Someone likely would just docker/vm to partition that 80 cores into micro-service handle httpd proxy and app, db backend.
Those app/VM can easily be converted to app running pi modules.
20 pi modules likely have much better DDR, SSD, Network bandwidth. Probably scale from 2 pi to 200 pi as easily as typical vm setup - and it comes with GPUs for free for those need them.
> 20 pi modules likely have much better DDR, SSD, Network bandwidth
20 pi modules of 8GBs is only 160GBs.
Ignoring that: Bigger nodes are better in all practical scenarios. With 768 GBs of RAM, this singular big server can likely keep in-memory a large collection of information (ex: all of English-Wikipedia likely fits inside of that RAM).
20x Rasp. Pi cannot access all of English-Wikipedia in RAM. This means that you can't index, you can't search, you can't analyze the pages. Even if you could: you'd need to have a collaborative external memory model, which is not easy to program.
80-cores with access to all 768GBs can do many, many more things than 20x 4-core Rasp. Pi working on only 32GB at a time.
All if the text of English Wikipedia is only ~12 Gb last time I checked a year or so ago. English Wikipedia with pictures is 10+ Tb, but your point stands about memory needed.
But I do go running in the park and follow a few HIIT youtube workout. There are a lot of those in youtube. Just find the one with intensity and length you like and follow them and advance to next level in your own place.
It definitively the gateway drug that hook me into computer.
Bought $6 book on how to program Sinclair computer and copy the Basic Code from the book into that computer and record that program into audio cassette tape and output to analog TV.
Now I working daily with systems that have 128 cores, 256 threads, 256-768MB of L3 cache memory, 1TB DDR+ 8xGPUs each with 32GB of HBM.
I still think I got more "High/Rush" from the sinclair 1000 37 years ago than the latest 128C/256T CPU. Now is a job, back than it was an adventure, exploration to whole new world!
My first computer was a Timex Sinclair 1000, too. That keyboard was too much, but you kept at it! And if you even looked at that memory module funny, it would short out and you'd have to stay up all night and re-key everything back in by hand. We got more use out of the TRS-80s at school, but having a machine to ourselves at home was influential.
I had a Timex/Sinclar 1000 with the 64K memory module that sort of worked half the time. Zot, there it goes again and I have to type everything in again because I didn't save it to tape.
Use simple gdb script, break, print vals, cont,
This allows one to debug and app's internal states without rebuilding with printf enable.
Combine the above with automated regression test system, one to debug very hard problems that might take hours/days to repro.