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Re: IDL 6.3 for Mac OS X on Intel Now Available [message #49315 is a reply to message #49312]

Thu, 13 July 2006 12:09

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Thu, 13 Jul 2006 21:00:44 +0200, Fï¿½LDY Lajos wrote:

> Hi,
>
> a little FL promotion :-)
>
>
> On Thu, 13 Jul 2006, JD Smith wrote:
>
>> it's *FAST*. Here's the breakdown for some portable OSX systems,
>> following along the tests at:
>>
>> http://idl.tamu.edu/mac_bench.php
>>
>> System TT3 (AVG) TT3 (GEOM) JD_TEST
>> ============================================================ =================
>> PB (G4 1.67GHz, 2GB, PPC IDL native) 3.20 .13 1.86
>> MBP(CoreDuo 2GHz, 1GB, PPC IDL via Rosetta) 3.45 .13 3.02
>> MBP(CoreDuo 2GHz, 1GB, i386 IDL native) 1.69 .06 0.32
>
> FL (64 bit linux) on a dual 1.8GHz Opteron 0.57 .02 0.13
>
> not bad :-)
>
> for FL, TT3 includes assoc test (0.02 s), and running JD_TEST as
>
> a=randomu(sd,100L*100000l)
> t=systime(1) & a=sqrt(a)/(a>0.5) & print,systime(1)-t
>
> (!CPU.TPOOL_MIN_ELTS is 0 by default in FL, because FL uses different
> limits for different operations (eg 100000 for addition, 25000 for sin))
>
> and another good news: the new Intel Core 2 processors will have more
> SSE/SSE2 execution units, so FL will be even faster.

Impressive. How much of FL's performance gain comes from compiler
optimizations? I am suspect of speedups in operations limited by
looping, since FL and GDL don't yet implement widgets or other even
processing which slows IDL's loops down. However, just taking the
square root of a bunch of numbers.... that's a different question.

What are the plans for FL? Any hope of combining the two efforts
(FL/GDL) into one open source project?

JD

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[Message index]

		Re: IDL 6.3 for Mac OS X on Intel Now Available By: Paolo Grigis on Fri, 14 July 2006 01:00
		Re: IDL 6.3 for Mac OS X on Intel Now Available By: FL on Thu, 13 July 2006 13:10
		Re: IDL 6.3 for Mac OS X on Intel Now Available By: Karl Schultz on Thu, 13 July 2006 13:03
		Re: IDL 6.3 for Mac OS X on Intel Now Available By: JD Smith on Thu, 13 July 2006 12:09
		Re: IDL 6.3 for Mac OS X on Intel Now Available By: Foldy Lajos on Thu, 13 July 2006 12:00
		Re: IDL 6.3 for Mac OS X on Intel Now Available By: JD Smith on Thu, 13 July 2006 11:15

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