On Monday, February 23, 2015 at 3:34:08 PM UTC+1, Dima Pasechnik wrote:
>
> On 2015-02-23, Julien Puydt <julien...@laposte.net <javascript:>> wrote:
> > Le 23/02/2015 15:05, Julien Puydt a écrit :
> >> Le 23/02/2015 14:27, Julien Puydt a écrit :
> >>> That will take some time though : this box isn't fast. And I work on
> it
> >>> while it plays with sage.
> >
> > In fact, when an arch is given, it does compile ad nauseum so it doesn't
> > take that much time.
> >
> >> The box is currently toying with the following patch :
> >>
> >> diff --git a/build/pkgs/atlas/spkg-install
> b/build/pkgs/atlas/spkg-install
> >> index 2d2972e..b5c2808 100755
> >> --- a/build/pkgs/atlas/spkg-install
> >> +++ b/build/pkgs/atlas/spkg-install
> >> @@ -392,6 +392,12 @@ def configure_base():
> >> elif conf['IA64?']:
> >> print('Base configuration on Itanium.')
> >> arch = 'IA64Itan'
> >> + elif conf['ARM?']:
> >> + print('Base configuration on ARM.')
> >> + if conf['processor'] == 'armv7l':
> >> + arch = 'ARMv7'
> >> + else:
> >> + arch = 'ARMv6'
> >> else:
> >> raise NotImplementedError('I don\'t know a "base"
> >> configuration for your cpu.')
> >> return (arch, isa_ext, thread_limit)
> >>
> >>
> >> Does it look good?
> >
> > What about that one :
> > diff --git a/build/pkgs/atlas/spkg-install
> b/build/pkgs/atlas/spkg-install
> > index 2d2972e..7733f65 100755
> > --- a/build/pkgs/atlas/spkg-install
> > +++ b/build/pkgs/atlas/spkg-install
> > @@ -392,6 +392,13 @@ def configure_base():
> > elif conf['IA64?']:
> > print('Base configuration on Itanium.')
> > arch = 'IA64Itan'
> > + elif conf['ARM?']:
> > + if conf['processor'] == 'armv7l':
> > + print('Base configuration on ARMv7.')
> > + arch = 'ARMv7'
> > + else:
> > + print('Base configuration on ARMv6.')
> > + arch = 'ARMv6'
>
I agree with Volker, just put one thing here.
I would say: arch='ARMv6' for base (and arch="ARMv7" for fast if you want
to enable a "fast" configuration).
It would also be good to put ISA="" (don't remember the var name or syntax)
to explicitely disable isa extensions for the base configuration.
I would have to think more to remember what to put for the fast
configuration.
> > else:
> > raise NotImplementedError('I don\'t know a "base"
> > configuration for your cpu.')
> > return (arch, isa_ext, thread_limit)
> >
>
> hmm, shouldn't there also be a distinction between hardware and software
> floats?
>
I'd say no.
If you really want soft floats, then you're on your own.
Same same if you want to build on something < armv6.
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