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Questions tagged [gpu]

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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Interface floats in window after switching screen resolution

Operating system: macOS Mojave 10.14.2 Graphics card: Intel Iris Pro 1536 MB Broken: 2.8 beta e57ee5934a30 Worked: 2.79 Problem: Blender window goes edge to edge, but interface only renders from the ...
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View port (Shift+Z) use CPU instead GPU?

My Cycles Rendering (F12) using CUDA (GTX1060 6Gb) and it works fine and fast - no problem! But when I use View port (Shift+Z) - it use CPU (i7-7700K) only on 100 % ??? GPU load only at 5-12 % at ...
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2answers
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AMD Radeon Pro 460 not showing up in sys pref

I'm trying to set up my AMD Radeon Pro 460 for Blender 2.8 but I'm not seeing the Device show up in the system preferences. Is this a bug or not currently supported & if so why?
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Mac Pro Tower - Sapphire Radeon Rx580 is really, really slow

I recently installed a Sapphire Pulse Radeon Rx580 8gb on my 2010 era (with upgraded CPU) Mac Pro tower. I did this because my former GPU, a NVIDIA GTX 970 is not "Metal Compatible" and would not ...
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37 views

Radeon RX 580 OS X and Blender 2.8 [on hold]

I'm wondering if I have a specific issue with my Radeon RX 580 on OS X with Blender 2.8 as it's not recognized as usable gpu. Or is it just we have to wait for a better support? On Blender 2.79b it's ...
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26 views

Why doesn't Blender find my graphics card on MacBook Pro 2017

I don't understand why Blender cannot find my graphics cards? Could abyone help? My config:
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17 views

How do I increase my threads? [duplicate]

I am running Blender 2.79 on Windows 7. My machine comes with 4GB RAM, Intel Core i5 (2.something GHz) and a dedicated NVIDIA GeForce 525M. I enabled it in Blender, and I now have GPU Compute as the ...
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Blender 2.8 No Render with 2 Nvidia K6000 show Cuda

blender running with 2 K6000 Gpu, the show up in General and also enable, but if i render anything the task manager shows only the cpu is rendering, also in the Nvidia Sytemsteuerung. What can it be? ...
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22 views

CUDA error: Out of memory in cuArrayCreate

When I try to change my Cycles Compute Device to CUDA in user preferences I continue to get CUDA rendering errors. This happens in my "rendered" viewport and when I try to render an image. The exact ...
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32 views

Blender using only 2-3% of GPU

During final cycles rendering blender using only 2-3% of GPU and 20-70% of CPU. How to change it?
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Vega HBCC support

Hello guys! Been experimenting with Vega GPUs and the HBCC option recently and although I didn't have scenes big enough to top 8GB of memory I finally found a way how to do it; just opened 2 of them ...
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“No compatible GPUs found” - Arch Linux

When I open Blender through terminal it has no error messages, however when I open settings I am greeted by this message. I am using an AMD Radeon R9 390X graphics card with the amdgpu driver. I know ...
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34 views

Clarification needed before GPU purchase [closed]

newbie in Blender and computer animation in general here. Worked for a while in Maya and 3DS but then my computer didn't allow me to go further unfortunately. Planning to buy my new pc in the next 2 ...
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1answer
40 views

Cycles Compute Device: None (Not even CPU option)

I was trying to enable CUDA under Cycles Compute Device to enable GPU rendering but realized I don't even have the CPU option. Just none. I just want to enable GPU rendering. OS: Ubuntu 18.04 LTS | ...
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36 views

Cannot use CUDA on my Mac

I have a Mac Book Pro (High Sierra 10.13.6), with an Intel I7 processor and an NVIDIA GeForce GT 750M Graphics card with the very latest drivers installed. My problem is that when I look at the ...
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GPU error on ubuntu

i have this problem, i type this command sudo CYCLES_OPENCL_SPLIT_KERNEL_TEST=4 blender and it start rendering and says loading render kernels (may take a few ...
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About bulding a renderfarm for blender.

I want to start a renderfarm service for blender users. But I have very little knowledge of machine hardware and networking. My main focus is on GPU render. Can anyone help?
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1answer
40 views

OpenCL device only visible as root

I'm trying to enable gpu rendering on my Vega 64 card in linux, but I can only do so as root. When I run blender as root user, this is what I see in preferences: The first one will cause my whole ...
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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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238 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
234 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
106 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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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
142 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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33 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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376 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
117 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
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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
77 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
282 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
55 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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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
153 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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128 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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29 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
2k 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
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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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62 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
641 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
203 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
77 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
242 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
55 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
35 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
57 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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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
272 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
18 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
71 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
157 views

Blender scripting GPU acceleration

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