def define_benchmark(benchmark_log_dir=True, bigquery_uploader=True):
"""Register benchmarking flags.
Args:
benchmark_log_dir: Create a flag to specify location for benchmark logging.
bigquery_uploader: Create flags for uploading results to BigQuery.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
if benchmark_log_dir:
flags.DEFINE_string(
name="benchmark_log_dir",
short_name="bld",
default=None,
help=help_wrap("The location of the benchmark logging."))
if bigquery_uploader:
flags.DEFINE_string(
name="gcp_project",
short_name="gp",
default=None,
help=help_wrap(
"The GCP project name where the benchmark will be uploaded."))
flags.DEFINE_string(
name="bigquery_data_set",
short_name="bds",
default="test_benchmark",
help=help_wrap(
"The Bigquery dataset name where the benchmark will be uploaded."
))
flags.DEFINE_string(
name="bigquery_run_table",
short_name="brt",
default="benchmark_run",
help=help_wrap("The Bigquery table name where the benchmark run "
"information will be uploaded."))
flags.DEFINE_string(
name="bigquery_metric_table",
short_name="bmt",
default="benchmark_metric",
help=help_wrap(
"The Bigquery table name where the benchmark metric "
"information will be uploaded."))
return key_flags
def define_image(data_format=True):
"""Register image specific flags.
Args:
data_format: Create a flag to specify image axis convention.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
if data_format:
flags.DEFINE_enum(
name="data_format",
short_name="df",
default=None,
enum_values=["channels_first", "channels_last"],
help=help_wrap(
"A flag to override the data format used in the model. "
"channels_first provides a performance boost on GPU but is not "
"always compatible with CPU. If left unspecified, the data format "
"will be chosen automatically based on whether TensorFlow was "
"built for CPU or GPU."))
key_flags.append("data_format")
return key_flags
def define_base(data_dir=True,
model_dir=True,
train_epochs=True,
epochs_between_evals=True,
stop_threshold=True,
batch_size=True,
multi_gpu=False,
num_gpu=True,
hooks=True,
export_dir=True):
"""Register base flags.
Args:
data_dir: Create a flag for specifying the input data directory.
model_dir: Create a flag for specifying the model file directory.
train_epochs: Create a flag to specify the number of training epochs.
epochs_between_evals: Create a flag to specify the frequency of testing.
stop_threshold: Create a flag to specify a threshold accuracy or other
eval metric which should trigger the end of training.
batch_size: Create a flag to specify the batch size.
multi_gpu: Create a flag to allow the use of all available GPUs.
num_gpu: Create a flag to specify the number of GPUs used.
hooks: Create a flag to specify hooks for logging.
export_dir: Create a flag to specify where a SavedModel should be exported.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
if data_dir:
flags.DEFINE_string(name="data_dir",
short_name="dd",
default="/tmp",
help=help_wrap("The location of the input data."))
key_flags.append("data_dir")
if model_dir:
flags.DEFINE_string(
name="model_dir",
short_name="md",
default="/tmp",
help=help_wrap("The location of the model checkpoint files."))
key_flags.append("model_dir")
if train_epochs:
flags.DEFINE_integer(
name="train_epochs",
short_name="te",
default=1,
help=help_wrap("The number of epochs used to train."))
key_flags.append("train_epochs")
if epochs_between_evals:
flags.DEFINE_integer(
name="epochs_between_evals",
short_name="ebe",
default=1,
help=help_wrap("The number of training epochs to run between "
"evaluations."))
key_flags.append("epochs_between_evals")
if stop_threshold:
flags.DEFINE_float(
name="stop_threshold",
short_name="st",
default=None,
help=help_wrap("If passed, training will stop at the earlier of "
"train_epochs and when the evaluation metric is "
"greater than or equal to stop_threshold."))
if batch_size:
flags.DEFINE_integer(
name="batch_size",
short_name="bs",
default=32,
help=help_wrap("Batch size for training and evaluation."))
key_flags.append("batch_size")
assert not (multi_gpu and num_gpu)
if multi_gpu:
flags.DEFINE_bool(
name="multi_gpu",
default=False,
help=help_wrap("If set, run across all available GPUs."))
key_flags.append("multi_gpu")
if num_gpu:
flags.DEFINE_integer(
name="num_gpus",
short_name="ng",
default=1 if tf.test.is_gpu_available() else 0,
help=help_wrap(
"How many GPUs to use with the DistributionStrategies API. The "
"default is 1 if TensorFlow can detect a GPU, and 0 otherwise."
))
if hooks:
# Construct a pretty summary of hooks.
hook_list_str = (u"\ufeff Hook:\n" + u"\n".join(
[u"\ufeff {}".format(key) for key in hooks_helper.HOOKS]))
flags.DEFINE_list(
name="hooks",
short_name="hk",
default="LoggingTensorHook",
help=help_wrap(
u"A list of (case insensitive) strings to specify the names of "
u"training hooks.\n{}\n\ufeff Example: `--hooks ProfilerHook,"
u"ExamplesPerSecondHook`\n See official.utils.logs.hooks_helper "
u"for details.".format(hook_list_str)))
key_flags.append("hooks")
if export_dir:
flags.DEFINE_string(
name="export_dir",
short_name="ed",
default=None,
help=help_wrap(
"If set, a SavedModel serialization of the model will "
"be exported to this directory at the end of training. "
"See the README for more details and relevant links."))
key_flags.append("export_dir")
return key_flags
def define_benchmark(benchmark_log_dir=True, bigquery_uploader=True):
"""Register benchmarking flags.
Args:
benchmark_log_dir: Create a flag to specify location for benchmark logging.
bigquery_uploader: Create flags for uploading results to BigQuery.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
flags.DEFINE_enum(
name="benchmark_logger_type", default="BaseBenchmarkLogger",
enum_values=["BaseBenchmarkLogger", "BenchmarkFileLogger",
"BenchmarkBigQueryLogger"],
help=help_wrap("The type of benchmark logger to use. Defaults to using "
"BaseBenchmarkLogger which logs to STDOUT. Different "
"loggers will require other flags to be able to work."))
flags.DEFINE_string(
name="benchmark_test_id", short_name="bti", default=None,
help=help_wrap("The unique test ID of the benchmark run. It could be the "
"combination of key parameters. It is hardware "
"independent and could be used compare the performance "
"between different test runs. This flag is designed for "
"human consumption, and does not have any impact within "
"the system."))
if benchmark_log_dir:
flags.DEFINE_string(
name="benchmark_log_dir", short_name="bld", default=None,
help=help_wrap("The location of the benchmark logging.")
)
if bigquery_uploader:
flags.DEFINE_string(
name="gcp_project", short_name="gp", default=None,
help=help_wrap(
"The GCP project name where the benchmark will be uploaded."))
flags.DEFINE_string(
name="bigquery_data_set", short_name="bds", default="test_benchmark",
help=help_wrap(
"The Bigquery dataset name where the benchmark will be uploaded."))
flags.DEFINE_string(
name="bigquery_run_table", short_name="brt", default="benchmark_run",
help=help_wrap("The Bigquery table name where the benchmark run "
"information will be uploaded."))
flags.DEFINE_string(
name="bigquery_run_status_table", short_name="brst",
default="benchmark_run_status",
help=help_wrap("The Bigquery table name where the benchmark run "
"status information will be uploaded."))
flags.DEFINE_string(
name="bigquery_metric_table", short_name="bmt",
default="benchmark_metric",
help=help_wrap("The Bigquery table name where the benchmark metric "
"information will be uploaded."))
@flags.multi_flags_validator(
["benchmark_logger_type", "benchmark_log_dir"],
message="--benchmark_logger_type=BenchmarkFileLogger will require "
"--benchmark_log_dir being set")
def _check_benchmark_log_dir(flags_dict):
benchmark_logger_type = flags_dict["benchmark_logger_type"]
if benchmark_logger_type == "BenchmarkFileLogger":
return flags_dict["benchmark_log_dir"]
return True
return key_flags
def define_base(data_dir=True,
model_dir=True,
clean=True,
train_epochs=True,
epochs_between_evals=True,
stop_threshold=True,
batch_size=True,
num_gpu=True,
hooks=True,
export_dir=True,
distribution_strategy=True):
"""Register base flags.
Args:
data_dir: Create a flag for specifying the input data directory.
model_dir: Create a flag for specifying the model file directory.
train_epochs: Create a flag to specify the number of training epochs.
epochs_between_evals: Create a flag to specify the frequency of testing.
stop_threshold: Create a flag to specify a threshold accuracy or other
eval metric which should trigger the end of training.
batch_size: Create a flag to specify the batch size.
num_gpu: Create a flag to specify the number of GPUs used.
hooks: Create a flag to specify hooks for logging.
export_dir: Create a flag to specify where a SavedModel should be exported.
distribution_strategy: Create a flag to specify which Distribution Strategy
to use.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
if data_dir:
flags.DEFINE_string(name="data_dir",
short_name="dd",
default="/tmp",
help=help_wrap("The location of the input data."))
key_flags.append("data_dir")
if model_dir:
flags.DEFINE_string(
name="model_dir",
short_name="md",
default="/tmp",
help=help_wrap("The location of the model checkpoint files."))
key_flags.append("model_dir")
if clean:
flags.DEFINE_boolean(
name="clean",
default=False,
help=help_wrap("If set, model_dir will be removed if it exists."))
key_flags.append("clean")
if train_epochs:
flags.DEFINE_integer(
name="train_epochs",
short_name="te",
default=1,
help=help_wrap("The number of epochs used to train."))
key_flags.append("train_epochs")
if epochs_between_evals:
flags.DEFINE_integer(
name="epochs_between_evals",
short_name="ebe",
default=1,
help=help_wrap("The number of training epochs to run between "
"evaluations."))
key_flags.append("epochs_between_evals")
if stop_threshold:
flags.DEFINE_float(
name="stop_threshold",
short_name="st",
default=None,
help=help_wrap("If passed, training will stop at the earlier of "
"train_epochs and when the evaluation metric is "
"greater than or equal to stop_threshold."))
if batch_size:
flags.DEFINE_integer(
name="batch_size",
short_name="bs",
default=32,
help=help_wrap(
"Batch size for training and evaluation. When using "
"multiple gpus, this is the global batch size for "
"all devices. For example, if the batch size is 32 "
"and there are 4 GPUs, each GPU will get 8 examples on "
"each step."))
key_flags.append("batch_size")
if export_dir:
flags.DEFINE_string(
name="export_dir",
short_name="ed",
default=None,
help=help_wrap(
"If set, a SavedModel serialization of the model will "
"be exported to this directory at the end of training. "
"See the README for more details and relevant links."))
key_flags.append("export_dir")
return key_flags
def define_performance(num_parallel_calls=True, inter_op=True, intra_op=True,
synthetic_data=True, max_train_steps=True, dtype=True):
"""Register flags for specifying performance tuning arguments.
Args:
num_parallel_calls: Create a flag to specify parallelism of data loading.
inter_op: Create a flag to allow specification of inter op threads.
intra_op: Create a flag to allow specification of intra op threads.
synthetic_data: Create a flag to allow the use of synthetic data.
max_train_steps: Create a flags to allow specification of maximum number
of training steps
dtype: Create flags for specifying dtype.
Returns:
A list of flags for core.py to marks as key flags.
"""
key_flags = []
if num_parallel_calls:
flags.DEFINE_integer(
name="num_parallel_calls", short_name="npc",
default=multiprocessing.cpu_count(),
help=help_wrap("The number of records that are processed in parallel "
"during input processing. This can be optimized per "
"data set but for generally homogeneous data sets, "
"should be approximately the number of available CPU "
"cores. (default behavior)"))
if inter_op:
flags.DEFINE_integer(
name="inter_op_parallelism_threads", short_name="inter", default=0,
help=help_wrap("Number of inter_op_parallelism_threads to use for CPU. "
"See TensorFlow config.proto for details.")
)
if intra_op:
flags.DEFINE_integer(
name="intra_op_parallelism_threads", short_name="intra", default=0,
help=help_wrap("Number of intra_op_parallelism_threads to use for CPU. "
"See TensorFlow config.proto for details."))
if synthetic_data:
flags.DEFINE_bool(
name="use_synthetic_data", short_name="synth", default=False,
help=help_wrap(
"If set, use fake data (zeroes) instead of a real dataset. "
"This mode is useful for performance debugging, as it removes "
"input processing steps, but will not learn anything."))
if max_train_steps:
flags.DEFINE_integer(
name="max_train_steps", short_name="mts", default=None, help=help_wrap(
"The model will stop training if the global_step reaches this "
"value. If not set, training will run until the specified number "
"of epochs have run as usual. It is generally recommended to set "
"--train_epochs=1 when using this flag."
))
if dtype:
flags.DEFINE_enum(
name="dtype", short_name="dt", default="fp32",
enum_values=DTYPE_MAP.keys(),
help=help_wrap("The TensorFlow datatype used for calculations. "
"Variables may be cast to a higher precision on a "
"case-by-case basis for numerical stability."))
flags.DEFINE_integer(
name="loss_scale", short_name="ls", default=None,
help=help_wrap(
"The amount to scale the loss by when the model is run. Before "
"gradients are computed, the loss is multiplied by the loss scale, "
"making all gradients loss_scale times larger. To adjust for this, "
"gradients are divided by the loss scale before being applied to "
"variables. This is mathematically equivalent to training without "
"a loss scale, but the loss scale helps avoid some intermediate "
"gradients from underflowing to zero. If not provided the default "
"for fp16 is 128 and 1 for all other dtypes."))
loss_scale_val_msg = "loss_scale should be a positive integer."
@flags.validator(flag_name="loss_scale", message=loss_scale_val_msg)
def _check_loss_scale(loss_scale): # pylint: disable=unused-variable
if loss_scale is None:
return True # null case is handled in get_loss_scale()
return loss_scale > 0
return key_flags