# PlacementSpecification
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Specifies how instances should be placed on a specific UltraServer.

## Contents
<a name="API_PlacementSpecification_Contents"></a>

 ** InstanceCount **   <a name="sagemaker-Type-PlacementSpecification-InstanceCount"></a>
The number of ML compute instances required to be placed together on the same UltraServer. Minimum value of 1.  
Type: Integer  
Valid Range: Minimum value of 0.  
Required: Yes

 ** UltraServerId **   <a name="sagemaker-Type-PlacementSpecification-UltraServerId"></a>
The unique identifier of the UltraServer where instances should be placed.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/sagemaker-2017-07-24/PlacementSpecification) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/PlacementSpecification) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/PlacementSpecification)