# Endpoints and service quotas for AWS PCS
<a name="service-endpoints-quotas"></a>

The following sections describe the endpoints and service quotas for AWS Parallel Computing Service (AWS PCS). Service quotas, formerly referred to as *limits*, are the maximum number of service resources or operations for your AWS account.

Your AWS account has default quotas for each AWS service. Unless otherwise noted, each quota is Region-specific. You can request increases for some quotas, and other quotas cannot be increased.

For more information, see [AWS service quotas](https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html) in the *AWS General Reference*.

**Contents**
+ [Service endpoints](#service-endpoints-quotas_endpoints)
+ [Service quotas](#service-endpoints-quotas_quotas)
  + [Internal quotas](#service-endpoints-quotas_internal)
  + [Relevant quotas for other AWS services](#service-endpoints-quotas_other)

## Service endpoints
<a name="service-endpoints-quotas_endpoints"></a>


| Region name | Region | Endpoint | Protocol | 
| --- | --- | --- | --- | 
| US East (Ohio) | us-east-2 | pcs.us-east-2.amazonaws.com<br />pcs-fips.us-east-2.amazonaws.com<br />pcs-fips.us-east-2.api.aws<br />pcs.us-east-2.api.aws | HTTPS | 
| US East (N. Virginia) | us-east-1 | pcs.us-east-1.amazonaws.com<br />pcs-fips.us-east-1.amazonaws.com<br />pcs-fips.us-east-1.api.aws<br />pcs.us-east-1.api.aws | HTTPS | 
| US West (Oregon) | us-west-2 | pcs.us-west-2.amazonaws.com<br />pcs-fips.us-west-2.amazonaws.com<br />pcs-fips.us-west-2.api.aws<br />pcs.us-west-2.api.aws | HTTPS | 
| Asia Pacific (Mumbai) | ap-south-1 | pcs.ap-south-1.amazonaws.com<br />pcs.ap-south-1.api.aws | HTTPS | 
| Asia Pacific (Singapore) | ap-southeast-1 | pcs.ap-southeast-1.amazonaws.com<br />pcs.ap-southeast-1.api.aws | HTTPS | 
| Asia Pacific (Sydney) | ap-southeast-2 | pcs.ap-southeast-2.amazonaws.com<br />pcs.ap-southeast-2.api.aws | HTTPS | 
| Asia Pacific (Tokyo) | ap-northeast-1 | pcs.ap-northeast-1.amazonaws.com<br />pcs.ap-northeast-1.api.aws | HTTPS | 
| Asia Pacific (Osaka) | ap-northeast-3 | pcs.ap-northeast-3.amazonaws.com<br />pcs.ap-northeast-3.api.aws | HTTPS | 
| Europe (Frankfurt) | eu-central-1 | pcs.eu-central-1.amazonaws.com<br />pcs.eu-central-1.api.aws | HTTPS | 
| Europe (Ireland) | eu-west-1 | pcs.eu-west-1.amazonaws.com<br />pcs.eu-west-1.api.aws | HTTPS | 
| Europe (London) | eu-west-2 | pcs.eu-west-2.amazonaws.com<br />pcs.eu-west-2.api.aws | HTTPS | 
| Europe (Paris) | eu-west-3 | pcs.eu-west-3.amazonaws.com<br />pcs-eu-west-3.api.aws | HTTPS | 
| Europe (Milan) | eu-south-1 | pcs.eu-south-1.amazonaws.com<br />pcs-eu-south-1.api.aws | HTTPS | 
| Europe (Spain) | eu-south-2 | pcs.eu-south-2.amazonaws.com<br />pcs-eu-south-2.api.aws | HTTPS | 
| Europe (Stockholm) | eu-north-1 | pcs.eu-north-1.amazonaws.com<br />pcs.eu-north-1.api.aws | HTTPS | 
| South America (São Paulo) | sa-east-1 | pcs.sa-east-1.amazonaws.com<br />pcs.sa-east-1.api.aws | HTTPS | 
| AWS GovCloud (US-East) | us-gov-east-1 | pcs.us-gov-east-1.amazonaws.com<br />pcs-fips.us-gov-east-1.amazonaws.com<br />pcs-fips.us-gov-east-1.api.aws<br />pcs.us-gov-east-1.api.aws | HTTPS | 
| AWS GovCloud (US-West) | us-gov-west-1 | pcs.us-gov-west-1.amazonaws.com<br />pcs-fips.us-gov-west-1.amazonaws.com<br />pcs-fips.us-gov-west-1.api.aws<br />pcs.us-gov-west-1.api.aws | HTTPS | 

## Service quotas
<a name="service-endpoints-quotas_quotas"></a>


|  **Name**  |  **Default**  |  **Adjustable**  |  **Description**  | 
| --- | --- | --- | --- | 
| Clusters | 5 | Yes | The maximum number of clusters per AWS Region. | 

**Note**  
The default values are the initial quotas set by AWS. These default values are separate from the actual applied quota values and maximum possible service quotas. For more information, see [Terminology in Service Quotas](https://docs.aws.amazon.com/servicequotas/latest/userguide/intro.html#intro_getting-started) in the *Service Quotas User Guide*.

These service quotas are listed under **AWS Parallel Computing Service (PCS)** in the [AWS Management Console](https://console.aws.amazon.com/servicequotas/home/services). To request a quota increase for values that are shown as adjustable, see [Requesting a Quota Increase](https://docs.aws.amazon.com/servicequotas/latest/userguide/request-quota-increase.html) in the *Service Quotas User Guide*.

**Important**  
Remember to check the current AWS Region setting in the AWS Management Console.

### Internal quotas
<a name="service-endpoints-quotas_internal"></a>

The following quotas are internal and non-adjustable.


|  **Name**  |  **Default**  |  **Adjustable**  |  **Description**  | 
| --- | --- | --- | --- | 
| Concurrent cluster creation | 1 | No | The maximum number of clusters in the `Creating` state per AWS Region. | 
| Compute node groups per cluster | 10 | No | The maximum number of compute node groups per cluster. | 
| Queues per cluster | 10 | No | The maximum number of queues per cluster. | 

### Relevant quotas for other AWS services
<a name="service-endpoints-quotas_other"></a>

AWS PCS uses other AWS services. Your service quotas for those services impact your use of AWS PCS.

**Amazon EC2 service quotas that impact AWS PCS**
+ Spot instance requests
+ Running on-demand instances
+ Launch templates
+ Launch template versions
+ Amazon EC2 API requests

For more information, see [Amazon EC2 service quotas](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-resource-limits.html) in the *Amazon Elastic Compute Cloud User Guide*.