![]() Similarly, if you're storing a lot of data on nonvolatile drives, that probably isn't great for your cluster either. You also have different memory speeds because the Pi's RAM is slower than the bus available on the Intel chip. If each core is working on large objects or generating lots of temporary data, memory could quickly become your bottleneck. If your task is light on memory, usage, this is no problem. If your nodes are 1 GB Pis, then they'll probably spend more time loading stuff into memory because each core (assuming they're doing broadly the same task and running independently) has at most 256 MB not including the kernel before it starts impeding another core's operations. Even with that, you can get into different situations.įor example, you have memory to consider. Since you're using a networked cluster of Pis, this means your task has to be very parallelizable to run on 80 cores and probably not dependent on real-time coordination between cores so they don't slow down to check on other nodes too often. For one thing, there are a lot of appropriate jobs to compare it to. There isn't a single niche that Pis fit and anything else is either too big or too small. For some jobs it is too big, power hungry or expensive, for others it is too slow or lack sufficient I/O throughput. It has great support for hobbyists and experimenters but aside from that it is far from unique or exceptional. Yes the Pi has its place, it's a useful, mid priced, mid performance option. The relentless Pi comparisons (always negative) for anything else in the SBC market don't demonstrate insight but ignorance of the wider market. ![]() It always happens of course but the Pi is not unique or pioneering, the were earlier alternatives, there are cheaper, faster, smaller or longer lived SBC alternatives with I/O options that make the Pi look amateurish. However I wouldn't compare it to the Pi, they're different markets, the price tag alone should tell you that. If you had clicked through to the manufacturer's site it wouldn't have taken long to see there are 16 GPIO pins and 6 serial ports which are arguably more useful in my book.
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