloader_dict):
information = ArchResults(arch_index, arch_str)
for checkpoint_path in checkpoints:
checkpoint = torch.load(checkpoint_path, map_location='cpu')
used_seed = checkpoint_path.name.split('-')[-1].split('.')[0]
for dataset in datasets:
assert dataset in checkpoint, 'Can not find {:} in arch-{:} from {:}'.format(dataset, arch_index, checkpoint_path)
results = checkpoint[dataset]
assert results['finish-train'], 'This {:} arch seed={:} does not finish train on {:} ::: {:}'.format(arch_index, used_seed, dataset, checkpoint_path)
arch_config = {'channel': results['channel'], 'num_cells': results['num_cells'], 'arch_str': arch_str, 'class_num': results['config']['class_num']}
xresult = ResultsCount(dataset, results['net_state_dict'], results['train_acc1es'], results['train_losses'], \
results['param'], results['flop'], arch_config, used_seed, results['total_epoch'], None)
if dataset == 'cifar10-valid':
xresult.update_eval('x-valid' , results['valid_acc1es'], results['valid_losses'])
elif dataset == 'cifar10':
xresult.update_eval('ori-test', results['valid_acc1es'], results['valid_losses'])
elif dataset == 'cifar100' or dataset == 'ImageNet16-120':
xresult.update_eval('ori-test', results['valid_acc1es'], results['valid_losses'])
net_config = dict2config({'name': 'infer.tiny', 'C': arch_config['channel'], 'N': arch_config['num_cells'],
'genotype': CellStructure.str2structure(arch_config['arch_str']), 'num_classes':arch_config['class_num']}, None)
network = get_cell_based_tiny_net(net_config)
network.load_state_dict(xresult.get_net_param())
network = network.cuda()
loss, top1, top5, latencies = pure_evaluate(dataloader_dict['{:}@{:}'.format(dataset, 'valid')], network)
xresult.update_eval('x-valid', {results['total_epoch']-1: top1}, {results['total_epoch']-1: loss})
loss, top1, top5, latencies = pure_evaluate(dataloader_dict['{:}@{:}'.format(dataset, 'test')], network)
xresult.update_eval('x-test' , {results['total_epoch']-1: top1}, {results['total_epoch']-1: loss})
xresult.update_latency(latencies)
else:
raise ValueError('invalid dataset name : {:}'.format(dataset))
information.update(dataset, int(used_seed), xresult)
return information
def evaluate_one_shot(model, xloader, api, cal_mode, seed=111):
print(
"This is an old version of codes to use NAS-Bench-API, and should be modified to align with the new version. Please contact me for more details if you use this function."
)
weights = deepcopy(model.state_dict())
model.train(cal_mode)
with torch.no_grad():
logits = nn.functional.log_softmax(model.arch_parameters, dim=-1)
archs = CellStructure.gen_all(model.op_names, model.max_nodes, False)
probs, accuracies, gt_accs_10_valid, gt_accs_10_test = [], [], [], []
loader_iter = iter(xloader)
random.seed(seed)
random.shuffle(archs)
for idx, arch in enumerate(archs):
arch_index = api.query_index_by_arch(arch)
metrics = api.get_more_info(arch_index, "cifar10-valid", None,
False, False)
gt_accs_10_valid.append(metrics["valid-accuracy"])
metrics = api.get_more_info(arch_index, "cifar10", None, False,
False)
gt_accs_10_test.append(metrics["test-accuracy"])
select_logits = []
for i, node_info in enumerate(arch.nodes):
for op, xin in node_info:
node_str = "{:}<-{:}".format(i + 1, xin)
op_index = model.op_names.index(op)
select_logits.append(logits[model.edge2index[node_str],
op_index])
cur_prob = sum(select_logits).item()
probs.append(cur_prob)
cor_prob_valid = np.corrcoef(probs, gt_accs_10_valid)[0, 1]
cor_prob_test = np.corrcoef(probs, gt_accs_10_test)[0, 1]
print(
"{:} correlation for probabilities : {:.6f} on CIFAR-10 validation and {:.6f} on CIFAR-10 test"
.format(time_string(), cor_prob_valid, cor_prob_test))
for idx, arch in enumerate(archs):
model.set_cal_mode("dynamic", arch)
try:
inputs, targets = next(loader_iter)
except:
loader_iter = iter(xloader)
inputs, targets = next(loader_iter)
_, logits = model(inputs.cuda())
_, preds = torch.max(logits, dim=-1)
correct = (preds == targets.cuda()).float()
accuracies.append(correct.mean().item())
if idx != 0 and (idx % 500 == 0 or idx + 1 == len(archs)):
cor_accs_valid = np.corrcoef(accuracies,
gt_accs_10_valid[:idx + 1])[0, 1]
cor_accs_test = np.corrcoef(accuracies,
gt_accs_10_test[:idx + 1])[0, 1]
print(
"{:} {:05d}/{:05d} mode={:5s}, correlation : accs={:.5f} for CIFAR-10 valid, {:.5f} for CIFAR-10 test."
.format(time_string(), idx, len(archs),
"Train" if cal_mode else "Eval", cor_accs_valid,
cor_accs_test))
model.load_state_dict(weights)
return archs, probs, accuracies
def create_result_count(used_seed, dataset, arch_config, results,
dataloader_dict):
xresult = ResultsCount(dataset, results['net_state_dict'], results['train_acc1es'], results['train_losses'], \
results['param'], results['flop'], arch_config, used_seed, results['total_epoch'], None)
net_config = dict2config(
{
'name': 'infer.tiny',
'C': arch_config['channel'],
'N': arch_config['num_cells'],
'genotype': CellStructure.str2structure(arch_config['arch_str']),
'num_classes': arch_config['class_num']
}, None)
network = get_cell_based_tiny_net(net_config)
network.load_state_dict(xresult.get_net_param())
if 'train_times' in results: # new version
xresult.update_train_info(results['train_acc1es'],
results['train_acc5es'],
results['train_losses'],
results['train_times'])
xresult.update_eval(results['valid_acc1es'], results['valid_losses'],
results['valid_times'])
else:
if dataset == 'cifar10-valid':
xresult.update_OLD_eval('x-valid', results['valid_acc1es'],
results['valid_losses'])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict['{:}@{:}'.format('cifar10', 'test')],
network.cuda())
xresult.update_OLD_eval('ori-test',
{results['total_epoch'] - 1: top1},
{results['total_epoch'] - 1: loss})
xresult.update_latency(latencies)
elif dataset == 'cifar10':
xresult.update_OLD_eval('ori-test', results['valid_acc1es'],
results['valid_losses'])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict['{:}@{:}'.format(dataset, 'test')],
network.cuda())
xresult.update_latency(latencies)
elif dataset == 'cifar100' or dataset == 'ImageNet16-120':
xresult.update_OLD_eval('ori-test', results['valid_acc1es'],
results['valid_losses'])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict['{:}@{:}'.format(dataset, 'valid')],
network.cuda())
xresult.update_OLD_eval('x-valid',
{results['total_epoch'] - 1: top1},
{results['total_epoch'] - 1: loss})
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict['{:}@{:}'.format(dataset, 'test')],
network.cuda())
xresult.update_OLD_eval('x-test',
{results['total_epoch'] - 1: top1},
{results['total_epoch'] - 1: loss})
xresult.update_latency(latencies)
else:
raise ValueError('invalid dataset name : {:}'.format(dataset))
return xresult
def generate_meta_info(save_dir, max_node, divide=40):
aa_nas_bench_ss = get_search_spaces('cell', 'nas-bench-201')
archs = CellStructure.gen_all(aa_nas_bench_ss, max_node, False)
print ('There are {:} archs vs {:}.'.format(len(archs), len(aa_nas_bench_ss) ** ((max_node-1)*max_node/2)))
random.seed( 88 ) # please do not change this line for reproducibility
random.shuffle( archs )
# to test fixed-random shuffle
#print ('arch [0] : {:}\n---->>>> {:}'.format( archs[0], archs[0].tostr() ))
#print ('arch [9] : {:}\n---->>>> {:}'.format( archs[9], archs[9].tostr() ))
assert archs[0 ].tostr() == '|avg_pool_3x3~0|+|nor_conv_1x1~0|skip_connect~1|+|nor_conv_1x1~0|skip_connect~1|skip_connect~2|', 'please check the 0-th architecture : {:}'.format(archs[0])
assert archs[9 ].tostr() == '|avg_pool_3x3~0|+|none~0|none~1|+|skip_connect~0|none~1|nor_conv_3x3~2|', 'please check the 9-th architecture : {:}'.format(archs[9])
assert archs[123].tostr() == '|avg_pool_3x3~0|+|avg_pool_3x3~0|nor_conv_1x1~1|+|none~0|avg_pool_3x3~1|nor_conv_3x3~2|', 'please check the 123-th architecture : {:}'.format(archs[123])
total_arch = len(archs)
num = 50000
indexes_5W = list(range(num))
random.seed( 1021 )
random.shuffle( indexes_5W )
train_split = sorted( list(set(indexes_5W[:num//2])) )
valid_split = sorted( list(set(indexes_5W[num//2:])) )
assert len(train_split) + len(valid_split) == num
assert train_split[0] == 0 and train_split[10] == 26 and train_split[111] == 203 and valid_split[0] == 1 and valid_split[10] == 18 and valid_split[111] == 242, '{:} {:} {:} - {:} {:} {:}'.format(train_split[0], train_split[10], train_split[111], valid_split[0], valid_split[10], valid_split[111])
splits = {num: {'train': train_split, 'valid': valid_split} }
info = {'archs' : [x.tostr() for x in archs],
'total' : total_arch,
'max_node' : max_node,
'splits': splits}
save_dir = Path(save_dir)
save_dir.mkdir(parents=True, exist_ok=True)
save_name = save_dir / 'meta-node-{:}.pth'.format(max_node)
assert not save_name.exists(), '{:} already exist'.format(save_name)
torch.save(info, save_name)
print ('save the meta file into {:}'.format(save_name))
script_name_full = save_dir / 'BENCH-201-N{:}.opt-full.script'.format(max_node)
script_name_less = save_dir / 'BENCH-201-N{:}.opt-less.script'.format(max_node)
full_file = open(str(script_name_full), 'w')
less_file = open(str(script_name_less), 'w')
gaps = total_arch // divide
for start in range(0, total_arch, gaps):
xend = min(start+gaps, total_arch)
full_file.write('bash ./scripts-search/NAS-Bench-201/train-models.sh 0 {:5d} {:5d} -1 \'777 888 999\'\n'.format(start, xend-1))
less_file.write('bash ./scripts-search/NAS-Bench-201/train-models.sh 1 {:5d} {:5d} -1 \'777 888 999\'\n'.format(start, xend-1))
print ('save the training script into {:} and {:}'.format(script_name_full, script_name_less))
full_file.close()
less_file.close()
script_name = save_dir / 'meta-node-{:}.cal-script.txt'.format(max_node)
macro = 'OMP_NUM_THREADS=6 CUDA_VISIBLE_DEVICES=0'
with open(str(script_name), 'w') as cfile:
for start in range(0, total_arch, gaps):
xend = min(start+gaps, total_arch)
cfile.write('{:} python exps/NAS-Bench-201/statistics.py --mode cal --target_dir {:06d}-{:06d}-C16-N5\n'.format(macro, start, xend-1))
print ('save the post-processing script into {:}'.format(script_name))
def evaluate_one_shot(model, xloader, api, cal_mode, seed=111):
weights = deepcopy(model.state_dict())
model.train(cal_mode)
with torch.no_grad():
logits = nn.functional.log_softmax(model.arch_parameters, dim=-1)
archs = CellStructure.gen_all(model.op_names, model.max_nodes, False)
probs, accuracies, gt_accs_10_valid, gt_accs_10_test = [], [], [], []
loader_iter = iter(xloader)
random.seed(seed)
random.shuffle(archs)
for idx, arch in enumerate(archs):
arch_index = api.query_index_by_arch(arch)
metrics = api.get_more_info(arch_index, 'cifar10-valid', None,
False, False)
gt_accs_10_valid.append(metrics['valid-accuracy'])
metrics = api.get_more_info(arch_index, 'cifar10', None, False,
False)
gt_accs_10_test.append(metrics['test-accuracy'])
select_logits = []
for i, node_info in enumerate(arch.nodes):
for op, xin in node_info:
node_str = '{:}<-{:}'.format(i + 1, xin)
op_index = model.op_names.index(op)
select_logits.append(logits[model.edge2index[node_str],
op_index])
cur_prob = sum(select_logits).item()
probs.append(cur_prob)
cor_prob_valid = np.corrcoef(probs, gt_accs_10_valid)[0, 1]
cor_prob_test = np.corrcoef(probs, gt_accs_10_test)[0, 1]
print(
'{:} correlation for probabilities : {:.6f} on CIFAR-10 validation and {:.6f} on CIFAR-10 test'
.format(time_string(), cor_prob_valid, cor_prob_test))
for idx, arch in enumerate(archs):
model.set_cal_mode('dynamic', arch)
try:
inputs, targets = next(loader_iter)
except:
loader_iter = iter(xloader)
inputs, targets = next(loader_iter)
_, logits = model(inputs.cuda())
_, preds = torch.max(logits, dim=-1)
correct = (preds == targets.cuda()).float()
accuracies.append(correct.mean().item())
if idx != 0 and (idx % 500 == 0 or idx + 1 == len(archs)):
cor_accs_valid = np.corrcoef(accuracies,
gt_accs_10_valid[:idx + 1])[0, 1]
cor_accs_test = np.corrcoef(accuracies,
gt_accs_10_test[:idx + 1])[0, 1]
print(
'{:} {:05d}/{:05d} mode={:5s}, correlation : accs={:.5f} for CIFAR-10 valid, {:.5f} for CIFAR-10 test.'
.format(time_string(), idx, len(archs),
'Train' if cal_mode else 'Eval', cor_accs_valid,
cor_accs_test))
model.load_state_dict(weights)
return archs, probs, accuracies
def generate_arch(self, actions):
genotypes = []
for i in range(1, self.max_nodes):
xlist = []
for j in range(i):
node_str = '{:}<-{:}'.format(i, j)
op_name = self.search_space[actions[self.edge2index[node_str]]]
xlist.append((op_name, j))
genotypes.append(tuple(xlist))
return CellStructure(genotypes)
def config2structure(config):
genotypes = []
for i in range(1, max_nodes):
xlist = []
for j in range(i):
node_str = "{:}<-{:}".format(i, j)
op_name = config[node_str]
xlist.append((op_name, j))
genotypes.append(tuple(xlist))
return CellStructure(genotypes)
def random_architecture():
genotypes = []
for i in range(1, max_nodes):
xlist = []
for j in range(i):
node_str = '{:}<-{:}'.format(i, j)
op_name = random.choice( op_names )
xlist.append((op_name, j))
genotypes.append( tuple(xlist) )
return CellStructure( genotypes )
def get_an_arch():
genotypes = []
for i in range(1, 4):
xlist = []
for j in range(i):
node_str = '{:}<-{:}'.format(i, j)
op_name = 'nor_conv_3x3'
xlist.append((op_name, j))
genotypes.append(tuple(xlist))
return CellStructure(genotypes)
def main(save_dir: Path, workers: int, datasets: List[Text], xpaths: List[Text],
splits: List[int], seeds: List[int], nets: List[str], opt_config: Dict[Text, Any],
to_evaluate_indexes: tuple, cover_mode: bool, arch_config: Dict[Text, Any]):
log_dir = save_dir / 'logs'
log_dir.mkdir(parents=True, exist_ok=True)
logger = Logger(str(log_dir), os.getpid(), False)
logger.log('xargs : seeds = {:}'.format(seeds))
logger.log('xargs : cover_mode = {:}'.format(cover_mode))
logger.log('-' * 100)
logger.log(
'Start evaluating range =: {:06d} - {:06d}'.format(min(to_evaluate_indexes), max(to_evaluate_indexes))
+'({:} in total) / {:06d} with cover-mode={:}'.format(len(to_evaluate_indexes), len(nets), cover_mode))
for i, (dataset, xpath, split) in enumerate(zip(datasets, xpaths, splits)):
logger.log(
'--->>> Evaluate {:}/{:} : dataset={:9s}, path={:}, split={:}'.format(i, len(datasets), dataset, xpath, split))
logger.log('--->>> optimization config : {:}'.format(opt_config))
start_time, epoch_time = time.time(), AverageMeter()
for i, index in enumerate(to_evaluate_indexes):
arch = nets[index]
logger.log('\n{:} evaluate {:06d}/{:06d} ({:06d}/{:06d})-th arch [seeds={:}] {:}'.format(time_string(), i,
len(to_evaluate_indexes), index, len(nets), seeds, '-' * 15))
logger.log('{:} {:} {:}'.format('-' * 15, arch, '-' * 15))
# test this arch on different datasets with different seeds
has_continue = False
for seed in seeds:
to_save_name = save_dir / 'arch-{:06d}-seed-{:04d}.pth'.format(index, seed)
if to_save_name.exists():
if cover_mode:
logger.log('Find existing file : {:}, remove it before evaluation'.format(to_save_name))
os.remove(str(to_save_name))
else:
logger.log('Find existing file : {:}, skip this evaluation'.format(to_save_name))
has_continue = True
continue
results = evaluate_all_datasets(CellStructure.str2structure(arch),
datasets, xpaths, splits, opt_config, seed,
arch_config, workers, logger)
torch.save(results, to_save_name)
logger.log('\n{:} evaluate {:06d}/{:06d} ({:06d}/{:06d})-th arch [seeds={:}] ===>>> {:}'.format(time_string(), i,
len(to_evaluate_indexes), index, len(nets), seeds, to_save_name))
# measure elapsed time
if not has_continue: epoch_time.update(time.time() - start_time)
start_time = time.time()
need_time = 'Time Left: {:}'.format(convert_secs2time(epoch_time.avg * (len(to_evaluate_indexes)-i-1), True) )
logger.log('This arch costs : {:}'.format(convert_secs2time(epoch_time.val, True) ))
logger.log('{:}'.format('*' * 100))
logger.log('{:} {:74s} {:}'.format('*' * 10, '{:06d}/{:06d} ({:06d}/{:06d})-th done, left {:}'.format(i, len(
to_evaluate_indexes), index, len(nets), need_time), '*' * 10))
logger.log('{:}'.format('*' * 100))
logger.close()
def traverse_net(max_node):
aa_nas_bench_ss = get_search_spaces('cell', 'nats-bench')
archs = CellStructure.gen_all(aa_nas_bench_ss, max_node, False)
print ('There are {:} archs vs {:}.'.format(len(archs), len(aa_nas_bench_ss) ** ((max_node-1)*max_node/2)))
random.seed( 88 ) # please do not change this line for reproducibility
random.shuffle( archs )
assert archs[0 ].tostr() == '|avg_pool_3x3~0|+|nor_conv_1x1~0|skip_connect~1|+|nor_conv_1x1~0|skip_connect~1|skip_connect~2|', 'please check the 0-th architecture : {:}'.format(archs[0])
assert archs[9 ].tostr() == '|avg_pool_3x3~0|+|none~0|none~1|+|skip_connect~0|none~1|nor_conv_3x3~2|', 'please check the 9-th architecture : {:}'.format(archs[9])
assert archs[123].tostr() == '|avg_pool_3x3~0|+|avg_pool_3x3~0|nor_conv_1x1~1|+|none~0|avg_pool_3x3~1|nor_conv_3x3~2|', 'please check the 123-th architecture : {:}'.format(archs[123])
return [x.tostr() for x in archs]
def genotype(self):
genotypes = []
for i in range(1, self.max_nodes):
xlist = []
for j in range(i):
node_str = '{:}<-{:}'.format(i, j)
with torch.no_grad():
weights = self.arch_parameters[self.edge2index[node_str]]
op_name = self.search_space[weights.argmax().item()]
xlist.append((op_name, j))
genotypes.append(tuple(xlist))
return CellStructure(genotypes)
def train_single_model(save_dir, workers, datasets, xpaths, splits, use_less, seeds, model_str, arch_config):
assert torch.cuda.is_available(), 'CUDA is not available.'
torch.backends.cudnn.enabled = True
torch.backends.cudnn.deterministic = True
#torch.backends.cudnn.benchmark = True
torch.set_num_threads( workers )
save_dir = Path(save_dir) / 'specifics' / '{:}-{:}-{:}-{:}'.format('LESS' if use_less else 'FULL', model_str, arch_config['channel'], arch_config['num_cells'])
logger = Logger(str(save_dir), 0, False)
if model_str in CellArchitectures:
arch = CellArchitectures[model_str]
logger.log('The model string is found in pre-defined architecture dict : {:}'.format(model_str))
else:
try:
arch = CellStructure.str2structure(model_str)
except:
raise ValueError('Invalid model string : {:}. It can not be found or parsed.'.format(model_str))
assert arch.check_valid_op(get_search_spaces('cell', 'full')), '{:} has the invalid op.'.format(arch)
logger.log('Start train-evaluate {:}'.format(arch.tostr()))
logger.log('arch_config : {:}'.format(arch_config))
start_time, seed_time = time.time(), AverageMeter()
for _is, seed in enumerate(seeds):
logger.log('\nThe {:02d}/{:02d}-th seed is {:} ----------------------<.>----------------------'.format(_is, len(seeds), seed))
to_save_name = save_dir / 'seed-{:04d}.pth'.format(seed)
if to_save_name.exists():
logger.log('Find the existing file {:}, directly load!'.format(to_save_name))
checkpoint = torch.load(to_save_name)
else:
logger.log('Does not find the existing file {:}, train and evaluate!'.format(to_save_name))
checkpoint = evaluate_all_datasets(arch, datasets, xpaths, splits, use_less, seed, arch_config, workers, logger)
torch.save(checkpoint, to_save_name)
# log information
logger.log('{:}'.format(checkpoint['info']))
all_dataset_keys = checkpoint['all_dataset_keys']
for dataset_key in all_dataset_keys:
logger.log('\n{:} dataset : {:} {:}'.format('-'*15, dataset_key, '-'*15))
dataset_info = checkpoint[dataset_key]
#logger.log('Network ==>\n{:}'.format( dataset_info['net_string'] ))
logger.log('Flops = {:} MB, Params = {:} MB'.format(dataset_info['flop'], dataset_info['param']))
logger.log('config : {:}'.format(dataset_info['config']))
logger.log('Training State (finish) = {:}'.format(dataset_info['finish-train']))
last_epoch = dataset_info['total_epoch'] - 1
train_acc1es, train_acc5es = dataset_info['train_acc1es'], dataset_info['train_acc5es']
valid_acc1es, valid_acc5es = dataset_info['valid_acc1es'], dataset_info['valid_acc5es']
logger.log('Last Info : Train = Acc@1 {:.2f}% Acc@5 {:.2f}% Error@1 {:.2f}%, Test = Acc@1 {:.2f}% Acc@5 {:.2f}% Error@1 {:.2f}%'.format(train_acc1es[last_epoch], train_acc5es[last_epoch], 100-train_acc1es[last_epoch], valid_acc1es[last_epoch], valid_acc5es[last_epoch], 100-valid_acc1es[last_epoch]))
# measure elapsed time
seed_time.update(time.time() - start_time)
start_time = time.time()
need_time = 'Time Left: {:}'.format( convert_secs2time(seed_time.avg * (len(seeds)-_is-1), True) )
logger.log('\n<<<***>>> The {:02d}/{:02d}-th seed is {:} <finish> other procedures need {:}'.format(_is, len(seeds), seed, need_time))
logger.close()
def generate_meta_info(save_dir, max_node, divide=40):
aa_nas_bench_ss = get_search_spaces('cell', 'nas-bench-201')
archs = CellStructure.gen_all(aa_nas_bench_ss, max_node, False)
print('There are {:} archs vs {:}.'.format(
len(archs),
len(aa_nas_bench_ss)**((max_node - 1) * max_node / 2)))
random.seed(88) # please do not change this line for reproducibility
random.shuffle(archs)
# to test fixed-random shuffle
#print ('arch [0] : {:}\n---->>>> {:}'.format( archs[0], archs[0].tostr() ))
#print ('arch [9] : {:}\n---->>>> {:}'.format( archs[9], archs[9].tostr() ))
assert archs[0].tostr(
) == '|avg_pool_3x3~0|+|nor_conv_1x1~0|skip_connect~1|+|nor_conv_1x1~0|skip_connect~1|skip_connect~2|', 'please check the 0-th architecture : {:}'.format(
archs[0])
assert archs[9].tostr(
) == '|avg_pool_3x3~0|+|none~0|none~1|+|skip_connect~0|none~1|nor_conv_3x3~2|', 'please check the 9-th architecture : {:}'.format(
archs[9])
assert archs[123].tostr(
) == '|avg_pool_3x3~0|+|avg_pool_3x3~0|nor_conv_1x1~1|+|none~0|avg_pool_3x3~1|nor_conv_3x3~2|', 'please check the 123-th architecture : {:}'.format(
archs[123])
total_arch = len(archs)
num = 50000
indexes_5W = list(range(num))
random.seed(1021)
random.shuffle(indexes_5W)
train_split = sorted(list(set(indexes_5W[:num // 2])))
valid_split = sorted(list(set(indexes_5W[num // 2:])))
assert len(train_split) + len(valid_split) == num
assert train_split[0] == 0 and train_split[10] == 26 and train_split[
111] == 203 and valid_split[0] == 1 and valid_split[
10] == 18 and valid_split[
111] == 242, '{:} {:} {:} - {:} {:} {:}'.format(
train_split[0], train_split[10], train_split[111],
valid_split[0], valid_split[10], valid_split[111])
splits = {num: {'train': train_split, 'valid': valid_split}}
info = {
'archs': [x.tostr() for x in archs],
'total': total_arch,
'max_node': max_node,
'splits': splits
}
save_dir = Path(save_dir)
save_dir.mkdir(parents=True, exist_ok=True)
save_name = save_dir / 'meta-node-{:}.pth'.format(max_node)
assert not save_name.exists(), '{:} already exist'.format(save_name)
torch.save(info, save_name)
print('save the meta file into {:}'.format(save_name))
def check_unique_arch(meta_file):
api = API(str(meta_file))
arch_strs = deepcopy(api.meta_archs)
xarchs = [CellStructure.str2structure(x) for x in arch_strs]
def get_unique_matrix(archs, consider_zero):
UniquStrs = [arch.to_unique_str(consider_zero) for arch in archs]
print("{:} create unique-string ({:}/{:}) done".format(
time_string(), len(set(UniquStrs)), len(UniquStrs)))
Unique2Index = dict()
for index, xstr in enumerate(UniquStrs):
if xstr not in Unique2Index:
Unique2Index[xstr] = list()
Unique2Index[xstr].append(index)
sm_matrix = torch.eye(len(archs)).bool()
for _, xlist in Unique2Index.items():
for i in xlist:
for j in xlist:
sm_matrix[i, j] = True
unique_ids, unique_num = [-1 for _ in archs], 0
for i in range(len(unique_ids)):
if unique_ids[i] > -1:
continue
neighbours = sm_matrix[i].nonzero().view(-1).tolist()
for nghb in neighbours:
assert unique_ids[nghb] == -1, "impossible"
unique_ids[nghb] = unique_num
unique_num += 1
return sm_matrix, unique_ids, unique_num
print("There are {:} valid-archs".format(
sum(arch.check_valid() for arch in xarchs)))
sm_matrix, uniqueIDs, unique_num = get_unique_matrix(xarchs, None)
print(
"{:} There are {:} unique architectures (considering nothing).".format(
time_string(), unique_num))
sm_matrix, uniqueIDs, unique_num = get_unique_matrix(xarchs, False)
print("{:} There are {:} unique architectures (not considering zero).".
format(time_string(), unique_num))
sm_matrix, uniqueIDs, unique_num = get_unique_matrix(xarchs, True)
print("{:} There are {:} unique architectures (considering zero).".format(
time_string(), unique_num))
def test_issue_81_82(api):
results = api.query_by_index(0, 'cifar10-valid', hp='12')
results = api.query_by_index(0, 'cifar10-valid', hp='200')
print(list(results.keys()))
print(results[888].get_eval('valid'))
print(results[888].get_eval('x-valid'))
result_dict = api.get_more_info(index=0,
dataset='cifar10-valid',
iepoch=11,
hp='200',
is_random=False)
info = api.query_by_arch(
'|nor_conv_3x3~0|+|skip_connect~0|nor_conv_3x3~1|+|skip_connect~0|none~1|nor_conv_3x3~2|',
'200')
print(info)
structure = CellStructure.str2structure(
'|nor_conv_3x3~0|+|skip_connect~0|nor_conv_3x3~1|+|skip_connect~0|none~1|nor_conv_3x3~2|'
)
info = api.query_by_arch(structure, '200')
print(info)
def get_all_archs(operations):
combs = []
for i in range(1, 4):
for j in range(i):
if len(combs) == 0:
for func in operations[(i, j)]:
combs.append([(func, j)])
else:
new_combs = []
for string in combs:
for func in operations[(i, j)]:
xstring = string + [(func, j)]
new_combs.append(xstring)
combs = new_combs
operations = combs
operations_ = []
for ops in operations:
temp = [[ops[0]], [ops[1], ops[2]], [ops[3], ops[4], ops[5]]]
operations_.append(CellStructure(temp))
return operations_
def main(save_dir, workers, datasets, xpaths, splits, use_less, srange, arch_index, seeds, cover_mode, meta_info, arch_config):
assert torch.cuda.is_available(), 'CUDA is not available.'
torch.backends.cudnn.enabled = True
#torch.backends.cudnn.benchmark = True
torch.backends.cudnn.deterministic = True
torch.set_num_threads( workers )
assert len(srange) == 2 and 0 <= srange[0] <= srange[1], 'invalid srange : {:}'.format(srange)
if use_less:
sub_dir = Path(save_dir) / '{:06d}-{:06d}-C{:}-N{:}-LESS'.format(srange[0], srange[1], arch_config['channel'], arch_config['num_cells'])
else:
sub_dir = Path(save_dir) / '{:06d}-{:06d}-C{:}-N{:}'.format(srange[0], srange[1], arch_config['channel'], arch_config['num_cells'])
logger = Logger(str(sub_dir), 0, False)
all_archs = meta_info['archs']
assert srange[1] < meta_info['total'], 'invalid range : {:}-{:} vs. {:}'.format(srange[0], srange[1], meta_info['total'])
assert arch_index == -1 or srange[0] <= arch_index <= srange[1], 'invalid range : {:} vs. {:} vs. {:}'.format(srange[0], arch_index, srange[1])
if arch_index == -1:
to_evaluate_indexes = list(range(srange[0], srange[1]+1))
else:
to_evaluate_indexes = [arch_index]
logger.log('xargs : seeds = {:}'.format(seeds))
logger.log('xargs : arch_index = {:}'.format(arch_index))
logger.log('xargs : cover_mode = {:}'.format(cover_mode))
logger.log('-'*100)
logger.log('Start evaluating range =: {:06d} vs. {:06d} vs. {:06d} / {:06d} with cover-mode={:}'.format(srange[0], arch_index, srange[1], meta_info['total'], cover_mode))
for i, (dataset, xpath, split) in enumerate(zip(datasets, xpaths, splits)):
logger.log('--->>> Evaluate {:}/{:} : dataset={:9s}, path={:}, split={:}'.format(i, len(datasets), dataset, xpath, split))
logger.log('--->>> architecture config : {:}'.format(arch_config))
start_time, epoch_time = time.time(), AverageMeter()
for i, index in enumerate(to_evaluate_indexes):
arch = all_archs[index]
logger.log('\n{:} evaluate {:06d}/{:06d} ({:06d}/{:06d})-th architecture [seeds={:}] {:}'.format('-'*15, i, len(to_evaluate_indexes), index, meta_info['total'], seeds, '-'*15))
#logger.log('{:} {:} {:}'.format('-'*15, arch.tostr(), '-'*15))
logger.log('{:} {:} {:}'.format('-'*15, arch, '-'*15))
# test this arch on different datasets with different seeds
has_continue = False
for seed in seeds:
to_save_name = sub_dir / 'arch-{:06d}-seed-{:04d}.pth'.format(index, seed)
if to_save_name.exists():
if cover_mode:
logger.log('Find existing file : {:}, remove it before evaluation'.format(to_save_name))
os.remove(str(to_save_name))
else :
logger.log('Find existing file : {:}, skip this evaluation'.format(to_save_name))
has_continue = True
continue
results = evaluate_all_datasets(CellStructure.str2structure(arch), \
datasets, xpaths, splits, use_less, seed, \
arch_config, workers, logger)
torch.save(results, to_save_name)
logger.log('{:} --evaluate-- {:06d}/{:06d} ({:06d}/{:06d})-th seed={:} done, save into {:}'.format('-'*15, i, len(to_evaluate_indexes), index, meta_info['total'], seed, to_save_name))
# measure elapsed time
if not has_continue: epoch_time.update(time.time() - start_time)
start_time = time.time()
need_time = 'Time Left: {:}'.format( convert_secs2time(epoch_time.avg * (len(to_evaluate_indexes)-i-1), True) )
logger.log('This arch costs : {:}'.format( convert_secs2time(epoch_time.val, True) ))
logger.log('{:}'.format('*'*100))
logger.log('{:} {:74s} {:}'.format('*'*10, '{:06d}/{:06d} ({:06d}/{:06d})-th done, left {:}'.format(i, len(to_evaluate_indexes), index, meta_info['total'], need_time), '*'*10))
logger.log('{:}'.format('*'*100))
logger.close()
def main(xargs):
cifar10 = tf.keras.datasets.cifar10
(x_train, y_train), (x_test, y_test) = cifar10.load_data()
x_train, x_test = x_train / 255.0, x_test / 255.0
x_train, x_test = x_train.astype('float32'), x_test.astype('float32')
# Add a channels dimension
all_indexes = list(range(x_train.shape[0]))
random.shuffle(all_indexes)
s_train_idxs, s_valid_idxs = all_indexes[::2], all_indexes[1::2]
search_train_x, search_train_y = x_train[s_train_idxs], y_train[
s_train_idxs]
search_valid_x, search_valid_y = x_train[s_valid_idxs], y_train[
s_valid_idxs]
#x_train, x_test = x_train[..., tf.newaxis], x_test[..., tf.newaxis]
# Use tf.data
#train_ds = tf.data.Dataset.from_tensor_slices((x_train, y_train)).shuffle(10000).batch(64)
search_ds = tf.data.Dataset.from_tensor_slices(
(search_train_x, search_train_y, search_valid_x, search_valid_y))
search_ds = search_ds.map(pre_process).shuffle(1000).batch(64)
test_ds = tf.data.Dataset.from_tensor_slices((x_test, y_test)).batch(32)
# Create an instance of the model
config = dict2config(
{
'name': 'GDAS',
'C': xargs.channel,
'N': xargs.num_cells,
'max_nodes': xargs.max_nodes,
'num_classes': 10,
'space': 'nas-bench-102',
'affine': True
}, None)
model = get_cell_based_tiny_net(config)
#import pdb; pdb.set_trace()
#model.build(((64, 32, 32, 3), (1,)))
#for x in model.trainable_variables:
# print('{:30s} : {:}'.format(x.name, x.shape))
# Choose optimizer
loss_object = tf.keras.losses.SparseCategoricalCrossentropy()
w_optimizer = SGDW(learning_rate=xargs.w_lr,
weight_decay=xargs.w_weight_decay,
momentum=xargs.w_momentum,
nesterov=True)
a_optimizer = AdamW(learning_rate=xargs.arch_learning_rate,
weight_decay=xargs.arch_weight_decay,
beta_1=0.5,
beta_2=0.999,
epsilon=1e-07)
#w_optimizer = tf.keras.optimizers.SGD(learning_rate=0.025, momentum=0.9, nesterov=True)
#a_optimizer = tf.keras.optimizers.AdamW(learning_rate=xargs.arch_learning_rate, beta_1=0.5, beta_2=0.999, epsilon=1e-07)
####
# metrics
train_loss = tf.keras.metrics.Mean(name='train_loss')
train_accuracy = tf.keras.metrics.SparseCategoricalAccuracy(
name='train_accuracy')
valid_loss = tf.keras.metrics.Mean(name='valid_loss')
valid_accuracy = tf.keras.metrics.SparseCategoricalAccuracy(
name='valid_accuracy')
test_loss = tf.keras.metrics.Mean(name='test_loss')
test_accuracy = tf.keras.metrics.SparseCategoricalAccuracy(
name='test_accuracy')
@tf.function
def search_step(train_images, train_labels, valid_images, valid_labels,
tf_tau):
# optimize weights
with tf.GradientTape() as tape:
predictions = model(train_images, tf_tau, True)
w_loss = loss_object(train_labels, predictions)
net_w_param = model.get_weights()
gradients = tape.gradient(w_loss, net_w_param)
w_optimizer.apply_gradients(zip(gradients, net_w_param))
train_loss(w_loss)
train_accuracy(train_labels, predictions)
# optimize alphas
with tf.GradientTape() as tape:
predictions = model(valid_images, tf_tau, True)
a_loss = loss_object(valid_labels, predictions)
net_a_param = model.get_alphas()
gradients = tape.gradient(a_loss, net_a_param)
a_optimizer.apply_gradients(zip(gradients, net_a_param))
valid_loss(a_loss)
valid_accuracy(valid_labels, predictions)
# TEST
@tf.function
def test_step(images, labels):
predictions = model(images)
t_loss = loss_object(labels, predictions)
test_loss(t_loss)
test_accuracy(labels, predictions)
print(
'{:} start searching with {:} epochs ({:} batches per epoch).'.format(
time_string(), xargs.epochs,
tf.data.experimental.cardinality(search_ds).numpy()))
for epoch in range(xargs.epochs):
# Reset the metrics at the start of the next epoch
train_loss.reset_states()
train_accuracy.reset_states()
test_loss.reset_states()
test_accuracy.reset_states()
cur_tau = xargs.tau_max - (xargs.tau_max -
xargs.tau_min) * epoch / (xargs.epochs - 1)
tf_tau = tf.cast(cur_tau, dtype=tf.float32, name='tau')
for trn_imgs, trn_labels, val_imgs, val_labels in search_ds:
search_step(trn_imgs, trn_labels, val_imgs, val_labels, tf_tau)
genotype = model.genotype()
genotype = CellStructure(genotype)
#for test_images, test_labels in test_ds:
# test_step(test_images, test_labels)
template = '{:} Epoch {:03d}/{:03d}, Train-Loss: {:.3f}, Train-Accuracy: {:.2f}%, Valid-Loss: {:.3f}, Valid-Accuracy: {:.2f}% | tau={:.3f}'
print(
template.format(time_string(), epoch + 1, xargs.epochs,
train_loss.result(),
train_accuracy.result() * 100, valid_loss.result(),
valid_accuracy.result() * 100, cur_tau))
print('{:} genotype : {:}\n{:}\n'.format(time_string(), genotype,
model.get_np_alphas()))
def create_result_count(
used_seed: int,
dataset: Text,
arch_config: Dict[Text, Any],
results: Dict[Text, Any],
dataloader_dict: Dict[Text, Any],
) -> ResultsCount:
xresult = ResultsCount(
dataset,
results["net_state_dict"],
results["train_acc1es"],
results["train_losses"],
results["param"],
results["flop"],
arch_config,
used_seed,
results["total_epoch"],
None,
)
net_config = dict2config(
{
"name": "infer.tiny",
"C": arch_config["channel"],
"N": arch_config["num_cells"],
"genotype": CellStructure.str2structure(arch_config["arch_str"]),
"num_classes": arch_config["class_num"],
},
None,
)
if "train_times" in results: # new version
xresult.update_train_info(
results["train_acc1es"],
results["train_acc5es"],
results["train_losses"],
results["train_times"],
)
xresult.update_eval(results["valid_acc1es"], results["valid_losses"],
results["valid_times"])
else:
network = get_cell_based_tiny_net(net_config)
network.load_state_dict(xresult.get_net_param())
if dataset == "cifar10-valid":
xresult.update_OLD_eval("x-valid", results["valid_acc1es"],
results["valid_losses"])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict["{:}@{:}".format("cifar10", "test")],
network.cuda())
xresult.update_OLD_eval(
"ori-test",
{results["total_epoch"] - 1: top1},
{results["total_epoch"] - 1: loss},
)
xresult.update_latency(latencies)
elif dataset == "cifar10":
xresult.update_OLD_eval("ori-test", results["valid_acc1es"],
results["valid_losses"])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict["{:}@{:}".format(dataset, "test")],
network.cuda())
xresult.update_latency(latencies)
elif dataset == "cifar100" or dataset == "ImageNet16-120":
xresult.update_OLD_eval("ori-test", results["valid_acc1es"],
results["valid_losses"])
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict["{:}@{:}".format(dataset, "valid")],
network.cuda())
xresult.update_OLD_eval(
"x-valid",
{results["total_epoch"] - 1: top1},
{results["total_epoch"] - 1: loss},
)
loss, top1, top5, latencies = pure_evaluate(
dataloader_dict["{:}@{:}".format(dataset, "test")],
network.cuda())
xresult.update_OLD_eval(
"x-test",
{results["total_epoch"] - 1: top1},
{results["total_epoch"] - 1: loss},
)
xresult.update_latency(latencies)
else:
raise ValueError("invalid dataset name : {:}".format(dataset))
return xresult
def train_single_model(
save_dir, workers, datasets, xpaths, splits, use_less, seeds, model_str, arch_config
):
assert torch.cuda.is_available(), "CUDA is not available."
torch.backends.cudnn.enabled = True
torch.backends.cudnn.deterministic = True
# torch.backends.cudnn.benchmark = True
torch.set_num_threads(workers)
save_dir = (
Path(save_dir)
/ "specifics"
/ "{:}-{:}-{:}-{:}".format(
"LESS" if use_less else "FULL",
model_str,
arch_config["channel"],
arch_config["num_cells"],
)
)
logger = Logger(str(save_dir), 0, False)
if model_str in CellArchitectures:
arch = CellArchitectures[model_str]
logger.log(
"The model string is found in pre-defined architecture dict : {:}".format(
model_str
)
)
else:
try:
arch = CellStructure.str2structure(model_str)
except:
raise ValueError(
"Invalid model string : {:}. It can not be found or parsed.".format(
model_str
)
)
assert arch.check_valid_op(
get_search_spaces("cell", "full")
), "{:} has the invalid op.".format(arch)
logger.log("Start train-evaluate {:}".format(arch.tostr()))
logger.log("arch_config : {:}".format(arch_config))
start_time, seed_time = time.time(), AverageMeter()
for _is, seed in enumerate(seeds):
logger.log(
"\nThe {:02d}/{:02d}-th seed is {:} ----------------------<.>----------------------".format(
_is, len(seeds), seed
)
)
to_save_name = save_dir / "seed-{:04d}.pth".format(seed)
if to_save_name.exists():
logger.log(
"Find the existing file {:}, directly load!".format(to_save_name)
)
checkpoint = torch.load(to_save_name)
else:
logger.log(
"Does not find the existing file {:}, train and evaluate!".format(
to_save_name
)
)
checkpoint = evaluate_all_datasets(
arch,
datasets,
xpaths,
splits,
use_less,
seed,
arch_config,
workers,
logger,
)
torch.save(checkpoint, to_save_name)
# log information
logger.log("{:}".format(checkpoint["info"]))
all_dataset_keys = checkpoint["all_dataset_keys"]
for dataset_key in all_dataset_keys:
logger.log(
"\n{:} dataset : {:} {:}".format("-" * 15, dataset_key, "-" * 15)
)
dataset_info = checkpoint[dataset_key]
# logger.log('Network ==>\n{:}'.format( dataset_info['net_string'] ))
logger.log(
"Flops = {:} MB, Params = {:} MB".format(
dataset_info["flop"], dataset_info["param"]
)
)
logger.log("config : {:}".format(dataset_info["config"]))
logger.log(
"Training State (finish) = {:}".format(dataset_info["finish-train"])
)
last_epoch = dataset_info["total_epoch"] - 1
train_acc1es, train_acc5es = (
dataset_info["train_acc1es"],
dataset_info["train_acc5es"],
)
valid_acc1es, valid_acc5es = (
dataset_info["valid_acc1es"],
dataset_info["valid_acc5es"],
)
logger.log(
"Last Info : Train = Acc@1 {:.2f}% Acc@5 {:.2f}% Error@1 {:.2f}%, Test = Acc@1 {:.2f}% Acc@5 {:.2f}% Error@1 {:.2f}%".format(
train_acc1es[last_epoch],
train_acc5es[last_epoch],
100 - train_acc1es[last_epoch],
valid_acc1es[last_epoch],
valid_acc5es[last_epoch],
100 - valid_acc1es[last_epoch],
)
)
# measure elapsed time
seed_time.update(time.time() - start_time)
start_time = time.time()
need_time = "Time Left: {:}".format(
convert_secs2time(seed_time.avg * (len(seeds) - _is - 1), True)
)
logger.log(
"\n<<<***>>> The {:02d}/{:02d}-th seed is {:} <finish> other procedures need {:}".format(
_is, len(seeds), seed, need_time
)
)
logger.close()
