no GPU render CUDA 8 Ubuntu 16.04 (was good with 7) #49311

New Issue

Jaufré Aligé · 2016-09-09T23:42:07+02:00

Jaufré Aligé commented

2016-09-09 23:42:07 +02:00

Hey,

System Information
I'm using Ubuntu 16.04 x86_64 nvidia-370 (and just tried changing back to 367) I used nvidia-367 + CUDA kit 7 from repository and blender 2.77 until some weeks ago without any problem.
I have a GTX 780.

Blender Version
Broken: blender 2.78 RC from ppa:thomas-schiex/blender (package "blender" but "blende-edge" looks like the same atm). No GPU rendering.
Archive "blender-2.78-d0e7c7a-linux-glibc219-x86_64.tar.bz2" from blender.org : same thing
2.77a : same

Short description of error
I'm trying this because some people asked me if they could use their new GTX 1070 and 1080 with blender (they need CUDA 8).
I installed CUDA kit 8 from Nvidia website, then opened Blender 3.78RC1 : no GPU render.

Exact steps for others to reproduce the error
Install CUDA 8 from developer.nvidia.com, open Blender. Go to Preferences → system : no GPU rendering

Hey, **System Information** I'm using Ubuntu 16.04 x86_64 nvidia-370 (and just tried changing back to 367) I used nvidia-367 + CUDA kit 7 from repository and blender 2.77 until some weeks ago without any problem. I have a GTX 780. **Blender Version** Broken: blender 2.78 RC from ppa:thomas-schiex/blender (package "blender" but "blende-edge" looks like the same atm). No GPU rendering. Archive "blender-2.78-d0e7c7a-linux-glibc219-x86_64.tar.bz2" from blender.org : same thing 2.77a : same **Short description of error** I'm trying this because some people asked me if they could use their new GTX 1070 and 1080 with blender (they need CUDA 8). I installed CUDA kit 8 from Nvidia website, then opened Blender 3.78RC1 : no GPU render. **Exact steps for others to reproduce the error** Install CUDA 8 from developer.nvidia.com, open Blender. Go to Preferences → system : no GPU rendering

Jaufré Aligé commented

2016-09-09 23:42:07 +02:00

Changed status to: 'Open'

Jaufré Aligé commented

2016-09-09 23:42:07 +02:00

Added subscriber: @Jau

Bastien Montagne commented

2016-09-10 12:50:01 +02:00

Added subscriber: @mont29

Sergey Sharybin was assigned by Bastien Montagne

2016-09-10 12:50:01 +02:00

Bastien Montagne commented

2016-09-10 12:50:01 +02:00

Afaik Cuda 8 is only supported for newest GPU (10xx series), older one are expected to be used with Cuda 7 (8 one is slower on older GPUs iirc).

Anyway, will let guys knowing this area better decide about this report.

Afaik Cuda 8 is only supported for newest GPU (10xx series), older one are expected to be used with Cuda 7 (8 one is slower on older GPUs iirc). Anyway, will let guys knowing this area better decide about this report.

Sergey Sharybin commented

2016-09-10 19:17:58 +02:00

Please run blender with --debug-cycles command line argument, go to User Preferences System tab (to force Cycles to enumerate devices) and attach the log here.

Please run blender with `--debug-cycles` command line argument, go to `User Preferences` `System` tab (to force Cycles to enumerate devices) and attach the log here.

Jaufré Aligé commented

2016-09-10 22:20:32 +02:00

~$ blender --debug-cycles
I0910 22:17:55.253943 5681 blender_python.cpp:185] Debug flags initialized to:
CPU flags:

AVX2   : True
AVX    : True
SSE4.1 : True
SSE3   : True
SSE2   : True

CUDA flags:
Adaptive Compile: False
OpenCL flags:

Device type : ALL
Kernel type : DEFAULT
Debug       : False

I0910 22:18:13.403460 5681 device_cuda.cpp:1336] CUEW initialization succeeded
I0910 22:18:13.409051 5681 device_cuda.cpp:1347] Neither precompiled kernels nor CUDA compiler wad found, unable to use CUDA
I0910 22:18:13.409991 5681 device_opencl.cpp:3290] CLEW initialization succeeded.
I0910 22:18:13.424139 5681 device_opencl.cpp:278] Enumerating devices for platform NVIDIA CUDA.
I0910 22:18:13.424168 5681 device_opencl.cpp:346] Ignoring device GeForce GTX 780, not officially supported yet.

~$ blender --debug-cycles I0910 22:17:55.253943 5681 blender_python.cpp:185] Debug flags initialized to: CPU flags: ``` AVX2 : True AVX : True SSE4.1 : True SSE3 : True SSE2 : True ``` CUDA flags: Adaptive Compile: False OpenCL flags: ``` Device type : ALL Kernel type : DEFAULT Debug : False ``` I0910 22:18:13.403460 5681 device_cuda.cpp:1336] CUEW initialization succeeded I0910 22:18:13.409051 5681 device_cuda.cpp:1347] Neither precompiled kernels nor CUDA compiler wad found, unable to use CUDA I0910 22:18:13.409991 5681 device_opencl.cpp:3290] CLEW initialization succeeded. I0910 22:18:13.424139 5681 device_opencl.cpp:278] Enumerating devices for platform NVIDIA CUDA. I0910 22:18:13.424168 5681 device_opencl.cpp:346] Ignoring device GeForce GTX 780, not officially supported yet.

Sergey Sharybin commented

2016-09-10 22:44:44 +02:00

So the build you're using has no precompiled CUDA kernels. This is something what only your PPA maintainer can fix. Please report the issue to him.

However, builds from builder.b.o does have precompiled kernels, so it's not clear why they do not have GPU support for them. Please do the same --debug-cycles thing for our builds from builder.b.o

So the build you're using has no precompiled CUDA kernels. This is something what only your PPA maintainer can fix. Please report the issue to him. However, builds from builder.b.o does have precompiled kernels, so it's not clear why they do not have GPU support for them. Please do the same `--debug-cycles` thing for our builds from builder.b.o

Jaufré Aligé commented

2016-09-10 22:58:47 +02:00

This is crazy : I just downloaded the archive again and now :

output :
~/blender-2.78-d0e7c7a-linux-glibc219-x86_64$ ./blender --debug-cycles
found bundled python: /home/psychojau/blender-2.78-d0e7c7a-linux-glibc219-x86_64/2.78/python
I0910 22:49:42.788199 6135 blender_python.cpp:185] Debug flags initialized to:
CPU flags:

AVX2   : True
AVX    : True
SSE4.1 : True
SSE3   : True
SSE2   : True

CUDA flags:
Adaptive Compile: False
OpenCL flags:

Device type : ALL
Kernel type : DEFAULT
Debug       : False

I0910 22:49:50.333578 6135 device_cuda.cpp:1336] CUEW initialization succeeded
I0910 22:49:50.333597 6135 device_cuda.cpp:1338] Found precompiled kernels
I0910 22:49:50.342881 6135 device_opencl.cpp:3290] CLEW initialization succeeded.
I0910 22:49:50.344633 6135 device_opencl.cpp:278] Enumerating devices for platform NVIDIA CUDA.
I0910 22:49:50.344660 6135 device_opencl.cpp:346] Ignoring device GeForce GTX 780, not officially supported yet.

Looks like it's ok now.

This is crazy : I just downloaded the archive again and now : ![CUDA.png](https://archive.blender.org/developer/F357291/CUDA.png) output : ~/blender-2.78-d0e7c7a-linux-glibc219-x86_64$ ./blender --debug-cycles found bundled python: /home/psychojau/blender-2.78-d0e7c7a-linux-glibc219-x86_64/2.78/python I0910 22:49:42.788199 6135 blender_python.cpp:185] Debug flags initialized to: CPU flags: ``` AVX2 : True AVX : True SSE4.1 : True SSE3 : True SSE2 : True ``` CUDA flags: Adaptive Compile: False OpenCL flags: ``` Device type : ALL Kernel type : DEFAULT Debug : False ``` I0910 22:49:50.333578 6135 device_cuda.cpp:1336] CUEW initialization succeeded I0910 22:49:50.333597 6135 device_cuda.cpp:1338] Found precompiled kernels I0910 22:49:50.342881 6135 device_opencl.cpp:3290] CLEW initialization succeeded. I0910 22:49:50.344633 6135 device_opencl.cpp:278] Enumerating devices for platform NVIDIA CUDA. I0910 22:49:50.344660 6135 device_opencl.cpp:346] Ignoring device GeForce GTX 780, not officially supported yet. Looks like it's ok now.

Jaufré Aligé commented

2016-09-11 01:03:14 +02:00

Changed status from 'Open' to: 'Resolved'

Jaufré Aligé closed this issue

2016-09-11 01:03:14 +02:00

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no GPU render CUDA 8 Ubuntu 16.04 (was good with 7) #49311