petsc 3.18.5

PETSc: Portable, Extensible Toolkit for Scientific Computation

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 PETSc and petsc4py (mpi4py is optional but highly recommended) use:

$ python -m pip install numpy mpi4py  (or pip install numpy mpi4py)
$ python -m pip install petsc petsc4py (or 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

To set the MPI compilers use the environmental variables MPICC, MPICXX, MPIF90.

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.

If mpi4py is installed the compilers will obtained from that installation and MPICC, MPICXX, MPIF90 will be ignored.