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ChaNGa
Code to perform collisionless N-body simulations.
What is ChaNGa?
Code to perform collisionless N-body simulations. Supports cosmological simulations with periodic boundary conditions in comoving coordinates and simulations of isolated stellar systems. Includes hydrodynamics via Smooth Particle Hydrodynamics (SPH). Uses a Barnes-Hut tree for gravity with hexadecapole expansion and Ewald summation for periodic forces. Timestepping via leapfrog integrator with individual timesteps. Uses Charm++ dynamic load balancing for massively parallel systems. Uses the Tipsy file format for I/O.
Product typeScientific Models
Pricing ·
Deployment
APINot available
What teams use ChaNGa for
Collisionless N-body simulations
Cosmological simulations with periodic boundary conditions in comoving coordinates
Simulations of isolated stellar systems
Integrations and access
Platforms, integrations, and language support vary by plan and region. Confirm final requirements with the vendor.
Platforms
IntegrationsAPI and webhooks
Languages
Support
What reviewers say
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Enterprise readiness
Compliance claims are normalized from current vendor documentation and independently reviewed by SOTA2.
Data retention:
Benchmarks and comparisons
Independent benchmarksStructured task results are being verified.
Side-by-side comparisonsComparison workspaces will be available in a later release.
