Identify EFA-enabled EC2 instances - AWS PCS

Identify EFA-enabled EC2 instances

To use EFA, all instance types that are allowed for an AWS PCS compute group must support EFA, and must have the same number of vCPUs (and GPUs if appropriate). For a list of EFA-enabled instances, see Elastic Fabric Adapter for HPC and ML workloads on Amazon EC2 in the Amazon Elastic Compute Cloud User Guide. You can also use the AWS CLI to view a list of instance types that support EFA. Replace region-code with the AWS Region where you use AWS PCS, such as us-east-1.

aws ec2 describe-instance-types \ 
   --region region-code \ 
   --filters Name=network-info.efa-supported,Values=true \ 
   --query "InstanceTypes[*].[InstanceType]" \
   --output text | sort
Note

Determine how many network interfaces are available – Some EC2 instances have multiple network cards. This allows them to have multiple EFAs. For more information, see Multiple network interfaces in AWS PCS.