Installation

Install from PyPI using pip

You can use pip to install slepc4py and its dependencies.

If you have a working MPI implementation and the mpicc compiler wrapper is on your search path, it is highly recommended to install mpi4py first:

$ python -m pip install mpi4py

Ensure you have NumPy and petsc4py installed:

$ python -m pip install numpy petsc petsc4py

Finally, install slepc4py:

$ python -m pip install slepc slepc4py

If you already have working PETSc and SLEPc installs, set environment variables SLEPC_DIR and PETSC_DIR (and perhaps PETSC_ARCH for non-prefix installs) to appropriate values and next use pip:

$ export SLEPC_DIR=/path/to/slepc
$ export PETSC_DIR=/path/to/petsc
$ export PETSC_ARCH=arch-linux2-c-opt
$ python -m pip install petsc4py slepc4py

Install from the SLEPc source tree

If you also want to install petsc4py from the PETSc source tree, follow the instructions in the petsc4py installation page.

Set the PETSC_DIR and PETSC_ARCH environment variables, as well as SLEPC_DIR. Follow the instructions to build SLEPc. Then cd to the top of the SLEPc source tree and run:

$ python -m pip install src/binding/slepc4py

The installation of slepc4py supports multiple PETSC_ARCH in the form of a colon separated list:

$ PETSC_ARCH='arch-0:...:arch-N' python -m pip install src/binding/slepc4py

If you are cross-compiling, and the numpy module cannot be loaded on your build host, then before invoking pip, set the NUMPY_INCLUDE environment variable to the path that would be returned by import numpy; numpy.get_include():

$ export NUMPY_INCLUDE=/usr/lib/pythonX/site-packages/numpy/core/include