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Cray-1 vs Raspberry Pi

roylongbottom.org.uk

101–110 of 193 posts

Re: Cray-1 vs Raspberry Pi

#101
post #56

Earlier quoted context omitted.

such a dystopian future... I hope we are not still using plastic then :)

How is this dystopian? Plastic is a really great material -- and way more eco-friendly than metal for building computers. It's only mass-produced single-use plastics like water bottles that are bad for the environment.

How is it more eco-friendly? AFAIK Most plastics used in such applications are not practically recyclable, whereas metals are.

Re: Cray-1 vs Raspberry Pi

#102

When I see comparisons like this, the first thought I have is not the benchmarks, but rather what the most “heroic” real-world calculation of the day would have been on something like the Cray-1, and how to replicate those calculations today on something like a RPi. Weather/climate models? Rad-hydro? The fidelity would almost certainly be super low compared to modern FEA software, but it would be a fun exercise to tr…

One of the early customers was the European Centre for Medium-Range Weather Forecasts, so, wild guess, they probably used it for medium-range weather forecasts.

> they probably used it for medium-range weather forecasts

in europe

Re: Cray-1 vs Raspberry Pi

#103

Earlier quoted context omitted.

One of the early customers was the European Centre for Medium-Range Weather Forecasts, so, wild guess, they probably used it for medium-range weather forecasts.

> they probably used it for medium-range weather forecasts in europe

FWiW Australia used a CDC Cyber 205 for occassional weather modelling and other mathematical work in the early 1980s.

( There was a seperate dedicated weather computer, this one was used for 'other' jobs like speculative weather modelling, monster group algebraic fun, et al.)

https://en.wikipedia.org/wiki/CDC_Cyber

The UK was the first customer:

    In 1980, the successor to the Cyber 203, the Cyber 205 was announced. The UK Meteorological Office at Bracknell, England was the first customer and they received their Cyber 205 in 1981.

Re: Cray-1 vs Raspberry Pi

#105
post #8

The RPi, unlike the Cray-1, does not offer ample sitting space.

Somebody made a Cray-themed Pi Zero cluster which perhaps fits the bill (if you’re a mouse, that is): https://www.clustered-pi.com/blog/clustered-pi-zero.html

There's also a Z80 build.

https://rc2014.co.uk/1865/crayzee-eighty/

Re: Cray-1 vs Raspberry Pi

#106
post #52

It's wild to imagine that 40 or so years from now, someone will have a drawer full of cheap plastic boxes, each with more power than the fastest computing cluster of 2023... promising to themselves that one day they're finally going to build that hobby project with one of them.

You really think so? Aren’t we at the end of Moore’s law, so I’m really doubtful that we’ll see massive leaps like that.

People have been saying that for at least twenty years

Re: Cray-1 vs Raspberry Pi

#107
post #45

Earlier quoted context omitted.

My favorite was the 33rd in line at the time which was made up of 1700 sony PS3s https://www.google.com/amp/s/phys.org/news/2010-12-air-plays...

When the DoE claimed the PS3 could be a dual purpose munition, they weren’t kidding.

Saddam Hussein did try to buy a load of PlayStations at some point.

Re: Cray-1 vs Raspberry Pi

#108

Earlier quoted context omitted.

How is this dystopian? Plastic is a really great material -- and way more eco-friendly than metal for building computers. It's only mass-produced single-use plastics like water bottles that are bad for the environment.

I wish we could come up with a plastic that would biodegrade after a fixed amount of time say 200 years.

You want the stored carbon in plastics to escape??

The best outcome for plastics, would be to bury them very deep (like nuclear waste), where they could eventually become some new oil like substance. No carbon escape.

Re: Cray-1 vs Raspberry Pi

#109

Earlier quoted context omitted.

You really think so? Aren’t we at the end of Moore’s law, so I’m really doubtful that we’ll see massive leaps like that.

People have been saying that for at least twenty years

I remember people saying this in the 80s!

Re: Cray-1 vs Raspberry Pi

#110

Earlier quoted context omitted.

What make and model would you recommend for a mini PC? I was thinking of getting one lately.

I got a used Lenovo ThinkCentre M910q i5-6500T 4x2.5GHz 8GB RAM 240GB SSD for 100 €. Plenty fast for a couple of VMs with web servers. It's also a lot better for 24/7 than RPi, as I was always struggling with SD card wear

See also Dell OptiPlex 9020 Mini (i5-4590T 4x2GHz 16GB) - that class of “One Litre PC” make an excellent VPS / multi-VM setup.
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