SLI poll for DCS

[Akula]

I have 2 GTX 980’s and I suffer from lack of funds for a 1080TI while one of my cards sits idle in DCS... Sooooo, yeah, I’d like to see this implemented.

Edited March 28, 2019 by Akula

[CrimsonGhost]

I do not even have the slightest clue of what it would take to make DCS SLI compliant but I know I would love to see it happen as well. I have never read anything on why DCS does not take advantage of it so if anyone smarter than me in this area can shed some light on the topic I would really appreciate it. Thanks.

[Drag80]

so many threads and posts exists on this forum explaining how sli can work in dcs. My sli is working perfectly with 1070s. I run 4k ultra settings with 60 fps.

 

[Akula]

so many threads and posts exists on this forum explaining how sli can work in dcs. My sli is working perfectly with 1070s. I run 4k ultra settings with 60 fps.

 

 

 

Tried it in many different ways according to many different tutorials and it won’t work flawlessly in the latest versions.

[Gladman]

Yes but the various manufacturers of headsets need to make it compatible first of course.

[Drag80]

Tried it in many different ways according to many different tutorials and it won’t work flawlessly in the latest versions.

 

You must be using wrong settings in Nvidia Inspector settings.

 

My sli has always worked. The only catch is that I have to turn off the mirrors.

 

Lemme know if u need any guidance in this.

 

Regards,

[Akula]

You must be using wrong settings in Nvidia Inspector settings.

 

My sli has always worked. The only catch is that I have to turn off the mirrors.

 

Lemme know if u need any guidance in this.

 

Regards,

 

 

Well, I don't think I'm missing anything because the bottom line is that DCS currently doesn't support it so forcing and tweaking settings won't unleash SLI's full potential.

 

 

Drag80, with 2 1070's you should be getting far more than 60FPS but, if you're open to it, I'd love to meet you in TS or discord so we can go over your settings. If I can match them then maybe it will work.

[IRRE_Biluf]

so many threads and posts exists on this forum explaining how sli can work in dcs. My sli is working perfectly with 1070s. I run 4k ultra settings with 60 fps.

 

 

So it should work out of the box isn't it ?

[Nooch]

I would be in favor of having SLI in DCS but before this we would need to have better CPU optimization. Right now DCS basically runs on a single core and that creates a huge bottleneck for the GPU. Until we get that fixed first, adding a second card will only increase FPS by a marginal amount.

[Akula]

I would be in favor of having SLI in DCS but before this we would need to have better CPU optimization. Right now DCS basically runs on a single core and that creates a huge bottleneck for the GPU. Until we get that fixed first, adding a second card will only increase FPS by a marginal amount.

 

 

 

 

WTF??? Really? So this is why it runs like crap unless you spend a gajillion dollars on a setup

[Nooch]

WTF??? Really? So this is why it runs like crap unless you spend a gajillion dollars on a setup

 

Basically. ED's engine is very well optimized on the GPU side but not on the CPU side.

[rrohde]

I have 2 GTX 980’s and I suffer from lack of funds for a 1080TI while one of my cards sits idle in DCS... Sooooo, yeah, I’d like to see this implemented.

 

Been there: I used to have 2x GTX 980TI as well - put together with DCS in mind - and have since sold them towards my current 1080TI.

 

I think I would only ever go back to wanting two GPUs if/when each is used to render one display in any given VR HMD separately, meaning that GPU 1 is dedicated to the left eye, and GPU 2 renders the right eye's display. Not sure if that's even a thing or technically possible, but it sounds like it should be. ;)

Edited March 28, 2019 by rrohde
typo

[Akula]

And that's the thing that pisses me off so much. Everyone and their dog is saying; "SLI is a thing of the past. An obsolete solution", and yet all the motherboard companies are STILL making SLI boards and my guess is merely because it allows them to charge more for the boards listing it as a "feature".... Well it's not much of a feature if most of the newest games don't support it.

Edited March 28, 2019 by Akula

[Harlikwin]

VRSLI please.

[Harlikwin]

Been there: I used to have 2x GTX 980TI as well - put together with DCS in mind - and have since sold them towards my current 1080TI.

 

I think I would only ever go back to wanting two GPUs if/when each is used to render one display in any given VR HMD separately, meaning that GPU 1 is dedicated to the left eye, and GPU 2 renders the right eye's display. Not sure if that's even a thing or technically possible, but it sounds like it should be. ;)

 

It is for VR-SLI. Not currently supported for DCS.

[Danny_P]

Well with the eventual implementation of the Vulkan api this could certainly be an easier possibility, mainly because of the big cpu overhead we currently deal with. BUT, sli is dead now, reborn as NVLink. The way the cards work together with NVLink is different to SLI mainly down to the bridge data transfer rate. Don't quote me on this but I think there's less work in getting the two cards working together now due to them being able to simply split up the tasks. There's a reason Nvidia never really pushed sli, and it's because it's not all it's cracked up to be.

[moco]

Danny beat me to the punch, SLI is effectively dead with NVLink seemingly taking over. Even AMD has invested in it's own version of this called xGMI so you can be assured SLI/Crossfire is a thing of the past. I haven't read too much on NVLink but it seems like it's a pretty big improvement over SLI, the best analogy I heard to describe it was using the master/slave example.. In SLI one GPU will essentially control all the GPU's connected to it and all information must come from or be passed to the "master" GPU. The master will transfer data to the slave GPU's and once they're done the information is transferred back and then displayed onto the screen (Please correct me if I'm wrong, I know computers well but not the interworkings of SLI). With NVLink the GPU's theoretically share the work load with no master/slave system, all GPU's have access to the same information and it is distributed more evenly without the need for one GPU calling all the shots, this also allows them to use a bridge that allows much higher data transfer rates so when the GPU's do communicate or share data with each other it is at a much faster rate, SLI can do 2GB/s while NVLink on the new RTX cards can run at 50GB/s (25GB/s each way).. Like Danny said too this is much easier for developers to implement as well so once it (hopefully) takes of multi-GPU should be a more viable options for games, couple that with the Vulkan update we're getting and DCS should have itself set up pretty good for the foreseeable future.. sorry for the rant and terrible formatting.

[Akula]

so many threads and posts exists on this forum explaining how sli can work in dcs. My sli is working perfectly with 1070s. I run 4k ultra settings with 60 fps.

 

 

So how come you haven't shared your settings yet Drag80?