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NAB and PCI
Anyone know if there has been a change in configuring a PCI expansion chassy to work with Graphics GPU. I know this is a major reason people have been hoping for a new Mac Pro. If they solve this problem you could build out from your imac. I was hoping there would be some news on this at NAB.
j
Jordan Mena | Editor | Colorist | Producer
Los Angeles, CA
jordanmena.com -
5 Replies
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an expansion chassis for GPUs over current Thunderbolt tech wouldn’t work too well because Thunderbolt is a 4x PCIe connection. Each GPU is 16x. Even the PCIe expansion chassis’s are a compromise because the most common config – four 16x slots; is still sharing four 16x GPU cards over a single 16x PCIe connection to the computer.
e
Eric Hansen
Production Workflow Designer / Consultant / Colorist / DIT
https://www.erichansen.tv -
[Eric Hansen] “an expansion chassis for GPUs over current Thunderbolt tech wouldn’t work too well because Thunderbolt is a 4x PCIe connection. Each GPU is 16x. Even the PCIe expansion chassis’s are a compromise because the most common config – four 16x slots; is still sharing four 16x GPU cards over a single 16x PCIe connection to the computer.”
Not every workload has identically demanding bandwidth requirements. Even Thunderbolt’s bandwidth (at least when working at 2K or below) is more than sufficient to send a video stream to and from a GPU in real time. It’s unclear to me if substantially more than this would be required.
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Digital Workflow/Colorist, Nice Dissolve.You should follow me on Twitter here. Or read our blog.
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It isn’t sufficient. Stick a gpu in a 4x slot and see how well it works in resolve.
Hint: not well at all.Colorist | Online Editor | Post Super | VFX Artist | BD Author
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Thanks guys. Back to the drawing board I guess.
J
Jordan Mena | Editor | Colorist | Producer
Los Angeles, CA
jordanmena.com -
Stop waiting for miracles (a new mac), buy a z820, and you will have 7 slots.
Stig
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