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From: andrel
Subject: Re: And just in case you had a big POV job to trace...
Date: 14 Jul 2010 17:46:04
Message: <4C3E3022.3040404@gmail.com>
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On 14-7-2010 17:17, Darren New wrote:
> Invisible wrote:
>> And my point is "where the **** do you get a system that can handle
>> more than 16GB of RAM from?!"
>
> http://tinyurl.com/25z4y9r
>
or e.g. http://www.sgi.com/pdfs/4185.pdf
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From: Le Forgeron
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 02:35:02
Message: <4c3eac16@news.povray.org>
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Le 14/07/2010 17:51, Jim Henderson nous fit lire :
> On Wed, 14 Jul 2010 09:11:04 +0100, Invisible wrote:
>
>>> Sure, but the system may well have 128 GB of memory installed in it
>>> (for example), and only 23 GB allocated to that specific machine -
>>> that's my point.
>>
>> And my point is "where the **** do you get a system that can handle more
>> than 16GB of RAM from?!"
>
> GIYF. ;-)
>
> Hint: It's not your typical off-the-shelf desktop PC. We're talking
> very specialized hardware here.
Well, a 24GB system is expensive but main-street now.
(I built one in june): based on i7 implied triple channel memory, and
therefore most single i7-supporting motherboard are limited to 24GB.
Finding a set of 6 Ram-stick to fill the slots is rather easy too, as
memory-maker/seller make kit ready to install (and with warranty).
Motherboard: about 200€
Memory: about 800€
CPU: anywhere from 200 to 1000€
Box: from 50€ to 200€ (according to the cooling and other
easy-life-making: hand-screw, clip-on...)
and so on for the small details (mouse, keyboard, graphics card(s),
display...)
There you go, a system with more than 16GB.
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From: scott
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 02:36:31
Message: <4c3eac6f@news.povray.org>
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> GIYF. ;-)
>
> Hint: It's not your typical off-the-shelf desktop PC. We're talking
> very specialized hardware here.
What like this:
http://www.ebuyer.com/product/173974
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From: Invisible
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 03:45:54
Message: <4c3ebcb2$1@news.povray.org>
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Darren New wrote:
> It was funny, tho. I read someone talking about all the "nosql"
> databases, and how people were complaining SQL doesn't "scale". He said
> "SQL scales fine. What the people mean is that SQL doesn't scale if you
> want to use a commodity piece of hardware like Amazon rents. This is
> what we have in my office for testing:" and gives the stats on a 96-CPU
> 256G RAM SQL processor. He says "That's the low-end base machine for
> testing, not the production system."
Presumably that's not x86 though.
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From: Darren New
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 11:11:43
Message: <4c3f252f$1@news.povray.org>
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Invisible wrote:
> Presumably that's not x86 though.
I didn't look into it that deeply. Why would you think it's not?
--
Darren New, San Diego CA, USA (PST)
C# - a language whose greatest drawback
is that its best implementation comes
from a company that doesn't hate Microsoft.
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From: Invisible
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 11:32:12
Message: <4c3f29fc$1@news.povray.org>
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>> Presumably that's not x86 though.
>
> I didn't look into it that deeply. Why would you think it's not?
I got the impression that x86 CPUs are designed to communicate with only
a fixed number of peers.
For example, a socket 939 Athlon can only be run in a single-chip
configuration. But a socket 940 Opteron has an extra pin which enables
it to run in single-chip or dual-chip configuration. (But not
triple-chip or more.) In later Opteron generations, part of the model
number tells you what the maximum number of chips you can wire together
is. I gather Intel Xeon chips use a similar system.
Given that the reviews talk about 1-chip, 2-chip, 4-chip and even
8-chip, I very much doubt anybody has bothered to design a 96-chip part.
Who would they sell it to, after all? (And wouldn't it need 96 extra pins??)
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From: Warp
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 12:06:34
Message: <4c3f3209@news.povray.org>
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Darren New <dne### [at] san rr com> wrote:
>
http://aws.typepad.com/aws/2010/07/the-new-amazon-ec2-instance-type-the-cluster-compute-instance.html
> Rent a quad-core 2HT 2.93GHz 23G RAM 1.5TB disk compute engine for $1.60/hour.
I wonder if POV-Ray 3.7 could be compiled for this monster:
http://en.wikipedia.org/wiki/Jaguar_%28computer%29
It has more cores than the maximum number of threads POV-Ray would use for
an average-sized image (iow. you basically get a core for each square to which
the image is subdivided by POV-Ray for rendering).
A giant poster-sized image could perhaps require rendering more than one
square per core...
--
- Warp
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From: Darren New
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 12:21:32
Message: <4c3f358c@news.povray.org>
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Warp wrote:
> A giant poster-sized image could perhaps require rendering more than one
> square per core...
I think the first job should be rendering a 300 DPI 1:1 scale image of the
computer it ran on. :-)
--
Darren New, San Diego CA, USA (PST)
C# - a language whose greatest drawback
is that its best implementation comes
from a company that doesn't hate Microsoft.
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From: Mike Raiford
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 13:05:31
Message: <4c3f3fdb$1@news.povray.org>
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On 7/14/2010 12:09 PM, Darren New wrote:
> Jim Henderson wrote:
>> Well, yeah - but I'm not going to find it going to the local Best Buy,
>> that's what I mean. :-)
>
> It is indeed not a "Personal Computer" sort of thing. :-)
>
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6426353&Sku=E145-2082
I'm thinking one that supports 4-way SLI is probably a gaming system. ;)
Supports up to 48GB of ram, dual hex-core xeons ... yeah..
A bit pricey, though.
--
~Mike
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From: Mike Raiford
Subject: Re: And just in case you had a big POV job to trace...
Date: 15 Jul 2010 13:38:21
Message: <4c3f478d$1@news.povray.org>
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On 7/15/2010 10:32 AM, Invisible wrote:
>>> Presumably that's not x86 though.
>>
>> I didn't look into it that deeply. Why would you think it's not?
>
> I got the impression that x86 CPUs are designed to communicate with only
> a fixed number of peers.
http://www.cray.com/Products/XT/Specifications.aspx
Opterons ... x86 ;)
http://www.ewiz.com/detail.php?p=MB-H8DGUF&c=fr&pid=ea8e96795a53689a8306610b250b775faaf92905edde9d71f42a3e02a2c3931c
So, its a dual chip mobo ... unless you make it yourself like Cray ...
24 cores is probably enough.
> Given that the reviews talk about 1-chip, 2-chip, 4-chip and even
> 8-chip, I very much doubt anybody has bothered to design a 96-chip part.
> Who would they sell it to, after all? (And wouldn't it need 96 extra
> pins??)
Cray has, but then, it's a purpose-built machine.
--
~Mike
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