ComputeResource - AWS Batch
ContentsSee Also

ComputeResource

An object that represents an AWS Batch compute resource. For more information, see Compute environments in the AWS Batch User Guide.

Contents

maxvCpus

The maximum number of vCPUs that a compute environment can support.

Note

With BEST_FIT_PROGRESSIVE,SPOT_CAPACITY_OPTIMIZED and SPOT_PRICE_CAPACITY_OPTIMIZED (recommended) strategies using On-Demand or Spot Instances, and the BEST_FIT strategy using Spot Instances, AWS Batch might need to exceed maxvCpus to meet your capacity requirements. In this event, AWS Batch never exceeds maxvCpus by more than a single instance.

Type: Integer

Required: Yes

subnets

The VPC subnets where the compute resources are launched. These subnets must be within the same VPC. Fargate compute resources can contain up to 16 subnets. For more information, see VPCs and subnets in the Amazon VPC User Guide.

Note

AWS Batch on Amazon EC2 and AWS Batch on Amazon EKS support Local Zones. For more information, see Local Zones in the Amazon EC2 User Guide for Linux Instances, Amazon EKS and AWS Local Zones in the Amazon EKS User Guide and Amazon ECS clusters in Local Zones, Wavelength Zones, and AWS Outposts in the Amazon ECS Developer Guide.

AWS Batch on Fargate doesn't currently support Local Zones.

Type: Array of strings

Required: Yes

type

The type of compute environment: EC2, SPOT, FARGATE, or FARGATE_SPOT. For more information, see Compute environments in the AWS Batch User Guide.

If you choose SPOT, you must also specify an Amazon EC2 Spot Fleet role with the spotIamFleetRole parameter. For more information, see Amazon EC2 spot fleet role in the AWS Batch User Guide.

Type: String

Valid Values: EC2 | SPOT | FARGATE | FARGATE_SPOT

Required: Yes

allocationStrategy

The allocation strategy to use for the compute resource if not enough instances of the best fitting instance type can be allocated. This might be because of availability of the instance type in the Region or Amazon EC2 service limits. For more information, see Allocation strategies in the AWS Batch User Guide.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

BEST_FIT (default)

AWS Batch selects an instance type that best fits the needs of the jobs with a preference for the lowest-cost instance type. If additional instances of the selected instance type aren't available, AWS Batch waits for the additional instances to be available. If there aren't enough instances available or the user is reaching Amazon EC2 service limits, additional jobs aren't run until the currently running jobs are completed. This allocation strategy keeps costs lower but can limit scaling. If you're using Spot Fleets with BEST_FIT, the Spot Fleet IAM Role must be specified. Compute resources that use a BEST_FIT allocation strategy don't support infrastructure updates and can't update some parameters. For more information, see Updating compute environments in the AWS Batch User Guide.

BEST_FIT_PROGRESSIVE

AWS Batch selects additional instance types that are large enough to meet the requirements of the jobs in the queue. Its preference is for instance types with lower cost vCPUs. If additional instances of the previously selected instance types aren't available, AWS Batch selects new instance types.

SPOT_CAPACITY_OPTIMIZED

AWS Batch selects one or more instance types that are large enough to meet the requirements of the jobs in the queue. Its preference is for instance types that are less likely to be interrupted. This allocation strategy is only available for Spot Instance compute resources.

SPOT_PRICE_CAPACITY_OPTIMIZED

The price and capacity optimized allocation strategy looks at both price and capacity to select the Spot Instance pools that are the least likely to be interrupted and have the lowest possible price. This allocation strategy is only available for Spot Instance compute resources.

With BEST_FIT_PROGRESSIVE,SPOT_CAPACITY_OPTIMIZED and SPOT_PRICE_CAPACITY_OPTIMIZED (recommended) strategies using On-Demand or Spot Instances, and the BEST_FIT strategy using Spot Instances, AWS Batch might need to exceed maxvCpus to meet your capacity requirements. In this event, AWS Batch never exceeds maxvCpus by more than a single instance.

Type: String

Valid Values: BEST_FIT | BEST_FIT_PROGRESSIVE | SPOT_CAPACITY_OPTIMIZED | SPOT_PRICE_CAPACITY_OPTIMIZED

Required: No

bidPercentage

The maximum percentage that a Spot Instance price can be when compared with the On-Demand price for that instance type before instances are launched. For example, if your maximum percentage is 20%, then the Spot price must be less than 20% of the current On-Demand price for that Amazon EC2 instance. You always pay the lowest (market) price and never more than your maximum percentage. If you leave this field empty, the default value is 100% of the On-Demand price. For most use cases, we recommend leaving this field empty.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: Integer

Required: No

desiredvCpus

The desired number of vCPUS in the compute environment. AWS Batch modifies this value between the minimum and maximum values based on job queue demand.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: Integer

Required: No

ec2Configuration

Provides information that's used to select Amazon Machine Images (AMIs) for Amazon EC2 instances in the compute environment. If Ec2Configuration isn't specified, the default is ECS_AL2.

One or two values can be provided.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: Array of Ec2Configuration objects

Required: No

ec2KeyPair

The Amazon EC2 key pair that's used for instances launched in the compute environment. You can use this key pair to log in to your instances with SSH.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: String

Required: No

imageId

This member has been deprecated.

The Amazon Machine Image (AMI) ID used for instances launched in the compute environment. This parameter is overridden by the imageIdOverride member of the Ec2Configuration structure.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Note

The AMI that you choose for a compute environment must match the architecture of the instance types that you intend to use for that compute environment. For example, if your compute environment uses A1 instance types, the compute resource AMI that you choose must support ARM instances. Amazon ECS vends both x86 and ARM versions of the Amazon ECS-optimized Amazon Linux 2 AMI. For more information, see Amazon ECS-optimized Amazon Linux 2 AMI in the Amazon Elastic Container Service Developer Guide.

Type: String

Required: No

instanceRole

The Amazon ECS instance profile applied to Amazon EC2 instances in a compute environment. This parameter is required for Amazon EC2 instances types. You can specify the short name or full Amazon Resource Name (ARN) of an instance profile. For example, ecsInstanceRole or arn:aws:iam::<aws_account_id>:instance-profile/ecsInstanceRole . For more information, see Amazon ECS instance role in the AWS Batch User Guide.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: String

Required: No

instanceTypes

The instances types that can be launched. You can specify instance families to launch any instance type within those families (for example, c5 or p3), or you can specify specific sizes within a family (such as c5.8xlarge). You can also choose optimal to select instance types (from the C4, M4, and R4 instance families) that match the demand of your job queues.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Note

When you create a compute environment, the instance types that you select for the compute environment must share the same architecture. For example, you can't mix x86 and ARM instances in the same compute environment.

Note

Currently, optimal uses instance types from the C4, M4, and R4 instance families. In Regions that don't have instance types from those instance families, instance types from the C5, M5, and R5 instance families are used.

Type: Array of strings

Required: No

launchTemplate

The launch template to use for your compute resources. Any other compute resource parameters that you specify in a CreateComputeEnvironment API operation override the same parameters in the launch template. You must specify either the launch template ID or launch template name in the request, but not both. For more information, see Launch template support in the AWS Batch User Guide.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: LaunchTemplateSpecification object

Required: No

minvCpus

The minimum number of vCPUs that a compute environment should maintain (even if the compute environment is DISABLED).

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: Integer

Required: No

placementGroup

The Amazon EC2 placement group to associate with your compute resources. If you intend to submit multi-node parallel jobs to your compute environment, you should consider creating a cluster placement group and associate it with your compute resources. This keeps your multi-node parallel job on a logical grouping of instances within a single Availability Zone with high network flow potential. For more information, see Placement groups in the Amazon EC2 User Guide for Linux Instances.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: String

Required: No

securityGroupIds

The Amazon EC2 security groups that are associated with instances launched in the compute environment. One or more security groups must be specified, either in securityGroupIds or using a launch template referenced in launchTemplate. This parameter is required for jobs that are running on Fargate resources and must contain at least one security group. Fargate doesn't support launch templates. If security groups are specified using both securityGroupIds and launchTemplate, the values in securityGroupIds are used.

Type: Array of strings

Required: No

spotIamFleetRole

The Amazon Resource Name (ARN) of the Amazon EC2 Spot Fleet IAM role applied to a SPOT compute environment. This role is required if the allocation strategy set to BEST_FIT or if the allocation strategy isn't specified. For more information, see Amazon EC2 spot fleet role in the AWS Batch User Guide.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Important

To tag your Spot Instances on creation, the Spot Fleet IAM role specified here must use the newer AmazonEC2SpotFleetTaggingRole managed policy. The previously recommended AmazonEC2SpotFleetRole managed policy doesn't have the required permissions to tag Spot Instances. For more information, see Spot instances not tagged on creation in the AWS Batch User Guide.

Type: String

Required: No

tags

Key-value pair tags to be applied to Amazon EC2 resources that are launched in the compute environment. For AWS Batch, these take the form of "String1": "String2", where String1 is the tag key and String2 is the tag value-for example, { "Name": "Batch Instance - C4OnDemand" }. This is helpful for recognizing your AWS Batch instances in the Amazon EC2 console. Updating these tags requires an infrastructure update to the compute environment. For more information, see Updating compute environments in the AWS Batch User Guide. These tags aren't seen when using the AWS Batch ListTagsForResource API operation.

Note

This parameter isn't applicable to jobs that are running on Fargate resources. Don't specify it.

Type: String to string map

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: