question

Hossein Ahledayeri avatar image
Hossein Ahledayeri asked

Ram filling slowly every frame I rendered [animation]

Hi I have a scene with an alembic file and a bunch of catch simulations with 1920x1080 res


When I render in pictures windows or queue render my ram[32 gb] get filled slowly and finally crashed


RTX 3080 ti

Ryzen 9 5900x

bug reporting
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Peter Horvath avatar image
Peter Horvath answered

Do you have any imagers in the scene? We have a know memory leak using imagers, we are working on, reported here: https://answers.arnoldrenderer.com/questions/36548/memoty-leak-c4dtoa-oidn.html

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Okay thanks

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Hossein Ahledayeri avatar image
Hossein Ahledayeri answered

wow I have done more tests and I even remove any imagers than rendered animation sadly the problem remains, I have been using Arnold for a couple of years and I did not have this issue before

2 comments
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Do you have a scene you can share with us that reproduces this? Ideally the one without the imager. Is it a GPU or CPU render that's doing this?
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I always render with GPU, Definitely, it's GPU


scene --> not at the moment

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Randy Mills avatar image
Randy Mills answered

@Peter Horvath is the "known memory leak using imagers" for ALL imagers or just the new OIDN denoiser? I'm using the Arnold noice denoiser now and my scene keeps crashing on render unless it's super low resolution.

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Hossein Ahledayeri avatar image
Hossein Ahledayeri answered

That's the thing with or without imager I keep crashing, especially with higher resolutions that happen so fast, more resolution faster crash

,

That's the thing with or without imager I keep crashing

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Randy Mills avatar image
Randy Mills answered

I'm having the same issue Hossein. I just talked to an engineer at Fox Renderfarm where I've been trying to render the same image for the last 4 days and it's been a nightmare, he doesn't know what's happening either. Everything renders fine at lower resolution. I'm even tiling the image to make it more manageable on the render side.

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Thiago Ize avatar image
Thiago Ize answered
We got a scene that reproduces this problem on our end. The preliminary investigation looks like this might be a memory leak in the GPU when using textures, so every frame rendered consumes more and more memory.
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Randy Mills avatar image
Randy Mills answered

When I disable textures and shaders in diagnostics, my scene renders fine.

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Randy Mills avatar image
Randy Mills answered

Now I'm getting a WARNING: Invalid shader cache item 0x000001EBEE78DD80[dpdx_shader_cache.cpp(452)]

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