https://github.com/moble/gridrefinement

Code used by the NINJA collaboration to reduce file sizes for gravitational waveforms
https://github.com/moble/gridrefinement

Last synced: 3 months ago
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Code used by the NINJA collaboration to reduce file sizes for gravitational waveforms

• Host: GitHub
• URL: https://github.com/moble/gridrefinement
• Owner: moble
• Created: 2020-01-16T17:02:38.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2024-10-25T17:21:01.000Z (about 1 year ago)
• Last Synced: 2025-10-02T06:41:06.686Z (3 months ago)
• Language: C++
• Size: 7.81 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

          
These two programs simply translate between a minimal waveform and

a uniform-timestep waveform.  Compilation is trivial -- 'make'

should work.

Then, given a single waveform data file (one L,M mode), you can

compress the file with something like

  MinimizeGrid FileName.dat

This will output FileName.dat.minimal, which can then be

reconstituted with something like

  ReconstituteGrid FileName.dat.minimal

For multiple L,M modes, just use xargs.  Maybe

  ls *dat | xargs -t -n 1 MinimizeGrid

  ls *minimal | xargs -t -n 1 ReconstituteGrid

More details and further options are given by

  MinimizeGrid --help

  ReconstituteGrid --help

In particular, note that the tolerances can be set on MinimizeGrid.

For example, if you want the reconstituted grid to be within 1e-5

of the original, you can enter

  MinimizeGrid FileName.dat 1e-5

You can also enter separate tolerances for the amplitude and phase:

  MinimizeGrid FileName.dat 1e-6 1e-7

Here, 1e-6 is the tolerance on the amplitude and 1e-7 is the

tolerance on the phase.