| https://lh5.googleusercontent.com/-JxtVYlzIt_s/AAAAAAAAAAI/AAAAAAAAAso/cHL7edYF8Vo/s96-c/photo.jpg!1503127063725Antonio NoackHi dudes, only few will read this, but I need sb to tell, however I feel like nobody is listening at details:
I am working at weather prediction atm, where problems are the speed of PHP arrays, 4D matrices and evolution, next to saving all data on a MySQLDatabase because I don't have file writing access. https://lh5.googleusercontent.com/-JxtVYlzIt_s/AAAAAAAAAAI/AAAAAAAAAso/cHL7edYF8Vo/s96-c/photo.jpg!1503127182543Antonio NoackThe questioning of the database for the neighbors itself needs full ~600 milliseconds.
For my 3813 cities, the calculation for the prediction - including ~ 12k basic math operations for each one of them and each time iteration hopefully will be a solvable task for the time of the server...
I fear I've to keep few examples of weather over a long time, too, so I can evaluate my new networks on old data, too... season switch shouldn't happen. https://lh5.googleusercontent.com/-JxtVYlzIt_s/AAAAAAAAAAI/AAAAAAAAAso/cHL7edYF8Vo/s96-c/photo.jpg!1568880232577Antonio NoackJust as an update: I coded the evolution-prediction thing completely from scratch again in C, which then was 500-1000 times faster than PHP (!!!)
I created the basic prediction which is somewhat better than the weather state kept and copied the result into PHP which now makes the predictions.
The result for 2h is visible for public at http://phychi.com/wetter https://lh5.googleusercontent.com/-JxtVYlzIt_s/AAAAAAAAAAI/AAAAAAAAAso/cHL7edYF8Vo/s96-c/photo.jpg!1568880321148Antonio Noack[deleted] https://lh5.googleusercontent.com/-JxtVYlzIt_s/AAAAAAAAAAI/AAAAAAAAAso/cHL7edYF8Vo/s96-c/photo.jpg!1568880209390Antonio Noack(deleted)
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