PhotoScan isn't recognizing my nVidia GPU (GeForce GTX 970), despite my attempts to resolve this noted below. Can anyone with similar experience say what works for them?
I believe the functional flow for OpenCL should be:
PhotoScan -> libOpenCL.so -> libnvidia-opencl.so.1 -> kernel driver module(s) -> GPU (GeForce GTX 970). Do I have that right?
- After installing and licensing PhotoScan, I noted no OpenCL message in the start-up messages, and no devices in the PhotoScan's Tools:Preferences:OpenCL Devices.
- I saw that I didn't have a `libOpenCL.so` library in the binary folder. I gather from this post (
http://www.agisoft.com/forum/index.php?topic=2369.msg13742#msg13742) that I should. I made a symbolic link to `libOpenCL.so.1` as follows:
sudo ln -s /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 ~/photoscan/libOpenCL.so
PhotoScan then showed "
clGetPlatformID failed" on launch.
- Thinking that NVidia CUDA/OpenCL support was to blame, I upgraded to CUDA 7.5 and received a 'pass' after running `devideQuery` (see below), but I still see no OpenCL devices in PhotoScan.
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "GeForce GTX 970"
CUDA Driver Version / Runtime Version 7.5 / 7.5
CUDA Capability Major/Minor version number: 5.2
Total amount of global memory: 4095 MBytes (4294246400 bytes)
(13) Multiprocessors, (128) CUDA Cores/MP: 1664 CUDA Cores
GPU Max Clock rate: 1367 MHz (1.37 GHz)
Memory Clock rate: 3505 Mhz
Memory Bus Width: 256-bit
L2 Cache Size: 1835008 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 2 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 / 4 / 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 970
Result = PASS
Topic: "clGetPlatformID failed" on Kubuntu 15.04 (Read 6656 times)
