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Answer: Place nodes in a single subnet of a VPC. Configure a cluster placement group. Ensure that the latest Elastic Fabric Adapter (EFA) drivers are installed on the EC2 instances with a supported operating system.
For high performance computing (HPC) workloads requiring 10 Gbps flows and an aggregate throughput of up to 100 Gbps across many instances with low-latency communication, the optimal architecture solution involves using a cluster placement group within a single subnet of a VPC. This setup ensures that instances are placed close to each other within a single Availability Zone, minimizing latency and maximizing throughput. Additionally, installing the latest Elastic Fabric Adapter (EFA) drivers on the EC2 instances with a supported operating system is crucial for achieving the desired network performance. EFAs provide a high-performance, low-latency network interface that is specifically designed for HPC applications. Therefore, option A is the correct choice as it directly addresses the requirements for low-latency communication and high throughput by leveraging cluster placement groups and EFAs within a single subnet.
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Which architectural solution will best optimize a high-performance computing (HPC) workload requiring 10 Gbps flows per Amazon EC2 instance, an aggregate throughput of up to 100 Gbps across multiple instances, and low-latency communication?
A
Place nodes in a single subnet of a VPC. Configure a cluster placement group. Ensure that the latest Elastic Fabric Adapter (EFA) drivers are installed on the EC2 instances with a supported operating system.
B
Place nodes in multiple subnets in a single VPC. Configure a spread placement group. Ensure that the EC2 instances support Elastic Network Adapters (ENAs) and that the drivers are updated on each instance operating system.
C
Place nodes in multiple VPCs Use AWS Transit Gateway to route traffic between the VPCs. Ensure that the latest Elastic Fabric Adapter (EFA) drivers are installed on the EC2 instances with a supported operating system.
D
Place nodes in multiple subnets in multiple Availability Zones. Configure a cluster placement group. Ensure that the EC2 instances support Elastic Network Adapters (ENAs) and that the drivers are updated on each instance operating system.