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A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the rendering or output images.

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Cycles rendering on 3x1080ti ----2x1080 with slow CPU and low RAM

I'm trying to use my mining rig like render farm. All carts are connected by raisers PCI-E x1 not PCI-E x16 ports. MB: ASUS Z97-E/C/SI CPU: Celeron G1840 Ram: 2GB GPU: 3x1080TI 3x1080 I use blender ...
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31 views

CUDA error at cuCtxCreate: illegal address | CUDA error: illegal address in cuCtxSynchronize(),line 1683

Hi everyone! I have a problem with the latest daily builds As far as I remember last working build was 24.10.18. On this build everything works on all the following I get an error also I have a ...
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1answer
212 views

Is there a way to make Cycles render slower to use less GPU resources

Is there a way to make rendering in Cycles use less GPU resources? Like some console parameters for rendering engine or settings within Blender? I tried render scene with the console (no UI), ...
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2answers
52 views

Render the same frame using multiple computers

Is there any way to use Cycles to render a frame with two computers? I have a desktop PC and a laptop, both with a GTX 1070 and I would like render the same frame having 2 tiles, each tile being a ...
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0answers
23 views

Cannot use Cycle after installing a GPU

Before I updated my computer (previously Core I3 Ram 4GB and no graphics card, to my knowledge.) everything run fine, maybe lagging here and there but nothing special. But after I upgraded my computer ...
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1answer
41 views

CUDA error: Out of memory in cuMemAlloc(&device_pointer, size) line568 [duplicate]

I am trying to render a scene, but I constantly get the same error message: 'CUDA error: Out of memory in cuMemAlloc'. The scene is 3480 by 5304px. I'm rendering with my GPU on a 64 bit operating ...
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0answers
20 views

Error when rendering with GPU

I’m still quite new to blender so this may be an obvious question. When I’m rendering my scene it works fine with CPU, but the GPU brings an error “scene too complex to fit in available memory”. The ...
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118 views

Blender stopped rendering with RTX GPU

My Blender has stopped rendering with Cycles and path tracing. It was working great but at some time stopped working. I have a RTX 2080. The error I get is related to CUDA problem: "CUDA binary kernel ...
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2answers
62 views

Rendering using both GPU and CPU is not possible

For some reason I'm unable to render on CPU+GPU. I've checked on 2 different computers and it's not available. One setup is Threadripper + GTX 1070, and the other one Intel i9 + GTX 1080. Is it a ...
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0answers
26 views

Is it possible to use GPU to edit very high polygon meshes in Blender?

So I have a mesh I'm working on and it's little over 4,000,000 polygons, and the performance is bad already. I have like 2 frames in edit mode. I'd like to get the model to at least 66,000,000 ...
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2answers
67 views

Render is grainy with GPU

Here is my problem. When I try to render with my GPU the image (mainly the lights) are not the same as with my CPU. The image is more grainy with the GPU than with the CPU and even if I do not change ...
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1answer
147 views

Blender on Linux - list of AMD GPUs that work with Cycles/OpenCL [closed]

Which AMD GPUs are useable with a recent Linux, more specifically Ubuntu (18.04) and AMD drivers? Or are there some that definitely don't work? This question is not off topic because either a GPU ...
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1answer
41 views

Any reliable and comprehensive GPU/CPU cycles rendering study

OK, I'm a 10 year+ user and about to upgrade GPU. Having tested my previous builds I know the following: the CPU can bottleneck the GPU rendering at some point If I Overclock my CPU my gtx970s gets a ...
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4answers
3k views

How can one do rendering with Cycles using an NVIDIA RTX GPU?

I have a NVIDIA RTX 2080. I've got an error like this: CUDA binary kernel for this graphics card compute capability (7.5) not found. Does someone know how to enable it?
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1answer
74 views

CUDA, 3D Hardware & Nvidia driver, my Blender goes crazy

First I want to say that yesterday everything worked fine for me. Let's start. When I launched the blender this morning, I saw this: I very quickly found a solution to this problem (Blender Can&#...
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0answers
35 views

Which driver should I use for Blender on Linux with an AMD GPU?

Which drivers should I install for best OpenCL performance on Linux? I recently tried installing the proprietary AMDGPU-PRO and they failed to install "Error kernel something". After that I tried to ...
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0answers
21 views

Blender crashing cycles with new graphic card

I'm going to set up a computer to work from home on some projects and I installed an NVIDIA Quadro P400 graphics card. When I used a computer board that worked in cycles but now with the NVIDIA Quadro ...
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1answer
1k views

RTX support for Cycles

Running Cycles on a 2080ti gives me this error: "CUDA binary kernel for this graphics card compute capability (7.5) not found." After digging around and finding lazydodo's old post I learned that I ...
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0answers
55 views

Blender does not seem to utilize CPUs and GPUs effectively for rendering

I've just built myself a new machine because rendering times on my laptop were prohibitive. It's an i7900 10 core processor, 32GB RAM and two Quadro P4 graphics cards with 8GB memory each. The cards ...
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0answers
49 views

Cycles GPU rendering turns to really slow with big image sizes

The question seems noob, but give me a moment, because I should know something about these things. I am rendering a semi large architecture outdoor scene with buildings and nature surrounding it. The ...
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2answers
345 views

How do I get Blender working with AMD OpenCL on Linux?

I am using Arch Linux and am trying to use GPU Rendering in Blender. In the Arch Linux Wiki from Blender I read that I need either the AMDGPU-PRO or the opencl-amd package. So I installed the opencl-...
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2answers
68 views

GPU Rendering Only in Viewport (Cycles)

I've enabled GPU rendering (CUDA) for my GTX 1060 and it's awesome. 3D viewport views render much faster than before. Monitoring my GPU shows it at 60-100% usage while Cycles samples. However, when ...
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2answers
44 views

What is a 8, 4, 2 and 1k texture?

I read about this for GPU computation and limitation. I don't know what it is...
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0answers
102 views

How to ensure Blender uses the GPU when running from the command line on a headless Linux computer?

I have Blender installed on a Linux machine with 6 Nvidia GPUs (GTX 1060) I have an ssh connection into it but it doesn’t look like Blender is using the GPUs. The ...
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1answer
51 views

Why render time in blender is increasing 10 times after rotating 3d model?

I'm rendering this scene in cycles (blender) on GPU with GTX 780 3GB In preview mode it takes about 2mins to render 2000 samples. In final render mode it takes about 40 seconds But i need to rotate ...
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1answer
20 views

Why render time in blender is increasing 10 times after rotating 3d model?

I'm rendering this scene in cycles (blender) on GPU with GTX 780 3GB In preview mode it takes about 2mins to render 2000 samples. In final render mode it takes about 40 seconds But i need to rotate ...
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1answer
53 views

I'm new to blender, Help me! [closed]

I want to learn Blender, Unity and Unreal, and I’m about to purchase new laptop. The question is do I need touch screen or touch tablet for blender? Do I need to be artist to use Blender? Also, did I ...
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0answers
25 views

Which command is the right one for rendering with GPU?

I have a script that loads a scene with objects, cameras etc. and also sets the gpu rendering settings. When I use the script up until the rendering command and then click on the render button, the ...
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1answer
178 views

Unable to render with cycles using GPU: failure to compile CUDA kernel

I am failing to render with Cycles. When I hit F12 in a default scene (just a cube) it says "CUDA kernel compilation failed, see console for details." I read that you can pull down from the top of the ...
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0answers
16 views

Cuda error in the middle of render

I just rendered animation of the same scene i am trying to render now just with higher samples. It rendered fine when i rendered the animation which was at lower frames, but now i am trying to render ...
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1answer
41 views

Blender crashes with GPU installed

On a recently assembled computer, attempting to run the BMW Benchmark using CPU render causes the screen to flickers after a few minutes and blender crashes, while using GPU render works fine. After ...
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1answer
117 views

Blender scripting GPU acceleration

Is there any possible way to accelerate the python's script execution inside of blender using GPU ?
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1answer
69 views

multi gpu also for viewport?

does having more than one gpu also have an impact on speed of the rendered viewport in cycles ? (renderd viewport i mean the traditional shift z render ) or multi gpu rendering is only okay for the ...
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1answer
30 views

Blender not using selected compute device

I have 2 GeForce GTX 750 Ti GPUs in my system (no SLI), the first has 3 monitors on it and the second has nothing connected. Under the system tab in user preferences I selected the second GPU to be ...
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0answers
76 views

Problem with GPU rendering : Radeon RX 470

I need help about rendering in Blender, when I try to render using GPU it freezes and quits the program without any changes. CPU render works well. I'm using Radeon (TM) RX 470 Graphics.
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0answers
219 views

How to fix CUDA error: illegal address in cuCtxSynchronize(),line 1372

I am having trouble to render anything on cycle render mode with my GPU. I can render anything with my cpu but why my gpu is not working.I will be very helpful if I get some answers. My pc spec GTX ...
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0answers
35 views

GPU doesnt show up in Zip Versions of Blender releases

I thought that my GPU didn't support CUDA until i checked the installed version of Blender. Because i never really used the installed one from the start, it didn't come across. The new releases i've ...
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0answers
227 views

Blender 2.79 does not detect GPU AMD RX580

I've bought AMD RX580 recently and it seems Blender can't detect it, it has "none" in cycles compute device in system settings. I have ubuntu 18.04 installed, and already installed latest AMD linux ...
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0answers
81 views

How do I enable GPU rendering for Radeon 5870 in Linux?

I am running Ubuntu 18.04, I use blender 2.79, and my GPU is an ATI Radeon HD 5870. I am really hoping someone here can help me with setting up GPU rendering. I have installed many different ...
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1answer
96 views

2 GPUs but only one render tile [duplicate]

I have two GTX 1080 and for a while when i press F12 blender rendered everything with 2 tiles. Right now no matter what i do there is only one render tile. In system tab in user preferences i can ...
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0answers
49 views

Why are there holes in a mesh when I am rendering with my GPU in Cycles?

I have a big peoblem. It started to happen few weeks ago, which makes me think that it is because of the update to Windows 10. (Also I had trouble with Photoshop.) The problem is, I can render all ...
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0answers
125 views

CPU render result differs from CUDA's one on smoke [closed]

The final result of a smoke render differs if using GPU (NVIDIA 1050 Ti) or using CPU (AMD 1300X). Any idea why? CPU render - Volume sampling 0.1 - Volume bounces: 0 CUDA render - Volume sampling 0....
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0answers
23 views

Rendering with GPU [duplicate]

I've enabled CUDA in User Preferences and Selected GPU Compute in the render menu. When I render a model it takes the same time for Rendering with the CPU only and GPU Compute mode, sometimes it ...
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1answer
265 views

GPU Rendering Slower?

After looking around the web for a while, I've gathered that GPU rendering in Blender is supposed to be much faster than CPU rendering, but on my machine, the CPU is actually slightly faster? My GPU ...
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1answer
42 views

Cycles GPU Render button is looking passive [duplicate]

I am adding a image. Why i can't use this render?. I am using Windows 10 and AMD Radeon Software. My Blender versiyon is 2.79. I did install yesterday (27.06.18) I can't find a solution for AMD Radeon ...
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0answers
74 views

Same scene 1 GPU = OK, 2 GPUs = Out of memory?

Strange, strange problem this one. Intro: I had cycles with these 2 GPU + CPU working well for renders. Then, after some time, I took the 750ti out and continued working with only the 1070ti + CPU ...
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0answers
271 views

Why is Blender 2.78c/2.79/2.79b CUDA Rendering option not available with Nvidia GTX780Ti on Windows 8.1 OS?

Does anyone know why Blender will not show CUDA option for rendering in Blender if I use Nvidia driver later than Driver Version 388.71 released on December 20th 2017? The CUDA Compute Rating is: ...
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2answers
61 views

GPU not showing up in Blender?

Just installed Zorin OS (a Linux distrubution) and installed Blender. I am running this Linux alongside Windows 10. So I go to the system tab in Blender and see that my GPU is not listed! Why is my ...
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0answers
17 views

Blender using CPU instead of CUDA [duplicate]

I'm new to Blender, and I'm having a fairly annoying problem. I'm running a windows 7 64bits, on an i5, 8GB DDR3 RAM and a GTX 660 (2GB memory), which according to the documentation, is compatible ...
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1answer
525 views

How to get OpenCL functioning for GPU rendering, AMD GPU?

I'm running blender 2.79b and Blender won't recognize my card. AMD Radeon HD 7900 Series, GCN 1st gen architecture OpenCL™ Version: 24.20.11021.1000 Vulkan™ Driver Version: 2.0.33 Am I missing ...