If you are having trouble with computation time, and you're using a standard hysplit install (i.e., not parallel), the most likely culprit is your processor's single-core performance. Hysplit will only use a single CPU core, and there isn't much that can be done to speed it up for a set hardware configuration beyond optimising the inputs to the model.
However, you can run at least as many instances of the hysplit executables (e.g., hyts_std) as you have CPU cores (see viewtopic.php?t=1260). You will need to make a working directory for each instance, and each instance will require its own chunk of memory for met data. I have not tried to do this with the GUI, but it works well via scripting. I recommend running as many instances as you have cores, minus one to leave some processing power spare for system processes. Running 4 or 5 can require quite a lot of memory.
However, you can run at least as many instances of the hysplit executables (e.g., hyts_std) as you have CPU cores (see viewtopic.php?t=1260). You will need to make a working directory for each instance, and each instance will require its own chunk of memory for met data. I have not tried to do this with the GUI, but it works well via scripting. I recommend running as many instances as you have cores, minus one to leave some processing power spare for system processes. Running 4 or 5 can require quite a lot of memory.
Statistics: Posted by Harris_MRP — January 13th, 2025, 11:00 pm