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sci-libs/
ldl

Simple but educational LDL^T matrix factorization algorithm

https://people.engr.tamu.edu/davis/suitesparse.html

Available Versions

Versionamd64x86alphaarmarm64hppamipsppcppc64riscvsparc
3.3.3  : 0/3 EAPI 8 ~amd64 ~x86 ~alpha ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~sparc
3.0.3  : 0/3 EAPI 8 ~amd64 ~x86 ~alpha ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~sparc
2.2.6  : 0 EAPI 7 amd64 ~x86?alpha ~arm arm64 ~hppa?mips ~ppc ppc64?riscv ~sparc

Masks

  • suitesparseconfig-7.0.0 fails to build with multilib enabled because of dependencies that cannot be satisfied. All the other packages require it. Bug #908851.
    Affected packages
    =sci-libs/ldl-3.0.3
    Author/Date
    Michał Górny <mgorny@gentoo.org> (2023-06-21)

Package Metadata

  • Upstream
    Remote-Idhttps://github.com/DrTimothyAldenDavis/SuiteSparse
  • Full description
    LDL is a set of concise routines for factorizing symmetric positive-definite sparse matrices, with some applicability to symmetric indefinite matrices. Its primary purpose is to illustrate much of the basic theory of sparse matrix algorithms in as concise a code as possible, including an elegant new method of sparse symmetric factorization that computes the factorization row-by-row but stores it column-by-column. The entire symbolic and numeric factorization consists of a total of only 49 lines of code. The package is written in C, and includes a MATLAB interface.
  • USE flags
    Global Use Flagsabi_mips (Use Expand)abi_s390 (Use Expand)abi_x86 (Use Expand)
  • License
    LGPL-2.1+
  • Maintainer(s)
    Gentoo Science Project