Environmental Modeling and Visualization Lab (EMVL) Computational Resources
The main server that provides high-end scientific computing resource for Vis/HPC projects and models is the HPC system Sol. Sol is an IBM iDataPlex cluster combining 2.79 GHz Intel Xeon 5550 (Nehalem) quad core processors and 2.6 GHz Intel Xeon E5-2670 (Sandy Bridge) eight core processors. The system is configured as a cluster consisting of four storage nodes, one management node, six login nodes and 192 compute nodes and 1,792 compute cores, approximately 10 TB of memory, and 685 TB of usable disk space. The nodes are connected via either a quad data rate (QDR) InfiniBand or a fourteen data rate (FDR) InfiniBand network. An archival storage system provides near-line tape access to an additional 11PB of data.
Sol is shared by scientists in the Office of Research and Development (ORD) and the Office of Air and Radiation (OAR). The primary applications are atmospheric modeling, computational fluid dynamics, computational chemistry, and statistical modeling. ORD projects are allocated time on the HPC system following an annual review process. Allocations for ORD and OAR projects total about 13 million CPU hours for FY 2015.
Data Management Resources
Archival storage management at EMVL is provided by three Sun X4600 servers providing high-capacity tape drives, more disk for staging files to and from tape, and greater bandwidth. This system is backed by a complex of Storage Tek (STK) tape silos that provide near-line access to nearly 9 Petabytes (PB) of data. To ensure high availability, the archival server consists of two primary nodes at the National Computer Center (NCC).
- Three Sun X4600 File Servers
- One Sun J4400 disk subsystem with 20 TB disk
- Two Sun 2540 disk subsystems with 72 TB disk
- Archival Storage Management (ASM) system, with 11,000 tapes in production
Sophisticated visualization hardware and software support high-end, R&D visualization computing, providing the ideal technology for projects such as modeling the human respiratory system or wind flow through an urban landscape. These visualizations can be converted to animations for display or graphics suitable for publishing.