What exactly you mean as "xfire"? http://en.wikipedia.org/wiki/Xfire This? Or AMD CrossFireX? If you talk about AMD CFX answer is no, it's only works for traditional fullscreen applications and this game will never use modal fullscreen.
If you mean xfire the gaming IM client type thing. Then no it doesnt support it. In fact almost no game does. It works the other way around most of the time. The xfire team write code or settings etc that xfire uses to work with games. It generally takes advantage of command line arguments and other such things, also spies on the game and detects what ports and addresses it is connecting to etc, if the game has some kind of api or data stream they will try hook that as well. I used to use it, but then steam happened.
He means crossfire or Sli for Nvidia users. At the moment the game doesn't support Multi GPUs. I did ask the question in the most recent live stream if the game would support it and one of the Devs said "Maybe". We'll just need to wait and see. I'm really hoping they will implement multi GPU support but my heart seems to be getting broken more and more by games not supporting it Cheers, -Todd
They can't support CrossFire as long as it's require modal fullscreen at moment. If AMD change this behavior probably there will be "maybe" for it's too.
Would you care to elaborate a little SSX on modal fullscreen. Won't AMD's newly announced MANTLE fix whatever issue there seems to be. I just have a lot of 5 series cards from bitcoin mining back in the day of GPU's Not that MANTAL can be enabled on the 5 series but i was holding off the upgrade till after NY. Otherwise yes, Crossfire is all but useless. No games are made to push them anymore. ArmA 3 i suppose. Maybe upgrade on release day.....
mantle might be able to fix such a thing. but mantle is also one of those things that is unlikely to become widely taken up very quickly outside of major engines. Especially a team like uber, fairly small compared to say DICE, or CRYTEK, are unlikely to do it,unless they use a proprietary engine who's creators add support at no extra cost, especially when it is tech that only targets a tiny fraction of the userbase, (as far as i understand old amd cards don't support it, i may be wrong here) Mantle isn't an opengl or direct x replacement, it is something that can do things that opengl and directX but that doesn't make it a replacement.
Those two aren't related. This game is using OpenGL on all platforms, it's won't use AMD-specific API. Check this bgolus post for more detailed answer: https://forums.uberent.com/threads/amd-mantle-api-in-pa.51882/#post-794986
I'm no expert concerning multi gpu stuff, either sli or crossfire. If I understand the comments correctly the game itself has to actively support this and it isn't something the OS does on system/driver level (some 2 as 1 magic)? Is this about it or are there just some modes/ways of doing things which are required when using system level multi gpu support? I suppose I could google it, but hey
Hi @asgo, I don't proclaim to be super smart when it comes to this stuff but yeah you're pretty much right. It is something that is allowed at the application level. If you have a game which doesn' t support SLi or Crossfire you can actually try to share the load between the GPUs via the GPUs control panel. If it doesn't support it then you can get some really crazy glitches or the game can just simply run worse. Having said all that just because a game doesn't support it doesn't mean it won't or can't. In the case of PA I think it comes down to how they built that part of the engine. It might be easy to re-work or add certain bits of code to allow multi GPU. On the other hand it might be difficult. I also haven't looked into this part of it but I'm not sure how much the GPU actually does. For example is a lot of stuff being handled by the CPU for calculations and what not instead of the GPU. If a game is CPU heavy as opposed to GPU heavy having a 2nd GPU won't really do much. Cheers, -Todd
