Elastic Fabric Adapter (EFA) is now compatible with Intel® MPI Library 2019 Update 6. Intel® MPI Library is a multi-fabric message passing library that implements the Message Passing Interface (MPI). Customers can use the library to create, maintain, and test applications that perform better on HPC clusters based on Intel® processors.

from Recent Announcements: https://aws.amazon.com/about-aws/whats-new/2019/11/elastic-fabric-adapter-now-compatible-with-intel-mpi-library/