[cctalk] Re: 5,34 Petaflop System Cheyenne

Cheyenne is a nice basement system. Only needs 1.75 MW. The system which replaced Cheyenne is Derecho, a 19.8 petaflop system. https://news.ucar.edu/132904/scientists-nationwide-launch-first-projects-new-ncar-supercomputer Last fall, NOAA/NWS replaced theirs (one in Manassas, one in Phoenix)

[cctalk] Re: 5,34 Petaflop System Cheyenne

On Sat, May 4, 2024 at 12:28 PM W2HX via cctalk wrote: > Sure but at $60k per bitcoin it only takes 267 bitcoins to earn a $1M profit > on that $15M per year cost! But I have no idea if a machine like that could > mine 266 coins in a year or 22/month. I'm not really sure if Cheyenne could

[cctalk] Re: 5,34 Petaflop System Cheyenne

Sure but at $60k per bitcoin it only takes 267 bitcoins to earn a $1M profit on that $15M per year cost! But I have no idea if a machine like that could mine 266 coins in a year or 22/month. Sent from Nine From: Jon Elson via cctalk

[cctalk] Re: Help request with fundraising campaign to save historic computers

On Sat, May 4, 2024 at 9:28 AM Gianluca Bonetti via cctalk < cctalk@classiccmp.org> wrote: > ... > I am helping Museo del Computer with this fundraising effort in order to > save a large number of machines with significant historic value, including > some Sperry Univac systems. > ... I would

[cctalk] Re: 5,34 Petaflop System Cheyenne

On 5/4/24 10:21, W2HX via cctalk wrote: I wonder how well that machine would do at bitcoin mining Umm, it will consume about 4000 Dollars of electricity per day! That is not counting the cooling required, just the power input. that's about $15 million per year. Jon

[cctalk] Re: 5,34 Petaflop System Cheyenne

I wonder how well that machine would do at bitcoin mining Extremely poor? -- : Ethan O'Toole

[cctalk] Re: 5,34 Petaflop System Cheyenne

I wonder how well that machine would do at bitcoin mining Sent from Nine From: CAREY SCHUG via cctalk Sent: Saturday, May 4, 2024 12:28 AM To: General Discussion: On-Topic and Off-Topic Posts Cc: CAREY SCHUG Subject: [cctalk] Re: 5,34

[cctalk] Re: BASIC

Just for fun, I keyed in and ran the "Ahl Benchmark" on a few "boots-to-BASIC" systems that I still have setup: Exploring Project Ahl in 2024 — voidstar https://voidstar.blog/exploring-project-ahl-in-2024/ On Wed, May 1, 2024 at 5:58 PM

[cctalk] Re: CP/M

There was also Concurrent CP/M (possibly only a /86 variant). On Sat, May 4, 2024 at 2:02 AM Bill Degnan via cctalk wrote: > Herb Johnson has some good info on the history of cp/m here > https://www.retrotechnology.com/#dri > Bill > > On Fri, May 3, 2024, 8:23 PM Murray McCullough via cctalk <