As part of the Cray CS cluster supercomputer series, Cray offers the CS-Storm cluster, an accelerator-optimized system that consists of multiple high-density multi-GPU server nodes, designed for massively parallel computing workloads. Each rack can hold up to 22 2U rackmount CS-Storm server nodes. Each of these servers integrates eight accelerators and two Intel Xeon processors, delivering 246 GPU teraflops of compute performance in one 48U rack. The system is available with a comprehensive HPC software stack including tools that are customizable to work with most open-source and commercial compilers, schedulers and libraries. The software stack includes Cray’s Advanced Cluster Engine (ACE) management software, which provides network, server, cluster and storage management capabilities with easy system administration and maintenance.