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Name

falcon - Process falcon HDF5 snapshots

Synopsis

falcon [parameter=value]

Description

This program convert the HDF5 based falcON snapshot format into a NEMO format. It is still under development, see CAVEATS below.

Parameters

The following parameters are recognized in order; they may be given in any order if the keyword is also given. Use --help to confirm this man page is up to date.
in=
Input falcon(5NEMO) snapshot filename. No default.
out=
Output snapshot(5NEMO) filename. No default.

Examples


$ falcon sim32.h5  - | tsf -
char History[30] "falcon sim32.h5 - VERSION=0.3"
set SnapShot
  set Parameters
    int Nobj 32 
    double Time 0.00000 
  tes
  set Particles
    int CoordSystem 66306 
    float Mass[32] 0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 
      0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 
      0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 
      0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 0.0312500 
      . . .
    float Position[32][3] -1.30477 1.59788e-16 0.00000 -1.29043e-16 
      -0.702476 -0.405575 1.15331e-16 1.88349 1.08744 0.486825 
      -0.486825 -0.780658 -2.24382 2.24382 0.819326 0.395285 0.395285 
      -0.144338 -0.771013 -0.771013 1.23637 -0.791278 -0.327758 
      . . .
    float Velocity[32][3] -7.22837e-33 -5.90241e-17 0.481969 0.403077 
      0.201539 0.116358 0.456809 0.228404 0.131869 0.155023 0.475764 
      -0.417175 0.416389 -0.119249 0.119206 0.193513 0.675701 0.193444 
      -0.0480904 0.0156698 -0.0421682 -0.463116 -0.303254 -0.0480676 
      . . .
    float Potential[32] -0.582861 -0.726016 -0.389024 -0.611265 
      -0.276467 -0.705942 -0.491554 -0.691435 -0.332174 -0.788165 
      -0.519628 -0.725853 -0.430449 -0.625536 -0.196348 -0.556199 
      -0.137574 -0.740651 -0.402583 -0.816317 -0.495621 -0.634114 
      . . .
    float Acceleration[32][3] 0.320830 -0.0112188 -0.0184059 
      -0.0932003 0.296048 0.227969 0.00853122 -0.126000 -0.0768895 
      -0.180052 0.0678517 0.199119 0.0551343 -0.0512566 -0.0223483 
      -0.157876 -0.199445 0.159103 0.124049 0.0825911 -0.223872 
      . . .
  tes
tes

Caveats

It only handles the "std" particles.

All snapshots are converted, use csf(1NEMO) or snaptrim(1NEMO) to extract subsets.

A maximum number of particles (100,000) was hardcoded. It should be noted that H5T_STD_U32LE is stored for the number of particles, limiting the HDF data to 4,294,967,296 particles.

All real (float or double) values are converted to H5T_NATIVE_FLOAT

Does not convert the data history yet

See Also

snapprint(1NEMO) , tsf(1NEMO) , falcON(5NEMO) , snapshot(5NEMO)

Files

src/nbody/io/falcon.c

Author

Peter

Teuben

History


20-apr-2024    V0.1 Created        PJT

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