Spaces:
Running
Running
File size: 5,242 Bytes
650c5f6 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 |
#!/usr/bin/env python3 -u
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import logging
import os
import sys
from argparse import Namespace
from itertools import chain
import torch
from fairseq import checkpoint_utils, distributed_utils, options, utils
from fairseq.dataclass.utils import convert_namespace_to_omegaconf
from fairseq.logging import metrics, progress_bar
from fairseq.utils import reset_logging
from omegaconf import DictConfig
logging.basicConfig(
format="%(asctime)s | %(levelname)s | %(name)s | %(message)s",
datefmt="%Y-%m-%d %H:%M:%S",
level=os.environ.get("LOGLEVEL", "INFO").upper(),
stream=sys.stdout,
)
logger = logging.getLogger("fairseq_cli.validate")
def main(cfg: DictConfig, override_args=None):
if isinstance(cfg, Namespace):
cfg = convert_namespace_to_omegaconf(cfg)
utils.import_user_module(cfg.common)
reset_logging()
assert (
cfg.dataset.max_tokens is not None or cfg.dataset.batch_size is not None
), "Must specify batch size either with --max-tokens or --batch-size"
use_fp16 = cfg.common.fp16
use_cuda = torch.cuda.is_available() and not cfg.common.cpu
if use_cuda:
torch.cuda.set_device(cfg.distributed_training.device_id)
if cfg.distributed_training.distributed_world_size > 1:
data_parallel_world_size = distributed_utils.get_data_parallel_world_size()
data_parallel_rank = distributed_utils.get_data_parallel_rank()
else:
data_parallel_world_size = 1
data_parallel_rank = 0
if override_args is not None:
overrides = vars(override_args)
overrides.update(eval(getattr(override_args, "model_overrides", "{}")))
else:
overrides = None
# Load ensemble
logger.info("loading model(s) from {}".format(cfg.common_eval.path))
models, saved_cfg, task = checkpoint_utils.load_model_ensemble_and_task(
[cfg.common_eval.path],
arg_overrides=overrides,
suffix=cfg.checkpoint.checkpoint_suffix,
)
model = models[0]
# Move models to GPU
for model in models:
model.eval()
if use_fp16:
model.half()
if use_cuda:
model.cuda()
# Print args
logger.info(saved_cfg)
# Build criterion
criterion = task.build_criterion(saved_cfg.criterion)
criterion.eval()
for subset in cfg.dataset.valid_subset.split(","):
try:
task.load_dataset(subset, combine=False, epoch=1, task_cfg=saved_cfg.task)
dataset = task.dataset(subset)
except KeyError:
raise Exception("Cannot find dataset: " + subset)
# Initialize data iterator
itr = task.get_batch_iterator(
dataset=dataset,
max_tokens=cfg.dataset.max_tokens,
max_sentences=cfg.dataset.batch_size,
max_positions=utils.resolve_max_positions(
task.max_positions(),
*[m.max_positions() for m in models],
),
ignore_invalid_inputs=cfg.dataset.skip_invalid_size_inputs_valid_test,
required_batch_size_multiple=cfg.dataset.required_batch_size_multiple,
seed=cfg.common.seed,
num_shards=data_parallel_world_size,
shard_id=data_parallel_rank,
num_workers=cfg.dataset.num_workers,
data_buffer_size=cfg.dataset.data_buffer_size,
).next_epoch_itr(shuffle=False)
progress = progress_bar.progress_bar(
itr,
log_format=cfg.common.log_format,
log_interval=cfg.common.log_interval,
prefix=f"valid on '{subset}' subset",
default_log_format=("tqdm" if not cfg.common.no_progress_bar else "simple"),
)
log_outputs = []
for i, sample in enumerate(progress):
sample = utils.move_to_cuda(sample) if use_cuda else sample
_loss, _sample_size, log_output = task.valid_step(sample, model, criterion)
progress.log(log_output, step=i)
log_outputs.append(log_output)
if data_parallel_world_size > 1:
log_outputs = distributed_utils.all_gather_list(
log_outputs,
max_size=cfg.common.all_gather_list_size,
group=distributed_utils.get_data_parallel_group(),
)
log_outputs = list(chain.from_iterable(log_outputs))
with metrics.aggregate() as agg:
task.reduce_metrics(log_outputs, criterion)
log_output = agg.get_smoothed_values()
progress.print(log_output, tag=subset, step=i)
def cli_main():
parser = options.get_validation_parser()
args = options.parse_args_and_arch(parser)
# only override args that are explicitly given on the command line
override_parser = options.get_validation_parser()
override_args = options.parse_args_and_arch(
override_parser, suppress_defaults=True
)
distributed_utils.call_main(
convert_namespace_to_omegaconf(args), main, override_args=override_args
)
if __name__ == "__main__":
cli_main()
|