Ian Mapleson
Forum Replies Created
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Assuming Adobe is working on adding support for Maxwell V2 CUDA (I don’t know for sure,
just guessing), I expect their plan would be to wait for the 980 Ti and Titan II to
come out before rolling out the update.You’ll get a display ok with a 9xx card and AE will run up, but there won’t be any CUDA
boost available. Thus, until support is added, the best card is a 780 Ti or Titan, though
multiple GTX 580 3GB cards offer considerable value (my quad-580 beats two Titan Blacks).But we’re just guessing though, I don’t know if V2 support is coming, or if so then when.
Ian.
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SGI Guru -
Best reply I’ve read in any forum this year… 😀 I mean, it’s in your sig…
Anyway, changing the subject entirely… 🙂
Todd, do you by any chance know why, when certain features or effects are used in a scene on
a multi-GPU system, rendering via RayTrace3D, the loading on any GPU is only approx. 1/N where
N is the no. of GPUs? (hence the overall throughput is barely any better than using just one
GPU). I’m assuming the use of identical GPUs here. When this happens, monitoring GPU usage
shows a distinctive sawtooth effect, as all the GPUs rapidly oscillate from low to high usage.Scenes like the one used on this thread scale well and don’t exhibit this behaviour (ditto the
much more complex scene I’m using for my own AE/CUDA benchmark), but I’ve seen other scenes
where it occurs quite strongly. Is there a particular type of plugin or effect one should be
wary of using to avoid this? Or does its cause lie elsewhere do you think?Ian.
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SGI Guru -
No solution atm, not until AE supports Maxwell V2 CUDA.
Ian.
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SGI Guru -
Update: I’ve obtained a 980, it can’t be used for AE yet because Maxwell V2 CUDA
is different and not yet supported.Testing via Blender and Arion though, overall it’s a bit slower than two 580s,
eg. two 832MHz 580s does the BMW Cycles test in 24s, vs. 26.5s for 1266MHz 980.Ian.
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SGI Guru -
Hmm, sounds like you’re doing it the right way, so I’m not sure what could be
causing the BSOD, some other issue. Are you using the latest drivers? There
was an update last week I think.Ian.
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SGI Guru -
Ah, I was going by the page title. 😀
Presumably what that note really means is that these versions of CS don’t support more
than one GPU on a single card. I’d need to check back through results on this page to
confirm that, can’t remember offhand. However, one can of course just use multiple
separate GPUs; my system has four 3GB GTX 580s.I hope to test a GTX 980 soon, once the seller I want to use finally has the relevant
model in stock (1266MHz EVGA ACX2).Ian.
SGI Guru
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The page you referenced only concerns CS5. I suggest reading back through this results thread
to check for single-card dual-GPU results, I’m sure there are a few. Just scroll to the top
of this page, CTRL+F and search for GTX 590 or whatever.Also of course, check the newer Adobe site info for relevant info.
Ian.
SGI Guru
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It’s no surprise they have a much smaller ‘officially supported’
list, since it would be difficult & costly to test every card, but
as I say how does it really matter? Just add your card manually to
the file called raytracer_supported_cards.txt in the ‘Support
Files’ folder within the AE program folder, then it will work
fine (my file has more than 40 cards listed atm). Use the identifier
string obtained from GPU-Z. There’s no need to wait for Adobe to add
official support to use any CUDA-capable card, and it would be
unrealistic to expect Adobe to support every viable gamer card, far
too many quality/driver issues involved. Frankly I’m impressed they
officially support any non-Quadro/Tesla cards at all.Ian.
SGI Guru
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Not sure there’s really any need to do that when one can just manually
add any NVIDIA card to the ray trace info file.Ian.
SGI Guru
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Goran, have you made sure the text string in the raytrace file
exactly matches the identifier string shown by GPU-Z?Ian.
SGI Guru