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                                            Werner Saar

OpenBLAS 6 times slower than MKL on DGEMV()

HI, I need more informations. 1. what platform or target 2. is the matrix transposed or not transposed ( because different kernels are called ) 3. size of the matrix...

OpenBLAS 6 times slower than MKL on DGEMV()

Hi, I ran dgemv benchmark tests on our Haswell machine (Linux) in our lab. MKL dgemv is always single-threaded on this platform, OpenBlas is multithreaded. For matrix sizes from 256x256...