Sweetness. Thank you. AbstractArray it is for me!
On Wednesday, 21 October 2015 16:29:28 UTC-7, Tim Holy wrote:
>
> On Wednesday, October 21, 2015 03:32:04 PM Gabriel Gellner wrote:
> > * I can't use LinSpace in matrix mult A * b::LinSpace, is this simply a
> > Bug/Missing Feature?
>
> Yes
>
> > * LinSpace objects seem much slower when used in things like element
> > multiplication A .* b::LinSpace is much much Slower than A .* b::Array,
> is
> > this to be expected (the cost of the extra abstraction lack of required
> > denseness) or simply a side effect of lack of optimization?
>
> It's because we can't yet eliminate bounds-checks with @inbounds on
> anything
> except Arrays.
>
> > * In general if I make my code accept AbstractArray{Float64} in general
> > should I expect a performance penalty when calling the function with
> > Array{Float64} parameters?
>
> None whatsoever. The only place that's a bad idea is in declarations of
> type-
> fields, see
> http://docs.julialang.org/en/latest/manual/performance-tips/#avoid-fields-with-abstract-type.
>
>
>
> --Tim
>
>
