Getting Started - cmyoo/cosmos GitHub Wiki

How to start a numerical relativity simulation?

• There are only a few steps to just run a numerical relativity simulation with the simplest setup in the three dimensional box.

• Before going further to compile and run, please see Prerequisites, although COSMOS does not require any other libraries.

1. Downloading COSMOS

The first step is to download a copy of COSMOS from this repo.

2. Making Project Directory

• The second step is to make your own project by utilizing the attached script "makecosmos.sh". In short, as the initial test, you may create flat_simplest directory in the top of COSMOS directory by doing the command as ./makecosmos.sh flat_simplest. If the flat_simplest directory is created successfully in the top of COSMOS directory, you are ready to compile and run the code with the simplest setup.

3. Compiling and Running the code

• The last step is to move to the flat_simplest directory as cd flat_simplest, do make there and run the executable output as ./cosmos.
• This starts the numerical relativity simulation with the simplest setup explained here.