LIS or LiS may refer to:
Lis is a surname.Notable people with the name include:
Lis (Library of Iterative Solvers for linear systems, pronounced [lis]) is a scalable parallel software library for solving linear equations and eigenvalue problems that arise in the numerical solution of partial differential equations using iterative methods.
Lis provides facilities for:
A C program to solve the linear equation Ax=b is written as follows:
The installation of Lis requires a C compiler. The Fortran interface requires a Fortran compiler, and the algebraic multigrid preconditioner requires a Fortran 90 compiler. For parallel computing environments, an OpenMP or MPI library is used. Both the Harwell-Boeing and Matrix Market formats are supported to import and export user data.
This bloodshot blur, it will not pass
While trying to disintegrate into a complacent carcass
Cells refusing to dissipate