NoiseMap Forums

NoiseMap Software => Hints and Tips => Topic started by: roger on July 19, 2021, 07:01:24 PM

Title: My model has got extremely large. How can I reclaim unused space?
Post by: roger on July 19, 2021, 07:01:24 PM

I made a lot of intermediate calculations which took up a huge amount of disk space.  Since I did not need them, I deleted these calculations.  I ran the database optimisation but this did not recover any space. How can I reduce the model to a sensible size before I take the project forward?

There is a neat possible solution but you can’t export a complete scenario tree.

You can export a single scenario using file>export archive. Select NoiseMap archive (.nma)

• This will export the plant, activities, geography, receivers (but not the results) for a single scenario, but this might be enough.
• Then start a new model and ‘import archive’.  This will recreate the scenario but without the dross. 
• Don’t forget to commit changes, preferably to a new scenario.
• I tried this with your test model and it drops to about one-tenth of the size.
• Of course, I haven’t checked whether there is important information missing, other than the scenario tree.

But at first glance it seems fine.  And it’s very quick to do.