half datatype?

[xenon325]

On Monday, 19 November 2012 at 15:48:23 UTC, Manu wrote:
> This wouldn't strictly retain half precision though, it would be
> slightly higher precision since the intermediates were full 
> precision
> (which is surely preferable?).

I would think it's actually not preferable.
Imagine you developed and tuned all the code on x86 and 
everything is fine. Then run it on ARM and suddenly all 
computations are inaccurate.