Skip to main content

Python interface to UMFPACK sparse direct solver.

Project description


scikit-umfpack provides wrapper of UMFPACK sparse direct solver to SciPy.


>>> from scikits.umfpack import spsolve, splu
>>> lu = splu(A)
>>> x = spsolve(A, b)

Installing scikits.umfpack also enables using UMFPACK solver via some of the scipy.sparse.linalg functions, for SciPy >= 0.14.0. Note you will need to have installed UMFPACK before hand. UMFPACK is a part of SuiteSparse.



scikit-umfpack depends on NumPy, SciPy, SuiteSparse, and swig is a build-time dependency.

Building SuiteSparse

SuiteSparse may be available from your package manager or as a prebuilt shared library. If that is the case use that if possible. Installation on Ubuntu 14.04 can be achieved with

sudo apt-get install libsuitesparse-dev

Otherwise, you will need to build from source. Unfortunately, SuiteSparse’s makefiles do not support building a shared library out of the box. You may find Stefan Fuertinger instructions helpful.

Furthmore, building METIS-4.0, an optional but important compile time dependency of SuiteSparse, has problems on newer GCCs. This patch and instructions from Nadir Soualem are helpful for getting a working METIS build.

Otherwise, I commend you to the documentation.


Releases of scikit-umfpack can be installed using pip. For a system-wide installation run:

pip install --upgrade scikit-umfpack

or for a user installation run

pip install --upgrade --user scikit-umfpack

To install scikit-umfpack from its source code directory, run in that directory (--user means a user installation):

pip install --upgrade --user .



You can check the latest sources with the command:

git clone

or if you have write privileges:

git clone


After installation, you can launch the test suite from outside the source directory (you will need to have the nose package installed):

nosetests -v scikits.umfpack

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

scikit-umfpack-0.3.3.tar.gz (26.2 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page