Linux version 4.2.8-200.fc22.x86_64 (mockbuild@bkernel02.phx2.fedoraproject.org) (gcc version 5.3.1 20151207 (Red Hat 5.3.1-2) (GCC) ) #1 SMP Tue Dec 15 16:50:23 UTC 2015
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2)
blender-2.76-5.fc22.x86_64
NVIDIA running through bumblebee, blender run A) raw, B) through optirun, and C) through primusrun
I0127 23:08:51.816676 15844 device_cuda.cpp:1084] CUEW initialization succeeded
I0127 23:08:51.817201 15844 device_cuda.cpp:1091] Found CUDA compiled /usr/local/cuda/bin/nvcc
I0127 23:08:51.820109 15844 device_opencl.cpp:3617] CLEW initialization succeeded.
I0127 23:08:51.843158 15844 device_opencl.cpp:274] Enumerating devices for platform Clover.
I0127 23:08:51.843276 15844 device_opencl.cpp:288] Ignoring platform Clover, failed to fetch number of devices.
I0127 23:08:51.843291 15844 device_opencl.cpp:274] Enumerating devices for platform NVIDIA CUDA.
I0127 23:08:51.843339 15844 device_opencl.cpp:342] Ignoting device GeForce GTX 860M, not officially supported yet.
trying to save userpref at /home/meme/.config/blender/2.76/config/userpref.blend ok
Except for, of course, the 860M is a CUDA-supported card:
https://developer.nvidia.com/cuda-gpus
A fact confirmed by running deviceQuery:
[root@fwiffo deviceQuery]# optirun ./deviceQuery
./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "GeForce GTX 860M"
CUDA Driver Version / Runtime Version 7.5 / 7.5
CUDA Capability Major/Minor version number: 5.0
Total amount of global memory: 2048 MBytes (2147352576 bytes)
( 5) Multiprocessors, (128) CUDA Cores/MP: 640 CUDA Cores
GPU Max Clock rate: 1020 MHz (1.02 GHz)
Memory Clock rate: 2505 Mhz
Memory Bus Width: 128-bit
L2 Cache Size: 2097152 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096)
Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total number of registers available per block: 65536
Warp size: 32
Maximum number of threads per multiprocessor: 2048
Maximum number of threads per block: 1024
Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535)
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 1 copy engine(s)
Run time limit on kernels: Yes
Integrated GPU sharing Host Memory: No
Support host page-locked memory mapping: Yes
Alignment requirement for Surfaces: Yes
Device has ECC support: Disabled
Device supports Unified Addressing (UVA): Yes
Device PCI Domain ID / Bus ID / location ID: 0 / 1 / 0
Compute Mode:
< Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 7.5, CUDA Runtime Version = 7.5, NumDevs = 1, Device0 = GeForce GTX 860M
Result = PASS
Strangely, despite Blender telling me that CUDA is unusable, it still lets me turn it on and select my card. But I see no performance difference.
Bare minimum, you should probably change "Ignoting" to "Ignoring" :) A different typo was present in one of my earlier error messages I got (which I'm no longer getting), too: "wad" instead of "was", back when it couldn't find nvcc.
Thanks for whatever help you can offer! I'll run any tests that you want.