Eric Fiegehen
Forum Replies Created
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“That’s what I’m doing right now, mostly because I want to work with 4K grading and monitoring on a Mac Pro as soon as possible, and I think having 4GB of RAM and PCI 3.0 is the smarter long-term investment.”
Just to add something to Kevin’s comment on PCIe 3.0, Cubix will be able to offer upgrade backplanes for current Xpander Desktop 4+ products once we’re shipping Gen3 products late Q4 2012 or early Q1 2013. In other words, purchase a new PCIe backplane instead of an entirely new Xpander if you own a Desktop 4, Xpander Desktop Series II, or later rack mount models – and save some money! (we’ll offer factory upgrades for an additional service fee, as well as the field upgrade option)
Eric Fiegehen
Director, Visualization & GPU Compute Solutions
Cubix Corporation
ericc@cubix.com
https://www.cubixgpu.com -
FYI – We’ve yet to see anyone saturate a PCIe Gen2 x16 Xpander box Kevin. I’m sure the day will come sooner or later, but not just yet.
My guess, and BMD would be the ones to make the definitive call on this subject, is that the number of NVIDIA CUDA cores and VRAM capacity would have more of an impact on 4K performance than the PCIe Gen2 x16 bus bandwidth (which = 80Gbps theoretically, a little bit less when figuring in system overhead and other related factors).
Eric Fiegehen
Cubix -
LOL – I like your outlook on things Chris. If you can’t be optimistic, you can still have a good sense of humor…
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“Far more apparent? Kill off? I’m not really sure its a matter of intention as much as it is a matter of forgetting to put the food and water in the dishes in the next room, until one day the barking stops.”
LOL – I guess some people require less subtlety, like a brick dropped on their heads.
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I’m betting on this “iMac Pro” packaging direction as well. There seemed to be alot of interest in the similar-looking HP product shown at Intel’s NAB booth last month.
If they limit the external I/O connectivity to Thunderbolt on any new professional workstation product, Apple will lose alot of the people who kept them in business for years when they should have gone under (1990s). They could be successful by unleashing an iMac Pro model featuring a dual Xeon, capacity for lots of RAM and disk storage, integrated Quadro 4000 GUI card, an open (and accessible) 16-channel PCIe slot, plus a couple of Thunderbolt ports.
If their intention was to kill off professional market interest in OSX, it would have been far more apparent to everyone by now.
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Hi Guys,
I know that Mic Grover in Support is working with Charles, but please contact support@cubix.com if you’re running into any funky problems – whether they’re daily or just very 1-2 weeks.
Thanks,
Eric Fiegehen
Cubix -
Hi Joseph,
That’s not the way PCIe works. I believe Paul’s got an 80Gbps connection between host and Xpander, which means that any of those slots would have up to 80Gbps bandwidth performance at any given time.
Eric Fiegehen
Director, Visualization & GPU Compute Solutions
Cubix Corporation
ericc@cubix.com
https://www.cubixgpu.com -
That’s only part of the problem. Apple could fix that one if they wanted to.
The real issue is the inability to hot-plug a discrete graphics card into a PCIe bus – nobody can do it at present. Can you imagine all of the support issues involved with releasing a thunderbolt product to the masses of iMac and MacBook? Despite whatever you tell everyone as to proper procedure to use, many (if not most) will attempt to connect the discrete graphics to a live system without powering down first. That’s why you don’t see any one supporting the technology for use with discrete graphics.
Eric
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Cubix Desktop 4 can host up to 4 dual-slot, single-slot, or combination of both whether GTX 580 or 680 from a power and cooling perspective.
Eric Fiegehen
Cubix -
There are no drivers for GPU-Xpander, just use the ones supplied by your graphics card vendor and follow instructions as given by cubix support at https://www.cubix.com. The two Cubix websites will be merged into a completely refreshed site by end of May or early June, and we will make sure to put as much info as we can regarding Linux installations.
Eric Fiegehen
Director, Visualization & GPU Compute Solutions
Cubix Corporation
ericc@cubix.com
https://www.cubixgpu.com