&run_pars
  cvsid='$Id: run.in,v 1.4 2003/08/11 13:44:35 nilshau Exp $',
  nt=40000, it1=10, cdt=0.4, cdtv=0.80, isave=100, itorder=3,
  dsnap=500., dvid=200., ialive=1,dspec=40.,vel_spec=T,mag_spec=T
  fft_switch='fftpack',lsfu=T,lsfb=T,lsfz1=T,lsfz2=F,nr_directions=1,
  oned=T
/
&hydro_run_pars
  nu=1e-2, ivisc='nu-const',
/
&density_run_pars
/
&forcing_run_pars
  iforce='helical', force=0.02, relhel=0.,slope_ff=5.
/
&magnetic_run_pars
  eta=1e-3,
/
