p104-100 sli or nvlink help

[Snowarch]

will have 2 bios modded/8gb msi p104-100's i plan to sli in early may, but since its got some 1080 specs and some 1070, its hard to tell what bridge i will need.  my asrock z390 motherboard came with some type of bridge. how do i tell which to use for the cards?

 

pretty sure 1070 is sli only, but with the card having the memory clock of an 80, and being newer, it is hard to say. im using linux so shouldn't be too bottlenecked.

 

if this sli even works,

sli=afr, or sli=on multigpu=on?

 

 

 

do not know what the diffrence completely new to the conecpt of sli and on drivers 418 until 430 gets opengl 32 bit code for steam. heard modded minecraft, gtav, and shadow of the tombraider support sli so for gaming whats best sli command? also any tips for enabling physX or anything like that? i play in 1080p, yet minecraft gets only close to 30fps with bsl shaders high settings on my current card, so hopefully this sli will help. 

 

 

[Snowarch]

i have two p104's connected via a hb sli bridge, and i used the command

 

sudo nvidia-xorgconfig --sli=afr

 

only one card has high temps, the other stays idle(30 consistant degrees) in the nvidia xorg settings, so i'd assume its off. how do i get it to work? 

 

 

[BobVonBob]

Are you using a program that's SLI aware? Sticking an SLI bridge on the card and enabling SLI doesn't magically make every program work with SLI.

[Snowarch]

@BobVonBob well, yes heaven benchmark.

[BobVonBob]

1 minute ago, Snowarch said:

@BobVonBob well, yes heaven benchmark.

Granted this is an old thread, but Unigine Heaven for Linux doesn't do SLI. SLI is incredibly undersupported in Linux.

 

https://ubuntuforums.org/showthread.php?t=2219379

[Snowarch]

well, i plan to play gta, tekken7, and some other games like that which do support it through wine as well. also minecraft, i'm confused about. saw youtube videos of it supporting sli, but for me nothing.

 

also i saw somewhere its supposed to say (sli) in prentheses after display0. mine does not, so is it even enabled? @BobVonBob

[BobVonBob]

54 minutes ago, Snowarch said:

well, i plan to play gta, tekken7, and some other games like that which do support it through wine as well. also minecraft, i'm confused about. saw youtube videos of it supporting sli, but for me nothing.

 

also i saw somewhere its supposed to say (sli) in prentheses after display0. mine does not, so is it even enabled? @BobVonBob

Try using the flag --sli=on to allow the drivers to choose SLI mode for you, you might get better results.

[Snowarch]

will it tell me of its on tho? thats the part i don't understand. also i found you can enable sli profiles for opengl games and minecrafy, by making some settings true, but its complaining about everything when i try to even add a rule. how do i do that?

[Nayr438]

This may or may not help https://help.ubuntu.com/community/BinaryDriverHowto/Nvidia#SLI_.2F_Multi-GPU and https://wiki.archlinux.org/index.php/NVIDIA/Tips_and_tricks#Enabling_SLI

 

This may be of interest to, it seems dxvk has no plans to support SLI. https://github.com/doitsujin/dxvk/issues/617

 

I don't know anything about SLI, just thought maybe this would be somewhat helpful / informative.

 

Edit:

As far as I can tell Unigine Heaven doesn't support SLI under Linux and Most games that you force it on seem to run worse.

[TVwazhere]

-Topics merged-

 

Please refrain from posting multiple topics about the same subject.

[Snowarch]

what about running windows games under wine rather than dxvk? if ali is supported under opengl, and thats what normal/non-proton wine makes dx, i remember someyhing about sli being a thing for opengl linux. is that false?

 

@Nayr438

[Snowarch]

is 70degrees at 1887mhz/10,000memoey clock a good temp for my gpu? i think it'll be lower when i get the dust out. could i overclock the card if it does?

[igormp]

1 hour ago, Snowarch said:

what about running windows games under wine rather than dxvk? if ali is supported under opengl, and thats what normal/non-proton wine makes dx, i remember someyhing about sli being a thing for opengl linux. is that false?

 

@Nayr438

You can get it to work, but performance will probably be worse. Wine DX implementation doesn't support SLI for this very reason, and hardly any game supports it on linux. Also, nvidia has almost no profiles for SLI on their linux drivers.

[Nayr438]

17 hours ago, Snowarch said:

what about running windows games under wine rather than dxvk? if ali is supported under opengl, and thats what normal/non-proton wine makes dx, i remember someyhing about sli being a thing for opengl linux. is that false?

 

@Nayr438

As I stated, i don't personally know enough about SLI to give any good advice.

Here is what I do know.

• Wine DirectX Opengl vs DXVK, opengl is going to perform much worse and compatibility is much worse. opengl is what held back gaming for the longest time in Linux. This is why wine moved to Vulkan for its DirectX12 implementation, vkd3d. If you could do SLI in opengl, you would probably still benefit more from a single GPU under DXVK.
• NVIDIA only officially supports SLI for ID Tech 4 Engine Games and some CUDA Applications
• The Arch Page suggest SLI will make Gnome 3 perform noticeably worse. It was posted as a statement May 7, 2011 and the status hasn't changed. The Arch Wiki is usually updated fairly quick when something changes. I have also seen it mentioned when searching that Other Display Managers may even refuse to start or suffer in performance, the Arch Wiki also references this as an issue and advises disabling your display manager before restarting and attempting to start it manually.
• Most sources I have seen imply that in a SLI setup, most applications will only utilize half of one of the GPU's, making performance noticeably worse.

This is all going off what I found, it could be inaccurate.  But everything I have found so far, pretty much advises against SLI. The best thing you can do is test it for yourself and see how it works, if you already have both cards. The two links I shared above should help in getting it setup.

[Snowarch]

but thats the thing. gta, Tekken, Tr/shadow, and Darksouls support it on windows, why not through wine? a single  1070 can bearly handle the first one.

[igormp]

1 hour ago, Snowarch said:

but thats the thing. gta, Tekken, Tr/shadow, and Darksouls support it on windows, why not through wine? a single  1070 can bearly handle the first one.

The drivers are different.

[Snowarch]

since nvidia bricked any hope of raytracing, and or sli guess ill try to disable sli and physically remove card 2.

 

what about my overclocking question? if i get "green with envy"  and flatpak itself to work on ubuntu 16.04 to install it, is it even safe? 65% fans at 70 degrees on load 1887mhz speed. 10,012 memoey clock. thats stock.

 

getting a 2000 on heaven benchmark with opengl 4.0 render(card supports 4.6) also heaven doesn't use the full memory clock speed so it may be higher.

[Nayr438]

20 hours ago, Snowarch said:

but thats the thing. gta, Tekken, Tr/shadow, and Darksouls support it on windows, why not through wine? a single  1070 can bearly handle the first one.

Because NVIDIA provides an API for Windows to handle this. This API is different for Linux. While it is theoretically possible to create a translation layer for wine, I don't know of one. This would also depend on how well NVIDIA even supports it in their Linux Driver Stack.

 

I would imagine Display Managers would also need to fix there issues before something like this landed in wine. Given that Multi GPU has been slowly dying outside of workstation use on Windows, I don't imagine we will ever see a decent fix.

 

I overclocked my old 1060 when I had it, using GWE, but that was awhile back. I probably couldn't give any good advice on overclocking that card.

I have personally switched to AMD for Mesa and DXVK Reasons.

 

GWE itself should be as safe as say MSI Afterburner. I believe the cards have a hard bios limit to help prevent damage. As far as temps, 70 still isn't bad, while it will start throttling it shouldn't throttle too much, I wouldn't worry too much personally until it starts hitting closer to 80c. Looks like reference cards run around 76c under load.