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並前往https://books.google.com.tw/books?id=NdZtCQAAQBAJ&pg=PA240&lpg=PA240&dq=__builtin_prefetch&source=bl&ots=F0unDn8IzB&sig=ACfU3U32ZtHAn5hWFDZvKyYk06w3hqKe0w&hl=zh-TW&sa=X&ved=2ahUKEwjvr-2N0_n1AhXsMewKHfXDDlEQ6AF6BQi-AhAD

Recent Advances in Parallel Virtual Machine and Message ...

We use a special gcc function __builtin_prefetch to issue these prefetch instructions. A special flag, –mcpu, has to be set to compile MPI source code.

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