class CgArg cg_arg = {
double mass = 0.001
double epsilon = 0.0
int max_num_iter = 10000
double stop_rsd = 1e-10
double true_rsd = 1e-10 
RitzMatType RitzMatOper = NONE
InverterType Inverter = CG
int bicgstab_n = 0
string fname_eigen = "./"
int neig = 0
double eigen_shift = 0.0
double ama_stop_rsd = 0.0
}