Performance degradation for higher batch size on PPC64LE

[pratiklp00]

Hi,
While running the large batch size model we have observed the performance degradation. We were able to trace it back to #4920

[martin-frbg]

That's bad but my impression was that it is a question of right vs faster. It is possible of course that it is a specific corner case that needed fixing rather than the algorithm in general, or that #4920 papers over an actual issue elsewhere.

[pratiklp00]

Hi @martin-frbg Thank you for your response. We haven't observed the zgemm/cgemm test failure on PPC64LE. Would it be possible to implement a conditional check for PPC so that we can continue using the previous code? If not, could you guide me on the best way to proceed with this?