nbodycosmos 0.1.1

Fast Cosmological N-body Simulation

Cosmological N-body Simulation

Cosmological N‑body simulation framework developed at the National Institute of Technology, Calicut.
It reads an input P(k) from a CSV file, generates Zel'dovich initial conditions, and evolves the density field in a cosmological box.

Installation

From PyPI (when published):

pip install nbodycosmos

From source (editable, for development):

git clone https://github.com/AstroAkshay/Cosmological-N-body-Simulation.git
cd Cosmological-N-body-Simulation
pip install -e .

Usage

From Python

from nbodycosmos import run_simulation
from nbodysim.params import PyParams

run_simulation(
    params     = PyParams(N1=64, N2=64, N3=64, Nbin=10, LL=0.07, NF=1, vaa=0.047),
    csv_path   = "data/P_CDM.csv",
    output_dir = "output/",
)

From command line

run-cosmos

With custom inputs:

run-cosmos --csv data/my_Pk.csv --output