EFA vs ENA vs ENI vs ParallelCluster

ENA

  • EC2 provides enhanced networking capabilities through the Elastic Network Adapter (ENA).

EFA

  • Elastic Network Adapter (ENA) with added capabilities, such as an additional OS-bypass functionality (OS-bypass is not supported on Windows instances).

  • Doesn't support t2 or t3 instance types.

ENI

  • An elastic network interface is a logical networking component in a VPC that represents a virtual network card.

ParallelCluster

  • An AWS supported open source cluster management tool that helps you to deploy and manage high performance computing (HPC) clusters in AWS.

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