DUAL GPU render with cycles during 3D view port rendering leads CUDA error. #73353

New Issue

NXSK · 2020-01-24T04:47:49+01:00

NXSK commented

2020-01-24 04:47:49 +01:00

System Information
Operating system: windows 10 1903
Graphics card: 2 * GEFORCE GTX 1080ti NVIDIA 441.87

Blender Version
Broken: 2.81a and same with 2.82 daily build ( Jan 22th 2020)

Short description of error
I'm using AMD 3950x and 2 GTX 1080tis.

The render engine is cycles. When 3D view is processing rendering, simply press F12 to render.
After the render finished, The 3D view port shows canceled on the top left side, the view port render failed.
And if you press F12 to render again. the blender render view shows CUDA error at cuCtxCreate : render failed.
In the render properties panel, in this case, sometimes the rendering device GPU is greyed out, can not be choosen.
I can only choose CPU as render device, and CPU workes fine.
Reboot blender the problem will be solved, but if I try F12 rendering while 3D view port is rendering, the issue comes again.

I tested this process with my intel i7 6800K and single GTX 1080 machine. It works totally fine.
But with 2 1080tis, it happens at nearly 100% chance no matter I choose CPU+GPU or single GPU. Sometimes blender crashes instantly.

I asked my friend who is using AMD 3700x and Nvidia 2070 to follow my step to test. He don't have the same issue. 3700x and 2070 works fine.

So I tested to render with one GPU and then another. The result is the first slot GPU works fine, but the second slot GPU has this issue. When rendering with the second slot GPU, the render cannot finish and blender not responding.

Exact steps for others to reproduce the error
First It happens only on 1 GPU. Another works fine.
Start blender, switch render to cycles and device to GPU compute.
Switch 3D view port to rendered. Before path tracing finishes, press F12 to render.
CUDAerror.blend

**System Information** Operating system: windows 10 1903 Graphics card: 2 * GEFORCE GTX 1080ti NVIDIA 441.87 **Blender Version** Broken: 2.81a and same with 2.82 daily build ( Jan 22th 2020) **Short description of error** I'm using AMD 3950x and 2 GTX 1080tis. The render engine is cycles. When 3D view is processing rendering, simply press F12 to render. After the render finished, The 3D view port shows canceled on the top left side, the view port render failed. And if you press F12 to render again. the blender render view shows CUDA error at cuCtxCreate : render failed. In the render properties panel, in this case, sometimes the rendering device GPU is greyed out, can not be choosen. I can only choose CPU as render device, and CPU workes fine. Reboot blender the problem will be solved, but if I try F12 rendering while 3D view port is rendering, the issue comes again. I tested this process with my intel i7 6800K and single GTX 1080 machine. It works totally fine. But with 2 1080tis, it happens at nearly 100% chance no matter I choose CPU+GPU or single GPU. Sometimes blender crashes instantly. ![canceled.jpg](https://archive.blender.org/developer/F8298547/canceled.jpg) ![cuda error.jpg](https://archive.blender.org/developer/F8298549/cuda_error.jpg) ![3dview.jpg](https://archive.blender.org/developer/F8298551/3dview.jpg) I asked my friend who is using AMD 3700x and Nvidia 2070 to follow my step to test. He don't have the same issue. 3700x and 2070 works fine. So I tested to render with one GPU and then another. The result is the first slot GPU works fine, but the second slot GPU has this issue. When rendering with the second slot GPU, the render cannot finish and blender not responding. **Exact steps for others to reproduce the error** First It happens only on 1 GPU. Another works fine. Start blender, switch render to cycles and device to GPU compute. Switch 3D view port to rendered. Before path tracing finishes, press F12 to render. [CUDAerror.blend](https://archive.blender.org/developer/F8298556/CUDAerror.blend)

NXSK commented

2020-01-24 04:47:49 +01:00

Added subscriber: @NXSK

NXSK commented

2020-01-25 04:06:50 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

NXSK changed title from ~~AMD CPU machine render with cycles during 3D view port rendering leads CUDA error.~~ to AMD 3950x machine render with cycles during 3D view port rendering leads CUDA error.

2020-01-25 04:10:10 +01:00

NXSK changed title from ~~AMD 3950x machine render with cycles during 3D view port rendering leads CUDA error.~~ to DUAL GPU render with cycles during 3D view port rendering leads CUDA error.

2020-01-26 17:00:14 +01:00

mike commented

2020-01-30 03:13:01 +01:00

Added subscriber: @kosblend

mike commented

2020-01-30 06:17:12 +01:00

Getting the same issue on latest 2.83 2020-01-29 with my gpus 980 and 970.
Only if i disable the 2nd card on the 2nd slot will this work ok.

Getting the same issue on latest 2.83 2020-01-29 with my gpus 980 and 970. Only if i disable the 2nd card on the 2nd slot will this work ok.

Aaron Carlisle commented

2020-02-25 03:25:49 +01:00

Added subscriber: @Blendify

Aaron Carlisle commented

2020-02-25 03:25:49 +01:00

Can you test with rendering blender from the command line. I could not reproduce with a 1050ti and a 2070.

https://docs.blender.org/manual/en/latest/advanced/command_line/render.html

Can you test with rendering blender from the command line. I could not reproduce with a 1050ti and a 2070. https://docs.blender.org/manual/en/latest/advanced/command_line/render.html

Aaron Carlisle commented

2020-02-25 03:26:18 +01:00

Changed status from 'Confirmed' to: 'Needs User Info'

NXSK commented

2020-03-01 15:31:06 +01:00

In #73353#879773, @Blendify wrote:
Can you test with rendering blender from the command line. I could not reproduce with a 1050ti and a 2070.

https://docs.blender.org/manual/en/latest/advanced/command_line/render.html

Thank you. I tried start blender with windows command line, keeped it open, and use blender GUI to load the scene and reproduce the steps.

Now I'm using blender 2.82 stable release.

As a result you can see from the screenshot I uploaded. Does it help to analysis what happened?

And thank you again for helping.

> In #73353#879773, @Blendify wrote: > Can you test with rendering blender from the command line. I could not reproduce with a 1050ti and a 2070. > > https://docs.blender.org/manual/en/latest/advanced/command_line/render.html ![CUDAerror.jpg](https://archive.blender.org/developer/F8381622/CUDAerror.jpg) Thank you. I tried start blender with windows command line, keeped it open, and use blender GUI to load the scene and reproduce the steps. Now I'm using blender 2.82 stable release. As a result you can see from the screenshot I uploaded. Does it help to analysis what happened? And thank you again for helping.

Campbell Barton commented

2020-03-10 02:42:40 +01:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Sebastian Parborg commented

2020-08-03 14:51:05 +02:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2020-08-03 14:51:05 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Needs User Info'

Sebastian Parborg commented

2020-08-03 14:51:05 +02:00

Is this still an issue with the latest Blender version and the latest Nvidia drivers?

Isaac commented

2020-08-24 16:22:12 +02:00

Added subscriber: @isaaccslam

Isaac commented

2020-08-24 16:22:12 +02:00

In #73353#989641, @ZedDB wrote:
Is this still an issue with the latest Blender version and the latest Nvidia drivers?

The issue is still not fixed.
I am using dual 1080ti and the latest Nvidia studio driver 452.06, and Win10 2004.
I have tried 2.80.5 and 2.9.
I can only render with a single GPU.
If I select using both GPU to render, blender will crash or could not render successfully.

> In #73353#989641, @ZedDB wrote: > Is this still an issue with the latest Blender version and the latest Nvidia drivers? The issue is still not fixed. I am using dual 1080ti and the latest Nvidia studio driver 452.06, and Win10 2004. I have tried 2.80.5 and 2.9. I can only render with a single GPU. If I select using both GPU to render, blender will crash or could not render successfully.

Richard Antalik commented

2020-10-12 17:08:09 +02:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'