AMD has scored yet another design win for usage of its high-performance EPYC processors in the Cray Shasta supercomputer. The Cray Shasta will be deployed in the US Navy's Department of Defense Supercomputing Resource Center (DSRC) as part of the High Performance Computing Modernization Program. The peak theoretical computing capability of 12.8 PetaFLOPS, or 12.8 quadrillion floating point operations per second supercomputer will be built with 290,304 AMD EPYC (Rome) processor cores and 112 NVIDIA Volta V100 General-Purpose Graphics Processing Units (GPGPUs). The system will also feature 590 total terabytes (TB) of memory and 14 petabytes (PB) of usable storage, including 1 PB of NVMe-based solid state storage. Cray's Slingshot network will make sure all those components talk to each other at a rate of 200 Gigabits per second.Navy DSRC supercomputers support climate, weather, and ocean modeling by NMOC, which assists U.S. Navy meteorologists and oceanographers in predicting environmental conditions that may affect the Navy fleet. Among other scientific endeavors, the new supercomputer will be used to enhance weather forecasting models; ultimately, this improves the accuracy of hurricane intensity and track forecasts. The system is expected to be online by early fiscal year 2021.