Thread: Dream Computer?
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Old 05-22-2004, 05:10 PM
Charmy
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Join Date: May 2004
Location: The DeathStar of David
Posts: 337
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Well.. while we are dreaming... lets dream


http://www.cray.com/products/systems/sv1/

Multi-Streaming Processor (MSP)
The Cray SV1ex combines four 2 GFLOPS processors to create one eight-vector pipe processor that delivers 8 GFLOPS peak performance. The system dynamically reconfigures the combination of MSP and standard processors based on the system workload.

With
ATM and gigabit Ethernet

Scalability
Cost-effective solution to scale capacity beyond the resources available within a single node. Scales to 32 nodes with over one teraflop of peak CPU capacity and more than one terabyte of memory.

For those who don't know what a FLOPS is. FLOPS are floating-point operations per second.
Floating-point is, according to IBM, "a method of encoding real numbers within the limits of finite precision available on computers." Using floating-point encoding, extremely long numbers can be handled relatively easily.

Basicly a gigaflop is approx a million GHZ of processing power, (the XD1 computers do not run million GHZ processers, they operate off of AMD 2.2GHZ processers, but due to the way the information is processed (the cray technology) they can process up to 53 GigaFlops off 12 processers (one computer). So really instead of the 12 2.2 GHZ processers, its more like running 12, one million GHZ processers.)

The Cray SV1 however is different, each SV1 runs 4 parallel 2 gigaflop processers, that have the ability to run in parallel with up to 31 other SV1's, thats 32 total machines, running 128, 2 gigaflop processers in a row, topping off at about one terabyte of information per second.

a terabyte if you didn't know, is 1000 gigabytes, which is 1000000MB which is 100000000kb. (i think i did that right).

and further more.

http://www.cray.com/temp/products/systems/xd1/

(Formatting was screwed up, but the first number is a single XD1 computer, and the second is a full rack of 12 computers)
Compute Processors
12 <---One Cray XD1
144 <---12 Cray XD1's

Performance
53 GFLOPS* <---One
633 GFLOPS* <---12 (you get it)

Aggregate Switching Capacity
96 GB/s
1152 GB/s

Interprocessor Latency
1.6
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