2.1 KiB
CUSF Standalone Predictor - Version 2
Working on improving the Cambridge University Spaceflight landing predictor, a web-based tool for predicting the flight path and landing location of latex balloons.
Install
The source for the predictor itself is in pred_src/ and instructions for building it can be found there.
The following items need to be executable (chmod +x ./predict.py) by the user under which the predictor runs:
predict.pypred_src/pred(once compiled)cron/clear-pydap-cache-cronjob.shcron/purge-predictions-cronjob.sh
The predict/preds/ and gfs/ directories need to have rwx access by the PHP interpreter and the predict.py python script. You will need to install the following python packages: pydap, numpy, json, simple-json. We use at to automatically background the predictor, so you will need that installed.
Other than that, just clone this repo to a non web-accessible folder and create symlinks to the predict/ and hourly-predictions/ directories in the repo.
There are useful configuration options in predict/includes/config.inc.php.
Information
The two bash scripts in the cron/ directory should both be run daily. clear-pydap-cache-cronjob.sh clears the cache used by pydap so that old data does not build up. purge-predictions-cronjob.sh deletes scenarios and predictions not accessed or modified within the last 7 days. Re-running a prediction for a scenario will therefore reset its time to live to 7 more days.
The directory names are UUIDs comprised of an SHA1 hash of the launch parameters, and re-running predictions will overwrite data in the existing directory, rather than create a new one.
Credits & Acknowledgments
Credit as detailed in individual files, but notably:
- Rich Wareham - The new predictor and the hourly predictor system
- Fergus Noble, Ed Moore and many others
Adam Greig - http://www.randomskk.net - random@randomskk.net
Jon Sowman - http://www.hexoc.com - jon@hexoc.com
Copyright CUSF 2010 - All Rights Reserved