• fwi_params.txt:

  lenz: physical domain size in z dimension (meters)
  lenx: physical domain size in x dimension (meters)
  leny: physical domain size in y dimension (meters)
  vmin: minimum wavelet velocity (expected) (m/s)
  srclen: (not in use)
  rcvlen: (not in use)
  nshots: number shots
  ngrads: number of gradient iterations (typically, under 20)
  ntests: number of test iterations (typically, between 7 and 10)
  slavemem: memory (in GB) of slave nodes
  workermem: memory (in GB) of worker nodes
  shotdirectory: path for storing local IO output
  

• fwi_frequency.txt: contains a list of frequencies to simulate:

  1.00
  2.00
  etc...
  

• fwi_shcedule.txt: generated file using fwi-sched-generator and fwi_params.txt + fwi_frequencies.txt files

  nfreqs
  nshots
  ngrads
  ntests
  outputfolder
  freq forws backs stacki dt dz dx dy dimmz dimmx dimmy ppd nworkers
  

When PERFORM_IO is enabled, data is initialized from files present in data/inputmodels. Those files are generated using the fwi-data-generator.