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Virginia Tech Building Power Mac G5 Supercomputer
TechNewsWorld ^ | 9/3/2003 | Jay Lyman

Posted on 09/06/2003 1:10:51 PM PDT by Boss_Jim_Gettys

Using several new technologies and more than 1,000 dual-processor Power Mac G5 computers, Virginia Tech University is building a supercomputer cluster that is likely to rank among the fastest in the world.

In addition to the G5 machines, the university said it is using a beta version of the latest release of OS X, new networking hardware from Mellanox and Cisco, and cutting-edge configuration and cooling technologies to build the powerful cluster for a fraction of the price of a traditional supercomputer.

"The total price tag is probably a factor of 10 lower than a machine in this class in the past," Virginia Tech College of Engineering dean Hassan Aref told TechNewsWorld. "Virginia Tech's idea was to develop a supercomputer of national prominence based upon a homegrown cluster."

Aref, who indicated the project is under pressure to submit computing speed numbers by October to be considered among the world's fastest supercomputers, said the cluster represents the use of five new technologies.

In addition to the latest Mac operating system and dual 2-GHz Power Mac G5 machines, which Apple touts as the fastest desktop computers in the world, the cluster will use several technologies from other vendors: "brand new" networking hardware from Mellanox and Cisco; a new high-density rackmounted cooling system from Liebert; and new software that will enable the cluster to "run big jobs," according to Aref. The university said the cluster will use 1,100 dual-processor G5s. They will be clustered using 64-bit Infiniband semiconductor technology from Mellanox, which will provide the primary communications fabric, drivers, cards and switches. Cisco's Gigabit Ethernet switches also will be used as the secondary communications fabric to interconnect the cluster.

Aref said the larger number of machines will mean greater access to and more projects for the supercomputing cluster, which will be used for research on nanoscale electronics, quantum chemistry, computational chemistry, aerodynamics and molecular modeling of proteins, among other work.

Aref also said the distributed terascale cluster will mark a new level of stability and discovery.

"We think running a cluster of this size in a sustained, stable mode for a long time is quite unique," he said. "It will allow calculations that have been difficult on other clusters and allow us to peer into a new level of research."

Virginia Tech said the supercomputer's construction came about through weekly conference calls between the various players and included international expertise from Japan and Israel as well as input from university staff and students.

Aref said that despite concerns about U.S. slippage in the supercomputer environment, the Virginia Tech project highlights American expertise and technology. "What we're really working off of is this grassroots expertise," he said.

The Virginia Tech project comes less than a month after Los Alamos National Laboratory announced deals for Linux supercomputing clusters. The latest announcement highlights the departure from monolithic mainframe supercomputing to less expensive, grid-like configurations, Yankee Group senior analyst Dana Gardner told TechNewsWorld.

"This is further evidence of going away from symmetrical multiprocessing mainframes and moving more to a distributed grid of relatively low-cost nodes," he said.

Gardner, who said OS X's BSD kernel roots and Linux and Unix heritage make it ideal for the Virginia Tech cluster, indicated the key to the newer grid approach is the technology layer above systems.

"Distributed networks of resources have a great potential to solve problems with the efficiency of lower-cost individual units," he said. "How resources are managed becomes the key."


TOPICS: Culture/Society; Extended News; Technical; US: Virginia
KEYWORDS: apple; cluster; g5; mac; macuser; macuserlist; overpricedcrap; supercomputer; tech; vatech; virginia
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The entire system cost $5.2 million, utilizing 1100 dual processor G5 Power Macs with 4 GB RAM and a 160 GB hard drive each.

On September 4 an informational session was held at Virginia Tech giving details on the system. A synopsis can be found at MacRumors.

It is interesting that the Power Mac G5 system was chosen purely on a cost vs. performance basis over competing systems from Dell, Sun, IBM and HP.

It will also be interesting to see how this beast compares to the PNNL supercomputer cluster based on Itanium2 processors (posted here) once it gets cranked up in October/November.

No Intel, no AMD, no Penguin!

1 posted on 09/06/2003 1:10:52 PM PDT by Boss_Jim_Gettys
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To: justlurking
ping
2 posted on 09/06/2003 1:11:55 PM PDT by Boss_Jim_Gettys (Reading tag lines will make you go blind.)
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To: Boss_Jim_Gettys
Just so it runs Appleworks.
3 posted on 09/06/2003 1:20:13 PM PDT by Ben Hecks
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To: Boss_Jim_Gettys
"It will allow calculations that have been difficult on other clusters and allow us to peer into a new level of research."
Quite right. Peer into, but never enter in any real or productive way. You'll always be a tourist, because you're using macintosh.
4 posted on 09/06/2003 1:44:44 PM PDT by Asclepius (karma vigilante)
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To: *Macuser_list
http://www.freerepublic.com/perl/bump-list
5 posted on 09/06/2003 1:56:36 PM PDT by Libertarianize the GOP (Ideas have consequences)
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To: Asclepius
You'll always be a tourist, because you're using macintosh."

Well, with the new G5 I'm on the Concorde and you're flying coach in a 707!

Oh, and in the arena of cluster supercomputers, it looks like my airfare is about half what you paid!

6 posted on 09/06/2003 2:52:01 PM PDT by Boss_Jim_Gettys (Reading tag lines will make you go blind.)
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To: Boss_Jim_Gettys
Will it be able to emulate a PC?
7 posted on 09/06/2003 3:19:17 PM PDT by Roscoe
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To: roostercogburn; mhking; Ernest_at_the_Beach; tortoise; D-fendr; Sir_Ed; mgstarr; TheBattman; ...
Pinging the Mac faithful...

Come on in and gloat.

G5 Power Mac, the fastest and most cost-effective personal computer.

8 posted on 09/06/2003 3:25:17 PM PDT by Boss_Jim_Gettys (Reading tag lines will make you go blind.)
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To: Ben Hecks
Hypercard too, please. :)
9 posted on 09/06/2003 3:26:28 PM PDT by July 4th
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To: July 4th
Oh man...I said that tongue-in-cheek. I had no idea Hypercard was still around. It was so bad the last time I used it, I figured it had been killed at least 5 years ago.
10 posted on 09/06/2003 3:28:15 PM PDT by July 4th
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To: Roscoe
"Will it be able to emulate a PC?"

Not for a while. Micro$oft does not have a G5-compatible version of Virtual PC.

"Currently, Virtual PC 6.1 does not run on the Power Mac G5," Microsoft's Sandra Peignaux told Macworld UK. Users attempting to install the Windows emulation software will get an error message, saying: "This application is not supported by the CPU." Peignaux said "Virtual PC relies on a feature of the G3/G4 processors called 'pseudo little-endian mode' for increased performance when emulating a Pentium processor." Because the G5 processor does not support this feature, "much of the program will have to be rewritten to work on G5's." Support for the new Power Macs will be introduced in a future release, she confirmed. No timeframe was given for the update."

I guess they don't want a Mac to emulate a PC faster than a PC!

11 posted on 09/06/2003 3:36:03 PM PDT by Boss_Jim_Gettys (Reading tag lines will make you go blind.)
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To: Boss_Jim_Gettys
Not for a while.

I'll wait.

12 posted on 09/06/2003 3:38:56 PM PDT by Roscoe
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To: Boss_Jim_Gettys
Interesting.

Thanks for the ping, but I'm not one of the 'Mac Faithful': I'm not a platform zealot whatsoever.

I recommend that you abandon platform zealotry too. It's an annoying and silly throwback to the 1990 mindset.

13 posted on 09/06/2003 3:47:13 PM PDT by The KG9 Kid
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To: Roscoe
Will it be able to emulate a PC?

Sorry, it will take quite a bit of work to get this to run all the latest viruses.

14 posted on 09/06/2003 3:51:01 PM PDT by Physicist
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To: Boss_Jim_Gettys
In addition to the latest Mac operating system and dual 2-GHz Power Mac G5 machines, which Apple touts as the fastest desktop computers in the world

Is this true?

15 posted on 09/06/2003 3:53:11 PM PDT by xm177e2 (Stalinists, Maoists, Ba'athists, Pacifists: Why are they always on the same side?)
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To: AppyPappy
A little bird told me about this. Actually, a big bird. Sort of a turkey.

Just so long as you guys don't call it "Orchard".

Did JMU score today, by any chance?

16 posted on 09/06/2003 3:53:27 PM PDT by Physicist
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To: Physicist
LOL!!!!

L

17 posted on 09/06/2003 3:53:40 PM PDT by Lurker ("First get the facts right. Later on you can distort them any way you please." Mark Twain)
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To: Physicist
Ouch.
18 posted on 09/06/2003 3:53:59 PM PDT by Roscoe
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To: Boss_Jim_Gettys
But it won't break down as often as PCs, so it can't be a real supercomputer like the PNNL supercomputer cluster based on Itanium2 processors.
19 posted on 09/06/2003 3:54:44 PM PDT by aruanan
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To: Boss_Jim_Gettys
Unless Virginia Tech can break the $100 / GFLOP barrier, this is too little too late.

The University of Kentucky appears to have a definite lead with Purdue's expertise. See http://www.freerepublic.com/focus/f-news/969204/posts and look up the work of Henry G. Deitz http://aggregate.org/hankd/ .

20 posted on 09/06/2003 4:21:09 PM PDT by Silent One
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