The Portable, Extensible Toolkit for Scientific Computation (PETSc), is a suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. It employs the Message Passing Interface (MPI) standard for all message-passing communication.
.. note::
To install the PETSc and petsc4py packages
(mpi4py is optional but highly recommended) use::
$ python -m pip install numpy mpi4py
$ python -m pip install petsc petsc4py
.. tip::
You can also install the in-development versions with::
$ python -m pip install Cython numpy mpi4py
$ python -m pip install --no-deps https://gitlab.com/petsc/petsc/-/archive/main/petsc-main.tar.gz
Provide any PETSc ./configure options using the environmental variable PETSC_CONFIGURE_OPTIONS.
Do not use the PETSc ./configure options --with-cc, --with-cxx, --with-fc, or --with-mpi-dir.
To set the MPI compilers use the environmental variables MPICC, MPICXX, MPIFORT.
If mpi4py is installed the compilers will be obtained from that installation and MPICC, MPICXX, MPIFORT will be ignored.
FAQs
PETSc: Portable, Extensible Toolkit for Scientific Computation
We found that petsc demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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