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OpenCL

Skysnake
Adept II
Adept II

Re: maximum number of GPUs?

Thx, for me it was not possible to post this

And some mor informations what is possible with something like this monster

http://passwords12.at.ifi.uio.no/Jeremi_Gosney_Password_Cracking_HPC_Passwords12.pdf

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nexusts
Journeyman III
Journeyman III

Re: maximum number of GPUs?

The GPU limit in Windows 7 is 32 GPUs per OS. Three are reserved for remote services and the primary desktop.

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zzz1000
Journeyman III
Journeyman III

Re: maximum number of GPUs?

Interesting, it looks like no such kind of hard limit is set in modern Linux system. Instead, there is a kernel configuration option named "Maximum number of GPUs" under Linux, and we can set it to an arbitrarily large value freely.

In practice, I can confirm that more than 16 GPUs running on a single motherboard is possible, for I have just built such a rig by myself (with 18 GPUs, on a Supermicro X9DRX board). See https://devtalk.nvidia.com/default/topic/649542/cuda-setup-and-installation/18-gpus-in-a-single-rig-...

However, just like the FASTRA2, my rig is also built with NV cards. Hope AMD can solve the driver issue so we can build a similar or even more powerful rig with AMD cards.

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himanshu_gautam
Grandmaster
Grandmaster

Re: maximum number of GPUs?


Thanks for the suggestion and input.

AMD will definetely come back on this if required.

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titanius
Adept II
Adept II

Re: maximum number of GPUs?

Revisiting this question again.

Is there still a 8 AMD GPU limit within linux/windows? I would like to pack more than 4 295x2 within a system...