treecode_q

treecode_q                        Hierarchical N-body code (quick scan)

  in=                             Input file with initial conditions

  out=                            Output file pattern for N-body frames.
				  Replace %d with step number of frame.

  restore=                        Continue run from state file

  save=                           Write state file as code runs

  dtime=1/32                      Leapfrog integration timestep

  nstatic=0                       Number of static bodies in array.
				  If pos (neg), count from start (end).

  eps=0.025                       Density field smoothing length

  usequad=false                   If true, use quad moments

  options=                        Various control options.
				  Choices: new-tout,reset-time,bh86,sw94.

  outputs=Position,Velocity       Data fields to output.
				  Others: Mass,Potential,Acceleration.

  tstop=2.0                       Time to stop integration

  dtout=1/4                       Data output timestep

  nbody=4096                      Number of particles (for test run).
				  If no input file, make Plummer model.

  seed=123                        Random number seed (for test run)

  ntrace=0                        Number of trace bodies output each step

  trace=                          Output file pattern for trace frames

  VERSION=1.4                     Joshua Barnes  28 November 2000

Joshua E. Barnes      (barnes at ifa.hawaii.edu) Created: 9 June 2008 http://www.ifa.hawaii.edu/~barnes/zeno/treecode_q.html