Ask Hackaday: How Much Compute Is Enough?

April 2, 2026 by Tyler August 71 Comments

Over the history of this business, a lot of people have foreseen limits that look rather silly in hindsight– in 1943, IBM President Thomas Watson declared that “I think there is a world market for maybe five computers.” That was more than a little wrong. Depending on the definition of computers– particularly if you include microcontrollers, there’s probably trillions of the things.

We might as well include microcontrollers, considering how often we see projects replicating retrocomputers on them. The RP2350 can do a Mac 128k, and the ESP32-P4 gets you into the Quadra era. Which, honestly, covers the majority of daily tasks most people use computers for.

The RP2350 and ESP32-P4 both have more than 640kB of RAM, so that famous Bill Gates quote obviously didn’t age any better than Thomas Watson’s prediction. As Yogi Berra once said: predictions are hard, especially about the future. Continue reading “Ask Hackaday: How Much Compute Is Enough?” →

Modern Smartphone Vs. 80s Supercomputer

March 26, 2026 by Bryan Cockfield 48 Comments

One of the most common ways of comparing the processing power of some microcontroller or older smartphone in a fantastical way was to say that they had more processing power than the Apollo Guidance Computer. While this sounds impressive on the surface, the AGC was the first integrated circuit computer ever built and is predictably under-powered by almost all modern standards. A more apt comparison would be to compare a smartphone to a supercomputer from some bygone era, and someone has recently done just that.

The linked article looks at a modern iPhone 17 compared to the Cray 2 supercomputer. When the Cray 2 was first built in the mid 80s, it was the fastest computer in the world at 1.9 GFLOPS using four vector processors. A modern iPhone is estimated to have slightly more than that, so in some ways the iPhone comes out on top.

However, the Cray 2 was built with vector processors, a specialized type of processor meant to perform rapid calculations on specific types of data sets. So the Cray 2 may have been faster at these types of tasks than the more general-purpose A19 processor, and the A19 may have the edge in other tasks.

The other major difference the article doesn’t discuss is what software runs on these computers. The Cray 2 supercomputer ran a modified version of UNIX System V, which at the time was owned by AT&T (and which ran on plenty of other computers as well). Although proprietary in some sense, it was much more open than Apple’s iOS operating system, allowing users to run whatever software they wanted to run on the supercomputers that they bought and paid for, and to modify many parts of the operating system itself. In that sense, the Cray will always maintain the edge over Apple and their walled garden.

NextSilicon’s Maverick-2: The Future Of High-Performance Computing?

February 20, 2026 by Maya Posch 6 Comments

A few months back, Sandia National Laboratories announced they had acquired a new supercomputer. It wasn’t the biggest, but it still offered in their eyes something unique. This particular supercomputer contains NextSilicon’s much-hyped Maverick-2 ‘dataflow accelerator’ chips. Targeting the high-performance computing (HPC) market, these chips are claimed to hold a 10x advantage over the best GPU designs.

NextSilicon Maverick-2 OAM-2 module. (Credit: NextSilicon)

The strategy here appears to be somewhat of a mixture between VLIW, FPGAs and Sony’s Cell architecture, with a dedicated compiler that determines the best mapping of a particular calculation across the compute elements inside the chip. Naturally, the exact details about the internals are a closely held secret by NextSilicon and its partners (like Sandia), so we basically have only the public claims and PR material to go by.

Last year The Register covered this architecture along with a more in-depth look. What we can surmise from this is that it should perform pretty well for just about all applications, except for single-threaded performance. Of course, as a dedicated processor it cannot do CPU things, which is where NextSilicon’s less spectacular RISC-V-based CPU comes into the picture.

What’s apparent from glancing at the product renders on the NextSilicon site is that these Maverick-2 chips have absolutely massive dies, so they’re absolutely not cheap to manufacture. Whether they’ll make more of a splash than Intel’s Itanium or NVIDIA’s brute force remains to be seen.

Your Supercomputer Arrives In The Cloud

December 10, 2025 by Al Williams 11 Comments

For as long as there have been supercomputers, people like us have seen the announcements and said, “Boy! I’d love to get some time on that computer.” But now that most of us have computers and phones that greatly outpace a Cray 2, what are we doing with them? Of course, a supercomputer today is still bigger than your PC by a long shot, and if you actually have a use case for one, [Stephen Wolfram] shows you how you can easily scale up your processing by borrowing resources from the Wolfram Compute Services. It isn’t free, but you pay with Wolfram service credits, which are not terribly expensive, especially compared to buying a supercomputer.

[Stephen] says he has about 200 cores of local processing at his house, and he still sometimes has programs that run overnight. If your program already uses a Wolfram language and uses parallelism — something easy to do with that toolbox — you can simply submit a remote batch job.

Continue reading “Your Supercomputer Arrives In The Cloud” →

So What Is A Supercomputer Anyway?

March 19, 2025 by Maya Posch 33 Comments

Over the decades there have been many denominations coined to classify computer systems, usually when they got used in different fields or technological improvements caused significant shifts. While the very first electronic computers were very limited and often not programmable, they would soon morph into something that we’d recognize today as a computer, starting with World War 2’s Colossus and ENIAC, which saw use with cryptanalysis and military weapons programs, respectively.

The first commercial digital electronic computer wouldn’t appear until 1951, however, in the form of the Ferranti Mark 1. These 4.5 ton systems mostly found their way to universities and kin, where they’d find welcome use in engineering, architecture and scientific calculations. This became the focus of new computer systems, effectively the equivalent of a scientific calculator. Until the invention of the transistor, the idea of a computer being anything but a hulking, room-sized monstrosity was preposterous.

A few decades later, more computer power could be crammed into less space than ever before including ever higher density storage. Computers were even found in toys, and amidst a whirlwind of mini-, micro-, super-, home-, minisuper- and mainframe computer systems, one could be excused for asking the question: what even is a supercomputer?

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Remembering Seymour Cray

July 16, 2024 by Al Williams 28 Comments

If you think of supercomputers, it is hard not to think of Seymour Cray. He built giant computers at Control Data Corporation and went on to build the famous Cray supercomputers. While those computers aren’t especially amazing today, for their time, they were modern marvels. [Asianometry] has a great history of Cray, starting with his work at ERA, which would, of course, eventually produce the computer known as the Univac 1103.

ERA was bought up by Remington Rand, which eventually became Sperry Rand. Due to conflict, some of the ERA staff left to form Control Data Corporation, and Cray went with them. The new company decided to focus on computers to do simulations for things like nuclear test simulations.

Continue reading “Remembering Seymour Cray” →

Pssst… Wanna Buy An Old Supercomputer?

May 1, 2024 by Jenny List 86 Comments

If you spend your time plotting evil world domination while stroking your fluffy white cat in your super-villain lair, it’s clear that only the most high-performance in computing is going to help you achieve your dastardly aims. But computers of that scale are expensive, and not even your tame mad scientist can whistle one out of thin air. Never mind though, because if your life lacks a supercomputer, there’s one for sale right now in Wyoming.

The Cheyenne Supercomputer was ranked in the top 20 of global computing power back in 2016, when it was installed to work on atmospheric simulation and earth sciences. There’s a page containing exhaustive specs, but overall we’re talking about a Silicon Graphics ICE XA system with 8,064 processors at 18 cores each for a total of 14,5152 cores, and a not inconsequential 313,344 GB of memory. In terms of software it ran the SuSE Linux Enterprise Server OS, but don’t let that stop you from installing your distro of choice.

It’s now being sold on a government auction site in a decommissioned but able to be reactivated state, and given that it takes up a LOT of space we’re guessing that arranging the trucks to move it will cost more than the computer itself. If you’re interested it’s standing at a shade over $40,000 at the time of writing with its reserve not met, and you have until the 3rd of May to snag it.

It’s clear that the world of supercomputing is a fast-moving one and this computer has been superseded. So whoever buys it won’t be joining the big boys any time soon — even though it remains one heck of a machine by mere mortal standards. We’re curious then who would buy an old supercomputer, if anyone. Would its power consumption for that much computing make it better off as scrap metal, or is there still a place for it somewhere? Ideas? Air them in the comments.