load_gauge_field.qlua

function load_nersc(lat, file_name)
  local U, msg
  U, msg = qcd.nersc.read_gauge(lat, file_name)
  printf("# HEADER of %q BEGIN\n", file_name)
  for i, v in pairs(msg) do
    printf("\t%s = %s\n", i, tostring(v))
  end
  printf("# END of %q HEADER\n", file_name)
  return U
end

function load_ildg(lat, filename)
  local U, U_info
  local reader, rinfo
  reader, rinfo = qcd.qdpc.Reader(lat, filename)
  U, U_info = reader:ColorMatrix(#lat)
  -- printf("# %s\n", U_info)
  reader:close()
  return U
end