I found MKL is ~1.5 times slower than openblas for matrix-matrix multiplication (both without multithreading). Since I’m using intel CPU, I expected MKL to be faster. Is there anything obviously wrong in this benchmark? Or is it not unexpected for MKL to be slower than openblas? using LinearAlgebr…

I can’t reproduce. 7.244 ms (0 allocations: 0 bytes) OpenBLAS 4.748 ms (0 allocations: 0 bytes) MKL (0.5.0) On an 11 days old Julia 1.8.0-DEV with Intel CPU: Julia Version 1.8.0-DEV.1572 Commit 7889b2a6a2 (2022-02-16 21:17 UTC) Platform Info: OS: Windows (x86_64-w64-mingw32) CPU: 8 × In…

MKL slower than openblas in intel cpu

General Usage Performance

ImreSamu February 28, 2022, 5:31am 4

With MKL.jl v0.5.0? (released this 2 days ago)
Could you please test with the new Julia v1.8.0-beta1

1 Like

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MKL slower than openblas in intel cpu

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