在（最终）在 14.04 上安装了 cuda 之后，在没有破坏我的 nvidia 驱动程序的情况下，我尝试验证安装。
首先我必须安装 nvcc，
sudo apt-get install nvidia-cuda-toolkit
设置环境
export PATH=/usr/local/cuda-7.5/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64:$LD_LIBRARY_PATH
安装示例
cuda-install-samples-7.5.sh ~
cd ~/NVIDIA_CUDA-Samples_7.5/0_Simple/vectorAdd
make
./vectorAdd
但是对于最后一个命令我收到此错误：
CUDA driver version is insufficient for CUDA runtime version
一些输出，
lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation Core Processor
Integrated Graphics Controller (rev 18) Subsystem: Dell Device 044f
Kernel driver in use: i915
-- 01:00.0 VGA compatible controller: NVIDIA Corporation GT216M
[GeForce GT 330M] (rev a2) Subsystem: Dell Device 044f
Kernel driver in use: nvidia
nvidia-smi
+------------------------------------------------------+
| NVIDIA-SMI 340.96 Driver Version: 340.96 |
|------------------------------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
+------------------------------------------------------+
| NVIDIA-SMI 340.96 Driver Version: 340.96 |
| --------------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M.
| |=====================================+======================+======================| |
0 GeForce GT 330M Off | 0000:01:00.0 N/A | N/A | | N/A 69C P12 N/A / N/A | 423MiB / 1023MiB | N/A Default
| +-------------------------------+---------------------+-----------------------+ |
Compute processes: GPU Memory | | GPU PID Process name Usage
| |=============================================================================| |
0 Not Supported
| +-----------------------------------------------------------------------------+ |
并且 nvcc -V 给出，
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2013 NVIDIA Corporation
Built on Wed_Jul_17_18:36:13_PDT_2013
Cuda compilation tools, release 5.5, V5.5.0
dpkg -l | grep -i nvidia
ii bbswitch-dkms 0.7-2ubuntu1 amd64 Interface for toggling the power on nVidia Optimus video cards
ii libcublas5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA BLAS runtime library
rc libcuda1-304 304.131-0ubuntu0.14.04.1 amd64 NVIDIA CUDA runtime library
rc libcuda1-304-updates 304.131-0ubuntu0.14.04.1 amd64 NVIDIA CUDA runtime library
ii libcuda1-340 340.96-0ubuntu0.14.04.1 amd64 NVIDIA CUDA runtime library
rc libcuda1-340-updates 340.96-0ubuntu0.14.04.1 amd64 NVIDIA CUDA runtime library
rc libcuda1-352-updates 352.63-0ubuntu0.14.04.1 amd64 NVIDIA CUDA runtime library
ii libcudart5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA runtime library
ii libcufft5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA FFT runtime library
ii libcufftw5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA FFTW runtime library
ii libcuinj64-5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA INJ runtime library (64-bit)
ii libcurand5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA Random Numbers Generation runtime library
ii libcusparse5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA Sparse Matrix runtime library
ii libnppc5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA Performance Primitives core runtime library
ii libnppi5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA Performance Primitives for image processing runtime library
ii libnpps5.5:amd64 5.5.22-3ubuntu1 amd64 NVIDIA Performance Primitives for signal processing runtime library
ii libnvtoolsext1:amd64 5.5.22-3ubuntu1 amd64 NVIDIA Tools Extension
ii libnvvm2:amd64 5.5.22-3ubuntu1 amd64 NVIDIA CUDA Compiler NVVM runtime library
ii nvidia-340 340.96-0ubuntu0.14.04.1 amd64 NVIDIA binary driver - version 340.96
ii nvidia-340-uvm 340.96-0ubuntu0.14.04.1 amd64 Transitional package for nvidia-340
ii nvidia-cuda-dev 5.5.22-3ubuntu1 amd64 NVIDIA CUDA development files
ii nvidia-cuda-doc 5.5.22-3ubuntu1 all NVIDIA CUDA and OpenCL documentation
ii nvidia-cuda-gdb 5.5.22-3ubuntu1 amd64 NVIDIA CUDA GDB
ii nvidia-cuda-toolkit 5.5.22-3ubuntu1 amd64 NVIDIA CUDA toolkit
ii nvidia-libopencl1-331 340.96-0ubuntu0.14.04.1 amd64 Transitional package for nvidia-libopencl1-340
ii nvidia-libopencl1-340 340.96-0ubuntu0.14.04.1 amd64 NVIDIA OpenCL Driver and ICD Loader library
ii nvidia-opencl-dev:amd64 5.5.22-3ubuntu1 amd64 NVIDIA OpenCL development files
ii nvidia-opencl-icd-340 340.96-0ubuntu0.14.04.1 amd64 NVIDIA OpenCL ICD
ii nvidia-prime 0.6.2 amd64 Tools to enable NVIDIA's Prime
ii nvidia-profiler 5.5.22-3ubuntu1 amd64 NVIDIA Profiler for CUDA and OpenCL
ii nvidia-settings 352.93-0ubuntu1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-visual-profiler 5.5.22-3ubuntu1 amd64 NVIDIA Visual Profiler
这是否意味着我需要的是 cuda v5.5 而不是 v7.5？我需要重新启动并卸载 v7.5 并安装 v5.5？