#define S_MAX 0.999995 /* Max overlap for mitrush vectors and collapsed vectors */
#define HD_MIN 1.0E-4  /* Minimum diagonal element of preconditioner */
#define ZERO 1e-10
#define MPn_ZERO 1e-14
#define SA_NORM_TOL 1.0E-5 /* norm of schmidt orthogonalized vector */
#define MPn_NORM_TOL 1.0E-12
