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# PETSc
PETSc, the Portable, Extensible Toolkit for Scientific Computation,
pronounced PET-see ([/ˈpɛt-siː/](https://en.wikipedia.org/wiki/Help:IPA/English#Key)), is
for the scalable (parallel) solution of scientific
applications modeled by partial differential equations (PDEs). It has bindings for C, Fortran, and Python (via petsc4py).
PETSc also contains TAO, the Toolkit for Advanced Optimization, software library.
They support MPI, and GPUs through
CUDA, HIP, Kokkos, or OpenCL, as well as hybrid MPI-GPU parallelism; they also support the NEC-SX Tsubasa Vector Engine.
Immediately jump in and run PETSc and TAO code {any}`handson`.
PETSc is now on [BlueSky](https://bsky.app/profile/petsc.org).
The {any}`2025 PETSc Annual User Meeting<2025_meeting>` will take place May 20-21, 2025 in Buffalo, New York, USA, with tutorials on May 19th.
Mrs. Hong Zhang, who has been a PETSc developer for twenty-five years and mentored many students and future PETSc developers, has retired.
PETSc is associated with NumFOCUS, a 501(c)(3) nonprofit supporting open code and reproducible science,
through which you can help support PETSc.
Book on numerical methods using PETSc
> **PETSc for Partial Differential Equations: Numerical Solutions in C and Python**, by Ed Bueler.
>
> - [Book from SIAM Press](https://my.siam.org/Store/Product/viewproduct/?ProductId=32850137)
> - [Google Play E-book](https://play.google.com/store/books/details/Ed_Bueler_PETSc_for_Partial_Differential_Equations?id=tgMHEAAAQBAJ)
## Main Topics
```{toctree}
:maxdepth: 1
overview/index
install/index
tutorials/index
manual/index
manualpages/index
petsc4py/index
faq/index
community/index
developers/index
miscellaneous/index
```
<a href="./manual/manual.pdf">PETSc/TAO Users Manual in PDF</a>
(doc_toolkits_use_petsc)=
## Toolkits/libraries that use PETSc
- [ADflow](https://github.com/mdolab/adflow) An open-source
computational fluid dynamics solver for aerodynamic and
multidisciplinary optimization
- [BOUT++](https://boutproject.github.io) Plasma simulation
in curvilinear coordinate systems
- [Chaste](https://www.cs.ox.ac.uk/chaste/) Cancer, Heart and
Soft Tissue Environment
- [code_aster](https://www.code-aster.org/V2/spip.php?rubrique2)
open-source general purpose finite element code for solid and
structural mechanics
- [code_saturne](https://www.code-saturne.org)
open-source general purpose code for fluid dynamics
- [COOLFluiD](https://github.com/andrealani/COOLFluiD) CFD,
plasma and multi-physics simulation package
- [DAFoam](https://dafoam.github.io) Discrete adjoint solvers
with [OpenFOAM](https://openfoam.com) for aerodynamic
optimization
- [DAMASK](https://damask-multiphysics.org) Unified multi-physics
crystal plasticity simulation package
- [DEAL.II](https://www.dealii.org/) C++ based finite element
simulation package
- [DUNE-FEM](https://dune-project.org/sphinx/content/sphinx/dune-fem/) Python and C++ based finite element simulation package
- [FEniCS](https://fenicsproject.org/) Python based finite
element simulation package
- [Firedrake](https://www.firedrakeproject.org/) Python based
finite element simulation package
- [Fluidity](https://fluidityproject.github.io/) a finite
element/volume fluids code
- [FreeFEM](https://freefem.org/) finite element and boundary element PDE solver
with embedded domain specific language
- [GetDP](https://www.getdp.info/) a General Environment for the Treatment of Discrete Problems
- [hIPPYlib](https://hippylib.github.io) [FEniCS](https://fenicsproject.org/)-based toolkit
for solving deterministic and Bayesian inverse
problems governed by PDEs
- [libMesh](https://libmesh.github.io) adaptive finite element
library
- [MFEM](https://mfem.org/) lightweight, scalable C++ library
for finite element methods
- [MLSVM](https://github.com/esadr/mlsvm), Multilevel Support
Vector Machines with PETSc.
- [MoFEM](http://mofem.eng.gla.ac.uk/mofem/html), An open
source, parallel finite element library
- [MOOSE - Multiphysics Object-Oriented Simulation
Environment](https://mooseframework.inl.gov/) finite element
framework, built on [libMesh](https://libmesh.github.io).
- [OOFEM](http://www.oofem.org) object-oriented finite element
library
- [OpenCarp](https://opencarp.org/) Cardiac electrophysiology simulator
- [OpenFOAM](https://develop.openfoam.com/modules/external-solver)
Available as an extension for linear solvers for OpenFOAM
- [OpenFPM](https://openfpm.mpi-cbg.de/) framework for particles and mesh simulation
- [OpenFVM](http://openfvm.sourceforge.net/) finite volume
based CFD solver
- [PermonSVM](http://permon.vsb.cz/permonsvm.htm) support
vector machines and
[PermonQP](http://permon.vsb.cz/permonqp.htm) quadratic
programming
- [PetIGA](https://github.com/dalcinl/PetIGA) A framework
for high performance Isogeometric Analysis
- [PFLOTRAN](https://pflotran.org/) An open source, state-of-the-art
code for massively parallel simulation of subsurface flow, reactive transport, geomechanics, and electrical resistivity tomography
- [PHAML](https://math.nist.gov/phaml/) The Parallel
Hierarchical Adaptive MultiLevel Project
- [preCICE](https://www.precice.org) - A fully parallel
coupling library for partitioned multi-physics simulations
- [PyClaw](https://www.clawpack.org/pyclaw/) A massively
parallel, high order accurate, hyperbolic PDE solver
- [SLEPc](https://slepc.upv.es/) Scalable Library for
Eigenvalue Problems
(doc_index_citing_petsc)=
## Citing PETSc
You can run PETSc programs with the option `-citations` to print appropriate citations for the software and algorithms being used in that program.
For general citations on PETSc please use the following:
```{literalinclude} /petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: petsc-web-page
```
```{literalinclude} /petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: petsc-user-ref
```
```{literalinclude} /petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: petsc-efficient
```
For petsc4py usage please cite
```{literalinclude} /petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: dalcinpazklercosimo2011
```
For PETSc usage on GPUs please cite
```{literalinclude} /petsc.bib
:append: '}'
:end-at: author
:language: none
:start-at: mills2021
```
For `PetscSF` -- parallel communication in PETSc -- please cite
```{literalinclude} /petsc.bib
:append: '}'
:end-at: pages
:language: none
:start-at: petscsf2022
```
If you use the `TS` component of PETSc please cite the following:
```{literalinclude} petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: abhyankaretal2018
```
If you utilize the `TS` adjoint solver please cite
```{literalinclude} /petsc.bib
:append: '}'
:end-at: year
:language: none
:start-at: zhang2022tsadjoint
```
|
