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Re: Musing about numbers
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From: |
Sergei Steshenko |
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Subject: |
Re: Musing about numbers |
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Date: |
Thu, 20 Feb 2014 16:13:21 -0800 (PST) |
----- Original Message -----
> From: ghaverla <address@hidden>
> To: Octave Help <address@hidden>
> Cc:
> Sent: Friday, February 21, 2014 2:03 AM
> Subject: Musing about numbers
>
> [snip]
> But if the object is to write portable code in whatever
> language, at times it doesn't seem to be easy.
>
> Gord
>
Optimization is compiler-dependent. So, I do not think you can achieve your
goal of portable speed. That's why there are automatically tuned packages like
FFTW and ATLAS.
...
Yes, if you add FP numbers, in order to decrease accuracy loss start adding
from numbers with smaller absolute values.
Regards,
Sergei.