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NOTE: This system was “defunded” August 31 2017. Please visit the Migration Process page for more information.
NOTE: This system was “defunded” August 31, 2017. Please visit the Migration Process page for more information.
Along with a login node and other machines for job management and file serving, the main part of the Lattice cluster consists of multicore compute nodes.
The Lattice cluster is comprised of 512 8-core nodes, each having 2 sockets. Each socket has an Intel Xeon L5520 (Nehalem) quad-core processor, running at 2.27 GHz. The 8 cores associated with one of the individual nodes share 12 GB of RAM.
As mentioned in the introduction, the Lattice cluster is intended for multi-node jobs that make use of the low-latency interconnect. Lattice uses an InfiniBand 4X QDR (Quad Data Rate) 40 Gbit/s switched fabric, with a two to one blocking factor (to reduce purchase costs).