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Send message Joined: 15 May 09 Posts: 4475 Credit: 18,448,326 RAC: 22,385 |
You may not need to go to the trouble of setting this up because I'm working on an updated Linux version of weather at home, which we'll use as the code for the windows version. That would be really good. As I remember, the logic behind making WAH Windows only was having models be single platform improved consistency across batches. Will there be testing to check that all other things being equal the results from a given task will be the same whichever platform it is on? |
Send message Joined: 29 Oct 17 Posts: 983 Credit: 15,899,361 RAC: 16,228 |
That would be really good. As I remember, the logic behind making WAH Windows only was having models be single platform improved consistency across batches. Will there be testing to check that all other things being equal the results from a given task will be the same whichever platform it is on?Good question. In practise the spread in forecast differences from running on different hardware/OS, should be considerably less than the spread from perturbations applied by the scientist to the model's starting state. I know this was looked at in a published paper years ago in the original long climate runs. People at CPDN will know more about this than me as I come from a weather forecast background, where the aim is to get the spread of forecast results about the same as the known errors in the data. As an aside, in the recent news about Google DeepMind's new AI weather forecast model, they stated they can't yet do ensemble forecasting. That's important because ensemble forecasting is key to understanding how good your 'best' forecast is. --- CPDN Visiting Scientist |
Send message Joined: 16 Jan 10 Posts: 1084 Credit: 7,684,326 RAC: 4,454 |
[Glenn Carver wrote:] As an aside, in the recent news about Google DeepMind's new AI weather forecast model, they stated they can't yet do ensemble forecasting. That's important because ensemble forecasting is key to understanding how good your 'best' forecast is. Thanks for mentioning that — the reports seemed very positive but without much context. |
Send message Joined: 29 Oct 17 Posts: 983 Credit: 15,899,361 RAC: 16,228 |
(Moderators: should we have a new thread of 'New work discussion' for 2024?) Forthcoming batches The following batches are planned for Jan (or early Feb). a/ Weather@Home (Windows)*
EAS25 - East Asia 25km grid, range of different forcings.
--- CPDN Visiting Scientist |
Send message Joined: 15 May 09 Posts: 4475 Credit: 18,448,326 RAC: 22,385 |
I will open a new thread and copy your message. |
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