Scientific Computing Seminar

Date:
Friday, September 23, 2005
Time:
1:00pm-2:00pm
Location:
50A-5132
Seminar Speaker:
Forrest Hoffman
Oak Ridge National Laboratory
http://climate.ornl.gov/~forrest/
Title:
Climate and Carbon Software Engineering and Research on High End Computers
Abstract:
Discussed in this presentation will be software engineering work on the Community Land Model (CLM) and the Community Climate System Model (CCSM) to support cache-friendly blocking, code vectorization, and biogeochemistry experiments. Early results from inclusion of the UC Berkeley CASA' terrestrial biogeochemistry model within the CLM for use in Coupled Climate/Carbon Cycle Model Intercomparison Project (C4MIP) Phase 1 experiments will be presented along with a plan for performing intercomparisons to define the processes necessary for the biogeochemistry model to be included in a future Community Earth System Model. In addition, the direction of the National Leadership Computing Facility (NLCF) at ORNL will be discussed, and benchmark results from the CLM, the Community Atmosphere Model (CAM), and the CCSM on NLCF systems will be presented. Finally, results from diverse studies in cluster computing, ecoregionalization, network analysis for the AmeriFlux Network, detection of animal dispersal corridors, and remote sensing of geophysical disturbances will be reviewed.

Forrest Hoffman is a researcher of the Computer Science & Mathematics Division, and Environmental Sciences Division at Oak Ridge National Lab. Forrest performs computational science research in a number of global climate, environmental, and carbon research projects using Linux-based cluster computers as well as the high end computers at the National Leadership Computing Facility (NLCF) at ORNL. Forrest and colleagues built the first Beowulf-style cluster computer at ORNL, called the Stone SouperComputer, in 1996 to support large-scale cluster analysis for ecoregionalization. Since that time, he has continued to design and implement cluster computers and modeling software for a variety of environmental and climate applications. Forrest is also a contributing editor and columnist "Extreme Linux" for "Linux Magazine".

Sponsor of Seminar:
Helen He
Scientific Computing

Contact Esmond G. Ng EGNg@lbl.gov