Hi all, I'm getting started with Julia, looks great.
I was testing the performance for a simple array product *(A*v)* and it depended if *v* is a vector or an array. The matrix version A = randn(400,4000) v = randn(4000,1) y = A*v used one core, while the vector version A = randn(400,4000) v = randn(4000) y = A*v used all 16 cores and was 10x faster. Is there an easy way to know and choose how many cores will be used for a given operation? Thanks! Carlos
