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management easier. Figure 1 shows the components of two fully loaded racks using 64x Dell EMC PowerEdge C6420 rack server
chassis as a compute subsystem, Dell EMC PowerEdge R940 as a fat node, Dell EMC PowerEdge C4130 as an accelerator node, Dell
EMC Ready Bundle for HPC NFS Storage, Dell EMC Ready Bundle for HPC Lustre Storage and Intel
®
OPA as the cluster’s high speed
interconnect.
Compute and Management Components
There are several considerations when selecting the servers for master node, login node, compute node, fat node and accelerator
node. For master node, 1U form factor Dell EMC PowerEdge R440 is recommended. The master node is responsible for managing the
compute nodes and optimizing the overall compute capacity. The login node (Dell EMC PowerEdge R640 is recommended) is used for
user access, compilations and job submissions. Usually, master and login nodes are the only nodes that communicate with the outside
world, and they act as a middle point between the actual cluster and the outside network. For this reason, high availability can be
provided for master and login nodes. An example solution is illustrated in Figure 1, and the high-speed interconnect is configured to 2:1
blocking fat tree topology with Intel
®
OPA fabric.
Figure 1 Dell EMC Ready Bundle for HPC Life Sciences with Intel
®
OPA fabric