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Hello everyone! I am an official certified instructor of corona renderer from China! I would like to ask if the corona official considers adding a Chinese version like the vray renderer?
Is the dual Xeon 8480 ES, QS or Retail stepping? My older dual 8280s are extremely consistent in performance with my 3990X Threadripper for example.
It's been long time since I've used ES/QS builds, but a lot of shenanigans can happen between Windows Scheduler, Board microcode, Chipset drivers that non-retail steppings can be very sensitive to (unless manufacturers are using some more precautions, but the fault can be with motherboards as well).
What can be done to bypass these limitations is the old trick Vlado from Vray suggested almost 10 years ago, is to run multiple rendering sessions at same time. I've never personally done it, so not sure what is the best way today, I personally would try ProcessLasso, but experimentation is needed.
Of course, highly sub-optimal for single-renders, but doable solution for animations. And of course super-bad solution for workstation, but then dual-builds, even retail are generally poor workstations today.
Should we start ES/QS build thread btw :- ) ? Looks like golden age for this is upon us again lol! Lot more complicated situation with motherboards, but so many Epycs and Xeons and memory is very reasonable priced. Sadly I no longer need render-farm for my studio needs but I always loved building them.
Hi, Is anyone here running a dual Epyc Genoa system, preferably 9654 or 9754`s? I wonder if the scale is better than with EPYC 7702`s 1 CPU vs. 2 CPU systems.
Hi Guys,
I have a workstation with a Threadripper 5995wx CPU.
I have 128 GB RAM (32gb x 4) running at 3200 MHZ.
I did the Corona Benchmark in the morning (benchmark 1.3 and the new benchmark) and I got some good scores: first one 17 seconds, and the new benchmark 22 843 900 rays/s.
I've got a Cooler Master ML360 TR4, and the temps are 65 under full load.
I've installed AMD Chipset drivers, and now I get really bad scores (33 seconds, and 15 897 916 rays/s)
I have uninstalled all the AMD drivers, even restore the windows (to the point of having nothing, just right after I've installed the windows), and still getting these bad scores.
Even my other 3990X gets ~ 21 000 000 rays/sec.
I've attached the screenshots, on the left are the first results, and on the right the one that i have now.
I don't know what I am missing but maybe you have some advice.
Disappointed is this...
disapppointed
I switched to 3990x, and here I have the same problem as with the dual socket...(mayby sees this as gluing together two processors ((8+8)+(8+8)) + ((8+8)+(8+8)) ). I have to use bitmaps so that there is no loss of speed (many thanks to the guy who made the conversion script).
Hi, I just tested the 11th corona, there is still a problem with the speed on 2 socket systems ((
Is there any progress with this problem?
If it helps knowing I'm running a dual Epyc build that has 8 memory slots per CPU (16 total). Just for the fun of it I tried running the benchmarks (and one rather simple interior) in a 8 sticks vs 16 sticks scenario.
The results were for all intents and purposes identical between the two configs.
I do think that going with less than 8 sticks though would result in slower rendering - I haven't tested it out though.
Do note that each platform can be a bit different so the above might work for my 7B13 Epycs but might not for your dual Xeons.
Oh my god!
I just assume my RAM was working in quad channel (octo in 2 slots), using 4 sticks per cpu (8 in total). In fact, typical monitor software tells me my RAM is working in quad-channel, but I didn't try to populate all dimms (cos My boards have 16 slots!).
I will try this solution but I have to buy RAM to check it cos I don't have 16 RAM sticks...
