libiter Parameters

If ``flag-mat'' is set by #f, linear set of equations for the hydrodynamic interaction is solved by iterative method in libiter.

• IT-solver : (string) solver for libiter.
• IT-max : max number of iteraction
• IT-n : restart number
• IT-eps : accuracy of the solution

For ``IT-solver,'' set one of the following

• ``cg'' for conjugate gradient method
• ``cgs'' for conjugate gradient squared (Weiss' Algorithm 11)
• ``bicgstab'' for Bi-CG stabilized (Weiss' Algorithm 12)
• ``sta'' for Bi-CG stab method (another implementation)
• ``sta2'' for Bi-CG dtab2 method
• ``gpb'' for gpbi-cg method
• ``otmk'' for orthomin method
• ``gmres'' for generalized minimum residual method