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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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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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
279 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
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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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1answer
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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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282 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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2answers
182 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
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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
108 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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6answers
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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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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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1answer
5k 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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476 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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270 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
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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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710 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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468 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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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
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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
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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
71 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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443 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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2answers
278 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
324 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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2answers
320 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
47 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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408 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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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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905 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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228 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
210 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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117 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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281 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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1answer
565 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
62 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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170 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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3answers
1k 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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1answer
1k 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 ...
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57 views

Multiple graphics cards. Is there a way to designate one as compute device only?

I recently bought 1070ti to be my main card and I also have old 1060 6GB model as a secondary card to aid Cycles rendering. I am noticing that both cards read (Display) in the Blender settings. Is ...
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50 views

Blender, was installed with dnf not support CUDA

OS. Linux Fedora 27 Today I bought GTX650Ti and connected it instead of 9600GT. I have reinstall drivers, and install CUDA packages. The fact is that Blender, downloaded as archive and unpacked can ...
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278 views

Cuda Error at cuCtxCreate: Unknown error

I am trying to get my dual GTX 1080 Ti working in Cycles, however no bingo. When I try to render a scene (just the box with nothing else in it) I get the error message “Cuda Error at cuCtxCreate: ...
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1answer
475 views

Cycles using only one of 3 GPUs

I've been using 3 GTX 1080 cards for more than a year now, for Cycles rendering, but just recently, all of a sudden, Blender is only using one of them, ignoring the other 2 for rendering. I can see ...
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38 views

Will rendering on a second GPU leave rest of the system (mostly) idle?

we need some longer Cycles Renderwork to be done an found that buying a second GPU is probably a lot cheaper than renting render nodes in the cloud. We're talking about weeks of render time. The ...
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3answers
2k views

Blender is only using one tile and only on CPU

I have tried to make blender faster by using my Nvidia GeForce GPU in the user preferences window and under the render options in the properties window. But I can see in the task manager that the CPU ...
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1answer
1k views

Help with “Cuda Error: Out of memory”

can anyone help me... I just wanted to do a quick clay render to see some shadow issues but I keep getting a "Cuda Error: Out of memory" message come up. I'm running the render off of my GPU which is ...
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2answers
2k views

EEVEE seem not to benefit from multiple GPUs for rendering

Recently I have built a new workstation PC with dual GTX 1080 Ti. I know that in Cycles, each GPU renders 1 tile but I'm not sure about EEVEE. I tested it and it seems that even if I have checked both ...
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1answer
723 views

Does Blender support the new AMD Vega M GL graphics card? If so, how must it be configured in order to work effectively?

This is my very first post, so please forgive and correct me if I do something incorrectly. I recently purchased the new (as of May, 2018) Dell XPS 15 2-in-1 laptop which has the new Intel Core i7 ...
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Render failure — GPU [duplicate]

So I'm trying to render using my GPU (Intel HD Graphics 4000 1536 MB on MacOS), but every time it fails. I went to the system preferences, checked "CUDA" and it selected my graphics card (so it would ...
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191 views

Cycles rendering with OpenCL keeps freezing

I've been using my AMD Graphics card for GPU rendering in Cycles for a while. I've never had problems, everything worked fine for months, until recently. When rendering with GPU, I can clearly see ...