Using D and std.ndslice as a Numpy Replacement

[Ilya via Digitalmars-d-announce]

On Monday, 4 January 2016 at 01:03:49 UTC, Jack Stouffer wrote:
> On Monday, 4 January 2016 at 00:24:51 UTC, David Nadlinger 
> wrote:
>> On Sunday, 3 January 2016 at 18:56:07 UTC, Jack Stouffer wrote:
>>> I still have to disagree with you that the example I 
>>> submitted was fair. Accessing global memory in D is going to 
>>> be much slower than accessing stack memory, […]
>>
>> What leads you to this belief? (Beyond cache locality 
>> considerations, which are not so important if the data is 
>> large.)
>
> The example in the article and the example I submitted to 
> DlangScience/examples have very different speeds: 
> https://github.com/DlangScience/examples/blob/master/mean_of_columns.d
>
> Article example:                  5 µs
> DlangScience example:  145 µs
>
> Both when compiled with LDC

To be clear: there is NO data in Article example. Only CPU 
registers are used. It is not fair. -- Ilya