The semiconductor technology used in a Cray-1 was Bipolar ECL (Emitter Coupled Logic). There was no CMOS high speed circuitry in use in the 1970s. CMOS transistors don't even have emitters :).
an RPi2 does. The original RPi gets 42MFLOPS on LINPACK, 68MFLOPS when overclocked to 1000MHz [roylongbottom's benchmarks on the RPi series]. About half the speed of a Cray 1.
One thing many of such comparisons to modern microprocessor-based systems are missing is that those are delivering their performance to a very large degree due to their high-performance caches. Crays have barely anything that looks like those caches, in particular data caches but are using other tricks to forcefeed the execution units with enough data and programmers and compilers knews how to exploit that. In practice that means modern microprocessors are starting blindingly fast for small problems but as soon as the data set outgrows the cache size performance drops baadly. The amazing thing about those old vector monsters is they just keep delivering performance as the problem size is growing.
I guess Im asking the wrong place but does anyone know a method to get back into an Instagram account?? I was stupid forgot my password. I appreciate any help you can give me
@Gabriel Jordan I really appreciate your reply. I found the site on google and I'm in the hacking process atm. Seems to take quite some time so I will reply here later when my account password hopefully is recovered.
Your smartphone is a magnitude faster than those ancient "super" computers. An AMD Ryzen R5-2600 reaches 2 TeraFLOPS floating point speed (including the integrated VEGA graphics chip). This is just amazing how much processing power you get for so little money.
Remember you also need to take into consideration the size of the problem that needs to be processed. A proper comparison would include memory latency,memory bandwidth and size of ram.
Keep in mind GPU flops are not the the same as CPU flops. GPUs are setup to work on problems that benefit from large scale parallelism where a single instruction performs the same operation on multi pieces of data which is what SIMD stands for single instruction multiple data. They are usually rated in single precision as well as you don't need double precision for rendering a video game in fact you can do a lot of short cuts to gain even more speed.
Wow, I've seen you are very active in the vintage computer scene on FB...and to see your reference to superdome made me very proud as the star of my collection is a superdome 2 (followed closely by my DEC 4000AXP). great video!
if someone from 65 years ago saw a modern high end itx form factor pc, they may have a hard time wrapping their head around the performance and how small it is. i wonder how big the computer from the mid 1950's have to be to have the same performance?
The 1980s supercomputers is changed by the laftop and android now but the most important hing to that computer is the master copy decompiler program for software recycling program that can sell and installed in the OS Androids and Laftop computer program
Pretty cool! Did you get the 100mbit networking and period correct terminal you were looking for? Alternatively, a Rasberry pi zero w 2 cluster shaped as a cray 1 would perhaps be an ok substitute.
Super cool allemaal! Het viel me op dat een collega van jou, waarvan ik dacht dat hij ook Nederlander was door zijn accent maar het niet blijkt te zijn, die met een vergelijkbaar project bezig was bijna precies dezelfde vraag had: hebben jullie nog een OS dat hier op kan draaien? Mocht je dat willen kan ik wel proberen die video voor je op te zoeken, als je hem nog niet hebt gezien is die voor jou zeker een aanrader.
The C1 only needs 3KW or two space heater's worth of power you could run it off a 20amp window AC plug. The C220 though would need 50 amps at 220V so it would need at a least a 60 amp breaker. If he has a home charging for an electric car a circuit that can power it is probably already in place.
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-45X4VP8CGtk.html Hier is de link naar de video, zeker kijken als je hem nog niet hebt gezien, echt iets voor jou.
(Sorry voor de late reactie) Die ken ik ja. Die Z890 (2004) is wel wat nieuwer dan mijn supercomputers (jaren 80 en 90). Voor hem was niet zozeer het probleem of het OS er nog wel was, maar of hij het van IBM mocht gebruiken.
+Camille Vanderhoven; for someone as obviously intelligent as your apparently are, it was (like) ‘nails on a blackboard, i.e. torturous, too hear the non-stop, repeated (ad nauseum!) use of the ‘filler-word’ ‘basically’.😡🤬😳😫 I was only at the 4-minute point into watching this - almost HOUR-long video, when I had to stop. I really wanted to watch the entire thing, but I had to stop. If anyone doesn't know what a 'filler word' is, it's a word which is put into speech, and adds nothing to the context, or meaning. Like sugar, it adds nothing. A simple way to'test' if a word's a 'filler' or not, is to say the sentence with all examples of the filler-words (s) removed. Though it was once primarily endemic in speech, with such words (as well as pairs, and groups of words) as 'like, such as, you know, 'y'know,' the use of social media has exacerbated the problem. One terrible example; 'basically' - is said here (in JUST the FOUR minutes I could watch) such a ridiculously huge amount, it's frightening. Most people aren't aware they're doing it, until someone let's them know, and though it's relatively easy for a person to stop, one must make an effort (for example, my mother had the habit of constantly adding my first name into almost everything she said to me. I only realised this when people asked me if I could stop using THEIR first name constantly. when speaking with then. Then, I began to pay attention to what my mum was doing to me, and it was 'deafening'. It might seem like 'nothing', but when you're talking - or, in a case like this, listening to someone - a lot, and this person's constantly saying 'filler words', it makes it impossible to communicate and/or listen. I've tried to be both polite and give a clear explanation as to what this is. All I ask is if you hear someone doing it, you let them know - let them know what it is, because many people aren't even aware they're doing it. Like chewing one's nails, it's a habit, and it CAN be stopped, but sometimes a little help and understanding's needed. It can be something, common, like, 'like', or, it can be the one which had become the 'number one' (NOT a compliment) filler word, 'basically'. Thanks.
