CPU usage is 50% maximun

Hi. In a long algorithm in unity the maximum CPU usage is 50%. I have a dual-core, then the other processor remains unused. This results in a considerable increase in computation time. How can I use both the CPU so that the duration of the calculation is less? Thanks in advance

 

You'd have to look into multithreading. The problem here is that Unity itself isn't entirely threadsafe: if you try using threads to do stuff like adjust the position of a transform, it will throw errors. The reason for this is so that during the Update loop, everything in the scene is in a known state for the main thread.

However, there is a way around this: make your code not depend on Monobehaviour by creating customised classes that don't interact very much with Unity objects. Here is a pretty good article on how to get around it, with a multithreading package available for download at the bottom. Hope this helps.

 

Thanks for your reply.. but Oh my god it is so difficulty D:

 

Isn't entirely thread safe? Heh... Reading writing almost any variable on a subclass of UnityEngine.Object will throw errors or just silently fail. I've used Loom (from unitygems, not the other costly one) but then I found, the seemingly quite unknown, Concurrency Kit from Spicy Pixel.

It's a port of the Task Parallel Library, a library included in later versions of .NET than Unity's Mono, and it has been adapted to fully work with Unity's coroutines. It's very easy to use:

Code (csharp):

1. // Do something on another thread
2. Task task = Task.Factory.StartNew(() => GenerateData(data));
3. // Then do something on the Unity main thread
4. task.ContinueWith(t)=> InsertIntoUnity(data));

This will call GenerateData on another thread, wait until it is finished (without blocking Unity's main thread) and then call InsertIntoUnity on Unity's main thread. Concurrency Kit is also free.