C++ version

The compilation of Antares-Xpansion requires C++20.

mpicxx is used to build some executable with MPI support. mpicxx relly on /usr/bin/c++ on linux to compile the code. Please be sure that /usr/bin/c++ is a C++20 compiler or link to one. If it is not the case you will get error linking to tbb : fatal error: tbb/blocked_range.h

=== "Windows"

Compilation is tested on Visual Studio 17 2022.

=== "Centos" :warning: CentOS is considered EoL (end of life) and is not supported anymore. We recommend using a more recent distribution like Oracle Linux 8

By default, GCC version of Centos7 is 4.8.5. Some external repositories must be enabled:

=== "Centos 7 (EPEL)"    
    ``` 
    sudo yum install epel-release
    sudo yum install centos-release-scl
    ```

You can then use a more recent version of GCC by enabling `devtoolset-10`:
```
sudo yum install devtoolset-10
```

Before compiling Antares-Xpansion, we must launch a new shell with `scl` tool :
```
scl enable devtoolset-10 bash
```

=== "Ubuntu"

```
sudo apt install build-essential gcc10 g++10
```

CMake version

CMake 3.x must be used.

=== "Windows"

You can download latest Windows version directly from [CMake website](https://cmake.org/download/).

=== "Centos"

```
sudo yum install epel-release
sudo yum install cmake3
```

Or python -m pip install cmake

=== "Ubuntu"

```
sudo apt install cmake
```

Or

python -m pip install cmake

Python version

Python 3.x must be used.

=== "Windows"

You can download latest Windows version directly from [Python website](https://www.python.org/downloads/windows/).

=== "Centos"

```
sudo yum install python3 python3-pip
```

=== "Ubuntu"

```
sudo apt-get install python3 python3-pip
```

Required python modules can be installed with:

pip install -r requirements-tests.txt

Git version

Git version must be above 2.15 for external dependencies build because --ignore-whitespace is not used by default and we have an issue with OR-Tools compilation of ZLib and application of patch on Windows (see https://github.com/google/or-tools/issues/1193).

=== "Windows"

You can download latest Windows version directly from [Git website](https://gitforwindows.org/).

=== "Centos"

```
sudo yum install rh-git227-git
sudo yum install git
```

Sometimes we need a 2.x version of git. To enable to git 2.27:
```
source /opt/rh/rh-git227/enable
```

=== "Ubuntu"

```
sudo apt-get install git
```

Now you can clone the repository:

git clone https://github.com/AntaresSimulatorTeam/antares-xpansion.git

Most of the rest of the guide will assume that you are in the root directory of the repository.