Failed to load CUDA kernel from filter_compute_75.ptx #92900
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Reference: blender/blender#92900
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System Information
Operating system: Ubuntu 20.04.2 LTS
Graphics card: Nvidia A100-SXM4-40GB
Driver version: 450.119.04
CUDA Version: 11.0
Blender Version
Blender 2.93.5 (hash
a791bdabd0
built 2021-10-06 06:26:10)(unable to generate from Help > Report a Bug, because I am using gui-less mode on server)
Short description of error
When I run python script with .blend file in Blender's background mode, I get following error when it comes to rendering:
What's interesting, if I run same command on my local desktop, where I have:
Operating system: Ubuntu 18.04.5 LTS
Graphics card: Nvidia GeForce GT 1030
Driver version: 450.102.04
CUDA Version: 11.0,
everything works as expected.
Exact steps for others to reproduce the error
blender.crash.txt
Added subscriber: @VictorAtPL
Added subscriber: @Alaska
Changed status from 'Needs Triage' to: 'Needs User Info'
This report is very similar to #91879
An important aspect is that you need to be using Nvidia driver version 470 or higher. You're using 450.119.04 which could be causing this issue.
Added subscribers: @Raimund58, @pmoursnv
Weird, I was Googling quite a lot to find similar bug, but couldn't find anything worth.
That's right, I am using r450 and I am not able to upgrade the nvidia driver, because I am not the sudoer of the server.
However,
Does it mean that if I build Blender locally (with r450 and Cuda 11.0) with enabled Cubin for sm_80 then it might work? Or this is a vain hope?
You can give it a try. I'm not sure if it will work but since Patrick Mours works at Nvidia I'm inclined to believe him.
To build Blender you can follow these steps: https://wiki.blender.org/wiki/Building_Blender
If you wish to use Blender 2.93 rather than 3.1 (which can have major bugs as it's early in development), then you should follow the guide described until you get to the step
Update and Build
. Rather than running the commands:I would recommend (I'm not sure if the second make update is necessary, but it's worth doing just in case):
For help with CUDA and OptiX there is a little bit of information here that might be useful: https://wiki.blender.org/wiki/Building_Blender/CUDA
For configuring the build of the
sm_80
kernels make sure you checkout the section on that page that says:However instead of leaving just the architecture you need, you're adding an architecture,
sm_80
Note about this section with CUDA: You want to edit the file
CMakeCache.txt
in~/blender-git/build_linux/
then runmake
again in the source directory (~/blender-git/blender/
)So I tried to built Blender by myself with
sm_80
andcompute_80
, but it fails.Please see attached files for Dockerfile (commands I used to compile Blender) and log.
compile.log
Dockerfile
e.g.:
Edit:
Error 137 means I am running out of memory. I do have only 16GB of ram. I'll let you know if I succeed to compile it on larger node.
By default all listed GPU architectures files are compiled at once and that can take up a lot of RAM. You can enable the option
WITH_CYCLE_CUDA_BUILD_SERIAL
and it should compile each file separately. The compile time will be longer but RAM usage will be much lower.Thank you, @Alaska - I successfully compiled Blender.
However if I use compiled version locally (with Minimal Working Example I pasted on top of this discussion), I get
CUDA cuInit: Unknown CUDA error value
.console.log
I'd like firstly to make Blender work locally with GT 1030 before I start it with A100.
I suppose it's more like a CUDA error right now rather than Blender. Do you know any way of how to enable more extensive debug logs of CUDA?
Changed status from 'Needs User Info' to: 'Archived'
I'm not sure. I believe your best approach is to continue this discussion on https:*devtalk.blender.org/ or https:*blender.chat/channel/blender-builds where you will likely get help from people more experienced than myself. Also, this site is aimed at bug reports and bug tracking, not for help with compiling Blender (one of the other reasons I'm suggesting those other sites).
Remember to explain your issue and the limitations you're facing (You don't have access to
sudo
on the A100 system and as such you can't update the GPU drivers to a supported version to use the pre-compiled version of Blender)