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[Max] Bug Reporting / Re: Very slow geometry phase 10x slower than old pc
« on: 2024-04-25, 11:27:22 »
Any news or findings from the dev team?
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That is not what I meant, there is nothing faulty with CPU. But that doesn't mean all software can utilize it in same way. How Embree can utilize the hardware depends on many aspects of software stack, from motherboard firmware to OS scheduler. If those things are written for retail SKU, tiny discrepancy can cause misutilization.Hi Juraj, thanks for your input, we or I am a bit frustrated , spend a small fortune and now this shit, hope the devs solves this soon.
Years ago, one of such solutions was upgrading Visual Studio redistributable used for compiling. Just saying it isn't as easy as updating libraries often, though I do hope it is for this particular issue.
I hope solution for your problem is found, but I will like to stress that if in some case you have non-retail stepping (ES/QS/etc..), the issue can be with on-chip memory controller which creates certain spiral of firmware/OS issues that can manifest under certain workloads (whether it's scheduler issues, CPU groups, NUMA nodes, etc..).
So if Corona team received fully retail unit (which in 2024 means all-in-one system for most Epyc stuff), they might not be able to replicate your issue.
It's bit risky proposition to build custom multi-CPU servers today, too many variables with zero support. Super hard to investigate and find what can be culprit.
Not saying that's the case, just be prepared.
Nice to know that Corona devs got the machine though.
We are checking this out :) In fact we just took delivery of a new super high core/thread count dual EPYC machine this week so that we can better investigate any reported issues along these lines.
Hi maru, yes we can share this scene, but it happens in all the project i am working on, tested this on 20+ different projects/3dsmax files and in every case it is the same: the geometry phase takes 10 x longer? also compared this with a friend (ryzen 5900x) and his geometry phase was arround 12 x faster (same scenes/projects, tested this with over 10 diff max files) so share?
It would be great to sort it out, and it would help others decide whether to go with 9654/9754. Can you please share the scene with Maru to sort it out?