Thnx for answer @jfix , but I’m a bit confused.
At the moment my model predict_net.pb does not use operators such as Int8Conv and etc.
How do I force my model to use these operations?
Should I change operators such as Conv to Int8Conv manually?
Which file should I change? predict_net.pb or predcit_net.pbtxt?
Example of some op from my predict_net.pbtxt:
op {
  input: "0"
  input: "1"
  output: "497"
  name: ""
  type: "Conv"
  arg {
    name: "strides"
    ints: 2
    ints: 2
  }
  arg {
    name: "pads"
    ints: 1
    ints: 1
    ints: 1
    ints: 1
  }
  arg {
    name: "kernels"
    ints: 3
    ints: 3
  }
  arg {
    name: "group"
    i: 1
  }
  arg {
    name: "dilations"
    ints: 1
    ints: 1
  }
}

Do I have to make changes here or not? Do replace from type: "Conv" on type: "Int8Conv"?
Help me deal with this, please. Thnx.