"cpu backend was already registered" during import/require tfjs + tfjs-node-gpu

TensorFlow.js version

0.13.0 tfjs-node-gpu 0.1.17

Browser version

N/A - Node 10.10

Describe the problem or feature request

require('@tensorflow/tfjs');
require('@tensorflow/tfjs-node-gpu');

or

require('@tensorflow/tfjs-node-gpu');
require('@tensorflow/tfjs');

print the warning:

cpu backend was already registered. Reusing existing backend

It’s very minor ofc but damn annoys much.

[nsthorat]

This could be an issue with double importing of tfjs.

Can you show what your package.json dependencies look like? You don’t need to import @tensorflow/tfjs directly, @tensorflow/tfjs-node will do that for you.

[obenjiro]

Changing package.json to this: (excluding @tensorflow/tfjs)

"dependencies": {
    "@tensorflow/tfjs-node": "^0.1.17"
}

Running npm install and using

import * as tf from "@tensorflow/tfjs";
import "@tensorflow/tfjs-node";

fixes the issue for me