In article <1281@urbana.mcd.mot.com>, mbraun@tutti.urbana.mcd.mot.com
(Matthew Braun) writes:
|> In article <1010@tantalum.UUCP>, sorc@edsr.eds.com (Paul Caskey) writes:
|> |>
|> |>ObMyth: A room full of Commodore 64s running in parallel will rival
a Cray.
|> 
|> Oh, sure it will!  The trick is getting a big enough room... ;-)
|> 
|> 					m@                        

O.K. Here are the conversions from Cray units to Commodore 64 units:
All numbers are approximate.

Mass:   1 Cray (19000 pounds) = 3800 C64 (5 pounds)
Size:   1 Cray (150 Sq foot)  =  150 C64 (1 Sq foot)
Volume: 1 Cray (600 Cu feet)  = 2400 C64 (1/4 Cu foot)
Memory: 1 Cray (2 Gigabyte)   = 32768 C64 (64Kbytes) (Cray-2 memory)
I/O speed: 1 Cray (12Gbyte/sec) =131072 C64 (16Kbyte/sec) (C64 gets a break)
Users:  1 Cray (256 users)    = 256 C64 (1 reluctant user)
Cost:   1 Cray ($20Mil)       = 200000 C64 ($100)
Coolness: 1 Cray (Way cool)   = Loads-and-loads C64 (As cool as a Gremlin)
Disks:  1 Cray (48 DrivesX600Mbyte) = Infinite C64 (I don't have a disk drive)
Keys:   0 Cray (No keys)
Mouse:  0 Cray (No Mouse)
Graphics: 0 Cray (No Graphics)
Games:  1 Cray (rogue, wump etc.) = .000001 C64 (Loads'o'games)
Sound:  0 Cray (No Sound)     = 1 C64 (Three count 'em three voices)
Basic:  0 Cray (No Way)
Cartridge: 0 Cray (Got a 10Mbyte cartridge?)
Slots:  1 Cray (1728 Slots)   = 1500 C64 (1+Slots)
Wires:  1 Cray (60 miles)     = 31680 C64 (10 Feet).
Seats:  1 Cray (10 comfortably) = 30 C63 (I need three to sit on)
Colors: 1 Cray (Any color you choose) = Infinite C64 (What color is that
anyway?)
Flops:  1 Cray (2.2Gigaflop)  = 1 Billion C64 (64 Bit floatingpoint in
software?)
Kernel: 1 Cray (2.5Mbyte)     = 300 C64 (8 Kbyte)
Hello_world: 1 Cray (300000Bytes) = 12500 C64 (24 bytes)

That's it.     

-Alan Kilian
 Cray Research, Inc.