unusual linear equation codes from cococubed

Cococubed.com

Unusual Linear Equation Solver

     Zingale's
     Brown's
     code
     Iliadis' database
     Herwig's
     Meyer's

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The source code in gift.tbz writes source code to solve a system of linear equations by Gaussian elimination. It is setup for a 10x10 tridiagonal matrix. Gift-generated routines skip calculations with matrix elements that are zero; in this restricted sense gift-generated routines are sparse, but the storage of a full matrix is still required. Diagonal dominance is assumed, so no row or column interchanges are performed. The tool writes out the sequence of Gaussian elimination and backsubstitution steps without any do loop constructions over the matrix elements (see the snippet elow) Thus, gift generated subroutines can become quite large. However, for small matrices the execution speed of the generated subroutines on nuclear reaction networks is faster than any of the dense or sparse packages that I've tested.

Please cite the relevant references if you publish a piece of work that use these codes, pieces of these codes, or modified versions of them. Offer co-authorship as appropriate.