mlprec/impl/mld_dmlprec_aply.f90
mlprec/impl/smoother/mld_c_jac_smoother_apply_vect.f90
mlprec/impl/smoother/mld_d_jac_smoother_apply_vect.f90
mlprec/impl/smoother/mld_s_jac_smoother_apply_vect.f90
mlprec/impl/smoother/mld_z_jac_smoother_apply_vect.f90
Testing: make APPLY_VECT go through the iterative path, always; this also
handles the case SWEEPS=0
DMLPREC_APLY: activate Briggs-style option.