Does anybody know...

[Toil]

Does anybody know how those GFX cards were interjoined, in that massive rig that was recently displayed?(http://securityledger.com/wp-content/upl...ng_HPC.jpg)

I'm not a hardware guy, but don't they all need to be plugged into a motherboard? Is he using a mobo that has 8 pcie slots?

Thanks.

[epixoip]

I'm probably not very qualified to answer questions on this, but the large rig is a TYAN FT77B7015 barebones, and the other systems in the cluster are Chenbro RM41300-FS81 + Gigabyte GA-990FXA-UD7. The servers are linked via InfiniBand, and clustered via Virtual OpenCL.

What makes you think they aren't plugged into a motherboard?

[Toil]

I'm probably not very qualified to answer questions on this, but the large rig is a TYAN FT77B7015 barebones, and the other systems in the cluster are Chenbro RM41300-FS81 + Gigabyte GA-990FXA-UD7. The servers are linked via InfiniBand, and clustered via Virtual OpenCL.

What makes you think they aren't plugged into a motherboard?

Okay then.

What does "InfiniBand" do? How does it 'link' them? A method to communicate to each other, I guess?(Instead of interwebs)

Reading http://hashcat.net/wiki/doku.php?id=vcl_cluster_howto , did the guy just use any old plain computer for the "master node"?, then the TYAZN and Chenbro's as the slaves?



"What makes you think they aren't plugged into a motherboard?"
Don't know, just didn't think it did. But that motherboard shows enough slots, so I guess it's that!


Thanks

[epixoip]

You can read about InfiniBand on Wikipedia: http://en.wikipedia.org/wiki/Infiniband

From what I hear, there is no master node; the guy runs the broker on a compute node. You can see more in the slidedeck from his presentation: http://passwords12.at.ifi.uio.no/Jeremi_...ords12.pdf

The TYAN chassis has enough slots, yes. It, and the Chenbro case as well, are designed for GPGPU.

[KT819GM]

You can ask Jeremi more about these nodes

[undeath]

You can ask Jeremi more about these nodes

hell, that guy is hard to catch