1.Is it essential to train every level of the hetero with "--level" from 1 to 5?
2.Is it essential to set the argument "--restore=True" when "--level">=2?
3.If ValueError "[[nan,nan,nan,...,nan,nan],...,[nan,nan,...,nan,nan]" is raised,and logger warns "NaN or Inf in input data",should I restore the model from lower level or retrain the model from level=1?
1.Is it essential to train every level of the hetero with "--level" from 1 to 5? 2.Is it essential to set the argument "--restore=True" when "--level">=2? 3.If ValueError "[[nan,nan,nan,...,nan,nan],...,[nan,nan,...,nan,nan]" is raised,and logger warns "NaN or Inf in input data",should I restore the model from lower level or retrain the model from level=1?