A Julia Interface to BasicLU

Documentation	Continuous Integration	Coverage	DOI

How to cite

If you use BasicLU.jl in your work, please cite using the format given in CITATION.bib.

How to install

julia> ]
pkg> add BasicLU
pkg> test BasicLU

Content

BasicLU implements a sparse LU factorization and an update method that maintains the factorization after column changes to the matrix. It is intended for use in simplex-type algorithms and has been tailored to hypersparse linear programming problems. It provides routines for solving linear systems with a dense or sparse right-hand side. BasicLU can be also used to compute a maximum volume basis and the row deficiency of a m-by-n matrix A.

Custom Installation

Note: BasicLU is already precompiled with Yggdrasil for all platforms.

To use your custom BasicLU, set the environment variable JULIA_BASICLU_LIBRARY_PATH to point to the folder holding the basicLU shared libraries before using BasicLU.

The JULIA_BASICLU_LIBRARY_PATH environment variable may be set permanently in the shell's startup file, or in $HOME/.julia/config/startup.jl.

Bug reports and discussions

If you think you found a bug, feel free to open an issue. Focused suggestions and requests can also be opened as issues. Before opening a pull request, start an issue or a discussion on the topic, please.

If you want to ask a question not suited for a bug report, feel free to start a discussion here. This forum is for general discussion about this repository and the JuliaSmoothOptimizers organization, so questions about any of our packages are welcome.