Unable to use multi GPU with tensorflow recommender

[H_M]

I want to train recommender model by multi GPUs.
I used this tutorial code " [

Recommending movies: retrieval with distribution strategy

](फिल्मों की सिफारिश करना: वितरण रणनीति के साथ पुनर्प्राप्ति  |  TensorFlow Recommenders)"
,
but my 2nd GPU’s utilization is around 1~2%.(1st GPU’s utilization is around 40%)

How can I get the second GPU to work properly?

[Wei_Wei]

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Recommending movies: retrieval with distribution strategy  | ...