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gerdesj

7,958 karma · joined July 24, 2016

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gerdesj··on Ten advances in mathematics and theoretical computer science
"Any computable problem will eventually fall to computers."

By definition. Its those pesky NP jobbies that get in the way.

gerdesj··on My personal AI benchmark: “Generate an SVG of a frog with a Habsburg jaw”
Please could we have a human generated image to compare the AI generated tosh with?
gerdesj··on The most official water costs $120k a gallon
Fags in the UK are around £13-20 per 20!

https://www.tesco.com/shop/en-GB/search?query=cigarettes&inp...

gerdesj··on GitHub is the wrong shape for this new world
You have achieved enlightenment!
gerdesj··on GitHub is the wrong shape for this new world
I absolutely agree with you that the paraphernalia around code is required but tools for the job.

git for code management

something else for discussion of that management

gerdesj··on The Cold Email
Well my little company has at least three employees that came back again after leaving. Two of them are still here. We are not particularly interesting ...

What I'm advocating for here is trying out new (old) methods of waving your CV/resume at an employer.

I graduated as a civil engineering technician (BTEC HND) in the UK in 1990. I did a "sabbatical" ... cough rag (basically pissed up for a year for charity is a fair description of that).

The building industry in the UK collapsed in 1991 along with a rather nasty recession.

Obviously I ended up in IT! It took a while but I completely reskilled and to cut a very long story short in 2000 me and a couple of other chaps formed a little company that is still running.

Enough of me.

Getting hired is hard but I would suggest that you don't simply rely on Linked In.

gerdesj··on The Cold Email
I'm probably somewhat older than most here. What OP is describing is what used to be normal and should still be!

In the past it was normal to write a CV (resume) and a covering letter that was mildly tailored to each target firm, either in response to a job advert or on spec. I'm not talking quill pens here - you'd do a mail merge and buy a really large book of stamps.

Linked In is possibly the worst thing that ever happened to HR but it was inevitable and someone else would do it instead if they did not.

The whole point is ... show interest, actual interest in an employer you are interested in and whatever they are doing. Find a way in. If they only use LLM based 'bots and can't be arsed with a 'phone call then fuck 'em!

gerdesj··on GitHub is the wrong shape for this new world
"I think of GitHub as a collaboration tool."

Well yes but git itself is the tool at the base of the pyramid you call GitHub and co. It seems you actively want git to look like all the other things you are used to and they are all walled gardens.

GitHub takes git and basically turns it back into subversion and co. Instead of all that anarchic "no repo is king" long haired hippie nonsense, you want central control 8) I do too but only within my company, so we use gitea (other git control freak enablement platforms are available).

Why not go back to basics and start with git? Just git. Add a comms channel - it can be telephone, SMS, email, Slack, semaphore or smoke signals. Then add stuff on top of the basics and see what happens.

Quite a large project works like that already. You might have heard of Linux.

Or stick with a canned effort like GitHub (I use it for some things) and accept that you get what you are given if you abrogate your options to someone else.

gerdesj··on Underwater oxygen loss threatens earth's stability, researchers warn
Now look up the temperatures within the water column. I don't see any notes about pressure. Temperature is one axis ...

Your charts show several "green house gases" and with some squinting and handwaving could be used to "prove" that the seas are mopping up those gases and saving the planet.

I used to keep tropical fish and they somehow managed to survive in water temperatures way higher than the open seas. In an aquarium it is the surface water area (not volume) that generally decides how many fish can live within it. The surface area determines how much oxygen can be absorbed, Oxygenating plants help and agitating the surface increases the surface area - it does not "mix in" oxygen.

My point is: That's all bollocks.

gerdesj··on AIs don't do what you want. This is bad
You'll be glad to know that I was first shown tLoB in Divinity class at school by the school's resident priest (CoE).
gerdesj··on How to write English prose (2023)
Take a copy of "Usage and Abusage" and blend with Lord Byron after applying suitable libations; toss in the bear for body. Season to taste with the darker dictionary (the parts chained down to protect the reader). Simmer over a fire of coked Latin and Greek primers, scented with a whiff of lilac.

Serve in a curiously beige vessel.

gerdesj··on What is happening to jobs? Separating AI hype from reality
A 10x engineer only needs about five months of experience.

So, leave college/uni with your "Desmond" (1) in comparative pornography in Feb 2026, buy a PC/Apple and by now you will be writing Windows Entra 2027 on your own.

Profit!

(1) Tutu - geddit!

gerdesj··on AIs don't do what you want. This is bad
"He's not the Messiah and is a really naughty boy"

... or words to that effect. Can't be arsed to dig out a search engine and will rely on seriously addled brain.

gerdesj··on Kimi K3 exploited the latest Redis server
Scraipt kiddie, script kiddlmie.

Needs some work!

gerdesj··on Nvidia DGX Spark as a daily driver
On each Spark you can bridge the two interfaces but you cannot bridge those bridges at layer two and it sounds from your post that you are confusing layer two and three (ARPA).

So if you have three Sparks, you have three two port switches. Take three two port switches and connect them in a ring and you have a collision storm. You have to use STP or similar to sort that out.

The ring is now collapsed to A-B-C (with no A-C) and to get from A to C you have to go via B which halves thoughput for those two paths: A-C and C-A.

Another "option" is to define two VLANs and use MSTP and layer three and hope the protocol that shuffles data can route packets effectively. So you get two sets of paths at layer two: A1-B1-C1-A1 and A2-B2-C2-A2 and you cut the two graphs at different points, so you get two disjoint graphs, for example: A1-B1-C1 and B2-C2-A2. However they will still overlap and it all falls apart, somewhat.

You can only link two Sparks together without a switch to get the full possible throughput. That is why Nvidia only offer a two pack option. Three or more requires a switch to avoid a path being used twice. Ethernet is not Token Ring! Mind you Tring was 16Mb/s - luxury when ethernet was 10Mb/s 8)

I've also had this discussion with folk when it comes to "hyper converged" virty systems: So we have three nodes with two NICs each for Ceph and we cable them up in a ring and it goes weird ... . At least there I'm only generally specifying 10G.

Now, do you really need the full 200Mb/s for clustering SParks? No idea yet, I've only got one and I've only got 40Gb/s QSFP+ to play with on my switches.

However I'm seeing value in the one box already at the moment and if that scales then I'll be buying more Sparks and a really funky switch when I need three Sparks and perhaps another switch down the line with some really fancy VLT or whatever wankery is the stacking du jour thing!

gerdesj··on Nobody knows what a used GPU cluster is worth
Tell that to my switches and PC servers. They all spin up their fans in one go as soon as power good is received and the initial BIOS thingie has stubbed out its fag on the floor.

The PSUs are painting their nails when the fans go off initially. The GPUs, RAID controllers and co are still waking up.

A further counter example is an Equallogic PS6500. That has 48 3.5" spindles in it and three PSUs plus a few fans and two controllers. The whole thing boots in a couple of minutes.

gerdesj··on The small, real, original web
I'm still running multiple email systems the "old way". Been doing it for 30 years and don't intend to stop now, both at work and at home.

There are a few extra hoops these days to jump through ... but still it moves.

gerdesj··on Nobody knows what a used GPU cluster is worth
"Sounds like a plane taking off."

Helicopter. I live in Yeovil, Somerset, UK - there's a helicopter factory just down the road. I had a IBM "AS/400" or whatever they are called now in our computer room rack for a customer and it made nearly as much noise as everything else put together. It was clearly tuned for start up noise to impress because they would fire up in sequence, rise to a crescendo and then slow down in sequence to just a din instead of painfully loud.

A switch or PC server on boot will normally run up cooling fans instantly to max as a default protection mechanism until the "OS" has started and sensors read and then the fans will slow down to deal with the actual thermal load.

If you switch off your air conn, it gets noisy, quickly. Recently in the UK we are seeing routine temperatures around 30C and we broke 200 odd year records for temperatures a few weeks back. I know its even worse elsewhere but our infrastructure is not designed for this. Here we are at the same latitude as Calgary AB!

gerdesj··on Nvidia DGX Spark as a daily driver
Actually, its ~119GB usable (I have one). You can shutdown a lot of unneeded services if you only use it remote which will trim a lot more fat. You can enable the RDP service if you don't want to sit in front of it but get a desktop interface.

The "shitty" network is 10Gb/s and wifi7! You get a twin QSFP28DDlol+++ (I jest) that each run at 200Gb/s - not for the casual home user but handy at work, although I "only" have 40Gb/s on my switches sigh. With and no switch two you can do a three node cluster with some careful networking. If you want to do more then a switch is needed and it will need to be pretty funky! That said you could wire them up in a circle and use VLANs and MSTP and accept less than 200Gb/s per link. You'll probably need Openvswitch and a lie down afterwards.

I'm not a fan of the Gnome desktop but it works well enough and I think the Nvidia customised Ubuntu is well thought out. You get all the complicated NVidia extras pre-installed, along with docker (full fat, not the Ubuntu one) for a fairly quick start. It includes Ubuntu Pro which is free for five systems anyway but its nice to see it pre-installed.

You can run quite decent models on this thing see: https://spark-arena.com/ Also see "DS4".

We blew abut £4000 on one and it will pay for itself in a few months. I tried pricing up an Apple thingie and the Store wouldn't offer me more than 96Gb of RAM and a delivery date in Q3 at the earliest. Our Spark rocked up next day. They seem to come in 1TB or 4TB SSD variants. 1TB is enough for me and saves a lot of cash - keep an eye on your model downloads and ruthlessly delete old experiments. docker system prune.

We went for the Asus variant that has active cooling and I stuck it in the ceiling cable tray over our computer room racks. It sits on 1½" stainless steel mesh with lots of clearance in an actively cooled environment.

gerdesj··on A digestion of the Jacobian conjecture counterexample
"problems that were hard"

They are still hard problems - As we say in the UK: "one swallow does not a summer make".

As you well know: birds are not renowned for their arithmetic skills, nor eating encourages the weather!

gerdesj··on Who's afraid of Chinese models?
"China will end up owing (sic) AI"

I think you hit the nail on the head - right there!

gerdesj··on "Disk Not Ejected Properly": What It Means
Replace the word "ejected" with "removed" as appropriate and the error becomes apparent.

No one "ejects" an external hard disc, you remove or disconnect it. You do eject a CD or a DVD.

Eject is a forceful removal ... if my memory is not totally shagged - iacto (Latin - I throw) or similar.

To be fair I have seen a few ejections or the aftermath of discs (hard/floppy/CD/DVD) and not considered them ... a disconnect event 8)

I suggest Apple go back to school and dispense with the lazy error reporting.

gerdesj··on Microsoft has released software updates to plug at least 570 security holes
To loosely paraphrase in ITese: "Write MVP, get MVP issues"
gerdesj··on Kimi K3: Open Frontier Intelligence
What sort of swans are you on about?

All the ones I'm familiar with are veggies, with webbed feet and squawk a lot.

gerdesj··on Kimi K3: Open Frontier Intelligence
"most important technology in human history"

So far it rates "quite important" and certainly not "paradigm shift".

I've just spent most of the day wading through vibed blogs and what not to glean info on ... setting up LLMs! The content on the web is already in a parlous state and rapidly getting nicely but rather the same presentation and mostly right but somewhat wrong, often in crucial parts.

On the bright side I did find an absolute belter of a vibed site and it was only mildly wrong but I was able to sort that bit out and to be fair I think it was written up by an expert with help from a LLM and had a genuine human mistak in it.

Anyway, I suggest you might like to look at the internet as a whole as a paradigm shift and reserve judgement on LLMs and this decade's version of AI.

gerdesj··on Microsoft has released software updates to plug at least 570 security holes
"Microsoft attributed the burgeoning patch counts to vulnerability discoveries aided by artificial intelligence."

If only real intelligence found the fucking things instead.

As ye sew, so shall ye reap!

gerdesj··on How Doctors die. It’s not like the rest of us (2016)
Does the US have the concept of DNR (Do Not Resuscitate)?
gerdesj··on The glass backbone: Why the Army's logistics will break in the next war
My old man used to say: "an army marches on its stomach".

Most people hereabouts will be wittering on about how best to kill people/do stuff with drones and forget that logistics is rather more complicated than killing things.

Fundamentally: people need food, water and shelter. Vehicles need fuel, mechanics and stuff. Killing people and destroying stuff needs ammunition or at least something sharp (and that will need something to keep it sharp).

Then you need to coordinate all this stuff, along with comms and a lot more details that I've not mentioned.

Then you need to persuade your troops to do their medieval best on the opposition and hope it works.

gerdesj··on Why American ambulance rides are so expensive
Given you find this is _normal_ for a six mile ambulance ride: "and $11,670 as a “base rate.”"

What on earth would you consider normal for a helicopter ride from Exeter to London?

That's roughly 150 miles as the crow flies. Pilot, co-pilot and a medic, minimum crew for say 1.5 hours. Each way, so 300 miles of fuel and aircraft lifetime and three hours of crew cost, not to mention ground crew etc.

My dad got that on the firm when the shit hit the fan and he needed to be seen by specialists in the Royal Brompton and Royal Devon and Exeter decided that was his best shot at life. That was 15 years ago.

Anyway, the OP's bill looked pretty normal until the 11,000 base rate nonsense. How can that possibly be justified?

gerdesj··on Pint in England
Perhaps (citation needed)! Barrel usage in Britain is a lot older than the Roman occupation of Britain. A cup is not a barrel.

If I was to bet, cooper is probably an anglicized form of a brythonic language word. Any Welsh, Scottish, Irish, Cornish or even Cumbric (int al) speakers hanging around here?

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