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Doctor John wrote:
> Stephen, when you and I were in school, the slide rule was considered to
> be cutting edge technology :-)
I saw a collection of slide rules yesterday... Of course, the really
"cutting edge" ones were the *spiral* rules. ;-)
I think the most amusing fact was my dad commenting "oh hey, that's the
model of slide rule we used to use at Glaxo. That brown one there..."
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 wrote:
>
> ...OK, WHERE the HELL do you buy something that has 128 CPUs in it?? O_O
> This information surely has a most direct relevance to all who worship
> POV-Ray...!
>
Probably a custom order for an OEM.
Mmm.. 128+ rendering blocks in POV-Ray 3.7 ... Sign me up!
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Mike Raiford <mra### [at] hotmail com> wrote:
> There was somewhere out there a Cray-2 (I think) you could log into via
> telnet and run apps. It had POV-Ray on it already, an older version (2.x
> or maybe 3.0) I ran a basic scene from the samples and was surprised at
> how long it actually took.
The speed of Crays don't come from CPU speed, but from havint a *lot*
of them (as well as fast memory buses, etc).
POV-Ray versions previous to 3.7 do not benefit from a Cray at all.
You get better speed by buying an old PC for $50.
Now, POV-Ray 3.7 is a completely different story.
--
- Warp
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Warp wrote:
> The speed of Crays don't come from CPU speed, but from havint a *lot*
> of them (as well as fast memory buses, etc).
>
> POV-Ray versions previous to 3.7 do not benefit from a Cray at all.
> You get better speed by buying an old PC for $50.
>
> Now, POV-Ray 3.7 is a completely different story.
According to Wikipedia, the Cray-1 does an average of about 136 MFLOPS,
but can peak up to 250 MFLOPS if the code is structured right.
I think in general most "supercomputers" only achieve peak performance
for very specific kinds of workload. Just grabbing the POV-Ray source
code and throwing it at a C compiler is *highly* unlikely to just happen
to produce the right kind of workload.
(As you say, both Cray-1 and Cray-2 work because they're very parallel -
they're vector-processing machines. POV-Ray isn't structured that way.
It could be, but it isn't at present.)
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On Tue, 15 Jul 2008 17:29:08 +0100, Orchid XP v8 wrote:
> .OK, WHERE the HELL do you buy something that has 128 CPUs in it?? O_O
> This information surely has a most direct relevance to all who worship
> POV-Ray...!
http://tinyurl.com/67xzsp
Couldn't resist - but I do wonder if HPC clusters of Linux would work
with 3.7 from a parallel processing standpoint. Similar concept to what
Cray does/did.
Would be pretty cool if it did.
Jim
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Orchid XP v8 wrote:
> Nicolas Alvarez wrote:
>
>> Clarification: you will NOT find a C64 in there.
>
> Really? Nobody has modded their C64 to run this yet?
No, but there is one person who at least *tried* to run it on Windows 3.1
(using Win32s).
Workunits nowadays are long enough that a C64 would *never* make it in time
for the deadline. RAM usage will probably be a problem too. (I don't have
any real numbers handy, and the project is currently down so I can't try it
myself to see how long it takes).
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>> Really? Nobody has modded their C64 to run this yet?
>
> No, but there is one person who at least *tried* to run it on Windows 3.1
> (using Win32s).
>
> Workunits nowadays are long enough that a C64 would *never* make it in time
> for the deadline. RAM usage will probably be a problem too.
Yeah, I know. But you'd be surprised what some crazy nutters try to mod
their C64s to do... ;-)
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 wrote:
>
> ...OK, WHERE the HELL do you buy something that has 128 CPUs in it?? O_O
> This information surely has a most direct relevance to all who worship
> POV-Ray...!
>
http://www.sgi.com/products/servers/altix/4000/
--
Eero "Aero" Ahonen
http://www.zbxt.net
aer### [at] removethiszbxtnetinvalid
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>> ...OK, WHERE the HELL do you buy something that has 128 CPUs in it??
>> O_O This information surely has a most direct relevance to all who
>> worship POV-Ray...!
>
> http://www.sgi.com/products/servers/altix/4000/
"Price: Ask a salesman."
So... the price depends on who you ask? x_x
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 wrote:
>
> "Price: Ask a salesman."
>
> So... the price depends on who you ask? x_x
>
On that level, there ain't much salesmen to ask from. But I'd guess the
price is defined by what the machine actually will be, where it'll be
and how good coffees you offer to the salesman.
But darn, that should be capable of counting (512 pcs of dualcore
Itaniums, mmmm...).
--
Eero "Aero" Ahonen
http://www.zbxt.net
aer### [at] removethiszbxtnetinvalid
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