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From: garyb@iotek.UUCP (Gary Burrell)
Newsgroups: comp.arch,comp.misc
Subject: Info on DSP chips
Message-ID: <337@venus.iotek.UUCP>
Date: 13 Jul 89 12:36:28 GMT
Reply-To: garyb@iotek.UUCP (Gary R. Burrell)
Organization: IOTEK Inc
Lines: 79

A while back I posted to the net looking for benchmarks on DSP chips.
A number of people replied pointing me to sources of information and a
number asked me to pass on what information I received.  I really did
not receive to much in the way of actual benchmarks but I did receive
pointers to several sources of information.

There seem to be some interest in DSP related discussion.  Is there
enough interest to create a DSP related group? 


Some of the better sources of information I found or was told about
are:

IEEE Micro December 1988

	A Special Issue on DSP processors, contains detailed articles
on the TMS320C30, DSP32c and DSP96002.  These are fairly good articles
about the various DSP processors.  The only part of the issue I really
question is the editors afterword in which they come up with some
amazing figures for Linpack ratings of the TMS320C30 (20 MFLOPS) and
DSP96000 (30 MFLOPS).  I question these ratings as most supercomputers
only get about 1/10 of there peak performance rating on the LINPACK
benchmark.  The chips may do better than that but I for one would like
to see some real numbers using real systems and real compilers.  (Can
anyone provide these) I'll be surprised if these chips get anywhere
near these figures on the LINPACK benchmark, I don't doubt that they
can obtain these performances and better on multiply/accumulate
benchmarks.

EDN September 29 1988

	A good article on benchmarking several DSP processors.
Unfortunately the code for the benchmarks is not provided.  You could
order it from EDN up till April 1, 1989 but I missed that deadline.  I
got a reprint of this article from AT&T.

IEEE ASSP Magazine  October 1988 and January 1989

	A two part article on the architectures of programmable DSP
chips.  A good article for those who are interested in the architecture
of these processors.

Other articles look at included

IEEE Spectrum June 1987 on DSP's 

IEEE Spectrum April 1989 on the i860

Computer Design May 1989 on DSP's

and the Product Information from:

	Intel on the i860
	AT&T on the DSP 16/16A and DSP 32/32C
	TI on the TI320C30

I am still waiting for TI, Motorala, Futjitsu etc to send me more
information.  (Hopefully it's in the mail)


As well Michael Slater is sending me a copy of his newsletter in which
they did an article on some DSP chips.


Thanks to those of you who sent me information and when I finish my
report I'll see if I can summarize to the net.


				Gary

			<<<<<<******>>>>>>
Gary R. Burrell, Iotek Inc,     |*| E-Mail: garyb@iotek.uucp	|*| 
1127 Barrington St., Suite 100, |*| Fax:    (902)420-0674	|*|   
Halifax, N.S., B3H 2P8, Canada  |*| Phone:  (902)420-1890	|*| 

Damm it Jim 
  I'm a Doctor not a Computer Scientist!
              
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