Compile on Windows from Source Code¶

This instruction will show you how to compile PaddlePaddle on a 64-bit desktop or laptop and Windows 10. The Windows systems we support must meet the following requirements:

Windows 10 Professional Edition / Enterprise Edition
Visual Studio 2015 Update3

Choose a compilation method¶

We provide one compilation method under the Windows system:

Direct source code compilation

Since the situation on host machine is more complicated, we only support specific systems.

Please note: The current version does not support NCCL and distributed related functions.

Local compilation¶

Please strictly follow the following instructions step by step

Check that your computer and operating system meet our supported compilation standards
- Windows 10 Professional Edition / Enterprise Edition
- Visual Studio 2015 Update3
Install the necessary tools i.e. cmake, git and python :

Cmake requires version 3.0 and above, which can be downloaded from the official website and added to the environment variable. Download here.

Git can be downloaded on the official website and added to the environment variable. Download here.

Python requires version 2.7 and above, and ensure that modules such as numpy, protobuf, wheel are installed. Download here.
```
 * To Install numpy package you can use command `pip install numpy` or command `pip3 install numpy`

 * To Install protobuf package you can use command `pip install protobuf` or command `pip3 install protobuf`

 * To Install Wheel package you can use command `pip install wheel` or `pip3 install wheel`
```
Clone the PaddlePaddle source in the Paddle folder in the current directory and go to the Paddle directory:
- git clone https://github.com/PaddlePaddle/Paddle.git
- cd Paddle
Switch to a more stable release branch for compilation :
- git checkout release/1.5
Create a directory called build and enter it:
- mkdir build
- cd build
Execute cmake:

For details on the compilation options, see the compilation options list.
- For users who need to compile the CPU version PaddlePaddle:
  
  For Python2:cmake .. -G "Visual Studio 14 2015 Win64" -DPYTHON_INCLUDE_DIR = $ {PYTHON_INCLUDE_DIRS} -DPYTHON_LIBRARY = $ {PYTHON_LIBRARY} -DPYTHON_EXECUTABLE = $ {PYTHON_EXECUTABLE} -DWITH_FLUID_ONLY = ON -DWITH_GPU = OFF -DWITH_TESTING = OFF -DCMAKE_BUILD_TYPE =Release
  
  For Python3: cmake .. -G "Visual Studio 14 2015 Win64" -DPY_VERSION = 3.5 -DPYTHON_INCLUDE_DIR = $ {PYTHON_INCLUDE_DIRS} -DPYTHON_LIBRARY = $ {PYTHON_LIBRARY} -DPYTHON_EXECUTABLE = $ {PYTHON_EXECUTABLE} -DWITH_FLUID_ONLY = ON -DWITH_GPU = OFF -DWITH_TESTING =OFF -DCMAKE_BUILD_TYPE=Release
Some third-party dependencies (openblas, snappystream) currently require users to provide pre-compiled versions, or download pre-compiled files from https://github.com/wopeizl/Paddle_deps and place the entire third_party folder in the build directory.
Use Blend for Visual Studio 2015 to open paddle.sln file, select the platform x64, configure with Release, then begin to compile
Having compiled successfully, go to the \paddle\build\python\distdirectory and find the generated .whl package:

cd \paddle\build\python\dist
Install the compiled .whl package on the current machine or target machine:

pip install (whl package name) or pip3 install (whl package name)

Congratulations, now you have completed the process of compiling PaddlePaddle natively.

Verify installation¶

After the installation is complete, you can use: python to enter the Python interpreter and then use import paddle.fluid. If there is no error prompted, the installation is successful.

How to uninstall¶

Please use the following command to uninstall PaddlePaddle:

CPU version of PaddlePaddle : pip uninstall paddlepaddle or pip3 uninstall paddlepaddle
GPU version of PaddlePaddle : pip uninstall paddlepaddle-gpu or pip3 uninstall paddlepaddle-gpu