The Cosmic Code Comparison Project

Understand

Current and upcoming cosmological observations allow us to probe structures on smaller and smaller scales, entering highly nonlinear regimes.

• In order to obtain theoretical predictions in these regimes, large cosmological simulations have to be carried out.
• The promised high accuracy from observations make the simulation task very demanding: the simulations have to be at least as accurate as the observations.
• This requirement can only be fulfilled by carrying out an extensive code validation program.