參考自：https://gist.github.com/bearpaw/c38ef18ec45ba6548ec0

若需要cuDNN加速的童鞋，可以參考上面的網址安裝CUDA6.5

本步驟能實現用Intel核芯顯卡來進行顯示，用NVIDIA GPU進行計算。

1. 安裝開發所需的依賴包

安裝開發所需要的一些基本包

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> apt-get install build-essential  <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;"># basic requirement</span>
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libboost-all-dev libhdf5-serial-dev libgflags-dev libgoogle-glog-dev liblmdb-dev protobuf-compiler <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">#required by caffe</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

2. 安裝CUDA及驅動

2.1 準備工作

在關閉桌面管理 lightdm 的情況下安裝驅動似乎可以實現Intel 核芯顯卡來顯示 + NVIDIA 顯卡來計算。具體步驟如下：

首先在BIOS設置裏選擇用Intel顯卡來顯示或作爲主要顯示設備

進入Ubuntu，按 ctrl+alt+F1 進入tty，登錄tty後輸入如下命令

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> service lightdm stop</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

該命令會關閉lightdm。如果你使用 gdm或者其他的desktop manager, 請在安裝NVIDIA驅動前關閉他。

2.2 （貌似可以略過）安裝NVIDIA顯卡驅動

輸入下列命令添加驅動源

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">sudo add<span class="hljs-attribute" style="box-sizing: border-box;">-apt</span><span class="hljs-attribute" style="box-sizing: border-box;">-repository</span> ppa:xorg<span class="hljs-attribute" style="box-sizing: border-box;">-edgers</span>/ppa
sudo apt<span class="hljs-attribute" style="box-sizing: border-box;">-get</span> update</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

安裝346版驅動

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">sudo apt<span class="hljs-attribute" style="box-sizing: border-box;">-get</span> install nvidia<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">346</span> nvidia<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">346</span><span class="hljs-attribute" style="box-sizing: border-box;">-uvm</span> </code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

安裝完成後, 最好把下列包也一併安裝上 (否則以後可能會缺少文件)

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">sudo apt<span class="hljs-attribute" style="box-sizing: border-box;">-get</span> install nvidia<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">346</span><span class="hljs-attribute" style="box-sizing: border-box;">-dev</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

安裝完成後 reboot.

2.3 下載deb包及安裝CUDA

使用deb包安裝CUDA及驅動能省去很多麻煩(參見CUDA Starting Guide)。下載對應於你系統的CUDA deb包,
我下載的是7.0版的，需要先註冊才能獲得RC版下載權限。
我下載的是deb包，
先雙擊後在Ubuntu Software Center裏點install。
或用下列命令添加軟件源

<code class="language-sh hljs xml has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> sudo dpkg -i cuda-repo-<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">distro</span>></span>_<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">version</span>></span>_<span class="hljs-tag" style="color: rgb(0, 102, 102); box-sizing: border-box;"><<span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 0, 136);">architecture</span>></span>.deb
 sudo apt-get update</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

然後在終端中用下列命令安裝CUDA

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> apt-get install cuda</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

安裝完成後重啓電腦.

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> reboot</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

2.4 安裝cuDNN

由於還沒有出配合CUDA7.0的cuDNN下載，所以暫時不安裝cuDNN，以免發生不知名錯誤。

2.5 設置環境變量

安裝完成後需要在/etc/profile中添加環境變量, 在文件最後添加:

<code class="language-sh hljs ruby has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-constant" style="box-sizing: border-box;">PATH</span>=<span class="hljs-regexp" style="color: rgb(0, 136, 0); box-sizing: border-box;">/usr/local</span><span class="hljs-regexp" style="color: rgb(0, 136, 0); box-sizing: border-box;">/cuda/bin</span><span class="hljs-symbol" style="color: rgb(0, 102, 102); box-sizing: border-box;">:</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$PATH</span>
export <span class="hljs-constant" style="box-sizing: border-box;">PATH</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

保存後, 執行下列命令, 使環境變量立即生效

<code class="hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">source</span> /etc/profile</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

同時需要添加lib庫路徑：在 /etc/ld.so.conf.d/加入文件 cuda.conf, 內容如下

<code class="language-sh hljs lua has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">/usr/<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">local</span>/cuda/lib64</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

保存後，執行下列命令使之立刻生效

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> ldconfig</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

3. 安裝CUDA SAMPLE

進入/usr/local/cuda/samples, 執行下列命令來build samples

<code class="language-sh hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">sudo make <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">all</span> <span class="hljs-attribute" style="box-sizing: border-box;">-j8</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

整個過程大概10分鐘左右, 全部編譯完成後，進入 samples/bin/x86_64/linux/release, 運行deviceQuery

<code class="language-sh hljs  has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">./deviceQuery</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

如果出現顯卡信息，則驅動及顯卡安裝成功：

<code class="hljs livecodeserver has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">./deviceQuery Starting...

 CUDA Device Query (Runtime API) <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">version</span> (CUDART static linking)

Detected <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span> CUDA Capable device(s)

Device <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"GeForce GTX 980"</span>
  CUDA Driver Version / Runtime Version          <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7.0</span> / <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7.0</span>
  CUDA Capability Major/Minor <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">version</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">number</span>:    <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">5.2</span>
  Total amount <span class="hljs-operator" style="box-sizing: border-box;">of</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">global</span> memory:                 <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span> MBytes (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4294770688</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>)
  (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">16</span>) Multiprocessors, (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">128</span>) CUDA Cores/MP:     <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2048</span> CUDA Cores
  GPU Clock rate:                                <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1329</span> MHz (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.33</span> GHz)
  Memory Clock rate:                             <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3505</span> Mhz
  Memory Bus Width:                              <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">256</span>-bit
  L2 Cache Size:                                 <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2097152</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>
  Maximum Texture Dimension Size (x,y,z)         <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>D=(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65536</span>), <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>D=(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65536</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65536</span>), <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3</span>D=(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4096</span>)
  Maximum Layered <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>D Texture Size, (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">num</span>) layers  <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>D=(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">16384</span>), <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2048</span> layers
  Maximum Layered <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>D Texture Size, (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">num</span>) layers  <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>D=(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">16384</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">16384</span>), <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2048</span> layers
  Total amount <span class="hljs-operator" style="box-sizing: border-box;">of</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">constant</span> memory:               <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65536</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>
  Total amount <span class="hljs-operator" style="box-sizing: border-box;">of</span> shared memory per block:       <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">49152</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>
  Total <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">number</span> <span class="hljs-operator" style="box-sizing: border-box;">of</span> registers available per block: <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65536</span>
  Warp size:                                     <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">32</span>
  Maximum <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">number</span> <span class="hljs-operator" style="box-sizing: border-box;">of</span> threads per multiprocessor:  <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2048</span>
  Maximum <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">number</span> <span class="hljs-operator" style="box-sizing: border-box;">of</span> threads per block:           <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1024</span>
  Max dimension size <span class="hljs-operator" style="box-sizing: border-box;">of</span> <span class="hljs-operator" style="box-sizing: border-box;">a</span> thread block (x,y,z): (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1024</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1024</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">64</span>)
  Max dimension size <span class="hljs-operator" style="box-sizing: border-box;">of</span> <span class="hljs-operator" style="box-sizing: border-box;">a</span> grid size    (x,y,z): (<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2147483647</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65535</span>, <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">65535</span>)
  Maximum memory pitch:                          <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2147483647</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>
  Texture alignment:                             <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">512</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bytes</span>
  Concurrent copy <span class="hljs-operator" style="box-sizing: border-box;">and</span> kernel execution:          Yes <span class="hljs-operator" style="box-sizing: border-box;">with</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span> copy engine(s)
  Run <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">time</span> limit <span class="hljs-command" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">on</span> <span class="hljs-title" style="box-sizing: border-box;">kernels</span>:                     <span class="hljs-title" style="box-sizing: border-box;">Yes</span></span>
  Integrated GPU sharing Host Memory:            No
  Support host page-locked memory mapping:       Yes
  Alignment requirement <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> Surfaces:            Yes
  Device has ECC support:                        Disabled
  Device supports Unified Addressing (UVA):      Yes
  Device PCI Domain ID / Bus ID / location ID:   <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span> / <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span> / <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>
  Compute Mode:
     < Default (multiple host threads can use ::cudaSetDevice() <span class="hljs-operator" style="box-sizing: border-box;">with</span> device simultaneously) >

deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7.0</span>, CUDA Runtime Version = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7.0</span>, NumDevs = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>, Device0 = GeForce GTX <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">980</span>
Result = PASS
</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li></ul>

4. 安裝openBLAS 或 Intel MKL 或 Atlas

A.如果圖省事兒，可以用下列命令安裝免費的atlas

<code class="language-sh hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">sudo apt<span class="hljs-attribute" style="box-sizing: border-box;">-get</span> install libatlas<span class="hljs-attribute" style="box-sizing: border-box;">-base</span><span class="hljs-attribute" style="box-sizing: border-box;">-dev</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

B.（不推薦。。caffe總是找不到include和lib）我安裝的是openBLAS，首先下載openBLAS
網址：http://www.openblas.net/
網頁右上角或最下面下載tar文件，如：

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">xianyi<span class="hljs-attribute" style="box-sizing: border-box;">-OpenBLAS</span><span class="hljs-attribute" style="box-sizing: border-box;">-v0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.13</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span><span class="hljs-attribute" style="box-sizing: border-box;">-g51ce5ef</span><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>tar<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>gz</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

隨後解壓縮，在終端中輸入：

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">tar <span class="hljs-attribute" style="box-sizing: border-box;">-xzvf</span> xianyi<span class="hljs-attribute" style="box-sizing: border-box;">-OpenBLAS</span><span class="hljs-attribute" style="box-sizing: border-box;">-v0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.13</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span><span class="hljs-attribute" style="box-sizing: border-box;">-g51ce5ef</span><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>tar<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">.</span>gz</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

編譯

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">cd xianyi<span class="hljs-attribute" style="box-sizing: border-box;">-OpenBLAS</span><span class="hljs-attribute" style="box-sizing: border-box;">-v0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.13</span><span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">-</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span><span class="hljs-attribute" style="box-sizing: border-box;">-g51ce5ef</span>
make <span class="hljs-attribute" style="box-sizing: border-box;">-j8</span>
sudo make PREFIX<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">=</span>/opt/OpenBLAS install</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

openBLAS就安裝到/opt/OpenBLAS了。

C.如果有mkl安裝包，首先解壓安裝包，下面有一個install_GUI.sh文件，執行該文件，會出現圖形安裝界面，根據說明一步一步執行即可。

注意：安裝完成後需要添加library路徑, 創建/etc/ld.so.conf.d/intel_mkl.conf文件，在文件中添加內容

<code class="hljs vbnet has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">/opt/intel/<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">lib</span>
/opt/intel/mkl/<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">lib</span>/intel64</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

注意把路徑替換成自己的安裝路徑。編輯完後執行

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> ldconfig</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

5. 安裝OpenCV

雖然我們已經安裝了libopencv-dev, 但該庫似乎會導致libtiff的相關問題, 所以我們需要從源代碼build 自己的版本。這個儘量不要手動安裝， Github上有人已經寫好了完整的安裝腳本, 能自動安裝所有dependencies.

下載該腳本，進入Ubuntu/2.4 目錄, 給所有shell腳本加上可執行權限

<code class="language-sh hljs perl has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">chmod</span> +<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">x</span> <span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">*.</span>sh</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

修改腳本opencv2_4_X.sh, 在cmake中加入參數

<code class="hljs lasso has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-attribute" style="box-sizing: border-box;">-D</span> BUILD_TIFF<span class="hljs-subst" style="color: rgb(0, 0, 0); box-sizing: border-box;">=</span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">ON</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

然後安裝（當前爲2.4.9）

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> ./opencv2_4_9.sh</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

腳本會自動安裝依賴項，下載安裝包，編譯並安裝OpenCV。整個過程大概半小時左右。

注意，安裝2.4.9時中途可能會報錯

<code class="hljs vbnet has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">opencv-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.4</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.9</span>/modules/gpu/src/nvidia/core/NCVPixelOperations.hpp(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">51</span>): <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">error</span>: a storage <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> allowed <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> an <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">explicit</span> specialization</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

解決方法在此下載 NCVPixelOperations.hpp，替換掉opencv2.4.9內的文件， *並註釋掉opencv2_4_9.sh中下載opencv包的代碼, 重新執行sudo ./opencv2_4_9.sh`.

還有可能報另外一個錯

<code class="hljs profile has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-filename" style="box-sizing: border-box;">_compile_generated_gpu_mat.cu.obj
nvcc fatal </span>: Unsupported gpu architecture <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'compute_11'</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

解決方法爲
在上面cuda測試的時候顯示的CUDA Capability Major/Minor version number: 5.2或者到nvidia官網https://developer.nvidia.com/cuda-gpus#collapse2 找到自己顯卡的Compute Capability，
修改腳本opencv2_4_X.sh, 在cmake中加入參數

<code class="hljs haml has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> -<span class="ruby" style="box-sizing: border-box;"><span class="hljs-constant" style="box-sizing: border-box;">D</span> <span class="hljs-constant" style="box-sizing: border-box;">CUDA_ARCH_BIN</span>=<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"5.2"</span></span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

（我顯卡的Compute Capability是5.2）
聽說提前設定好CUDA_ARCH_BIN還會給編譯過程加速。

6. 安裝Caffe所需要的Python環境

6.1 安裝anaconda包

在此下載最新的安裝包, 用默認設置安裝在用戶目錄下。

6.2 安裝python依賴庫

打開新的終端, 用which python和which pip確定使用的是anaconda提供的python環境，然後進入caffe_root/python, 執行下列命令

<code class="hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> req <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> $(cat requirements.txt); <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">do</span> pip install <span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$req</span>; <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">done</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

6.3 修正Anaconda存在的bug

加入在編譯或者運行caffe時遇到這樣的錯誤

<code class="hljs vbnet has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">/usr/<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">lib</span>/x86_64-linux-gnu/libx264.so<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.142</span>:undefined reference <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">to</span> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">' </span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

那麼請刪除掉anaconda/lib中的libm.*. 參考this issue

6.4 添加Anaconda Library Path

這裏需要注意，在運行Caffe時，可能會報一些找不到libxxx.so的錯誤，而用 locate libxxx.so命令發現已經安裝在anaconda中，這時首先想到的是在/etc/ld.so.conf.d/ 下面將 your_anaconda_path/lib 加入 LD_LIBRARY_PATH中。但是這樣做可能導致登出後無法再進入桌面！！！原因（猜測）可能是anaconda的lib中有些內容於系統自帶的lib產生衝突。

正確的做法是：爲了不讓系統在啓動時就將anaconda/lib加入系統庫目錄，可以在用戶自己的~/.bashrc 中添加library path，比如我就在最後添加了兩行

<code class="hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;"># add library path</span>
LD_LIBRARY_PATH=your_anaconda_path/lib:<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$LD_LIBRARY_PATH</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">export</span> LD_LIBRARY_PATH</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

開啓另一個終端後即生效，並且重啓後能夠順利加載lightdm, 進入桌面環境。

7. 安裝MATLAB

Caffe提供了MATLAB接口，有需要用MATLAB的同學可以額外安裝MATLAB。安裝教程請自行搜索。

安裝完成後添加圖標

<code class="language-sh hljs bash has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> vi /usr/share/applications/Matlab.desktop</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

輸入以下內容

<code class="hljs ini has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 102, 102);">[Desktop Entry]</span>
<span class="hljs-setting" style="box-sizing: border-box;">Type=<span class="hljs-value" style="box-sizing: border-box;">Application</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Name=<span class="hljs-value" style="box-sizing: border-box;">Matlab</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">GenericName=<span class="hljs-value" style="box-sizing: border-box;">Matlab R2014b</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Comment=<span class="hljs-value" style="box-sizing: border-box;">Matlab:The Language of Technical Computing</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Exec=<span class="hljs-value" style="box-sizing: border-box;">sh /usr/local/MATLAB/R2014b/bin/matlab -desktop</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Icon=<span class="hljs-value" style="box-sizing: border-box;">/usr/local/MATLAB/Matlab.png</span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Terminal=<span class="hljs-value" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">false</span></span></span>
<span class="hljs-setting" style="box-sizing: border-box;">Categories=<span class="hljs-value" style="box-sizing: border-box;">Development;Matlab;</span></span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li></ul>

(I use the R2013b patched package. First you should uncompress the .iso file. Then use sudo cp to copy the patch file)

8. 編譯Caffe

8.1 編譯主程序

終於完成了所有環境的配置，可以愉快的編譯Caffe了！進入caffe根目錄，首先複製一份Makefile.config, 然後修改裏面的內容，主要需要修改的參數包括

我的Makefile.config內容如下

<code class="hljs makefile has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-constant" style="box-sizing: border-box;">CUDA_DIR</span> := /usr/local/cuda
<span class="hljs-constant" style="box-sizing: border-box;">CUDA_ARCH</span> := -gencode arch=compute_20,code=sm_20 \
        -gencode arch=compute_20,code=sm_21 \
        -gencode arch=compute_30,code=sm_30 \
        -gencode arch=compute_35,code=sm_35 \
        -gencode arch=compute_50,code=sm_50 \
        -gencode arch=compute_50,code=compute_50


<span class="hljs-constant" style="box-sizing: border-box;">BLAS</span> := open
<span class="hljs-constant" style="box-sizing: border-box;">BLAS_INCLUDE</span> := /opt/OpenBLAS/include
<span class="hljs-constant" style="box-sizing: border-box;">BLAS_LIB</span> := /opt/OpenBLAS/lib

<span class="hljs-constant" style="box-sizing: border-box;">MATLAB_DIR</span> := /usr/local/MATLAB/R2014b/

<span class="hljs-constant" style="box-sizing: border-box;">PYTHON_INCLUDE</span> := /usr/include/python2.7 \
        /usr/lib/python2.7/dist-packages/numpy/core/include
<span class="hljs-constant" style="box-sizing: border-box;">PYTHON_LIB</span> := /usr/lib
<span class="hljs-constant" style="box-sizing: border-box;">INCLUDE_DIRS</span> := <span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$(PYTHON_INCLUDE)</span> /usr/local/include
<span class="hljs-constant" style="box-sizing: border-box;">LIBRARY_DIRS</span> := <span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">$(PYTHON_LIB)</span> /usr/local/lib /usr/lib

<span class="hljs-constant" style="box-sizing: border-box;">BUILD_DIR</span> := build
<span class="hljs-constant" style="box-sizing: border-box;">DISTRIBUTE_DIR</span> := distribute

<span class="hljs-constant" style="box-sizing: border-box;">TEST_GPUID</span> := 0
</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li></ul>

CPU_ONLY 是否只使用CPU模式，沒有GPU沒安裝CUDA的同學可以打開這個選項
BLAS (使用intel mkl還是atlas)
MATLAB_DIR 如果需要使用MATLAB wrapper的同學需要指定matlab的安裝路徑, 如我的路徑爲 /usr/local/MATLAB/R2013b (注意該目錄下需要包含bin文件夾，bin文件夾裏應該包含mex二進制程序)
DEBUG 是否使用debug模式，打開此選項則可以在eclipse或者NSight中debug程序
具體設置可以參考Caffe根目錄下原有的Makefile.config

完成設置後，開始編譯

<code class="language-sh hljs go has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">make</span> all -j4
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">make</span> test
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">make</span> runtest</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

注意 -j4 是指使用幾個線程來同時編譯，可以加快速度， j後面的數字可以根據CPU core的個數來決定，我的CPU使4核，所以-j4.

8.2 編譯Matlab wrapper

執行如下命令

<code class="hljs go has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">make</span> matcaffe</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

然後就可以跑官方的matlab demo啦。

8.3 編譯Python wrapper

<code class="hljs go has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">make</span> pycaffe </code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

然後基本就全部安裝完拉.

接下來大家盡情地跑demo吧～

Ubuntu14.04 +caffe+cuda 7.0