High Performance Computing

Remote Direct Memory Access (RDMA) cluster networks are groups of high performance computing (HPC), GPU, or optimized instances that are connected with a high-bandwidth, ultra low-latency network. Each node in the cluster is a bare metal machine located in close physical proximity to the other nodes. A remote direct memory access (RDMA) network between nodes provides latency as low as single-digit microseconds, comparable to on-premises HPC clusters.

Cluster networks are designed for highly demanding parallel computing workloads. For example:

• Computational fluid dynamics simulations for automotive or aerospace modeling
• Financial modeling and risk analysis
• Biomedical simulations
• Trajectory analysis and design for space exploration
• Artificial intelligence and big data workloads

Oracle Cloud Infrastructure offers two types of cluster networks. In both cases, the networks are groups of bare metal instances that are connected with an ultra low latency network.

• Cluster networks with instance pools let you use instance pools to manage groups of identical instances in the RDMA network group. If you want predictable capacity for a specific number of identical instances that are managed as a group, use cluster networks with instance pools.
• Compute clusters let you manage instances in the cluster individually. When you create a compute cluster, you create an empty RDMA network group. After the group is created, you can add instances to the group, or delete instances from the group. If you want to manage instances in the RDMA network independently of each other or use different types of instances in the network group, use compute clusters.