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Diffstat (limited to 'sci-libs/colamd/metadata.xml')
| -rw-r--r-- | sci-libs/colamd/metadata.xml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sci-libs/colamd/metadata.xml b/sci-libs/colamd/metadata.xml new file mode 100644 index 000000000000..5e7e28f3c14e --- /dev/null +++ b/sci-libs/colamd/metadata.xml @@ -0,0 +1,17 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> +<pkgmetadata> +<herd>sci</herd> +<longdescription lang="en"> + The COLAMD 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. Colamd and symamd tend to be + faster and generate better orderings than their MATLAB counterparts, + colmmd and symmmd. +</longdescription> +</pkgmetadata> |