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From: utterback@husc4.UUCP
Newsgroups: comp.arch
Subject: Re: ETA?
Message-ID: <2275@husc6.UUCP>
Date: Thu, 11-Jun-87 10:07:16 EDT
Article-I.D.: husc6.2275
Posted: Thu Jun 11 10:07:16 1987
Date-Received: Sat, 13-Jun-87 08:47:21 EDT
References: <3643@spool.WISC.EDU> <3300007@uiucdcsm>
Sender: news@husc6.UUCP
Reply-To: utterback@husc4.UUCP (Brian Utterback)
Organization: Cray Research
Lines: 52

In article <3300007@uiucdcsm> grunwald@uiucdcsm.cs.uiuc.edu writes:
>
>I think that the ETA systems are cyber-205 work-alikes. THe ETA-10 is a
>box containing 10 of the CPUS. I haven't heard much about the memory
>heirarchy (if any) or the performance.

The ETA-10 Can have from 1 to 8 CPUs.  Since there has been so much interest
recently, I will give some facts(?) that I know about the ETA-10.  This is 
from a product presentation that they gave, and I am working for the 
competition, so take everything with a grain of salt. 8-)

1st system to FSU
2nd system to Princten, JVNC.

240 Chips on each PC board (16"x22")
Each chip os 1 cm2
Each CPU holds 4MW of local memory
Memory is air-cooled.
CMOS Gate Arry [ALSI - 20k]
Cyber-205 instruction compatibility.
Factor of 10 improvment over 205 on short vectors.
G Series is Liquid Nitorgen cooled, 45 Minutes to cool down, 90 Minutes to 
  warm back up.
7 ns clock with Liq. N.  14ns clock in air.

OPTIONS:
2,4,6,8 CPUs with 4MW memory each
64, 128, 192, 256 MW Shared Memory
2 to 18 I/O Units
Optional Redunancy on 2 and 4 processors.
Redundancy standard on 6 and 8 processors.

Memory:
  Local:
    64K MOS SRAM
    SECDED for each 32 bits
    75 billion bits/sec bandwidth
    virtually addressed.
  Shared:
    256K MOS DRAM
    32-256 MW with SECDED
    8 hi-speed cpu ports 
    18 lo-speed ports

O.K., there it is.  Like I said, this was from a marketing product presentation,
so I can't vouch for the accuracy of the claims.  Also, don't ask me for more 
details, I don't have them, and I don't even understand all that I wrote above.

Brian Utterback
>Everything in this message is the opinion of myself and not my employer. <
>I am representing only myself, and if you can, forget that you saw my    <
>name on it, O.K.?