Intel OpenCL doesn't work in binary, but does work when compiling from source #88389
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Reference: blender/blender#88389
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System Information
Operating system: Linux-5.8.0-49-generic-x86_64-with-glibc2.31 64 Bits
Graphics card: Mesa Intel(R) HD Graphics 5500 (BDW GT2) Intel 4.6 (Core Profile) Mesa 21.1.0 - kisak-mesa PPA
Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-17 22:30, hash:
ea11b4e10c
Worked: compiled from source from version 2.93.0 Alpha, branch: master, commit date: 2021-01-15, hash:
cab6d5e94a6
Short description of error
Hi!
I was able to get OpenCL working on my Intel Broadwell HD Graphics 5500, which is a part of my i5 Broadwell CPU, after compiling Blender from source.
However, it's not working with the Blender binaries.
The folks from Intel's compute runtime helped with this. There's a detailed ticket here: https://github.com/intel/compute-runtime/issues/392#issuecomment-792403630
This links to the last comment which summarizes the steps I took at the end to get it working.
One thing not mentioned in that comment is that I had installed the NEO Compute Runtime OpenCL drivers from here: https://github.com/intel/compute-runtime/releases/tag/21.01.18793 using the deb packages. It's mentioned in a comment further up in the thread.
Then I ran these commands:
That failed so did this instead:
That outputted this command which was saved for later but not yet run:
After that, I ran blender like below, and it was able to render the default cube using OpenCL. It also rendered the Pavillion scene. It ran much faster than the CPU for both scenes, which was very nice considering I don't have a discrete GPU. I also used intel_gpu_top to confirm the GPU was being used.
Exact steps for others to reproduce the error
Download blender experimental 2.93.0 - Beta (3.0.0 - Alpha has the same problem) from https://builder.blender.org/download/daily/.
Run blender using this command:
Go to Edit -> Preferences -> System -> Cycles Render Devices -> OpenCL
Check
Intel Graphics [0x1616]
Uncheck
Intel Core i5-5200-U CPU @ 2.20GHz
Exit Settings Window
Click the
Render Properties
button on the right.Set
Render Engine
toCycles
.Set
Device
toGPU Compute
Click Render -> Render Image.
Error Messages
The terminal output looks like this:
/tmp/blender.crash.txt looks like this:
Thanks!
Added subscriber: @jarrellmark
Added subscriber: @Jeroen-Bakker
Best to ask these questions on devtalk as it isn't a bug that in our releases, but how it is setup/configured at your side.
Changed status from 'Needs Triage' to: 'Archived'