by owlice » Tue May 10, 2011 11:51 am ChaNGa: Charm N-body GrAvity solver
Abstract: ChaNGa (Charm N-body GrAvity solver) is a code to perform collisionless N-body simulations. It can perform cosmological simulations with periodic boundary conditions in comoving coordinates or simulations of isolated stellar systems. It also can include hydrodynamics using the Smooth Particle Hydrodynamics (SPH) technique. It uses a Barnes-Hut tree to calculate gravity, with hexadecapole expansion of nodes and Ewald summation for periodic forces. Timestepping is done with a leapfrog integrator with individual timesteps for each particle.
Credit: N-Body Shop, University of Washington
Site: http://www-hpcc.astro.washington.edu/tools/changa.html
http://software.astro.washington.edu/nchilada/
http://www.computer.org/portal/web/csdl ... SC.2010.49 [PDF]
ID: ascl:1105.005
