Category Archives: GCM

Perils of GPU Math For Scientific Computing

Just as Climate Models get ported to GPUs, and just as NVIDIA starts to dominate High Performance Computing with their GPUs and CUDA language, just then, we find out NVIDIA’s newest chips of math that sometimes is wrong and not consistently repeatable. Oh Dear. Continue reading

Posted in AGW Science and Background, GCM, News Related, Tech Bits | Tagged , , , , | 25 Comments

Weather Without Mountains Averaged Gives Climate Without Reality

How can you get model weather right if you can not model wind / mountain interactions? If you can not model weather right, how can you get climate (as an average of weather) right? Older models clearly are not fine grid enough. Current models likely inadequate also. Continue reading

Posted in AGW Science and Background, GCM | Tagged , , , , | 24 Comments

Kurtosis, Mpemba, Temperature and History

Does hot water freeze faster than cold water? It depends on the history of the water… Is there a fat tailed distribution of non-temperature states (such as spin of the particles) due to kurtosis in the process, or not? Continue reading

Posted in Earth Sciences, GCM, Global Warming General, Science Bits | Tagged , , , , | 12 Comments

Interesting Discussion on Models

Evaluating Models and how to describe the Earth in math, as a problem set. Some musings. Continue reading

Posted in GCM | Tagged , , , | 30 Comments