View Full Version : nnedi3_rpow2
LeXXuz
1st August 2023, 16:42
I'm looking for nnedi3_rpow2 function (or lib?). NOT the CL variant which I do have.
Avisynth.nl page seems to be down which is the top result on google. Everything else I can find seems to be the Vaporsynth version.
Anyone know where to get this?
DTL
1st August 2023, 16:54
It is part of jpsdr's NNEDI3 plugin. https://forum.doom9.org/showthread.php?t=170083
LeXXuz
1st August 2023, 17:43
Well that was not quite it. But you pointed me into the right direction. :D :thanks:
Actually jpsdr's plugin collection is the culprit I was missing, which seems to contain the rpow2 function for nnedi3.
https://github.com/jpsdr/plugins_JPSDR
tormento
3rd August 2023, 10:25
I'm looking for nnedi3_rpow2 function (or lib?). NOT the CL variant which I do have.
Why not CL?
LeXXuz
3rd August 2023, 15:48
Why not CL?
There is a VRAM memory leak with OpenCL and Nvidia RTX 30 cards which forces me to reduce Prefetch to a level where it is faster to use the CPU with high Prefetch. ;)
The very same code runs fine with AMD RDNA2/3 GPUs and older Nvidia GTX Series. Tested this very thoroughly.
tormento
4th August 2023, 12:25
The very same code runs fine with AMD RDNA2/3 GPUs and older Nvidia GTX Series. Tested this very thoroughly.
So I am on the safe side with my very old 1660 SUPER :)
Is it a driver, OS or hardware issue?
The leak affects 40xx too?
LeXXuz
4th August 2023, 17:18
Tbh I have no idea what the source may be. Tested a lot of drivers, Game Ready and Studio Driver versions on RTX 3060 Ti 8GB and RTX 3060 12GB cards on 4 different machines. They all act the same. Could be a memory management problem with Win11 on these cards, idk. Every GPU generation has different memory management.
My old GTX 1050 Ti works fine, Intel ARC 770 works fine and Radeon 6000/7000 series work fine, too.
One example; the very same script that eats up 11.8GB VRAM on RTX 3060 12GB (and does not even start as the GPU is at 100% utilization because it's contantly shuffling data between cache and VRAM), this script needs just 7.9GB on a Radeon RX 7900XT 20GB and works fine at <15% GPU util.
tormento
5th August 2023, 12:53
Tbh I have no idea what the source may be.
If I recall well, one of the differences between 20xx and 30xx is pcie resizable bar. You tried to disable?
Anyway get in touch with nvidia in official forums, they are usually very friendly.
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