LSMR (Least Squares Minimal Residual) is an iterative method for the solution of the linear system of equations and least-squares problems. This paper presents a block version of the LSMR algorithm for solving linear systems ...

with the traditional LSMR method....

The global solvers are an attractive class of iterative solvers for solving linear systems with

multiple right-hand sides. In this paper, first, a new global method for solving general linear

systems with ...