JAX：コミットメント問題
JAXでCPU上に作成した配列がコミットされていない場合、要素を取得するたびにGPUにデータが移動し、1回のルックアップに1秒以上かかる問題が発生する。jax.device_putで明示的にデバイスにコミットすることで、このオーバーヘッドを解消でき、ルックアップ時間を0.0002秒未満に抑えられる。
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