Question about Raspberry Pi 3 Model B+ as a cluster!

[ClassicMan]

Hello everyone


I'm kinda confused about this idea regarding Raspberry Pi 3 Model B+


if I buy 5 of Raspberry Pi 3 Model B+ as a cluster - does that means the performance will increase from 1.4Ghz to 7Ghz (5*1.4Ghz) ?

will that speed it up much faster then standalone desktop computer i5 2.5Ghz when running python coding for the images resize?

Looking forward to hear your advice

ClassicMaN

 

[Mega6]

wut? No. ARM <> X86/64

 

[drescherjm]

does that means the performance will increase from 1.4Ghz to 7Ghz (5*1.4Ghz) ?

No it does not. Not even close.

 

[ClassicMan]

thanks for the reply, what a pity that cant do it

 

[drescherjm]

You would be better served by an 8 core / 16 threaded Ryzen CPU.

 

[defaultluser]

Clustering can work with any old crappy chip, but you need a better low-latency communication interface than crappy USB 2.0 (think Gigabit Ethernet at the least).

Of course, you still have to write the software that glues all those pieces together. In the end of the day, it takes you less time and effort to just buy a single machine that does it all, and you can just run a single program.

Professionals only use clusters when the problem they are tackling is too big for a single computer to handle, or when the load is highly-variable (webservers). And then they make sure to buy machines with high-speed interconnect, or buy add-on cards for faster buses.