[OS X TeX] multi cores
Josep Maria Font
jmfont at ub.edu
Sun Dec 13 12:26:29 CET 2009
El 11/12/2009, a les 20:56, Peter Dyballa va escriure:
> Am 11.12.2009 um 18:25 schrieb George Gratzer:
>> Curious. Of the 8 cores on my core i7, typesetting only uses 4.
> Because TeXs not parallel.
According to Apple's Tech Specs page, for the 27" iMac there are,
besides the Core 2 Duo processors, the following two processor
• 2.66GHz quad-core Intel Core i5 processor with 8MB shared L3 cache;
Turbo Boost dynamic performance up to 3.2GHz
• 2.8GHz quad-core Intel Core i7 processor with 8MB shared L3 cache;
Turbo Boost dynamic performance up to 3.46GHz; Hyper-Threading for up
to eight virtual cores
So it seems both processors have 4 real cores, and only when the
software is specially desgined they simulate 8 cores (and TeXShop
doesn't; or is it TeX itself ?). I'm not sure I am interpreting things
Do you think there is no point (or no obvious advantage) in buying the
i7 version ? I am trying to make up my mind beween the i5 and the i7
Thanks for any hint.
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