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tf.estimator.SecondOrStepTimer

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Timer that triggers at most once every N seconds or once every N steps.

This symbol is also exported to v2 in tf.estimator namespace. See https://github.com/tensorflow/estimator/blob/master/tensorflow_estimator/python/estimator/hooks/basic_session_run_hooks.py

Methods

last_triggered_step

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Returns the last triggered time step or None if never triggered.

reset

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Resets the timer.

should_trigger_for_step

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Return true if the timer should trigger for the specified step.

Args
step Training step to trigger on.

Returns
True if the difference between the current time and the time of the last trigger exceeds every_secs, or if the difference between the current step and the last triggered step exceeds every_steps. False otherwise.

update_last_triggered_step

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Update the last triggered time and step number.

Args
step The current step.

Returns
A pair (elapsed_time, elapsed_steps), where elapsed_time is the number of seconds between the current trigger and the last one (a float), and elapsed_steps is the number of steps between the current trigger and the last one. Both values will be set to None on the first trigger.