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RPi 1B faster than a Cray-1?

 

It's a short article on Hackster.io.



--
? ?_____
|\/ ? o \? ?o ? ? ? ? ??Rusty Haddock? <=>? AE5AE?
| ? (? -<? O o? ? ??? ? ?I've landed in McKinney.
|/\__V__/? ? ? ?Math illiteracy affects 7 out of 5 people!
 

Very interesting, thanks!
--
Charlie Carothers
 

80Mhz was a boatload back then. Affordable gear end of the 70s ran at 1-2,
maybe 4MHz tops.

Gotta wonder what it would take to emulate a Cray-1 so that it matches the
original's performance.

On Thu, 4 Jan 2024, Rusty Haddock wrote:

Date: Thu, 4 Jan 2024 01:58:05 -0600
From: Rusty Haddock <kd4wlz@...>
Reply-To: [email protected]
To: [email protected]
Subject: [dallasrpi] RPi 1B faster than a Cray-1?

It's a short article on Hackster.io.

Click here
<>
 

Didn't the Crays do a lot of matrix manipulation with parallel hardware? If so, I suppose that would sort of equate to multiple cores today as found in CPUs and GPUs.

Later,
--
Charlie Carothers
 



On Thu, Jan 4, 2024 at 12:01?PM Charlie Carothers <csquared71@...> wrote:
Didn't the Crays do a lot of matrix manipulation with parallel hardware? If so, I suppose that?
would sort of equate to multiple cores today as found in CPUs and GPUs.
_._,_._,_

They sure did but those "cores" were really more like arithmetic units
and I believe they were all programmed to do the same thing at once.
Thusly, they weren't quite like another core.? ?A Cray was SIMD --
Single Instruction Multiple Data -- one instruction with multiple
data items.

To quote Wikipedia:
? ? "The Cray-1 was the first supercomputer to successfully implement
? ? ?the vector?processor design. These systems improve the performance
? ? ?of math operations?by arranging memory and registers to quickly
? ? ?perform a single operation on?a large set of data."

Mind you the CPU that fed this vector processor was something like a
Data General Eclipse (I've also heard of VAXen) being used at the MCU
which setup the vector processing and fed the CRAY-1 with all the data.

Even with a single core at 2-3 GHz, a RPi would do some serious a$$
whooping on this 1974 design.? :D

--
? ?_____
|\/ ? o \? ?o ? ? ? ? ??Rusty Haddock? <=>? AE5AE?
| ? (? -<? O o? ? ??? ? ?I've landed in McKinney.
|/\__V__/? ? ? ?Math illiteracy affects 7 out of 5 people!

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