问题
when I want to make nvEncodeApp NVENC SDK sample on centos 6.4 I got this error :
/usr/bin/ld: cannot find -lnvidia-encode
when I checked Make file the path to this library was here :
-L/usr/lib64 -lnvidia-encode -ldl
I checked /usr/lib64 but there is not any libnvidia-encode there:
how this library will add to this path ,whats this library ?
Using nvidia-smi should tell you that:
nvidia-smi
Tue Jul 16 20:19:20 2013
+------------------------------------------------------+
| NVIDIA-SMI 4.304.54 Driver Version: 304.54 |
|-------------------------------+----------------------+----------------------+
| GPU Name | Bus-Id Disp. | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 VGX K1 | 0000:85:00.0 Off | N/A |
| N/A 31C P0 13W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 1 VGX K1 | 0000:86:00.0 Off | N/A |
| N/A 39C P0 13W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 2 VGX K1 | 0000:87:00.0 Off | N/A |
| N/A 54C P0 14W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 3 VGX K1 | 0000:88:00.0 Off | N/A |
| N/A 48C P0 14W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 4 VGX K1 | 0000:8B:00.0 Off | N/A |
| N/A 31C P0 13W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 5 VGX K1 | 0000:8C:00.0 Off | N/A |
| N/A 40C P0 14W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 6 VGX K1 | 0000:8D:00.0 Off | N/A |
| N/A 59C P0 15W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 7 VGX K1 | 0000:8E:00.0 Off | N/A |
| N/A 60C P0 14W / 31W | 0% 8MB / 4095MB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=============================================================================|
| No running compute processes found |
+-----------------------------------------------------------------------------+
回答1:
The readme files in the SDK indicate that an R319 or newer driver is required. Your 304.54 driver as indicated by nvidia-smi is almost a year old and does not meet the requirement. Please update to the latest linux driver for your VGX K1 GPUs here and try again.
回答2:
In my case I had to create a symlink from /usr/lib/nvidia-367/ to /usr/lib/x86_64-linux-gnu/
sudo ln -sv /usr/lib/nvidia-367/libnvidia-encode.so /usr/lib/x86_64-linux-gnu/libnvidia-encode.so
来源：https://stackoverflow.com/questions/17684297/running-nvenc-sdk-sample-get-error-because-there-is-not-libnvidia-encode