| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> |
| <pkgmetadata> |
| <maintainer type="project"> |
| <email>sci@gentoo.org</email> |
| <name>Gentoo Science Project</name> |
| </maintainer> |
| <longdescription lang="en"> |
| SuperLU is a general purpose library for the direct solution of large, |
| sparse, nonsymmetric systems of linear equations on high performance |
| machines. The library is written in C and is callable from either C or |
| Fortran. The library routines will perform an LU decomposition with |
| partial pivoting and triangular system solves through forward and back |
| substitution. The LU factorization routines can handle non-square |
| matrices but the triangular solves are performed only for square |
| matrices. The matrix columns may be preordered (before factorization) |
| either through library or user supplied routines. This preordering for |
| sparsity is completely separate from the factorization. Working |
| precision iterative refinement subroutines are provided for improved |
| backward stability. Routines are also provided to equilibrate the |
| system, estimate the condition number, calculate the relative backward |
| error, and estimate error bounds for the refined solutions. |
| </longdescription> |
| </pkgmetadata> |