NBODY6++GPU (Spurzem et al. 1999, Aarseth 2003, Wang et al. 2015) with HDF5 output facilities.
To enable HDF5 output, config the code with the --enable-hdf5 flag.
./configure --enable-hdf5
make
Make sure that your HDF5 library is configured with the --enable-fortran --enable-parallel flags.
Use KZ(46) and KZ(47) to adjust the HDF5 output frequency. Normally, it is recommended to set KZ(46)=3. KZ(47) determines the output frequency. For example, if you would like to generate 32 snapshot per NBODY time unit, you could set KZ(47)=5, since 2^5=32.
The simulation data will be stored in the file data.h5part, which can be visualized directly with Paraview using the h5part reader.
Note that HDF5 output facilities is now included in NBODY6++GPU, but this is a special version with the output data optimized for simulating planetary systems in star clusters.