KSP optimisation

[Nucluer]

Can KSP be optimised to use all the cores in the pc or mac it is running on?

[TheCanadianVendingMachine]

Ah yes, it seems like the devs forgot to flip the "Optimize Game" in the engine. Silly them

That is way harder than it sounds, buddy. You can't just "optimize" stuff.

[Alshain]

Nucluer, to understand that you have to understand that KSP uses the Unity game engine to render and interface with hardware. The game engine is a platform that the game is built upon so the KSP developers don't have to re-invent common tasks. Specifically it currently use Unity 4 which does not have multicore support. Version 1.1 is coming down the road sometime from now which will include a port to the Unity 5 engine. Unity 5 does support multi-core.

So the short answer is no, not yet, but soon.

[MAFman]

So Unity 5 has multi-core support? Squee!

[Eric S]

So Unity 5 has multi-core support? Squee!

Yes, though there will be limitations on it. No one outside of academic research that is doing general connected rigidbody physics simulation is splitting a set of connected parts between multiple threads yet that I can tell, so it looks like you're still limited to a single core for a single craft.