Nvidia will no longer provide SLI support in their driver

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jimho
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Is it a good thing or bad thing to Octane Render?
Does this mean Otoy can treat Nvlink by themself?
If so, will the 2 pairs of 2080ti(2x2) can becomes possible?
SLI.JPG
https://nvidia.custhelp.com/app/answers ... e%20games.

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jimho
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this can be an explanation why We cannot find the SLI interface in the nvidia control panel after the version of 451.48 nvidia display driver.

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grimm
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SLI is only for games, Octane doesn't use it and in some cases it will slow Octane down a bit when activated. Nvlink is a faster connection between cards, is much faster than SLI, and is supported by Octane.
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jimho
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If you are using nvlink in windows you will find the issue is that you need to enable SLI, then octane render can use the nvlink
sli2.JPG
and the problem I notice is after 451.48, you cannot enable it in the nvidia control panel, means you cannot active nvlink in octane render
the new version of 2020.1.5 requires 451+ nvidia displaydriver, so for instance if you want to use nvlink 451.48 becomes the only usable one.

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grimm
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Yeah, sorry, I don't have cards that support NVlink so I can't test. All I know is what I have read here on the forum, that once NVlink is enabled in the Octane preferences that it will not be used until you load a scene that is larger than the vram of your cards. If you run out of vram then NVlink will be used. I don't think that it would depend on the Nvidia settings, although I use Linux and don't know how Windows handles it.
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jimho
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grimm wrote: I don't think that it would depend on the Nvidia settings,
I am sure about this.
viewtopic.php?f=24&t=75704#p388940

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nejck
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Just curious, so how does SLI / NVLink work moving forward then?
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jimho
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nejck wrote:Just curious, so how does SLI / NVLink work moving forward then?
per nvidia's post, since they had provide low level API, so in future it should be the game DEV handle the SLI/Nvlink issue directly,
so I am thinking maybe when this happen, the 2x2pairs of 2080ti could becomes true?
prviously it is nvidia do not want this happen...

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