Slow performance compared to C++, ideas?

[Roy Obena]

On Sunday, 2 June 2013 at 14:34:43 UTC, Manu wrote:
> On 2 June 2013 21:46, Joseph Rushton Wakeling

> Well this is another classic point actually. I've been asked by 
> my friends
> at Cambridge to give their code a once-over for them on many 
> occasions, and
> while I may not understand exactly what their code does, I can 
> often spot
> boat-loads of simple functional errors. Like basic programming 
> bugs;
> out-by-ones, pointer logic fails, clear lack of understanding 
> of floating
> point, or logical structure that will clearly lead to 
> incorrect/unexpected
> edge cases.
> And it blows my mind that they then run this code on their big 
> sets of
> data, write some big analysis/conclusions, and present this 
> statistical
> data in some journal somewhere, and are generally accepted as 
> an authority
> and taken seriously!

You're making this up. I'm sure they do a lot of data-driven
tests or simulations that make most errors detectable. They may
not be savvy programmers, and their programs may not be
error-free, but boat-loads of errors? C'mon.