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Own a Piece of An Apple-Based Supercomputer
Graff writes "Now that Apple has come out with the Xserve G5, Virginia Tech has been swapping out parts of their 'System X' supercomputer for the more compact 1U Xserves. MacMall is selling some of those System X component G5 systems with an approximate $200 savings and an extra 512 megs of RAM over a normal G5. You can read more about it at MacCentral."
I bag the 'go-faster' stripes on the case !
"I am not bound to please thee with my answers" [William Shakespeare]
or not
"Academicians are more likely to share each other's toothbrush than each other's nomenclature."
Cohen
The latest desktop Pentium will without fail beat this supercomputer every time.
I wish there was some kind of engraving on the aluminium casing stating something like "Virginia Tech, Supercomputer node #758 - 2003" Then they could definitively sell it at a Premium. I mean I can get this kind of computer off ebay for more or less the smae price. I need some kind of souvenir that it's from Virginia. How about sending it through the IPOD engraving shop?
Artificial intelligence is no match for natural stupidity
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can i just have the people who made the system?
Pls No Negative Modding!
Only 6 months of use out of these things and VT is tossing them out like yesterday's trash. Gee, thanks for doing this after delaying my order for 6 weeks back when the G5s were originally supposed to be shipping to the rest of us. Apparently you didn't need them that badly after all.
8==8 Bones 8==8
It is nice to see the inclusion of PCI-X, we can hope that this is the start of the end of "old" PCI. I was a bit confused by the decision to include Firewire in this machine. I know it is an apple kind of penchant, but surely a server won't need firewire. Who wants to use a firewire hard disk with a server? You're more likely to back up onto tape. It seems akin to a High End commodity intel server having an Audigy sound card with optical out, I don't think there is much point. I think some of the features could have been thought about more on the machine rather than lamely following the tradition of previous iMACs. However, it looks like a great machine, and Mac is coming up in mine, and many other x86 users (I believe) opinions.
tim
romeo and juliet 2: juliet lives
a three act play by jimmy o'leary
authorized by the estate of william shakespeare
act 1, verona, italy, the date is september 11 2001, it is an unusually hot day and the italians are out on the street milling about and buying shit from street vendors and whatever the fuck it is that italians do all day i've never been able to figure it out myself, a shopkeeper comes out and yells to the crowd out on the street
shopkeeper: america has been attacked, four planes crashed into it
crowd: gasp
the crowd stampedes to the shopkeeper's shop to watch the news because he is the only person in a five mile radius with a television set, in the process they tear up some cobblestones from the street and a mad scientist walking by notices something very odd
mad scientist: well i seem to have noticed something very odd
the mad scientist pulls up on the cobblestones and discovers a hidden trap door underneath the streets of verona, he opens the door and finds a hidden tunnel deep beneath the city, he follows the tunnel to a crypt and finds a very well preserved body
mad scientist: omfg, what a find, i must take this back to my lab and experiment on it
the mad scientist takes the body back to his lab
act 2, the mad scientist's lab, it is pretty dark and there's all sorts of test tubes and bottles churning and bubbling and shit, the mad scientist has put the body on a table and is doing an autopsy to figure out what happened to her
mad scientist: jesus christ this bitch looks like she stabbed herself but she is very well preserved so maybe i can bring her back from the dead
the mad scientist takes some jumper cables and attaches one end to the body's ears and the other end to the battery terminals on a rusted out 1969 plymouth fury, he gets in the car and starts it up and the body jumps up immediately
body: omfg jesus christ wtf
mad scientist: i have brought you back to life what is your name
body: my name is juliet, what time is it
mad scientist: it is just past noon, the date is september 11 2001
juliet: hahahaha ror
mad scientist: no really i'm serious
the mad scientist takes juliet around and shows her all sorts of things like cell phones and computers and tells her everything that has happened in the 10000 years that she has been dead, juliet is very impressed by all of this and thanks the mad scientist profusely for bringing her back to life
act 3, kandahar, afghanistan, scores of camels are feeding on camel chow outside of a small tent in the afghanistan desert, inside the tent several key al qaeda leaders are holding a staff meeting
mullah omar: the attack went precisely as planned my lord
osama bin laden: omfg ror lolf
ayman zawahiri: however there is disturbing news from our operatives in italy
mohammed atef: yes it appears that the ancient one has been revived and is now among the living
osama bin laden: jesus christ this means that the dreaded prophecy has come to pass omfg what will we do we must do something about this now before the situation is allowed to become complicated
all of the al qaeda guys get into a huddle and there are several minutes worth of feverish whispering in arabic, then they all break from the huddle and look expectantly at bin laden
bin laden: here is what i propose
act 4, u.s.s. warren g. harding, a supermassive united states aircraft carrier stationed 190 miles southwest of the coast of sri lanka, warplanes are taking off and landing at a rate of two per minute, general fridley m. happenstance is in the control room going over the latest intelligence reports from the pentagon with a determined look on his face, a courier from the dia arrives and gives him a telegraph from washington d.c.
general happenstance: omfg do you know what this means
courier: no
general happenstance: they have activated operation plinko planko plonko that
Did Virginia Tech's System X have any impact on Apple release the Xserve G5?
/still pissed at Dell for not offering Athlon's, I wanted a 64 bit processor and AMD and Apple were the only companies offering them three months ago
Did the Xserve get any benefit from the optimization of the Big Mac?
Is Virginia Tech going to lose money on this deal?
If what you are reading sounds funny, or sarcastic, lame, or stupid
it is because it is supposed to be. just laugh
As someone else noted, if they were engraved or etched or something that would make them special.
Arggggh! Let me rant a little more. Lend me your ears. Why do people alow for this? Why do people buy stuff that has false advertising? There were times I recieved an advertising in the mail for some computer part at a great price, and I run to the store to find the price in the advertising is after mail in rebates. In this case, it was a router for $49 after a $100 mail in rebate.. But you would have to search the small legal print to find the $100 dollar rebate in the advertising.
Why oh why do companies use mail in rebates? I HATE mail in rebates. I will not buy products that have mail in rebates. What is wrong with advertising the real price in BOLD, not the sale price, and listing the mail in rebates in smaller font under the real price?? Sometimes I think computer stores do things like this just to get people in the doors.
Rosco: "If brains were gunpowder, Enos couldn't blow his nose."
Why couldn't VT hold their horses? ...)
my bet is... they could.
no one likes building any cluster (not to mention a supercomputer) out of desktops, esp. ones configured like desktops (gfx, no ecc,
but apple really wanted the PR of having the computer cluster, and perhaps to list the revenue in 4Q2003.
so i can't blame them - looks like a fair deal.
They will probably make quite a decent profit out of this, despite the $200 discount. They must have got pretty decent discount from apple for both bulk buying and promotion. And any self respecting geek will want one of these over a stock G5
If I seem short sighted, it is because I stand on the shoulders of midgets
I'm lazy, somebody POST A STORY ABOUT THIS ON SLASHDOT!!!
s p
http://www.pcmag.com/article2/0,4149,1460599,00.a
Although, I agree that a bit of engraving would go some way towards supporting their value. Is there anything at all, beyond that 1 sentence on the website, for a purchaser to establish that they really do have one of the Virginia Tech machines?
'Never buy the first version of anything' - even if it is $200 less than list price, has been well looked after, comes with an extra 512Mb and used to be part of a supercomputer. Rev2 or 3 is always a better purchase.
"This is crazy, you realise we could all go to jail for this?" - my manager, somewhere I used to work.
Interesting story! HERE'S the link. Just click.
Should that be a concern? Do these 6 month old computers already have 2-3 years of typical mileage on some of their components?
Fine, I pointed out that was after a $99 dollar rebate for the RAM and a $40 installation fee. Then I was modded down. Hmmm.
What I would like to know is if the owners of this site get money for some of the stories they post. I wonder, because what I posted about the fee was vaild, yet it was marked off topic. If they get money based on some stories, then I would probably go elsewhere for my news.
Rosco: "If brains were gunpowder, Enos couldn't blow his nose."
This is an educational and research establishment, not a commercial enterprise.
/.) that Virginia Tech would have sold the units to students, freshmen, whatever, at a knock down rate. Or even used a ton of them within the university itself.
You'd have thought (as some students were hinting here at
Yet more profiteering from a supposedly educational institution.
Quit flattering yourself, cockgobbler
fuck you HOMO!
Fuck off apple fag!!! (see how I write apple without capital A - I hate the fag computer so much)
first post!!! you lame assholes... I can post first because my XBox is a american product and my pride in my great country and my great XBox accelerate everything...
If only they would make games for that bitch... IAve played Metroid Prime and it ruled... I hope M$ will buy those japanese bastards and port Metroid to my great american console system!!!
Not to mention that PowerPC chips "load" non-linearly compared to other architectures -- that is, they become far less efficient at, say the top 8-10% of CPU usage time, both electrically and logically. If true, this could definitely shorten their lifespan if it causes excessive heat stress.
Unfortunately, I don't have anything to back that up. Occasionally Google is not so friendly.
Karma: Positive (mostly due to rash moderations)
Chances are they purchased the original G5s at a nice discount (and a cost to Mac users who ended up waiting much longer for their G5s). Their are selling them for $2799 now, without a modem. VT G5s have 1GB of RAM, but the machines must be pretty beat up considering their were a part of a Super Computer that was up 24/7 crunching numbers etc. Massive wear and tear that can not be compared to regular refubs from the Apple store (computers that were used by "normal" people on a day to day basis). Keep in mind that Apple had VT G5 equivalents in their refub section a few weeks ago for $2400.
Also, it appears these machines are promoted as a "part of history", hardly so considering that there is no way to tell that they were a part of VT cluster.
Is there a warranty on these machines? Do people have to buy Apple Care themselves? Considering what these machines went through in the past 6 months these are valid questions people need to ask.
In Soviet Russia the supercomputer owns a piece of YOU!
oo..damn.. it was!
The G5 XServe is in no way shape or form an iMac descendant! Wash out your mouth!
They've been sat in a rack, processors happily humming away, and are probably nicer than you'll buy in a shop.
If brains wore out as fast as processors, yours would still be useful.
oh brave new world, that has such people in it!
I could use dual 64bit PPC rackmount boxes, but I want to run linux god damn it! Why do they have to sell these with OSX, what possible fucking advantage is Aqua going to provide when I ssh in to patch something? What is the point of paying for (32bit) OSX on a machine stuffed in a 19" rack with 60 others exactly like it? Looks like the dual X86-64 box after all...
What's this? Regardless of the clever title, this is nothing more than a plug for MacMall. Is this a hint at a new Slashdot business model?
Is Slashdot trying to become the next FatWallet.com or TechBargains.com? Either of those sites seem to be far more suited for this sort of "news" than Slashdot.
Apple's online store is charging $2399 for refurbed dual G5s, and the student store's price for a new dual G5 is $2699, $100 less than the MacMall refurbs from Tech. You can even take $26 more off for getting rid of the internal mode, which the supercomputer refurbs don't have either.
Even if you add the extra 512 megs of RAM from Apple's site (where prices aren't the best), these Va Tech refurbs are only $100 less than what a student would spend on the same box new. Not to mention these 2 GHz duallies are rated as "Buy only if you need it - Approaching the end of a cycle" on the Macrumors buyers' guide page.
So not a deal at all if you're a student (though I have to think students at Va Tech could get the inside track on the boxes -- anyone know?) and not a great price for a refurb if you're Joe Schmoe. And not a box with great longevity, relatively speaking, either, if Macrumors has the lifecycle pegged.
Wait for a processor speed bump unless you're dying to own a little bit of celebrity.
It's all 0s and 1s. Or it's not.
What would be spiffy if there was a way that they could do SOME of the math on the GPUs. I never saw a product that could do that, but it would be rather fast. No?
Never hit your grandmother with a shovel, for it leaves a bad impression on her mind...
The Supercomputer title is coming back to the USA.
Look at the facts:
1: The G5 towers are getting replaced one for one
2: 2/3 rack space available w/cooling
3: Steve Jobs ego
Need I say more? Buy a PowerMac node, even if you have to buy a Airport Base station and the Card.
A Lisa 1 sold on ebay for $10,000
I beg to differ. I believe that the G5 XServe is an iMac decendant, in the same way that we are decended from somethingopithicus and will continue to evolve into pure being of light. [this neatly ties in all three /. stories, beat it if you can. 1.this story. 2.light chips. 3.culture in animals.]
"Persistance is Fertile" - Me. I can quote myself if I want to.
Really Bones, as a admin for Thinksecrete, who makes his living from Apple, you should be happy for your computer company.
Hey, that's cool. Where else could you get G5s with ECC memory so cheaply?
They do have ECC memory, right? Having been part of a supercomputer....
The Big Mac was so fast, they didn't need no steekin' ECC memory... they just ran calculations multiple times to ensure accuracy.
The G5 xServes that will be replacing the towers do take ECC, so expect Big Mac 2 to be even more of a force to be reckoned with since it won't have to check its work.
As I understand it there are two main reasons for mail-in rebates:
As stated before, some people (particularly the well-to-do and businesses) will neglect to send them in, which is basically money in the seller's pocket. The smaller the rebate, the more people tend not to bother.
Also, an important factor for large companies that are constantly processing a large number of rebates is the "float" on the rebate. That is, between the time that you give them your money and they give you your rebate, the company can use your money to earn intrest and other kinds of returns. I recall there were some poorly thought out business plans that were attempting to use this as a sole sorce of profit a few years back. Also, this can be used in many accounting gimmicks, making revenues seem to increase more than they would after rebates have been taken into consideration and increasing funds on hand.
My guess is that both they and Apple wanted to have a spot on the last Top 500 list, with all the associated press at the Supercomputing 2003 conference. Apple's been trying to convince somebody, anybody to build a large HPC cluster with their hardware since the G3 came out. Until the G5 came out, it made very little sense economically -- the per-system price for Apple kit was 30-40% more than comparable Intel-based stuff, and the memory bandwidth and 64-bit floating point performance was the same or worse. The G5 fixed that, for the most part
Nobody in their right mind wants to build a cluster out of machines in desktop/deskside chasses. We've done it once, with the first generation Itanium systems where there was no rackmount option for a 2-way box, and we'll never do it again -- remote management of those machines was and is actively painful. (Our 1st-gen Itanium cluster is out of production service now, but it's been partitioned up into smaller clusters at universities around the state as part of the Cluster Ohio project, which we still manage.)
"My life's work has been to prompt others... and be forgotten." --Cyrano de Bergerac
Have you read about this at all?!?! Geez!
Apple had to rush them out to VT at VT's request, because there was an October 1st (or 2nd?) deadline for this year's top supercomputers list. If they had been delayed, they would have to wait until next year, at which point there would be faster G5s (and Athlons, etc). They saw a sweet timing on the release of the G5, so they (they being Virginia Tech, not Apple) went for it.
Just RTFAs!
Lose essential liberties to get temporary safety = get only hassles and security theater.
Just reading through the posts on what should be a rather innocuous story it is amazing to listen to the bitterness the VT Apple G5 cluster evokes in the die-hard x86 crowd.
There are a hell of a lot of x86 folks who base their identity on the myth that anything from Intel(or AMD) is always faster and cheaper.
They used to run all simulations twice to verify the non-ECC RAM was returning the desired result. As a consequence the system will speed up two-fold in real life use. Now that is a performance gain!
anyway if you look at the specs you can see all the silly stuff.... that cluster does not need 1100 Superdrives, or 1100 Radeon 9600 cards..... let alone size and whatnot... i'm sure it was done because the Xserves were just too far off and it was the only machine out there with the G5/970 chip for sale to anyone.
look at the specs:
The systems sold by MacMall are listed as 2.0GHz Power Mac G5s equipped with 1GB DDR SDRAM (2 512MB memory cards); equipped with 160GB ATA drives, a SuperDrive, ATI Radeon 9600 Pro graphics processor, Gigabit Ethernet, 3 USB 2.0 ports, 2 USB 1.1 ports, 2 FireWire 400 ports and 1 FireWire 800 port, along with an AirPort Extreme card slot and no modem -- in other words, a stock Power Mac G5 Dual 2GHz system with a memory upgrade from 512MB to 1GB
it does seem the pulled the fibre cards out... they are optional in Xserves... maybe they just swapped those? i don't know if they are the same in both machines normally.
And an original Lisa sold from Apple for $9,999. Hmmm. $1 profit. There's your return on investment.
ah, the Opteron may not be as fast, but it does have a multiply and accumulate instruction , as does the Pentium series starting with the MMX extensions.
I don't want to start a holy war here, but I need to vent guys and here I hope I find sympathy! I HATE MAC'S
Today I spent the good part of five hours helping a friend at his freelance gig with a titanum powerbook while it attempts to copy a 17 Meg file from one folder on the hard drive to another folder. 5 hours. The amazing thing is at home, on my Pentium Pro 200 running NT 4, which by all standards should be a lot slower than this MAC, the same operation would take about 2 minutes. Now, I got the job to fix this as I'm the "Computer Guy" and can generally help friends and family with there computer problems. I have never seen such a tragedy as the titanum powerbook!
In addition, during this file transfer, Netscape will not work. And everything else has ground to a halt. Even BBEdit Lite is straining to keep up as I type this.
I won't bore you with the laundry list of other problems that I've encountered while working on various Macs, but suffice it to say there have been many, not the least of which is I've never seen a Mac that has run faster than its Wintel counterpart, despite the Macs' faster chip architecture. My 486/66 with 8 megs of ram runs faster than this TiBook at times. From a productivity standpoint, I don't get how people can claim that the Macintosh is a superior machine.
Mac addicts, flame me if you'd like, but I'd rather hear some intelligent reasons why anyone would choose to use a Mac over other faster, cheaper, more stable systems.
I don't, I really don't, see how Apple can claim to be tops in design. Even my A600 was a dream to work on compared to this and it was pretty compact too!. Anyway Ive talked my friend into getting rid of his mac addiction, he will definately be buying a Dell next!
I'll be jumping to buy one. :P
(proud Mac owner already)
GJC
Gregory Casamento
## Chief Maintainer for GNUstep
and $1 profit. I'll take it anyday.
This may be juuuuuust a bit off-topic, but...
/.'ers are capable of bringing to the party.
With the inclusion of ECC in the new XServes, and Apple's slow-but-steady propogation of high-end features towards the lower end, how likely is it that we'll see ECC in some future rev (maybe even this alleged-real-soon-now bump) of the desktop G5s?
It's been many years since my computer architecture coursework, so I am not sure that there's even a real cost-benefit reason to do so. I look forward to reading any brilliant insights that
Theory and practice are the same in theory, but different in practice.
It was Apples and VT's plan all along to go with the X-Servers, the G5 Towers was just to get #3 spot for this year.
Apple is bringing the supercomputer title back to the USA
Go Steve!
The fact that they are being sold by MacMall would kill the deal for me. I boycott spammers, and MacMall has been spamming for years.
sorry, but $2,700 for a *used* Mac doesn't fly. all machines depreciate about 40-50% of their purchase price as soon as they're turned on.
how many clock cycles does that instruction take, though?
If you would like to own a piece of the finished product - while it is still actively in use - let me know.
Once built and activated, all owners will have access equivalent to their contributions.
Future supporters will get access based on the percentage of operation expenses that they make contributions to offset.
As this will have ongoing operating expense, pre-payment will be required with no refunds promised or implied for lack of services rendered.
comment directly in my journal
They wanted to place highly in the top 500. The top 500 runs in "sweeps," meaning they have to be up and running on the DATE when the results are calculated. I don't know how often the sweeps are run -- ever 6 months or year or so.
So they most certainly WERE in a hurry. Now they can swap them out for more space-efficient Xserve G5's (and maybe gain some more speed with the extra space).
OS X supports TCP/IP over firewire. Firewire has significantly lower latency than ethernet, and it's a shared bus.
So Apple's biotech clusters use FW800 as a large, shared bus for distributing work packets. It's like a "free" high speed low latency third ethernet port... great for shared high-speed communications.
$200 off a 6 month old used computer? You've got to be joking, right? You get that in rebates on most brand new computers these days.
This kind of shit is exactly why I have never bought from MacMall. They have the markup from hell. I'm surprised they can stay in business. The only thing I can figure is that the average Mac user is not computer saavy (i.e. not a Slashdot reader) and has no clue he's being overcharged 50-100%. Some Mac users out there explain to me why you frequent MacMall over the Apple Store or CompUSA?
As an aside, I would love someone to do an in-depth study and research the logic behind mail-in rebates (or, if it's been done, point me to it). I know we all have our ideas, but what is the real reason an online company like Dell or MacMall would sell you a computer and then have you send in a mail-in rebate?
Source
The MMX multiply and add instruction is PMADDWD. It takes 3 cycles on a PIII or Athlon and 8 on a P4.
--
Reverse outsourcing: it's the future
1. Buy computers from Apple at discounted price to create supercomputer.
2. ???
3. Profit!!!
And decides that instead of upgrading to x-serves, they're going to rip out the insides of ALL the G5s and replace them with dual xenon systems. Hell, why replace the cases when they're already all pretty-like?
Well, from what I can see there is barely any difference between the memory controllers on the two systems. It looks like it was just a new revision of the same ASIC. Apple doesn't exactly provide many details on this, but it looks like the new memory/processor controller chip would be a drop-in replacement for the chip used on the original Powermac. Therefore it's possible (even likely) that they will use this new revision on the next revamp of the G5 line. In fact, they could well start slipping them into the current line-up without telling anyone about it.
I don't anticipate that Apple will sell any desktop G5's with ECC memory installed at the factory, but if the memory controller supports ECC you could easily replace the factory memory with third-party ECC memory.
It might come with 512M more at $200 less, but it has no phone modem. Does it at least come with iLife?
Isn't a mere $200 discount a bit anemic for old, used equipment? Granted, less than a year old, but I sure couldn't sell last year's PC for that close to list. This also begs the question "Why were the V-Tech folks assembling a super computer using desktops when they could have waited a few months?". This sounds like how the gubmint works.
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
Can be found here here ...
That's an integer multiply-add. The PowerPC 970 can do a double-precision floating point multiple-add, and that is what the Opteron and P4 lack. They can get pretty decent throughput for this sort of thing using SSE2, but only about half of the throughput, clock for clock, that a PPC 970 can get.
Given that getting on the Top500 list seemed to the main goal of this system, and that list uses only the (very limited) Linpack benchmark which is essentially nothing but multiply-adds, this makes the PPC 970 a much better chip. Of course, for real-world code, the difference might not be nearly as large and in many situations the P4 or Opteron could easily be a lot faster.
Of course, one question that could easily come out of this is WHY doesn't SSE2 include a double-precision floating point multiply-add instruction? You would have to ask Intel about that one, because it seems like a natural instruction to have in SSE2 if you ask me. Even with the updated SSE3 they didn't add this.
In my experience the price of Macs depreciates far less with time than your standard x86 boxen.
First of all, buying a new Mac is generally expensive.
Secondly, Apple's computers are generally made with solid, high-quality components and last a long time.
I just sold a single-processor G4/450Mhz Sawtooth for $400 the other day: that's a 4 year old machine that cost about $2000 new, yet can still be sold at %20 of original price.
At least up to a week ago, you could buy a 'refurb' 512M dual 2.0 direct form Apple for $2,399. They're trying top move these guys along as it looks like the 90nm chips are on their way...
Interesting...
"So the Apple project at Virginia Tech may be a wonderful educational
project, but commercial customers who have less interest in experimentation are more likely to pay specialists at Linux Networx, RLX Technologies, IBM, Sun Microsystems, Dell or Hewlett-Packard to plan the plumbing, package the software and plug in the cables. And those companies aren't going to rely on Macs."
MacMall sucks. They are the single worst computer vendor I have ever dealt with. My last purchase resulted in them overcharging me by about $250, which they have yet to correct, dating to last October. It's a shame they are the vendor for this special deal, I'd never consider using them again at any price.
Of course, for real-world code, the difference might not be nearly as large and in many situations the P4 or Opteron could easily be a lot faster.
"real-world code" *is* multiply-adds, when we're talking about scientific computing (and why else would you need a 1,100-node cluster?)
Do you honestly think that EVERY scientific computing application is nothing but a bunch of multiply-adds? Sure, that's pretty much all you're going to do if you're just solving large matricies (admittedly a common task in HPC stuff), but this is definitely not the ONLY type of code out there.
It is, however, the only type of code that the Linpack benchmark uses.
Owning one of these would be kind of cool if that supercomputer has actually done important real work, but did they ever reach that stage, or are they still in testing and tuning mode?
Admit it, even those people who forget to mail in the rebates feel better about the purchase knowing that they're getting a price break. Its pretty standard stuff in marketing/advertising. Most companies where mail in rebates are common can tell you the industry redemption rates with a high degree of confidence x.xx% Its all about making your customer feel good about their purchase
[Fuck Beta]
o0t!
As stupid as it may sound, does VT still have the right to claim their Supercomputer is in 3rd place? Before you start flaming me think about it. They have changed all teh hardware for "equivalent" hardware. Nothing tells us the XServes run any faster or Slower than the desktops. If the performance is anyhow different a new Inspector would need to validate the tests again. We all assume it should run the same and all, but technically the record is no longer valid as it is not the same computers! Anybody have some idea on the validity of their record now they have changed the machines? Heck if they even change the network design, performance might drop!
Artificial intelligence is no match for natural stupidity
Just called, no need to call.. they're all gone.. shucks.
-Jim
Right.... All along, this has been a mutually beneficial deal for both Apple and VA Tech. I guarantee Apple is giving VA Tech a special deal on this whole upgrade (and gave them a deal on the initial purchase too), because it's excellent publicity for them - and a chance to get real development on clustered computing going on the new G5 systems.
People saying VA Tech "should have just waited for the rack-mount version" don't get it. Apple made it worth their while not to wait, from the beginning....
How do you get the smell of cow manure off of it though??
Not every. But most. Solving ODE's usually boils down to iterating a (possibly implicit) linear system. Solving PDE's with finite differences does too. Or with finite elements. Or spectral methods. Lots of statistical computations do too.
Certainly there *are* scientific applications that don't involve multiply-adds, it's just that the vast bulk of scientific computations that are suitable for parallelization really boil down to solving linear systems, some kind of linear iteration, least-squares problems, or some combination. All of which are solved using lots of multiply-adds. So, while linpack isn't the end-all and be-all of hpc benchmarks, i'd say that it's a pretty good guideline; i'd also say that the speed of multiply-adds matters a whole hell of a lot for scientific computing.
Looks like another consumer has fallen prey to the "[Feature X] Ready" scheme.
;^)
Check the stats again. The Va Tech box is:
"AirPort Extreme Ready
BlueTooth Ready"
That means it's *ready* for you to shell out to actually have these features, just like any other PowerMac G5; it doesn't actually come with them. There's nothing inherent about these G5s that would stop you from getting those features, but, then, that's not really news, is it? Heck, they're all, "John Carmack exclusive pre-alpha Doom 3 build ready", but don't plan on actually playing.
So keep your credit card in your wallet, thank you for playing, and enjoy your take-home version of Buying Celebrity Macs.
That said, if there is another spot where this "ready-ness" turns into "comes pre-installed at no charge" (like it's some MacMall deal I might have missed), give us the link!
what is the real reason an online company like Dell or MacMall would sell you a computer and then have you send in a mail-in rebate?
Psychology, the same reason stuff that costs $[x].00 is priced at $[x-1].95 or $[x-1].99.
Companies love rebates because then they can advertise the lower (post-rebate) price to draw you in, you'll pay the higher (pre-rebate) price to actually buy the item, and then you'll either forget to send in the stuff to get the rebate, or you'll be too lazy to do it, or they'll reject your claim if you don't follow the instructions exactly and send them everything they require to cut you a check-- then they get to keep that extra money. Even if you do go through the hassle of redeeming your rebates, it takes quite a while for them to get you your money-- and the whole time that money is earning interest for the seller.
I'd guess that 2/3 of people who buy stuff that qualifies for a mail-in rebate NEVER redeem the rebate, thus making it quite profitable for companies to offer them. You didn't think they just wanted to save you money, did you? Because if they just wanted to do that, they'd lower the price by $5 at the friggin' register instead of making your jump through hoops to get a $5 check two months after you've made the purchase.
~Philly
That's an excellent question.
Not having ECC RAM is, to me, really annoying. This applies to both my laptop (a TiBook) as well as my desktop (an Athlon-based PC - the current chipsets just don't support ECC).
My previous desktop machine had ECC RAM, and it was just a regular mobo at the time. But now, I'd have to go with serious server hardware in order to get ECC...
Nothing interesting about that article at all, it's a bunch of anti-Apple propagandist tripe that CNet posted despite lacking the balls to attach a byline to it. It's FUD, pure and simple.
Fact of the matter is, Dell apparently couldn't do what Virginia Tech wanted for as cheap as Apple could-- because they did have the opportunity. And while you need an army of highly-paid, professional specialists to assemble that Dell supercomputer, Virginia Tech's Mac supercomputer was assembled by student volunteers who were "paid" with free pizza.
WHY doesn't SSE2 include a double-precision floating point multiply-add instruction?
Most instructions take two operands, but a multiply-add takes three, so you need an extra port on the register file and enough space in the instruction encoding to fit four register numbers. I'm not familiar with the specifics of SSE2, though.
It will run the latest e-mail worm, virus or Trojan Horse faster than any Mac. You should be proud.
I always thought it was get a more people to buy. By offering a rebate, the penny pinchers will buy from you and send in for the rebate. Some people, for whatever reason, are willing to pay more, and won't send in the rebate (lazy, stupid, too much money, whatever the reason). That way you make more money off of people willing to pay more, while still making some money off the people who aren't.
In the G5 tech note, however, they explicity state that the current desktop G5 does *not* support ECC memory. They're probably trying to use this to leverage Xserve sales - fair enough.