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A NERSC INCITE projectBridging the Gap between Climate and Weather
The distinction between climate and weather was expressed most succinctly by science fiction writer Robert A. Heinlein: “Climate is what you expect; weather is what you get.” But as global warming produces more noticeable changes on a planetary scale, how do we even know what to expect in a particular region? [MORE] |
News
April 2009 Newsletter
In March and April NERSC increased the I/O capabilities of Franklin, added 110 terabytes of storage to the NERSC Global Filesystem, and made upgrades to NERSC's SSH software to improve security and increase the performance of data transfers.
A network performance monitoring tool called PerfSONAR is being used to accelerate big geographically distributed science collabortations such as experiments at the Large Hadron Collider at CERN in Switzerland and the Daya Bay Neutrino Experiment in Southern China. [MORE]
NERSC Seeks Systems Department Head
The NERSC Systems Department Head is responsible for the introduction, integration and support of innovative technologies for high performance computing. [MORE]
Now Computing
A small sample of computations taking place on NERSC supercomputers right now.
| Project | Machine | Processor Cores |
|---|---|---|
| Interaction of Turbulence and Chemistry in Lean Premixed Laboratory Flames | Franklin | 2,544 |
| Theoretical Studies of the Electronic Structures and Properties of Complex Ceramic Crystals and Novel\tMaterials | Franklin | 1,024 |
| Computational Atomic Physics for Fusion Energy | Franklin | 1,024 |
| Exploration of Hadron Structure using Lattice QCD | Franklin | 1,024 |
| Lattice Gauge Theory Simulations | Bassi | 96 |
| Computational Resources for the Nanomaterials Theory Institute at the Center for Nanophase Materials\t Sciences | Jacquard | 20 |
Science @NERSC
A Perfect Sandwich
Scientists discover why the right amount of moisture in the membrane plays a key role in fuel cell efficiency
The art of sandwich making may be far removed from the science and technology of hydrogen fuel cells, but in both cases, the amount of moisture in the sandwich is important. In a polymer electrolyte membrane (PEM) fuel cell, the electrolyte membrane is sandwiched between an anode (negative electrode) and a cathode (positive electrode). After the catalyst in the anode splits the hydrogen fuel into protons and electrons, the PEM transports the protons to the cathode, allowing the separated electrons to flow along an external circuit as an electric current. But the PEM needs the right amount of moisture for efficient proton transport — with too much or too little water, power output will drop.
[Article]
