I benchmarked the following naive matrix multiplication algorithm in both Julia 0.6 and 1.0. Surprisingly, Julia 1.0 version runs 4 times slower. Doing @code_llvm shows very neat output in 0.6 vs. 1.0. Any idea what is going wrong? Why doesn’t @simd work well in 1.0? The times are as follows: 0.…

Naive matrix multiplication is super slow in Julia 1.0?

Elrod August 17, 2018, 2:47am 11

As I pointed out here, Julia can do a really good job “producing C code” for matrix multiplication!

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