PetIBM

Spec sheet

Purpose

PetIBM implements immersed-boundary methods to solve 2D and 3D incompressible Navier–Stokes equations on stretched Cartesian grids using a projection approach.Read 9 Oct 2026 · barbagroup.github.io

Audience

The project provides end-user installation instructions and separate guidance for developers extending or debugging PetIBM.Read 9 Oct 2026 · barbagroup.github.io

Free plan

YesRead 24 Sep 2026 · barbagroup.github.io

API

PetIBM installs a library and header files for building flow solvers, with API documentation and simplified example solvers provided.Read 9 Oct 2026 · barbagroup.github.io

Support

The project directs bug reports, feature requests, and questions to its GitHub issue tracker and lists email contacts for questions, suggestions, or feedback.Read 9 Oct 2026 · barbagroup.github.io

License

PetIBM code is under the BSD 3-Clause License.Read 9 Oct 2026 · barbagroup.github.io

Assessment tools

NoRead 24 Sep 2026 · barbagroup.github.io

Authoring tools

NoRead 24 Sep 2026 · barbagroup.github.io

Bodies and meshes

It supports multiple immersed bodies, prescribed motion, and 2D and 3D stretched Cartesian meshes.Read 9 Oct 2026 · barbagroup.github.io

Compatibility limit

The CMake instructions for finding PetIBM dependencies exclude MPI, which must be found separately.Read 9 Oct 2026 · barbagroup.github.io

CPU and GPU solvers

Linear systems can be solved on CPUs with PETSc KSP objects or on multiple CUDA-capable GPUs using NVIDIA AmgX, connected through AmgXWrapper.Read 9 Oct 2026 · barbagroup.github.io

Delivery mode

desktopRead 24 Sep 2026 · barbagroup.github.io

Dependencies

Building from source requires a GNU C++ compiler, PETSc with parallel HDF5, an MPI implementation, yaml-cpp, and SymEngine; AmgX and AmgXWrapper are optional for GPU linear solvers.Read 9 Oct 2026 · barbagroup.github.io

I/O

The feature list includes HDF5 input/output support.Read 9 Oct 2026 · barbagroup.github.io

Installation

End users can install prebuilt GPU-enabled packages with Anaconda or use Docker and Singularity/Apptainer containers.Read 9 Oct 2026 · barbagroup.github.io

Lesson library

NoRead 24 Sep 2026 · barbagroup.github.io

Methods

It includes the Immersed Boundary Projection Method and a decoupled version of that method.Read 9 Oct 2026 · barbagroup.github.io

Offline access

YesRead 24 Sep 2026 · barbagroup.github.io

Parallel computing

It supports distributed-memory architectures, multiple GPUs on one node, and GPU clusters.Read 9 Oct 2026 · barbagroup.github.io

Platform limits

Linux is the only officially supported system; the documentation says macOS and Windows may or may not work and offers no assistance for issues on those systems.Read 9 Oct 2026 · barbagroup.github.io

Plans and prices

Every PetIBM plan and price →

Where Specifiction places it

• Physics Simulation Software#33 of 898.0