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[MuonDecay]

I think a lot of these sorts of things should really wait until the game is mostly done.   Consider it like a cake that needs to be baked before you can frost it.

Aw, but I want to bake each layer of my cake in a different oven! 

[FFLaguna]

I remember reading that there was some small part of DF that actually is multithreaded, or something. I forget what it is, but if I remember correctly it shouldn't account for a full 10%... I think it had something to do with the rendering. Then again, I'm probably just imagining things.

You and Keiseth could be on to something here. As far as I'm aware, Direct3D doesn't cause inflated core usage, but perhaps OpenGL does? But you're right, 10% out of 25% of an almost top-of-the-line processor is a little over the top. But who knows? This has been a pretty good thread so far.

[Dasqoot]

If you use sysinternals process explorer instead of task manager, it'll give you a lot more details on this. Specifically you can check which variables are using the second processor. My guess would be the openGL, but who knows.

[FFLaguna]

If you use sysinternals process explorer instead of task manager, it'll give you a lot more details on this. Specifically you can check which variables are using the second processor. My guess would be the openGL, but who knows.

I tried the program out. "kernel32.dll+0x11504" is adding an extra 7-8 percent of CPU time connected to Dwarf Fortress. My guess is that deals with the OpenGL display of Dwarf Fortress.

It's not certain, but I'm satisfied enough to go with that theory. Thanks for the suggestions, Dasqoot.

[Tormy]

Q: DF process is using more than one processor core somehow?
A: Nope

I wasn't reading all of the replies in this topic, but it is 100% that DF is using 1 core only.

[FFLaguna]

Q: DF process is using more than one processor core somehow?
A: Nope

I wasn't reading all of the replies in this topic, but it is 100% that DF is using 1 core only.

Except for the part where you didn't read the topic, and in fact DF is causing more than one full core to be used. 

[Tormy]

Q: DF process is using more than one processor core somehow?
A: Nope

I wasn't reading all of the replies in this topic, but it is 100% that DF is using 1 core only.

Except for the part where you didn't read the topic, and in fact DF is causing more than one full core to be used. 

Eh? I never noticed this on my dual core system, this is really weird. Either way I run DF on 1 core anyway, because that is the best.

[Jay]

Or maybe your number is just incorrect.
Mine's reporting exactly 50% of my two cores.

[Thuellai]

Except he's analyzed the program and found another process attached to DF that was, in fact, using a second core.

Just the one, though, so I suspect it is, in fact, the OpenGL components.

[Apoco]

Whats likely happening is that dwarf fortress is switching rapidly between multiple cores(it happens to me on my dual core) and as such it can end up causing the illusion that the single process is using more than an entire core. i'v noticed this happening with other single threaded application.

[Keiseth]

I really think it's the OpenGL thing. I remember some single-threaded programs using slightly more than one core's worth of power, and couldn't figure it out.

Sincle OpenGL is hardware accelerated, perhaps it has something to do with your video hardware. I have integrated Intel laptop graphics, for instance. I wonder what FFLaguna has?

[FFLaguna]

I really think it's the OpenGL thing. I remember some single-threaded programs using slightly more than one core's worth of power, and couldn't figure it out.

Sincle OpenGL is hardware accelerated, perhaps it has something to do with your video hardware. I have integrated Intel laptop graphics, for instance. I wonder what FFLaguna has?

Nvidia GTX 280. The most recent Nvidia card.

[Morberis]

I think a lot of these sorts of things should really wait until the game is mostly done.   Consider it like a cake that needs to be baked before you can frost it.

I was under the impression that it was easier if it was planned from the start.

[MuonDecay]

I think a lot of these sorts of things should really wait until the game is mostly done.   Consider it like a cake that needs to be baked before you can frost it.

I was under the impression that it was easier if it was planned from the start.

I'm pretty sure parallel processing is way easier to implement right from the beginning than it is after the fact, yeah.

That doesn't change the fact that Toady might not be comfortable having the extra complexity to wrangle with, though. I understand his reluctance, it's just one more thing to have bugs with and it would require learning a new discipline.

[Core Xii]

Dwarf Fortress itself is not multi-threaded. All game logic happens in a single thread. However, because it uses other libraries for sound and graphics, the application as a whole contains more than one thread.

This is true for nearly every program running on your computer. In fact, there's only one program on mine that uses but a single thread: Notepad.