atlas on arm
Greetings! Here is a piece of a post regarding difficulties compiling
atlas on arm I recently submitted to the atlas mailing list. I'd
appreciate any thoughts.
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> 4) (longer term) I've been unable to compile atlas on arm for years.
> The rusage cpu timer is dysfunctional, and -DWALL gives
> unrepeatable timings which can't be boiled down within tolerance.
> The floating point performance by default is ridiculous when
> compared to the speed of the cpu (possibly the real source of these
> problems), and I can only surmise that in its minimal configuration
> floating point is emulated.
>
> Later generations of the cpu with
> vector floating point instructions and respectable performance
> appear to exist as well. ARM chips underly (most?) Linux pda's.
>
> I'm just putting this out in case someone knows this arch, can fill
> in the details, and suggest a possible atlas strategy for a distro
> like Debian. We already have the infrastructure to toggle between
> subarch optimized builds at runtime.
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Take care,
--
Camm Maguire camm@enhanced.com
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"The earth is but one country, and mankind its citizens." -- Baha'u'llah
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