Infiniband Fat Trees

Overview Infiniband is primarily used in High Performance Computing (HPC) and provides a very fast network interconnect with an incredibly small latency. The interface card also implements Remote Direct Memory Access (RDMA) which allows the cards to place data directly into the memory of the end node so that no Kernel intervention is required. When …

HPC Re-Engineering

Overview We have been tasked with proposing how we would re-engineer an aging SGI High Performance Computing platform. The platform is a 35 Node cluster running Red Hat 6.7 on each node with a Lustre file system mount and a /home file system presented via NFS from a Hierarchical Storage Node. In addition to the …

LACP Implementation

Modern servers usually have multiple ethernet interfaces, and by combining them into an LACP trunk, you can pass VLAN’s over then to extend the amount of traffic over a bonded network link. Converting a Linux CENTOS server with 2 or more Ethernet interfaces to an LACP bonded network link couldn’t be simpler. The process is well documented …