&run_pars
  cvsid='$Id: run.in,v 1.1 2003/09/30 12:46:09 nilshau Exp $',
  nt=10000, it1=50, cdt=0.4, cdtv=0.80, isave=400, itorder=3,
  dsnap=5000., dvid=5000., ialive=1, dspec=20., vel_spec=T, mag_spec=T,
  fft_switch='fftpack',lsfz1=F,nr_directions=1,oned=F,lsfu=F,lsfb=F
/
&hydro_run_pars
  nu=2e-3, ivisc='nu-const',
/
&density_run_pars
/
&forcing_run_pars
  iforce='helical', force=0.02, relhel=1.,slope_ff=5.
/
&magnetic_run_pars
  eta=2e-3, B_ext=0,0,0.3
/
