Solving large linear systems with multiple right-hand sides

AIR: Iterative refinement acceleration using arbitrary dynamic precision

“…It will be more beneficial to use AIR for linear systems having multiple right-hand sides bs, given a matrix A (i.e., Ax 1 = b 1 , Ax 2 = b 2 , ...) [33], since the matrix decomposition is performed only once in this case and the refinement procedure becomes more significant in terms of the total significand cost. Fig.…”