A. Create a VPC with one subnet in a single Availability Zone. Keep the size of the subnet equal to the number of instances required in the cluster. Launch instances for the cluster in this small subnet to guarantee low-latency network performance.
B. Create a placement group. Choose an EC2 instance type compatible with placement groups for the cluster. Launch instances for the cluster in the placement group.
C. Launch Amazon EC2 instances with the largest available number of cores and RAM. Attach all instances to an Amazon EBS PIOPS volume. Implement a shared memory system across all instances in the cluster, using this shared EBS volume to minimize latency of communication.
D. Choose an EC2 instance type that offers enhanced networking. Attach a 10-Gbps non-blocking elastic network interface to the instances. Configure the elastic network interface to optimize network performance to reduce latency.