performance: single thread looks OK while multi-thread poor .

performance: single thread  looks OK while multi-thread ( 8 threads)  poor .as compared to linux64.

arm machine is with 64-core.  it's verified that 8 threads are started. but why is performance much slow?

Thanks

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  • Dear Willy,

    Thank you for replying. 

    As for the item 2 you mentioned about, our flow works well on Intel MKL lib, while the same engine seems poor on arm lib for Multi-thread. 

    I am wondering what's the difference between libarmpl.a and libarmpl_mp.a?  Any special is required of linking libarmpl_mp.a in user's engine?

    Thanks

    Best Regards,

    DaBang

Reply
  • Dear Willy,

    Thank you for replying. 

    As for the item 2 you mentioned about, our flow works well on Intel MKL lib, while the same engine seems poor on arm lib for Multi-thread. 

    I am wondering what's the difference between libarmpl.a and libarmpl_mp.a?  Any special is required of linking libarmpl_mp.a in user's engine?

    Thanks

    Best Regards,

    DaBang

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