Amazon EC2 Hpc8a Instances powered by 5th Gen AMD EPYC processors are now available | Amazon Web Services

Amazon EC2 Hpc8a instances are now generally available for tightly coupled, compute-intensive HPC workloads. Powered by 5th Gen AMD EPYC processors reaching 4.5 GHz, they provide up to 40% more performance, 42% higher memory bandwidth, and 25% better price-performance than Hpc7a instances. AWS targets applications such as fluid dynamics, weather modeling, design simulations, and crash analysis.

Instance Specifications

• Available in a single 96xlarge configuration:
  • 192 CPU cores
  • 768 GiB memory
  • 300 Gbps Elastic Fabric Adapter (EFA) networking
• Uses a 1:4 core-to-memory ratio.
• Customers can customize the number of cores at launch to better match workload requirements.
• Simultaneous Multithreading (SMT) is disabled to maximize HPC performance.
• Sixth-generation AWS Nitro cards handle virtualization, storage, and networking tasks separately from the CPUs.

Supported HPC Services

• Integrates with AWS ParallelCluster and AWS Parallel Computing Service (AWS PCS) for cluster creation and job submission.
• Supports Amazon FSx for Lustre, offering sub-millisecond latency and throughput of up to hundreds of gigabytes per second.
• High-bandwidth, low-latency networking is designed for workloads requiring extensive communication between compute nodes.

Availability and Purchasing

• Initially available in:
  • US East (Ohio)
  • Europe (Stockholm)
• Offered through On-Demand Instances and Savings Plans.
• Regional availability and future expansion can be checked through AWS Capabilities by Region.

Hpc8a instances are best suited for organizations needing faster simulation results and efficient scaling across tightly coupled HPC workloads. Teams can launch them through the Amazon EC2 console and combine them with AWS cluster and storage services for a complete HPC environment.