System Overview -- RAAD2
Our flagship system, named "raad2" is a Cray XC40 with 4,128 Intel Xeon Haswell cores. Put into production in early 2017, it has 172 compute nodes with an aggregate peak performance of 120+ TFLOPS(Linpack). The system uses the proprietary Aries dragonfly interconnect. Each compute node contains 2 sockets with 12 physical cores per processor chip -- giving a total of 24 cores per node, along with 128GB of RAM.
The Cray is served by a Lustre (DDN EXAScaler) shared storage system with a usable capacity of 800TB, and a filesystem peak aggregate read bandwidth of about 16GB/s. Peak client bandwidth can reach 2.5GB/s for reads concurrently with 2.5GB/s for writes.
Raad2 uses SLURM as its workload manager to allocate and manage compute resources.