On 17/12/15 12:06, Francesc Alted wrote:
Pretty good. I did not know that OpenBLAS was so close in performance to MKL.
MKL, OpenBLAS and Accelerate are very close in performance, except for level-1 BLAS where Accelerate and MKL are better than OpenBLAS.
MKL requires the number of threads to be a multiple of four to achieve good performance, OpenBLAS and Accelerate do not. It e.g. matters if you have an online data acquisition and DSP system and want to dedicate one processor to take care of i/o tasks. In this case OpenBLAS and Accelerate are likely to perform better than MKL.
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