https://github.com/petrkryslucsd/sparspak.jl

Direct solution of large sparse systems of linear algebraic equations in pure Julia
https://github.com/petrkryslucsd/sparspak.jl

linear-algebra matrix sparse

Last synced: 2 months ago
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Direct solution of large sparse systems of linear algebraic equations in pure Julia

• Host: GitHub
• URL: https://github.com/petrkryslucsd/sparspak.jl
• Owner: PetrKryslUCSD
• License: mit
• Created: 2022-04-18T02:41:17.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2023-10-14T18:42:59.000Z (over 1 year ago)
• Last Synced: 2025-02-14T08:47:45.166Z (2 months ago)
• Topics: linear-algebra, matrix, sparse
• Language: Julia
• Homepage:
• Size: 1.26 MB
• Stars: 37
• Watchers: 4
• Forks: 7
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# Sparspak.jl

Translation of the well-known sparse matrix software Sparspak (Waterloo Sparse Matrix Package), solving

large sparse systems of linear algebraic equations. Sparspak is composed of the

subroutines from the book "Computer Solution of Large Sparse Positive Definite

Systems" by Alan George and Joseph Liu. Originally written in Fortran 77, later

rewritten in Fortran 90. Here is the software translated into Julia.

The Julia rewrite is released  under the MIT license with an express permission from the authors (George and Liu). Many thanks!

## News

- 09/18/2022: Jürgen Fuhrmann implemented dispatch to allow for arbitrary-precision floating point numbers and ForwardDiff.Dual to be routed around BLAS routines. This then should allow Automatic Differentiation (AD) of a sparse-matrix solve.

- 09/01/2022: Configuration now allows for both Julia 1.6 (LTS) and the subsequent Julia versions.

- 06/03/2022: The sparse LU solver has been now rewritten and tested.

## Contributing

Check out the list of current issues. You may find [the contributor guidelines](https://opensource.com/life/16/3/contributor-guidelines-template-and-tips) helpful.

## Reference

Alan George, Joseph Liu,

Computer Solution of Large Sparse Positive Definite Systems,

Prentice Hall, 1981,

ISBN: 0131652745,

LC: QA188.G46.

## Additional documents

Some design documents are in the folder `docs`: 

[SIAM paper](docs/Object_Oriented_interface_to_Sparspak.pdf), and the [User guide](docs/guide.pdf). These documents are only for

the Fortran version of the package.