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Install

Install this package:

emerge -a sci-libs/colamd

If the package is masked, you can unmask it using the autounmask tool or standard emerge options:

autounmask sci-libs/colamd

Or alternatively:

emerge --autounmask-write -a sci-libs/colamd

Package Information

Description:

The COLumn Approximate Minimum Degree ordering algorithm computes a permutation vector P such that the LU factorization of A (:,P) tends to be sparser than that of A. The Cholesky factorization of (A (:,P))\'*(A (:,P)) will also tend to be sparser than that of A\'*A. SYMAMD is a symmetric minimum degree ordering method based on COLAMD, available as a MATLAB-callable function. It constructs a matrix M such that M\'*M has the same pattern as A, and then uses COLAMD to compute a column ordering of M.

Homepage:

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

License:

BSD

Versions

Metadata

Description

• The COLumn Approximate Minimum Degree ordering algorithm computes a permutation vector P such that the LU factorization of A (:,P) tends to be sparser than that of A. The Cholesky factorization of (A (:,P))\'*(A (:,P)) will also tend to be sparser than that of A\'*A. SYMAMD is a symmetric minimum degree ordering method based on COLAMD, available as a MATLAB-callable function. It constructs a matrix M such that M\'*M has the same pattern as A, and then uses COLAMD to compute a column ordering of M.

Maintainers

• Francois Bissey (frp.bissey@gmail.com) - Type: person

Upstream

• Remote IDs:
  • github: DrTimothyAldenDavis/SuiteSparse

<pkgmetadata>
	<maintainer type="person">
		<email>frp.bissey@gmail.com</email>
		<name>Francois Bissey</name>
	</maintainer>
	<longdescription lang="en">
  The COLumn Approximate Minimum Degree ordering algorithm
  computes a permutation vector P such that the LU factorization of A
  (:,P) tends to be sparser than that of A. The Cholesky factorization
  of (A (:,P))\'*(A (:,P)) will also tend to be sparser than that of
  A\'*A. SYMAMD is a symmetric minimum degree ordering method based on
  COLAMD, available as a MATLAB-callable function. It constructs a
  matrix M such that M\'*M has the same pattern as A, and then uses
  COLAMD to compute a column ordering of M.
</longdescription>
	<upstream>
		<remote-id type="github">DrTimothyAldenDavis/SuiteSparse</remote-id>
	</upstream>
</pkgmetadata>

Lint Warnings

• [Warning] USE flag 'test' in ebuild 3.2.1 is not documented in metadata.xml
• [Error] Missing md5-cache for ebuild colamd-3.2.1

USE Flags

Manage flags for this package: euse -i <flag> -p sci-libs/colamd | euse -E <flag> -p sci-libs/colamd | euse -D <flag> -p sci-libs/colamd

Manifest