Support strategic use of CISL resources

The CISL production supercomputing environment supports special computational campaigns for ongoing and short-term computational projects, all via a priority-based and near-real-time job scheduling mechanism. These campaigns are managed to minimize the impact on the production computing delivered to NCAR, university, and CSL scientists.

This table lists the special computational campaigns supported by CISL during FY2016.

FY2016 Special Campaign

Project Lead



Aerosols in Shallow Tropical Convection: Impact on Cloud Microphysics and Precipitation

A. Nugent



ORACLES Campaign

M. Barth



Research and Development of the National Water Model Using the Community WRF-Hydro Modeling System

D. Gochis



Advanced study of wind gusts in hurricanes using large-eddy simulation

G. Bryan



North American Multi-Model Ensemble (NMME) Phase II seasonal system

J. Tribbia



2016 STEP Hydromet Project Year 3

J. Sun



Real-time high-resolution ensemble analyses and forecasts of high-impact weather with NCAR’s DART facility and WRF model

G. Romine



Among these projects, the STEP Hydromet real-time experiment, a collaborative effort among the MMM, RAL, and EOL labs at NCAR, was conducted during the summer months in the Front Range hydromet testbed. The experiment started in the summer of 2014, repeated in 2015, and was conducted again in summer 2016 with an expanded scope. The main objective of the 2016 experiment was to demonstrate and test the end-to-end integrated hydrometeorological system developed by the STEP scientists. The end-to-end system involves analysis of high-resolution observations, data assimilation using WRFDA, new model-based nowcasting system VDRAS, qualitative precipitation forecasting (QPF) with WRF, and the coupled hydrological model WRF-Hydro.

Special computing campaigns
Yellowstone core hours dedicated to special computational campaigns during FY2016. CISL works to accelerate scientific discovery through numerical simulation by providing a portion of its HPC systems to special campaigns.

With the upcoming arrival of the Cheyenne cluster in 2017, NCAR is once again preparing to support its Accelerated Scientific Discovery (ASD) initiative, which provides large-scale computational resources to a small number of projects for a short period following acceptance of a new HPC system. In support of NCAR’s supercomputing strategy, the ASD program offers researchers a unique opportunity to quickly complete large-scale experiments that can lead to scientific breakthroughs of value to the entire community. These large projects also test the capability of the new system and help system administrators ensure that the supercomputer runs reliably at scale and under high utilization. ASD project allocations are balanced between university researchers and NCAR scientists, and proposed ASD projects were reviewed and recommended at the end of FY2016.

These special computing campaigns serve CISL’s computing imperative to provide on-demand and real-time services support for hardware cyberinfrastructure. This work is made possible through NSF Core funds, including CSL funding.