Class HyperbandStrategyConfig
- All Implemented Interfaces:
Serializable
,SdkPojo
,ToCopyableBuilder<HyperbandStrategyConfig.Builder,
HyperbandStrategyConfig>
The configuration for Hyperband
, a multi-fidelity based hyperparameter tuning strategy.
Hyperband
uses the final and intermediate results of a training job to dynamically allocate resources to
utilized hyperparameter configurations while automatically stopping under-performing configurations. This parameter
should be provided only if Hyperband
is selected as the StrategyConfig
under the
HyperParameterTuningJobConfig
API.
- See Also:
-
Nested Class Summary
-
Method Summary
Modifier and TypeMethodDescriptionbuilder()
final boolean
final boolean
equalsBySdkFields
(Object obj) Indicates whether some other object is "equal to" this one by SDK fields.final <T> Optional
<T> getValueForField
(String fieldName, Class<T> clazz) final int
hashCode()
final Integer
The maximum number of resources (such as epochs) that can be used by a training job launched by a hyperparameter tuning job.final Integer
The minimum number of resources (such as epochs) that can be used by a training job launched by a hyperparameter tuning job.static Class
<? extends HyperbandStrategyConfig.Builder> Take this object and create a builder that contains all of the current property values of this object.final String
toString()
Returns a string representation of this object.Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder
copy
-
Method Details
-
minResource
The minimum number of resources (such as epochs) that can be used by a training job launched by a hyperparameter tuning job. If the value for
MinResource
has not been reached, the training job is not stopped byHyperband
.- Returns:
- The minimum number of resources (such as epochs) that can be used by a training job launched by a
hyperparameter tuning job. If the value for
MinResource
has not been reached, the training job is not stopped byHyperband
.
-
maxResource
The maximum number of resources (such as epochs) that can be used by a training job launched by a hyperparameter tuning job. Once a job reaches the
MaxResource
value, it is stopped. If a value forMaxResource
is not provided, andHyperband
is selected as the hyperparameter tuning strategy,HyperbandTraining
attempts to inferMaxResource
from the following keys (if present) in StaticsHyperParameters:-
epochs
-
numepochs
-
n-epochs
-
n_epochs
-
num_epochs
If
HyperbandStrategyConfig
is unable to infer a value forMaxResource
, it generates a validation error. The maximum value is 20,000 epochs. All metrics that correspond to an objective metric are used to derive early stopping decisions. For distributed training jobs, ensure that duplicate metrics are not printed in the logs across the individual nodes in a training job. If multiple nodes are publishing duplicate or incorrect metrics, training jobs may make an incorrect stopping decision and stop the job prematurely.- Returns:
- The maximum number of resources (such as epochs) that can be used by a training job launched by a
hyperparameter tuning job. Once a job reaches the
MaxResource
value, it is stopped. If a value forMaxResource
is not provided, andHyperband
is selected as the hyperparameter tuning strategy,HyperbandTraining
attempts to inferMaxResource
from the following keys (if present) in StaticsHyperParameters:-
epochs
-
numepochs
-
n-epochs
-
n_epochs
-
num_epochs
If
HyperbandStrategyConfig
is unable to infer a value forMaxResource
, it generates a validation error. The maximum value is 20,000 epochs. All metrics that correspond to an objective metric are used to derive early stopping decisions. For distributed training jobs, ensure that duplicate metrics are not printed in the logs across the individual nodes in a training job. If multiple nodes are publishing duplicate or incorrect metrics, training jobs may make an incorrect stopping decision and stop the job prematurely. -
-
-
toBuilder
Description copied from interface:ToCopyableBuilder
Take this object and create a builder that contains all of the current property values of this object.- Specified by:
toBuilder
in interfaceToCopyableBuilder<HyperbandStrategyConfig.Builder,
HyperbandStrategyConfig> - Returns:
- a builder for type T
-
builder
-
serializableBuilderClass
-
hashCode
public final int hashCode() -
equals
-
equalsBySdkFields
Description copied from interface:SdkPojo
Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in anSdkPojo
class, and is generated based on a service model.If an
SdkPojo
class does not have any inherited fields,equalsBySdkFields
andequals
are essentially the same.- Specified by:
equalsBySdkFields
in interfaceSdkPojo
- Parameters:
obj
- the object to be compared with- Returns:
- true if the other object equals to this object by sdk fields, false otherwise.
-
toString
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value. -
getValueForField
-
sdkFields
-