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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Force Cycles GPU rendering for a Render Farm

So basically I'm on vacation for 2 weeks with a laptop without a CUDA device. I do have access to a render farm with GPU rendering support. Now the problem is that I can't setup blender to render in ...
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2k views

GPU Render with opensource AMD Ubuntu 16.04 driver

Is there any way that I can make GPU renders now that is no more flgrx for Ubuntu !? I've already installed the mesa-opencl-icd and the ...
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270 views

GPU Rendering Stopped Working

I was using GPU CUDA rendering with Cycles and it was working fine, but part way through the render it stopped working and I had to continue the render with the CPU. Now the "GPU Compute" option in ...
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0answers
158 views

OpenCL GPU rendering with AMD Carrizo?

I just got a new laptop that said it had the AMD Radeon R7 mobile graphics in it. Ubuntu recognizes it as "AMD Carrizo", and Blender 2.79 doesn't have the "OpenCL" GPU rendering option in the System ...
3
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1answer
398 views

Set GPU as render device when using Net Render

I have setup my master and slave blender servers following steps 1 through 16 on this link. I can send jobs to the networked system and it renders but I can not, despite trying a great many things, ...
3
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0answers
858 views

Multiple GTX 10xx No GPU devices in Cycles Compute Device

I have 4 Geforce GTX 1080. Nvidia 378.66 driver Windows 10 64bit. Blender v2.78b Blender User Preferences -> System -> Cycles Compute Device -> None Cycles render does not recognize my 4 Geforce ...
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0answers
3k views

Cycles GPU Rendering support for GTX 1060

I have just built my new computer with a GPU bought to be specifically compatible with GPU rendering in Blender. I made sure it was on the list of CUDA cards and it has at least 2.0, (6.1 in fact). ...
2
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0answers
505 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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0answers
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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0answers
227 views

Successive Frames Take Longer and Longer to Render

I have an unusual problem. I render a frame and it takes 1:46. Seven frames later it takes 2:18 to render a frame. Fifteen frames later it takes 2:34. After a few hours of rendering it takes over 5 ...
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0answers
138 views

Fastest way to move image pixels between Blender and GPU memory?

I want to cudaMemcpy directly into bpy.data.images["my_image"].pixels, is that possible? Right now I am doing this, and it is ...
2
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0answers
297 views

Image rendered with GPU shows less noise than CPU

This is an issue (or feature?) I experience with the blender version 2.76b from the offical ubuntu 16.04 xenial xerus repository. I can't reproduce it with 2.78c or 2.76b build from the blender ...
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0answers
584 views

How to force GPU rendering using SSH command in Windows?

I have two Windows 10 computers in the same network. I installed OpenSSH and can remotely connect from one computer from another. I have a blend file that is set to render by GPU. If I use ssh to log ...
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220 views

Why is the GPU not rendering normal map correctly?

I'm encountering this strange problem where if I render out my image in Cycles with a gpu the normal map is messed up. Perhaps inverted. It renders fine with the cpu (top image is rendered with CPU, ...
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0answers
282 views

Can't select AMD GPU running Ubuntu

I'm currently running Xubuntu 16.04 and I would like to use my 2 GPU's for rendering in Blender. They are currently unused and my CPU is doing all the work. But what have I got my GPU's for anyway? ...
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0answers
259 views

Cycles GPU renders transparent

I have (remote) access to a pretty powerful machine: i7/128GB RAM/2X Titan-X 12GB GPU/ Ubuntu 14.04, but when I try to use it to render any scene with Cycles (Blender 2.69/2.71) using GPU Compute all ...
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0answers
43 views

GPU and missing kernel…32b works but not 64b

So I just did a build with an ASUS GTX 980 ti with windows 7 64b OS. None of the 64b versions of Blender are working, they just flash a quick command window for a 1/2 sec and then nothing. The 32b ...
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0answers
104 views

Issues with cycle render using 3 GPUs - Possible problem with one of the cards?

I am having a problem relating to Cycles Rendering. I have 3 970s (not in SLI) and one of them seems to not like the Cycles rendering. In every case I have tried it will throw out a CUDA error: ...
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0answers
694 views

Two different GPUs, one for viewport the other CUDA one to be used exclusively for rendering

I'm struggling to manage the following setup. I have an Intel i5 with intergrated graphics which was driving successfully the OS GUI so far. I've added a GTX 580 which I would like to use it only for ...
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0answers
756 views

Cycles: AMD and Nvidia GPUs in the same machine?

Now that we're getting proper Cycles on AMD/ATI cards (in 2.75, and in testbuilds now), will we be able to mix them with Nvidia cards using CUDA? Would it be possible to GPU render with CUDA and ...
2
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1answer
682 views

Nvidia Quadro K1100M. No GPU listed

There is no GPU listed in Compute Device section in my Blender 2.77a x64 under Windows 7 in ...
2
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1answer
181 views

Towel hairs taking up too much gpu memory

I have an Nvidia GeForce GTX 750 GPU with two gigabytes of memory. I followed Andrew Price's Tutorial on how to make realistic towels in Blender, and I was only able to do 700,000 hairs (before my ...
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35 views

My GPU does not show up in CUDA

I have been looking around on the internet for a long while now, and I haven't gotten any info about this problem. I have a NVIDIA GeForce GT 710 in my computer, but when I try to use it for cycles ...
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39 views

Volumetrics - Different results GPU vs CPU

Hey fellow Blendy people, I'm running some benchmark comparisons between various render engines involving a lot of small, simple scenes. Anyway, on my test scene for volumetrics, I'm noticing a ...
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18 views

Which is better multiple weak GPUs or a single strong one?

Assuming all GPUs have the same vram Does having multiple older GTX cards out perform a new single strong RTX card?
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0answers
26 views

gbl shader blender 2.8

After adding an draw handler to my operator my terminal is showing the following: ...
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0answers
20 views

viewport render using gpu on other machine?

I got my main worstation with one 1060 and a render server with 4 p106, both machine connected each other with qdr infiniband, are there any way to use the gpu on server when using viewport render
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492 views

Unsupported Radeon VII eGPU rendering on MacOS and Blender 2.8 beta

I installed a Radeon VII into the Razor Core X eGPU, hoping to increase rendering speeds in Cycles on a 2018 15" MacBook Pro (i9, 32gigs ram). The beta 2.8 2019-6-12 version shows the message, "No ...
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0answers
162 views

Where are the settings to increase cycles threads?

I am trying to adapt the cycles render code to allow me to use the full threading power of my GPU (Radeon RX750 8Gb, 2048 OpenGL threads). There seems to be a limit from some time ago of 1024 threads, ...
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0answers
226 views

Blender 2.8 + eGPU Vega 56 + Mac - issue rendering viewport on Rendered and Texture setting

Just added eGPU with Vega 56 to my Mac setup and while it works in all but one aspect of Blender, there is an issue when I tell Viewport to use eGPU Vega 56 for Rendered and Textured views. Any idea ...
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1answer
38 views

Different gpu without sli.how will it work in terms of memory

I want to use gpu without sli to render.so how will this work? Example if i have a 8 gb and 11 gb card....will my system bottle neck and only use 8gb when rendering or will total of 19 gb of memory be ...
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133 views

Blender cannot recognize CUDA graphics card for headless render on linux

I'm trying to do headless cycle rendering on a linux server with nvidia gpu. Blender seems to have trouble finding the gpu. Running nvidia-smi gives me: ...
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0answers
207 views

How to render blender by using Google Cloud GPU

Is it feasible to do that? Are there any documentations available or any tutorial for reference? thanks!
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0answers
217 views

Blender on Linux: Dual-AMD-GPUs previously not found (single works, though); now working fine

I'm just trying to set up my workstation for Blender and got caught by a weird problem: Installing just a single GPU (AMD Radeon RX Vega 64) in the machine works fine with Blender. The GPU shows ...
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0answers
188 views

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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1answer
111 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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0answers
488 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
54 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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0answers
915 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
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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0answers
398 views

Crashes 2.79 (GPU)

I have a problem with crashes Blender 2.79 (2.79a, 2.79b and new "experimental") when I want to switch to rendered viewport shading (permanently) and/or add a material (frequently) with Cycles render ...
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0answers
194 views

Using GPU rendering on old AMD GPU

My system config are as follows: Processor: i386 GPU: AMD Cedar (Mobility Radeon card 5k series) on a laptop Blender Ver.: 2.79 OS: Windows XP 32bit( has Blender 2.76)/ Xubuntu 17.10 (blender ...
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2answers
593 views

Denoising not working with GPU

I have this problem, when I try to enable denoising when rendering with my GPU only I get a completely black rendering. When I render with CPU+GPU I get black tiles. I´m running Blender on an iMac ...
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0answers
238 views

Blender 2.79 doesn't detect my AMD GPU 270X

As described in the title Blender doesn't detect my GPU, it's an AMD Readeon R9 270x. I tried to install an older version of CCC but that didn't work too. There is one Strange thing at "OpenGl-...
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0answers
37 views

How eager Blender is about the GPU?

Just got my Fedora upgraded to version 27 and running there Blender 2.79. While using it I have faced a bit bad UI (it is not following what I'm selecting) or the who screen gets messy. See the exaple:...
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97 views

cuCtxCreate: Invalid device with two different Nvidia cards

cuCtxCreate: Invalid device with two different Nvidia cards I'm running Ubuntu 14.04 with Nvidia drivers 375.66 installed from the Nvidia site. I've got two cards: a GeForce GTX 560 and a GeForce GTX ...
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1answer
1k views

Render very slow using GPU from Radeon Sapphire RX 580 vs CPU

After installing Blender in Windows 10 and configuring the cycles compute device to use OpenCL with Radeon RX 580 Series, the render using cycles and GPU Compute takes much more time tan single CPU ...
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0answers
1k views

Why can't I see my GPU in blender

I can't see my GPU in the user preferences. It shows none and no name of GPU is selectable. In the system device manager list I can see my GPU. I'm using blender 2.79. My system Device Manager
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505 views

I can't render a scene with GPU Compute using intel Iris GPU

I have a MacbookPro with the following specs: Processor: 2.7 GHz Intel Core i5 Memory: 8 GB 1867 MHz DDR3 Graphics: Intel Iris Graphics 6100 1536 MB SO my problem is I have created my first ...
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0answers
47 views

Cross brand GPU's?

Has anyone tried using to different GPU's (i.e. an Nvidia paired with an AMD?) I know blender has the great feature of using two or more installed nvidia GPU's without any fuss, as that is what I am ...