def test_log_multiple_metrics(self):
log_dir = tempfile.mkdtemp(dir=self.get_temp_dir())
log = logger.BenchmarkLogger(log_dir)
log.log_metric("accuracy",
0.999,
global_step=1e4,
extras={"name": "value"})
log.log_metric("loss", 0.02, global_step=1e4)
metric_log = os.path.join(log_dir, "metric.log")
self.assertTrue(tf.gfile.Exists(metric_log))
with tf.gfile.GFile(metric_log) as f:
accuracy = json.loads(f.readline())
self.assertEqual(accuracy["name"], "accuracy")
self.assertEqual(accuracy["value"], 0.999)
self.assertEqual(accuracy["unit"], None)
self.assertEqual(accuracy["global_step"], 1e4)
self.assertEqual(accuracy["extras"], [{
"name": "name",
"value": "value"
}])
loss = json.loads(f.readline())
self.assertEqual(loss["name"], "loss")
self.assertEqual(loss["value"], 0.02)
self.assertEqual(loss["unit"], None)
self.assertEqual(loss["global_step"], 1e4)
self.assertEqual(loss["extras"], [])
def test_log_non_nubmer_value(self):
log_dir = tempfile.mkdtemp(dir=self.get_temp_dir())
log = logger.BenchmarkLogger(log_dir)
const = tf.constant(1)
log.log_metric("accuracy", const)
metric_log = os.path.join(log_dir, "metric.log")
self.assertFalse(tf.gfile.Exists(metric_log))
def test_log_evaluation_result_with_invalid_type(self):
eval_result = "{'loss': 0.46237424, 'global_step': 207082}"
log_dir = tempfile.mkdtemp(dir=self.get_temp_dir())
log = logger.BenchmarkLogger(log_dir)
log.log_estimator_evaluation_result(eval_result)
metric_log = os.path.join(log_dir, "metric.log")
self.assertFalse(tf.gfile.Exists(metric_log))
def __init__(self,
tensors,
log_dir=None,
metric_logger=None,
every_n_iter=None,
every_n_secs=None,
at_end=False):
"""Initializer for LoggingMetricHook.
Args:
tensors: `dict` that maps string-valued tags to tensors/tensor names,
or `iterable` of tensors/tensor names.
log_dir: `string`, directory path that metric hook should write log to.
metric_logger: instance of `BenchmarkLogger`, the benchmark logger that
hook should use to write the log. Exactly one of the `log_dir` and
`metric_logger` should be provided.
every_n_iter: `int`, print the values of `tensors` once every N local
steps taken on the current worker.
every_n_secs: `int` or `float`, print the values of `tensors` once every N
seconds. Exactly one of `every_n_iter` and `every_n_secs` should be
provided.
at_end: `bool` specifying whether to print the values of `tensors` at the
end of the run.
Raises:
ValueError:
1. `every_n_iter` is non-positive, or
2. Exactly one of every_n_iter and every_n_secs should be provided.
3. Exactly one of log_dir and metric_logger should be provided.
"""
super(LoggingMetricHook, self).__init__(tensors=tensors,
every_n_iter=every_n_iter,
every_n_secs=every_n_secs,
at_end=at_end)
if (log_dir is None) == (metric_logger is None):
raise ValueError(
"exactly one of log_dir and metric_logger should be provided.")
if log_dir is not None:
self._logger = logger.BenchmarkLogger(log_dir)
else:
self._logger = metric_logger
def test_log_evaluation_result(self):
eval_result = {"loss": 0.46237424,
"global_step": 207082,
"accuracy": 0.9285}
log_dir = tempfile.mkdtemp(dir=self.get_temp_dir())
log = logger.BenchmarkLogger(log_dir)
log.log_estimator_evaluation_result(eval_result)
metric_log = os.path.join(log_dir, "metric.log")
self.assertTrue(tf.gfile.Exists(metric_log))
with tf.gfile.GFile(metric_log) as f:
accuracy = json.loads(f.readline())
self.assertEqual(accuracy["name"], "accuracy")
self.assertEqual(accuracy["value"], 0.9285)
self.assertEqual(accuracy["unit"], None)
self.assertEqual(accuracy["global_step"], 207082)
loss = json.loads(f.readline())
self.assertEqual(loss["name"], "loss")
self.assertEqual(loss["value"], 0.46237424)
self.assertEqual(loss["unit"], None)
self.assertEqual(loss["global_step"], 207082)
def resnet_main(flags, model_function, input_function, shape=None):
"""Shared main loop for ResNet Models.
Args:
flags: FLAGS object that contains the params for running. See
ResnetArgParser for created flags.
model_function: the function that instantiates the Model and builds the
ops for train/eval. This will be passed directly into the estimator.
input_function: the function that processes the dataset and returns a
dataset that the estimator can train on. This will be wrapped with
all the relevant flags for running and passed to estimator.
shape: list of ints representing the shape of the images used for training.
This is only used if flags.export_dir is passed.
"""
# Using the Winograd non-fused algorithms provides a small performance boost.
os.environ['TF_ENABLE_WINOGRAD_NONFUSED'] = '1'
if flags.multi_gpu:
validate_batch_size_for_multi_gpu(flags.batch_size)
# There are two steps required if using multi-GPU: (1) wrap the model_fn,
# and (2) wrap the optimizer. The first happens here, and (2) happens
# in the model_fn itself when the optimizer is defined.
model_function = tf.contrib.estimator.replicate_model_fn(
model_function, loss_reduction=tf.losses.Reduction.MEAN)
# Create session config based on values of inter_op_parallelism_threads and
# intra_op_parallelism_threads. Note that we default to having
# allow_soft_placement = True, which is required for multi-GPU and not
# harmful for other modes.
session_config = tf.ConfigProto(
inter_op_parallelism_threads=flags.inter_op_parallelism_threads,
intra_op_parallelism_threads=flags.intra_op_parallelism_threads,
allow_soft_placement=True)
# Set up a RunConfig to save checkpoint and set session config.
run_config = tf.estimator.RunConfig().replace(
save_checkpoints_secs=1e9, session_config=session_config)
classifier = tf.estimator.Estimator(model_fn=model_function,
model_dir=flags.model_dir,
config=run_config,
params={
'resnet_size': flags.resnet_size,
'data_format': flags.data_format,
'batch_size': flags.batch_size,
'multi_gpu': flags.multi_gpu,
'version': flags.version,
'loss_scale': flags.loss_scale,
'dtype': flags.dtype
})
if flags.benchmark_log_dir is not None:
benchmark_logger = logger.BenchmarkLogger(flags.benchmark_log_dir)
benchmark_logger.log_run_info('resnet')
else:
benchmark_logger = None
for _ in range(flags.train_epochs // flags.epochs_between_evals):
train_hooks = hooks_helper.get_train_hooks(
flags.hooks,
batch_size=flags.batch_size,
benchmark_log_dir=flags.benchmark_log_dir)
print('Starting a training cycle.')
def input_fn_train():
return input_function(True, flags.data_dir, flags.batch_size,
flags.epochs_between_evals,
flags.num_parallel_calls, flags.multi_gpu)
classifier.train(input_fn=input_fn_train,
hooks=train_hooks,
max_steps=flags.max_train_steps)
print('Starting to evaluate.')
# Evaluate the model and print results
def input_fn_eval():
return input_function(False, flags.data_dir, flags.batch_size, 1,
flags.num_parallel_calls, flags.multi_gpu)
# flags.max_train_steps is generally associated with testing and profiling.
# As a result it is frequently called with synthetic data, which will
# iterate forever. Passing steps=flags.max_train_steps allows the eval
# (which is generally unimportant in those circumstances) to terminate.
# Note that eval will run for max_train_steps each loop, regardless of the
# global_step count.
eval_results = classifier.evaluate(input_fn=input_fn_eval,
steps=flags.max_train_steps)
print(eval_results)
if benchmark_logger:
benchmark_logger.log_estimator_evaluation_result(eval_results)
if model_helpers.past_stop_threshold(flags.stop_threshold,
eval_results['accuracy']):
break
if flags.export_dir is not None:
warn_on_multi_gpu_export(flags.multi_gpu)
# Exports a saved model for the given classifier.
input_receiver_fn = export.build_tensor_serving_input_receiver_fn(
shape, batch_size=flags.batch_size)
classifier.export_savedmodel(flags.export_dir, input_receiver_fn)
def test_create_logging_dir(self):
non_exist_temp_dir = os.path.join(self.get_temp_dir(), "unknown_dir")
self.assertFalse(tf.gfile.IsDirectory(non_exist_temp_dir))
logger.BenchmarkLogger(non_exist_temp_dir)
self.assertTrue(tf.gfile.IsDirectory(non_exist_temp_dir))
def resnet_main(seed, flags, model_function, input_function, shape=None):
"""Shared main loop for ResNet Models.
Args:
flags: FLAGS object that contains the params for running. See
ResnetArgParser for created flags.
model_function: the function that instantiates the Model and builds the
ops for train/eval. This will be passed directly into the estimator.
input_function: the function that processes the dataset and returns a
dataset that the estimator can train on. This will be wrapped with
all the relevant flags for running and passed to estimator.
shape: list of ints representing the shape of the images used for training.
This is only used if flags.export_dir is passed.
"""
mlperf_log.resnet_print(key=mlperf_log.RUN_START)
# Using the Winograd non-fused algorithms provides a small performance boost.
os.environ['TF_ENABLE_WINOGRAD_NONFUSED'] = '1'
# Create session config based on values of inter_op_parallelism_threads and
# intra_op_parallelism_threads. Note that we default to having
# allow_soft_placement = True, which is required for multi-GPU and not
# harmful for other modes.
session_config = tf.ConfigProto(
inter_op_parallelism_threads=flags.inter_op_parallelism_threads,
intra_op_parallelism_threads=flags.intra_op_parallelism_threads,
allow_soft_placement=True)
if flags.num_gpus == 0:
distribution = tf.contrib.distribute.OneDeviceStrategy('device:CPU:0')
elif flags.num_gpus == 1:
distribution = tf.contrib.distribute.OneDeviceStrategy('device:GPU:0')
else:
distribution = tf.contrib.distribute.MirroredStrategy(
num_gpus=flags.num_gpus)
mlperf_log.resnet_print(key=mlperf_log.RUN_SET_RANDOM_SEED, value=seed)
run_config = tf.estimator.RunConfig(train_distribute=distribution,
session_config=session_config,
tf_random_seed=seed)
mlperf_log.resnet_print(key=mlperf_log.INPUT_BATCH_SIZE,
value=flags.batch_size)
classifier = tf.estimator.Estimator(model_fn=model_function,
model_dir=flags.model_dir,
config=run_config,
params={
'resnet_size': flags.resnet_size,
'data_format': flags.data_format,
'batch_size': flags.batch_size,
'version': flags.version,
'loss_scale': flags.loss_scale,
'dtype': flags.dtype,
'label_smoothing':
flags.label_smoothing,
'enable_lars': flags.enable_lars,
'weight_decay': flags.weight_decay,
'fine_tune': flags.fine_tune
})
if flags.benchmark_log_dir is not None:
benchmark_logger = logger.BenchmarkLogger(flags.benchmark_log_dir)
benchmark_logger.log_run_info('resnet')
else:
benchmark_logger = None
mlperf_log.resnet_print(key=mlperf_log.TRAIN_LOOP)
# The reference performs the first evaluation on the fourth epoch. (offset
# eval by 3 epochs)
mlperf_log.resnet_print(key=mlperf_log.EVAL_EPOCH_OFFSET, value=3)
success = False
for i in range(flags.train_epochs // flags.epochs_between_evals):
# Data for epochs_between_evals (i.e. 4 epochs between evals) worth of
# epochs is concatenated and run as a single block inside a session. For
# this reason we declare all of the epochs that will be run at the start.
# Submitters may report in a way which is reasonable for their control flow.
for j in range(flags.epochs_between_evals):
mlperf_log.resnet_print(key=mlperf_log.TRAIN_EPOCH,
value=i * flags.epochs_between_evals + j)
train_hooks = hooks_helper.get_train_hooks(
flags.hooks,
batch_size=flags.batch_size,
benchmark_log_dir=flags.benchmark_log_dir)
_log_cache = []
def formatter(x):
"""Abuse side effects to get tensors out of the model_fn."""
if _log_cache:
_log_cache.pop()
_log_cache.append(x.copy())
return str(x)
compliance_hook = tf.train.LoggingTensorHook(
tensors={_NUM_EXAMPLES_NAME: _NUM_EXAMPLES_NAME},
every_n_iter=int(1e10),
at_end=True,
formatter=formatter)
print('Starting a training cycle.')
def input_fn_train():
return input_function(is_training=True,
data_dir=flags.data_dir,
batch_size=per_device_batch_size(
flags.batch_size, flags.num_gpus),
num_epochs=flags.epochs_between_evals,
num_gpus=flags.num_gpus,
dtype=flags.dtype)
classifier.train(input_fn=input_fn_train,
hooks=train_hooks + [compliance_hook],
max_steps=flags.max_train_steps)
train_examples = int(_log_cache.pop()[_NUM_EXAMPLES_NAME])
mlperf_log.resnet_print(key=mlperf_log.INPUT_SIZE,
value=train_examples)
print('Starting to evaluate.')
# Evaluate the model and print results
def input_fn_eval():
return input_function(is_training=False,
data_dir=flags.data_dir,
batch_size=per_device_batch_size(
flags.batch_size, flags.num_gpus),
num_epochs=1,
dtype=flags.dtype)
mlperf_log.resnet_print(key=mlperf_log.EVAL_START)
# flags.max_train_steps is generally associated with testing and profiling.
# As a result it is frequently called with synthetic data, which will
# iterate forever. Passing steps=flags.max_train_steps allows the eval
# (which is generally unimportant in those circumstances) to terminate.
# Note that eval will run for max_train_steps each loop, regardless of the
# global_step count.
eval_results = classifier.evaluate(input_fn=input_fn_eval,
steps=flags.max_train_steps)
mlperf_log.resnet_print(key=mlperf_log.EVAL_STOP)
mlperf_log.resnet_print(key=mlperf_log.EVAL_SIZE,
value=int(eval_results[_NUM_EXAMPLES_NAME]))
mlperf_log.resnet_print(key=mlperf_log.EVAL_ACCURACY,
value=float(eval_results['accuracy']))
mlperf_log.resnet_print(key=mlperf_log.EVAL_TARGET,
value=flags.stop_threshold)
print(eval_results)
if benchmark_logger:
benchmark_logger.log_estimator_evaluation_result(eval_results)
if model_helpers.past_stop_threshold(flags.stop_threshold,
eval_results['accuracy']):
success = True
break
mlperf_log.resnet_print(key=mlperf_log.RUN_STOP,
value={"success": success})
mlperf_log.resnet_print(key=mlperf_log.RUN_FINAL)
