Tests with GP100 and NVLINK

[vlado]

Chris published some tests with GP100 and NVLINK, so far it seems quite impressive:
https://labs.chaosgroup.com/index.ph...e-nvidia-gpus/

Best regards,
Vlado

[Paul Oblomov]

nvlink means, that we don't have ram problem anymore?

[vlado]

nvlink means, that we don't have ram problem anymore?

It means that the RAM on the GPUs is added together. You can still manage to overflow that

Best regards,
Vlado

[Paul Oblomov]

What about cuda with shared memory ? I read pascal is able to use all the system mem.

[vlado]

Not with Intel CPUs...

Best regards,
Vlado

[Paul Oblomov]

Hows that Like there's any other cpu available

[danio]

Is there any word on whether this will be supported by the 10xx series? The article link made it sound like it's not yet...?
thanks!
Daniel

[vlado]

Is there any word on whether this will be supported by the 10xx series?

It doesn't look like it.

Best regards,
Vlado

[WilleViz]

Very interesting. It is a surprise to me because I didn't think NVLink worked with Intel CPU at all, but maybe the GP100 use PCI to connect to the Intel chipset and NVLink to talk to each other?

[savage309]

Very interesting. It is a surprise to me because I didn't think NVLink worked with Intel CPU at all, but maybe the GP100 use PCI to connect to the Intel chipset and NVLink to talk to each other?

NVLink works between GPUs with those bridges https://www.workstationspecialist.co...ro-gp100-3.jpg. It doesn't work between the GPUs and Intel/AMD CPUs.

Best,
Blago.

[WilleViz]

NVLink works between GPUs with those bridges https://www.workstationspecialist.co...ro-gp100-3.jpg. It doesn't work between the GPUs and Intel/AMD CPUs.

Best,
Blago.

Ahh, thanks for the info. Would love it though if nVidia allowed Intel to use NVLink tech ifor their chipset instead of old school PCI connections now.

[vlado]

Would love it though if nVidia allowed Intel to use NVLink tech ifor their chipset instead of old school PCI connections now.

From what I gather, NVidia doesn't mind at all, but Intel will never allow it.

Best regards,
Vlado

[dariofx]

I'm about to starting testing two NVIDIA GP100s with NVLink.

What NVIDIA driver do you recommend I use?

Also, which version of Vray for Maya should I be using in order to take advantage of NVLink?

Thank you!