Low-cost transputer setup available NOW (or real soon)

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3 total messages Started by Greg Corson Mon, 26 Oct 1987 20:16

#1918

Author: Greg Corson
Date: Mon, 26 Oct 1987 20:16

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Ok, if I want to start experimenting with a transputer based computer
system, what can I go out and buy NOW?  I would like a system with some
graphics capability and a halfway decent C and/or Occam compiler.  It
should also have the ability to expand to several (4-5) transputer
cpu's without a lot of trouble.

What kind of system could I get now and how much would it cost me?
The only computer I have right now to use with it would be a Mac+ although
a Mac II is possible.  All in all I would rather have a completely
stand-alone transputer system though.

Cost is important!

Greg Corson
19141 Summers Drive
South Bend, IN 46637
(219) 277-5306 (weekdays till 6 eastern)
{pur-ee,rutgers,uunet}!iuvax!ndmath!milo

Re: Low-cost transputer setup available NOW (or real soon)

#1934

Author: Brian Moore
Date: Tue, 03 Nov 1987 23:35

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Has anyone out there done a table of comparison between the various
micro chips available and their cost/chip, cost/mip, cost/mflop?

How does the T800 compare with the M68030 or MIPS chips.

This should lead to lots of debate on what is a mip wrt Occam ( risc??)
and more traditional languages.

Re: Low-cost transputer setup available NOW (or real soon)

#1935

Author: Craig Hansen
Date: Thu, 05 Nov 1987 23:09

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2141 bytes

In article <533@myrias.UUCP>, bhm@myrias.UUCP (Brian Moore) writes:
> Has anyone out there done a table of comparison between the various
> micro chips available and their cost/chip, cost/mip, cost/mflop?

> How does the T800 compare with the M68030 or MIPS chips.

Well, Inmos mentioned Whetstones in the Electronics article, announcing it
as having the fastest floating-point unit. I don't have the figures in
front of me for the T800, but the MIPS R2000/R2010 gets 12 MegaWhetstones
single precision, and 9.3 MegaWhetstones double precision when run at 16.67
MHz, which was about double the figure for T800.

We'd rate a 16.67 MHz system with full size (64kbyte each) caches and
reasonably fast, local, memory at 12 MIPS (or 12 times faster than a
VAX-11/780). It appears the the T800 performance Whetstone figure has code
and data running out of the internal memory, and that the same figure with
off-chip memory and/or caches will be slower. - anyone have details?

Cost? MIPS quotes 5000 quantity prices of $195 for the R2000 CPU and
$295 for R2010 FPC. The price of the CPU is less than the 5000 quantity
price for a '386.

> This should lead to lots of debate on what is a mip wrt Occam ( risc??)
> and more traditional languages.

Not from me. I'd bet Occam disappears as fast as you can get C compilers
for the Transputer. Incidentally, does anyone know whether the the
T800 Whetstone figure was from an honest-to-golly Fortran compiler,
or did they "hand-code" the benchmark?

-- 
Craig Hansen
Manager, Architecture Development
MIPS Computer Systems, Inc.
...decwrl!mips!hansen

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