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http://www.trustedreview.com/article.aspx?page=2900&head=60
Ingo
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> http://www.trustedreview.com/article.aspx?page=2900&head=60
More than 10x speed increase with just four processors? Crazy!
- Slime
[ http://www.slimeland.com/ ]
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Slime wrote:
>>http://www.trustedreview.com/article.aspx?page=2900&head=60
>
> More than 10x speed increase with just four processors? Crazy!
Well, the POV-Team has repeatedly and very clearly stated that one cannot
compare the benchmark results between different versions of POV-Ray. And
certainly a beta version with plenty of bugs cannot be compared to an older
final version of POV-Ray. As such, the comparison about POV-Ray 3.6 release
and POV-Ray 3.7 beta says absolutely nothing about the speed increase.
Thorsten
____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povray org
Visit POV-Ray on the web: http://mac.povray.org
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Thorsten Froehlich wrote:
> Well, the POV-Team has repeatedly and very clearly stated that one
> cannot compare the benchmark results between different versions of
> POV-Ray. And certainly a beta version with plenty of bugs cannot be
> compared to an older final version of POV-Ray. As such, the comparison
> about POV-Ray 3.6 release and POV-Ray 3.7 beta says absolutely nothing
> about the speed increase.
It might not say anything about what the software is doing, let alone
that it has the same speed increase for every image, but it *does* say
that the image in question *was* created in 1/10th the time. That's
saying absolutely something about the speed increase in one specific
case. Which is still impressive. ;)
--
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------
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Tim Cook wrote:
> Thorsten Froehlich wrote:
>
>> Well, the POV-Team has repeatedly and very clearly stated that one
>> cannot compare the benchmark results between different versions of
>> POV-Ray. And certainly a beta version with plenty of bugs cannot be
>> compared to an older final version of POV-Ray. As such, the
>> comparison about POV-Ray 3.6 release and POV-Ray 3.7 beta says
>> absolutely nothing about the speed increase.
>
>
> It might not say anything about what the software is doing, let alone
> that it has the same speed increase for every image, but it *does* say
> that the image in question *was* created in 1/10th the time. That's
> saying absolutely something about the speed increase in one specific
> case. Which is still impressive. ;)
You missed my point: The image created is not identical due to the mentioned
bugs, and some features are disabled. Hence, the results of comparing 3.6
release with 3.7 beta just have *no* validity whatsoever.
And believe me, I know very well what the real speed of POV-Ray 3.7 compared
to 3.6 currently is. The benchmark is still 10% slower than rendered 3.6
(and that compares the Visual C builds), and there is no magic in there for
the multiprocessor case - you get four times the speed of a single threaded
render, not more.
Thorsten
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> You missed my point: The image created is not identical due to the
> mentioned bugs, and some features are disabled. Hence, the results of
> comparing 3.6 release with 3.7 beta just have *no* validity whatsoever.
Meh. Even *I* can create a program that will draw a picture faster than
POV-Ray. Sure, the resulting image won't actually be the same, but it'll
be faster... ;-)
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