Blit - a library for ``block iterative sparse linear solvers''

• Blit is a highly efficient linear solver library designed for solving large-scale systems that arise from many medical imaging applications. Compared with the traditional solvers which solve for only one solution at a time, blit solvers can produce multiple solutions in a single call, thus is significantly faster. Blit contains iterative methods that support multiple right-hand-sides, referred to as the block solvers. A block solver handles the following equation:

  A [x₁ x₂ x₃ ... x_M]=[b₁ b₂ b₃ ... b_M]

  where A is a N-by-N sparse (or full) matrix with either real or complex values, b_i and x_i are the right-hand-side and solution vectors, respectively.