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just ordered a 15k thread ripper platform because it's the only way to cheaply maximize the pcie16x bottleneck. the mining rigs are neat because the space you n
by cyanydeez 3y ago
just ordered a 15k thread ripper platform because it's the only way to cheaply maximize the pcie16x bottleneck. the mining rigs are neat because the space you need for consumer GPU is a big issue.
those rigs need pcie riser slots that are also limited.
looks like the primary value is the rig and the cards. they'll need another 1-2k for a thread ripper and then the riser slots.
- dijit 3y agoavailability is tight i think but check out the ampere altra stuff, they have an absurd number of pci’s lanes compared to AMD and especially intel, if you can suffer the ARM architecture. They also have some ML inference stuff on chip themselves.
- choppaface 3y agoBut then you need to deal with arm compile issues. A lot of common packages are available for arm, but x86 is still least likely to distract your development.
- segmondy 3y agoUnless you are training maximizing the PCIe lanes is truly overrated. You certainly don't want to be running at 1x speed. But 8x speed is enough with minimal impact. 8*3 = 32 lanes. Most CPUs can provide that. I'm running off a 2012 hp z820, that yields 3x16/1x8. So for anyone going for a build, don't throw money on CPUs. IMHO, GPU first, then your motherboard second (read the specs sheets), then CPU supported pcie lanes & Storage speed.