Chaos Corona Forum
Chaos Corona for Cinema 4D => [C4D] Daily Builds => Topic started by: Stefan-L on 2024-11-09, 01:31:43
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for some reason i get often 100% cpu usage in IPR render, even though i set the IPR to not use all threads.
any idea?
this is new for me, i use latest v13 daily
this means i can hardly edit any while IPR is running
thanks
for info/help
Stefan
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What OS, and what hardware, please? And can you share screengrabs of the settings, so we can double check what you have set :) Thanks!
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win10, dual xeon 56 core, c4d 2024.5
default settings, denoiser for IPR off
also if i reduce the cpu usage settings for IPR it doesnt improve
i didn t have this in 12, but now in almost any bigger scene, i cannot even stop the the ipr render or close the vfb window(only after many tries)
the extreme cpu usage problem is ONLY when rendering IPR, not when rendering final images.
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ok maybe i found it; the default -1 setting (one thread less than all possible threads) seem not to work anymore, also not -2,-3,-4...
what does work it seems is set the actual thread number, so i used 24 threads and now ipr usage is like expected and the gui doesnt stall anymore.
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sadly i must say it isnt solved, the problem comes back after a time:
1) even though i set cpu thread usage to 12(on a 56thread pc) it often uses 99% cpu power, it seems to ignore this setting
i also had the case where it did ignore the max IR resolution which i have at 1600px, still it did render more than 17xxpx
it seems the settings are party ignored, it is not related to once scene but many new and older, most time faster a time of rendering,
it is ONLY in IPR, fial render works fine.
somehow i have the feeling v13 has a very aggressive threading for the pr, this is counter productive. today i had to force kill a project, loosing 20 min of work, and not even that worked, the only way was to force restart the whole PC.
i hope you can solve it, Corona is great, but this problem is quite a pain.
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Hey, the issue with IR threads limit not working should be resolved in the latest RC2.
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thanks Ales,
i load this right away, RC2 seem to have some very good fixes!
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Sure this is fixed for Mac version in RC2?
Still has 100& CPU on IPR.
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Are you sure Corona is not set to not use all threads in IR? In which case, it should be using 100% :) Can you share a screengrab of that setting please?
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Settings are correct?
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Yep, that looks right. Do you experience lag or slowdown as mentioned earlier? (If not, then the reporting system saying the CPU is 100% in use is not a problem - only if it's having an impact on responsiveness is it an issue). What OS are you using, and which version of Corona? Do you still see 100% usage (and lag) with threads set to something like -4? And what if you use the positive number as mentioned in an earlier post (so if you have 32 threads, setting "31" in there)? Thanks in advance for the extra info!
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I experience such lag whole system freezes during IPR rendering. Has not been the case before.
Changing thread-numbers seem to fix nothing?
Sonoma 14.5 (23F79)
Version • 12 Update 1 (Release Candidate 2)
Build timestamp • Nov 14 2024 02:38:57
Cinema version • 2025.1.1 Cinema 4D
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Why are you using an RC of Update 1, since it is out officially? Definitely be sure to be using the final official release :) You could also try the latest daily at https://forum.corona-renderer.com/index.php?topic=43211.msg230037#msg230037 - let us know if either of those builds still give you issues, as changing the thread numbers should make a significant difference (make it so Corona only gets 1 thread, ensure that things are a lot slower, then we know the number changes are working :) ).
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Well, my guess it's due to pure incompetence or post traumatic retardness. Will use latest and try it 🫣.
Sorry bothering you guys with stupid questions when I apparantly should check obvious stuff first.
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Oh, not a stupid question, as it may still happen with the official release - but is worth running it juuuuuust to be sure :) Eliminates some small possibilities on the cause if we know for sure. Anyway, no question is ever a stupid question (except the unasked one, as then it never gets answered!). Keep on with the feedback and questions, please!
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Are there any updates regarding the CPU usage at 100% both in IPR mode and render, and the consequent malfunctioning of the system with freezes, slowdowns, and stuttering of all windows, making it impossible to manage any Windows window or any program? I have tried both version 12 and version 13, but on my AMD 9950x, all this continues to happen. If I launch an interactive render window, or if I launch the render, the system freezes until the render is finished, making it impossible to work in other windows in the meantime or to use the interactive feature to manage and configure my scene with the creation of materials, lights, and effects, etc.
Sorry but... In this way, Corona Renderer is practically unusable, and I am just wasting my license time.
Are there any solutions or refunds available for users experiencing these issues?
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+1
I'm on windows latest version 24h2
Latest Corona 12 update1
Amd r9 5950x
IPR takes a long time to start and when it does the system freezes and slowdown.
It's very hard to work with
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Are there any updates regarding the CPU usage at 100% both in IPR mode and render, and the consequent malfunctioning of the system with freezes, slowdowns, and stuttering of all windows, making it impossible to manage any Windows window or any program? I have tried both version 12 and version 13, but on my AMD 9950x, all this continues to happen. If I launch an interactive render window, or if I launch the render, the system freezes until the render is finished, making it impossible to work in other windows in the meantime or to use the interactive feature to manage and configure my scene with the creation of materials, lights, and effects, etc.
Sorry but... In this way, Corona Renderer is practically unusable, and I am just wasting my license time.
Are there any solutions or refunds available for users experiencing these issues?
+1
I'm on windows latest version 24h2
Latest Corona 12 update1
Amd r9 5950x
IPR takes a long time to start and when it does the system freezes and slowdown.
It's very hard to work with
Hi, we have received some similar reports in the 3ds Max section: https://forum.corona-renderer.com/index.php?topic=43755.0
The solution we are aware so far is installing the BETA Windows Update version by going to Windows 11 Settings > Windows Update > Windows Insider Program, and enabling the Beta Channel. I hope this helps!
If the above doesn't help, you can also try the following:
- update your chipset driver
- update your BIOS
- disable core parking - https://learn.microsoft.com/en-us/answers/questions/1524213/remove-parked-status-of-cpu
- disable core isolation and virtual machine platform - https://www.makeuseof.com/windows-disable-two-virtualizations-game-performance-boose/
- go to BIOS and set CPU SoC voltage from the default 1.25V to 1.2V and Infinity Fabric (FCLK) to 2000 MHz
- change your power plan in Windows (try all available options, power saving, high performance, etc)
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I've tried everything you've listed to do and absolutely nothing changes on my 9950x with Asus ProArt X870e. Guys, this way it is really impossible to use CoronaRenderer, and we've been in this situation since December 2024.
Kindly (I imagine it's the same for everyone), try to resolve it shortly because we are in the third month where it is impossible to use the software correctly (which I love but alas, I'm now using alternatives like RedShift because I can't block the PC every time).
I don't want to be the bad cop in the situation, but until you solve it, at least offer us VANTAGE (hoping it doesn't have these problems), a way to at least mitigate the problem for those of us who have these inconveniences and are trying in any way to stay here and help you to continue the experience with CoronaRenderer.
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Have you tried installing the beta Windows Update? It is confirmed by multiple users as a fix to this.
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Hello Maru,
I'm writing to you with a heavy heart as I have diligently followed all the "directives" provided to resolve the issue, including installing an unstable beta version of Windows, which unfortunately has brought additional complications. I feel it's necessary to voice my concerns, not just for my sake but for everyone affected. It seems unfair to continuously rely on trials and errors suggested by others when it has only worked for a few.
The issue has persisted for three months without a substantial resolution or alternative solutions to mitigate the problem. Why not consider implementing a more robust approach or engaging experts with higher levels of expertise? These are merely my thoughts and suggestions, but it's evident that something must be done.
I am losing precious time, time that could have been spent working efficiently with Corona. Instead, I am forced to use other software, which I haven't paid for, leading to additional licensing issues and wasted efforts. Most importantly, this prolonged experience has drained my patience and hope. Despite all this time, no REAL solution has been provided, only a constant decline in the situation.
ps.:
Additionally, I have invested resources amounting to thousands and thousands of euros to enhance the computational power of my workstation and optimize CoronaRenderer. However, I find myself at a standstill, unable to accomplish even the simplest tasks, like rendering a cube, without encountering problems.
I hope you understand the gravity of the situation and take appropriate action.
Best regards,
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I've tried everything you've listed to do and absolutely nothing changes on my 9950x with Asus ProArt X870e. Guys, this way it is really impossible to use CoronaRenderer, and we've been in this situation since December 2024.
Kindly (I imagine it's the same for everyone), try to resolve it shortly because we are in the third month where it is impossible to use the software correctly (which I love but alas, I'm now using alternatives like RedShift because I can't block the PC every time).
I don't want to be the bad cop in the situation, but until you solve it, at least offer us VANTAGE (hoping it doesn't have these problems), a way to at least mitigate the problem for those of us who have these inconveniences and are trying in any way to stay here and help you to continue the experience with CoronaRenderer.
Vantage is even worse, not all material and tags are compatible, some scenes won't even open
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On the 9950X issue, this unfortunately appears to be a Windows issue and a problem with the latest update. Everything gathered from user reports and testing is pointing to that, and so while we understand it is frustrating, there is nothing we can do to fix it as nothing in Corona is broken, but something in that Windows update is broken. If there is evidence of a 9950X experiencing problems with a particular version of Corona WITHOUT having that problematic version of Windows installed (so, a prior version of Windows), do please send that in. But based on the evidence we are seen so far, we are all at the mercy of Microsoft to correct whatever problems they introduced in the latest Windows release (which has also carried problems for other software too, again based on information that has been posted).
I am not sure on the comment about Vantage though and how that relates to the original topic? Sounds like it should go in a different thread on its own, because it is a different issue?
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Good morning Thomas,
Thank you for your response, but I believe what you wrote is neither reasonable nor accurate. For the first time, I find myself in complete disagreement with you, despite your continuous assistance. This issue occurs not only with the 9950x but also with the 5950x, Xeon processors, and others. I also see that all users of 3ds Max and Cinema 4D with high core count capabilities face the same situation. This never happened before the introduction of versions 12 and 13, and the system is always Windows.
I'm sorry, but blaming others (Windows) does not seem like a good way to promote yourselves; on the contrary, it creates the opposite effect. No CPU software causes issues under Windows 11; instead, I have noticed a significant performance boost (and I have tested them all). Even your core limiter for Cinema 4D does not work, as the cores remain active even if I manually set them.
I have also installed the beta version, which is unrelated to the installed version of Windows. This problem has been ongoing since November (when you started releasing versions 12 and 13). If you look back at my other posts, you will see that in October and November there were no updates, and it was always the old version.
LINK TOPIC (https://forum.corona-renderer.com/index.php?topic=43754)
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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0
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Please note that there are separate issues, that are tracked separately, for general high core count machines, and the 9950X in particular (which has its own unique situation, which is related to the Windows update, which is what I was referring to here). On the general high core count, there have been fixes for those already in the latest Corona releases and hotfixes, so most of those will be resolved (one that may remain is high core count dual CPU systems, which again were a separate case). Of course if anyone is still having a specific issue, let us know, and let us know which CPU set up you have so we can see where the issue lies (general high core / thread count, 9950X in particular, high core / thread multi CPU systems so mostly Epycs). Thanks!
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I too found this strange occurrence with latest Corona plugin.
User set core/thread count is respected, but only when using Cinema's "Interactive render region" (Alt+R), all else uses all cores/threads.
Wouldn't had noticed, since I got single core reserved. After changing that to half, it got obvious.
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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0
Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?
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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0
Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?
Hello, I had the same problem with x9 PC (x5950/9950x and even 14900k was tested)
Best solution for now is rollback to 23h2, the general problem seems is in windows
Also, the problem was fixed and tested on few PC with 9950 with update to 24h2 26100.3321
(You can also turn off EXPO in bios in some cases that help as well)
We spend about a few months for making all possible test before find out that problem was mostly in Windows update after 24h2 26100.1742
Looks like they broke something in power plan, there not only corona suffer with that kind problem
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Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0
Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?
Try leaving the Insider program and then check for updates. The new update should just appear as available for download. There is a chance that it won't appear for you because, as far as I know, they are rolling out updates gradually.
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Good morning, Maru.
I hope this is a joke, but the only way to exit the Windows Beta Dev Insider program, as you indicated, is to REINSTALL A CLEAN VERSION OF WINDOWS. This means losing all my programs, settings, and everything else. This is what it tells me when I try to leave the Insider program.
Now, I don't want to go crazy, but for heaven's sake, can you evaluate the consequences of what you suggest and inform yourselves before offering random solutions just because someone wrote it on a forum? I'm literally getting angry about this. I have software with customizations, etc., and now I have to reinstall everything from scratch, losing even the libraries that are internal to the programs?!
I can't exit until the next release of a beta version of Insider, nor can I roll back to the previous version as it immediately installs the Insider one since "YOU CAN ONLY EXIT IF THERE'S A NEW VERSION" ... thanks for the damage! Your programmers, testers, problem solvers didn't know this???? If that's the case, I believe there is little hope that you can fix compatibility issues! Now I'm even furious.. thanks a lot!
And it's my fault for trusting and solutions blindly.
For all users: NEVER INSTALL THE INSIDER VERSION!!! AVOID IT AT ALL COSTS!
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IME, such issues can be/are prevented using special OS 'cloning/backup' tools...
(ie. "Reflect (https://www.macrium.com/reflectfree)"; personal preference, since they had free, unlimited time version, 'till not so long ago.)