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Posts for: Doc Barry
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May 31, 2021 17:31:17   #
Good shot Bridges. 18,000 more containers to figure out what to do with each trip.
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May 16, 2021 13:53:57   #
Diamond blade. Flip the blade and mount blade after inserting it through the bearing. Saber saw a possibility too.
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May 16, 2021 13:21:57   #
Since you have experience with pullers, you would simply use a hacksaw with an appropriate blade and cut through the darn thing. If that doesn’t release it, then make another cut and remove a segment of the bearing.
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May 16, 2021 13:18:48   #
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May 11, 2021 16:33:40   #
burkphoto wrote:
I just want a robot cook. And that danged transporter the '60s promised us! (The Star Trek kind, not the VW microbus)


My wife keeps pestering me to buy or build a robot maid like Rosie (Jetsons). Best I have done was bring Vector Robot into our home. Only 3" tall, but has become a family companion!
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May 11, 2021 15:00:09   #
burkphoto wrote:
Thankfully, we have evolved from those evil little annoyances.

When I was in college in the mid-1970s, Davidson had an NCR Century 100 with 64K of memory. Input was always from punch cards. Output was always to line printer. Storage? What storage? We kept our stacks of cards in order!

I thought I'd reached nirvana when I saw my first Apple II!


Hey Burkphoto,
Those unused punch cards were great for writing notes on the backside and using for markers in books.

In the early to mid 60s, I was one of a few students at Georgia Tech allowed to directly operate their Burroughs 220 computer. It did have a card reader, but I could program it faster for my needs in machine language by flipping switches on the console and reading the neon lamp displays of the registers. It did have storage which was a big tape machine. The printer was fantastic and was incredibly fast! The advances in computer technology over the past 50 or so years is unbelievable, and both a blessing and a curse.
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May 11, 2021 13:02:36   #
RS wrote:
All of this sure brought back a few memories to me, too. Sorry, but my 'rememberizer' doesn't work too well these days; but back in my early days in the Army, I repaired IBM and UNIVAC computers(?) - 'card processors'. I did so during my trip to Vietnam in '67 - '68, then at Ft Hood for a few years. Being in the repair field, we also had to know the jobs of 'programmers' and 'operators', so we could point out that they often were doing something wrong as opposed to there being a mechanical problem with the machines. I left that field of work when the chance came along, and I didn't regret it.
All of this sure brought back a few memories to me... (show quote)


I still have a box of unused punch cards. Sometimes I give a few away to folks who have never seen them. 😃
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May 9, 2021 12:38:50   #
TriX wrote:
Here’s the storage for the 1 PFlop Machine at Argonne (Mira). 16,600 drives in 18 racks (all inserted by us) and 350 GBytes/sec sustained I/O performance (and that’s now 10 year old technology)


Beautiful equipment TriX. Thanks for sharing this. When I was a teenager in the late 50s, the Regional Engineering Director for IBM lived across the street from us. He had an extra detached garage he used for storing "junk" parts from the IBM computers. He of course gave me whatever I wanted to play with and he taught me a lot. Computers then were tube-based and the core memory was exactly that ... tiny cores with read, write, sense coils wrapped around then. He said that young women made these by hand because machines could not do it as well. Never understood why, but each core was large enough to see the windings without using a magnifying glass. Advances came quickly after that. A decade later or so, I was interviewing with Dr. Cray and marveling at the incredible achievements happening at CDC. For several reasons, I took a job at TI rather than the one he offered me at CDC. He was a brilliant man! You are a fortunate person TriX to have (and I guess continue to be) been involved with these hyper-super machines!
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May 8, 2021 23:32:10   #
TriX wrote:
If high performance computing interests you, the Top 500 list is interesting reading and changes monthly. As of November, Japan has the fastest machine at ~500 PFlops, >7 million cores and 30 megawatts of power. That will change late this year when the Argonne, Oak Ridge and LLNL Exaflop machines come on line. https://www.top500.org/lists/top500/2020/11/

Thanks. Interesting reading.
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May 8, 2021 22:58:25   #
TheShoe wrote:
Isn't the flop specifically a floating point operation? They are inherently slower than the addition (including subtraction) and multiplication (including division) operations, making a petaflop a much loftier goal.


It is flops or FLOPS. A FLOP or flop is the second state of a flip-flop. 🤔😉. Sorry, but could resist.
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May 8, 2021 19:54:11   #
TriX wrote:
And this type of computing power changes the way we do science. Rather than the classic hypothesis/experimental design/one-experiment-after-another model, we can model every possibility in near real time.


A real possibility TriX, but I fear even more massive code bloating. 😁
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May 8, 2021 17:47:54   #
wham121736 wrote:
For the uninitiated a petaflop is a computing speed of one thousand million million mathematical operations per second!


Most specifically, a FLOPS means a floating point operation per second. PetaFLOPS = 10^15 floating point operation per second. Now that we are seeing exaFLOPS (10^18 floating point operation per second), I expect that we will achieve zettaFLOPS (10^21 floating point operation per second) perhaps by the end of this decade or the next.
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May 8, 2021 14:07:01   #
TriX wrote:
And we are preparing to deploy the world’s first ExaFlop (1000 PetaFlop) systems at Argonne National Labs, Oak Ridge and Lawrence Livermore National Labs. We’ve come a LONG way baby...)


Amen to that. Apple has purchased I understand the entire production of the massive plant in Taiwan that produces 3 nm technology devices. Going from 3 to 2 nm is a big deal. These new machines at the National Labs will advance our modeling an simulation capabilities enormously!
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May 8, 2021 13:51:59   #
TriX wrote:
Yep, when I started at IBM in the mid 60s, we replaced a giant Univac vacuum tube computer at the Univ of N.C. with a 360 system that took up about 5% of the room (and got rid of most of the A/C plant which was almost as large). Today, I probably have a thousand x the compute power and storage on my phone (the 360 had 32 KB of core storage)


Hi TriX,

Back in the late 60s and early 70s I worked at Texas Instruments in Dallas. TI had a deal with IBM that TI would get the first of each latest machines. As I recall, in 1968 the IBM 360/?? we had enjoyed 4 MB of memory and was soon upgraded to 8 MB. With about 40,000 employees on site at the time (only several thousand engineers), turnaround time was "just" typically three days. Of course, the accounting department took priority on run scheduling! FWIW, in 1971 and after much fighting with the Computer Dept., I was allowed to install a CDC terminal in my work area and my group then enjoyed 10-30 minute turnaround. As I recall, the CDC network had CDC 7600 machines and was a bit faster than the IBM 360 we had ... but turnaround time was even far more important to us. At that time these machines could do perhaps about 35 MFLOPS. Today, FPGAs and GPUs can run at many teraFLOPS!
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May 3, 2021 13:55:40   #
ClarkJohnson wrote:
One of the senior managers in a corporation I worked for once had a sign on his wall, « Age and Treachery Beats Youth and Skill Every Time. »


I saw one that read "Wisdom of age and Treachery beats Youth and Tenacity every time!"
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