Installation - hyschive/gamer-fork GitHub Wiki

Set up the machine configuration file

Please see Machine Configuration File.

Set your machine configuration file as default

sh tool/config/set_settings.sh --local --machine=your_machine

Note

If you want to set the default machine configuration file for all GAMER copies under your user account, use the --global option instead of --local. You can still override the global setting for individual GAMER copies using the --local option. Furthermore, you can override the default setting by passing the --machine=your_machine when executing configure.py.

Go to the source directory
```
cd src
```
Generate Makefile using the Python script configure.py

To get the Makefile, please execute the following command:
```
python configure.py [--your_arguments]
```
[--your_arguments] represent the options that should align with your simulation requirements. Refer to Option List for a complete list of available options.

For example, the following command sets the FFTW method to FFTW2 and enables gravity and GPU.
```
python configure.py --fftw=FFTW2 --gravity=true --gpu=true
```

Tip

An example script generate_make.sh to generate Makefile can be found in each test problem folder, e.g., example/test_problem/Hydro/AcousticWave/generate_make.sh.

Compile the code
```
make clean
make
```
If the compilation succeeds, you will see the following message
```
Compiling GAMER --> Successful!
```
and get an executable gamer, which will be automatically copied to ../bin/gamer.

Tip

To reduce the compilation time, you can perform a parallel compilation by make -j N, where N is the number of compilation jobs to run in parallel. For example, the following command will invoke 4 compilation jobs simultaneously:

make -j 4

However, please consult the documentation of your system to avoid violating the usage policy.

[Optional] Autocompletion of configure.py

Since there are many options in GAMER, we have introduced an autocomplete feature for configure.py. You can enable this feature by the following steps:
1. Update the shebang of configure.py (if needed)
  
  For example, replace #!/usr/bin/python3 with the path to your preferred Python interpreter.
  Example at the top of configure.py
```
#!/usr/bin/python3
"""
User guides of this script are provided in the following link.
https://github.com/gamer-project/gamer/wiki/Installation
"""
```
2. Copy the autocomplete shell script to ${HOME}/.config/gamer (~/.config/gamer/)
```
mkdir -p ~/.config/gamer
cp tool/config/config_autocomplete.sh ~/.config/gamer/
```
3. Update ~/.bashrc to load the autocomplete script
  
  Please add the following line to ~/.bashrc:
```
source ~/.config/gamer/config_autocomplete.sh
```

Note

The config_autocomplete.sh script registers autocomplete for three commands: python, python3, and ./configure.py.. If you want to add more commands, simply append them at the bottom of the script.

Reload ~/.bashrc to enable the autocomplete feature
```
source ~/.bashrc
```

Now, try to type ./configure.py and then press <tab> multiple times!

Installation - hyschive/gamer-fork GitHub Wiki

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