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9 votes
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Is it possible to do OpenCL rendering on Intel processors?

As it's still quite experimental and there are quite a few features still missing, it's only enabled for AMD gpus by default. It's possible to "force" it to work on other opencl devices by ...
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  • 153k
7 votes

Selecting GPU with Python script

Right now, I am using Blender 2.90. Here is my Python code to detect and use GPU in Blender. ...
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  • 181
7 votes

Enabling GPU rendering for Cycles?

Also note that you need to change 2 settings to enable GPU rendering. The obvious one is in the User Preferences, System. You also need to set it for the blender file (scene) by clicking on the ...
6 votes
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Cycles OpenCL and Mesa driver support

TL,DR OpenCL will no longer be supported going forward, and GPU rendering accelaration under AMD cards is at the moment discouraged. Full Explanation OpenCL development is stagnant and the ...
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5 votes
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How to enable GPU rendering with my Radeon card in Linux?

AHA! So it turns out that I needed the ocl-icd-opencl-dev package installed. Once I installed that package... \o/
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  • 1,383
5 votes

Why can't i render smoke with my AMD graphic card

Not currently supported, I'm afraid. You can see the list of supported features over at the Blender manual As of Blender 2.78a, October 2016: ...
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4 votes

Render gpu use 1 core cpu!

When rendering an image using the GPU, the data somehow needs to be loaded from your disk, preprocessed, pushed into RAM, from there into VRAM where the GPU finally starts doing its job. Everything up ...
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  • 6,525
4 votes
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Blender on Linux - list of AMD GPUs that work with Cycles/OpenCL

This is a list of AMD GPUs known running together with OpenCL and Blender Cycles. It is composed by either personal experience or from sources on the web: ...
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4 votes
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Multiple GPU limitations with OpenCL and cycles?

TL;DR There is no official limit of GPU's on cycles but setups bigger than 10 GPU's were never tested so far. After not so extensive research I've contacted one of the blender developers. According ...
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4 votes

Why doesn't Blender detect RTX 2060 with OpenCL?

That is because Cycles in Blender 2.8x only uses OpenCL for AMD GPUs. For Nvidia GPUs you have to select either CUDA or OptiX (only for RTX cards until 2.90, then for Maxwell GPUs and higher). This is ...
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3 votes
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Is there a way to allocate more memory to GPU for the GPU Compute

Your computer already do this automatically. VRAM is only storing very frequently-used resources that need to be accessed in a very short amount of time. If/when the VRAM is used up, most computers ...
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  • 877
3 votes

AMD RX550 (4GB) GPU - OpenCL not available in Cycles Rendering Compute

I know this isn't the answer you're looking for (it's not one I'm happy with either), but, at the moment—even two months after you first asked… You either need a different video card or a different ...
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  • 131
2 votes

Support is planned OpenCL 1.0 in Cycles?

Not all ATI cards are supported. The list of supported cards per Blender Development can be found here. While this is not the entire list of cards that have shown to work, I believe they are the ...
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  • 377
2 votes

Can we mix CPU, Cuda GPU and OpenCL GPU for Cycles Render Farms

You should be able to configure the compute device on each machine, submit the render job, and have it "just work". In fact, this is the main reason why the compute device settings are in user ...
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  • 8,917
2 votes

Rendering Error with OpenCL

I just made the render use 100% of my resolution [...]. This is an important change, since a higher rendering resolution requires more memory. The error you are getting tells you that Blender could ...
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  • 4,704
2 votes

OpenCL option not available in Blender 2.78c running on Ubuntu 17.04

As of march 2017 GCN 1.0 is no longer supported for gpu rendering. Because the R5 M330 is using that architecture you won't be able to use it anymore in blender. Sources: https://wiki.blender.org/...
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2 votes

How to enable openCL rendering in Blender 2.75 rc2

I have found solution to my problem. To enable openCl on Linux Mint 17.1 with ATI radeon video card just install ocl-icd-libopencl1 package for 64 bit system, or <...
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  • 111
2 votes

Selecting GPU with Python script

Looks like you have multiple scenes in your file. To cycle through them and set them all use: for scene in bpy.data.scenes: scene.cycles.device = 'GPU' ...
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2 votes

How to bake using Principled + cycles under reasonable time? GPU + CPU = Instant crash

OK, looks like todays (07/07/2018) Blender 2.79 is baking using GPU + CPU without crashing. Plus I've unchecked the square samples and now it baked the same file with same node setup in 40min instead ...
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  • 31
2 votes

Blender 2.82 does not appear to be using GPU

I can only tell you how I have it running on our slurm cluster with CUDA, but the script also seems to support OpenCL.The GPU.py script seems fundamentally different from yours. ...
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  • 203
1 vote
Accepted

OpenCL device only visible as root

Found the solution was to change the ownership of /dev/kfd from root:root to root:video. Then add it to a udev rule to make it persistant: Add this to /etc/udev/rules.d/60-kfd-opencl.rules ...
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1 vote
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Selecting GPU with Python script

For reasons unknown to me, installing Radeon RenderPro for Blender has fixed the problem! https://pro.radeon.com/en/software/prorender/blender/
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1 vote

Opencl is not working on the Radeon HD 7750/8740 / R7 250E

Your GPU is GCN 1st gen. That's why it's not supported. Cegaton pointed out in a comment Can't use Radeon GPU to render in cycles (R9 270) Which is where I figured that out from this list here ...
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1 vote

CUDA & OpenCL GPUs compatibility in Cycles

Currenty, there is no support for AMD and nVidia GPUs to be used simultaneusly in Cycles (update is to arrive very soon from what I understand). One option is to use Radeon Pro Render engine developed ...
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  • 536
1 vote
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Blender settings and Windows drivers for OpenCL rendering

Just go to http://support.amd.com and download the latest driver. You cant do much wrong. Other then that, there's no special setup needed. Also: As you can see here, the OpenCL/AMD support in ...
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  • 728
1 vote

GPU rendering Crashes Blender

I had a similar issue, I'd set GPU render, it would say "loading render kernel (this may take a few minutes) and after a few seconds, crash to desktop with no error. I'm not an expert so this may be ...
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1 vote

AMD RX550 (4GB) GPU - OpenCL not available in Cycles Rendering Compute

Today I found a solution in installing drivers for this video card here https://forum.ubuntu-it.org/viewtopic.php?t=639965 I ran the installation with options (previously - removed the driver): ...
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1 vote

How to do GPU rendering on MacBook Pro 2016 (AMD Radeon Pro 460)

I recently got the MacBookPro 2017 Radeon Pro 555 2 GB + Intel HD Graphics 630 1536 MB. Having both GPU on apparently causing Cycles not to render. Just turning on Radeon Pro 555 and turning off ...
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1 vote
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Rendering with AMD Radeon R5 M330 gives an error that I can't understand!

This is a bug in 2.78 which has since been fixed in master (bug T49846, fixed in this commit). Luckily you don't have to wait, you can fix this bug yourself. Edit the following file: ...
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  • 126
1 vote
Accepted

Cycles uses processor as compute device

The HD6670, and other older Terascale-based cards from ATI/AMD, are not supported for GPU rendering with Cycles. We only support graphics cards with GCN architecture (i.e. most HD 7xxx and above).
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  • 2,285

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