Today, Amazon Web Services announces that Amazon Elastic Compute Cloud (Amazon EC2) Capacity Blocks for ML now supports P5 instances in the US East (N. Virginia) Region and P4d instances in the US East (Ohio) and US West (Oregon) Regions. You can use EC2 Capacity Blocks to reserve highly sought-after GPU instances in Amazon EC2 UltraClusters for a future date for the amount of time that you need to run your machine learning (ML) workloads.
Source:: Amazon AWS