現代の産業や先端研究で重要なステンシル計算は、格子点の近傍加重和で反復更新する。天気予報や地震探査、電磁シミュレーションに広く用いられ、メモリアクセスが膨大で帯域が律速となり、実行時間の大半を占める。その速度が全体性能を左右する。....
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