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Raspberry Pi Server Mark III

uplab.pro

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Re: Raspberry Pi Server Mark III

#52

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Yeah, I recently spied the 4 node Jetson Mate carrier board on CNX that facilitates building your own Multi GPU cluster ;)

https://www.seeedstudio.com/Jetson-Mate-Cooling-Kit-p-4784.h...

They recommend Kubernetes for private cloud workloads. But I am wondering if there isn't room in the ecosystem for a new virtualization / containerization technology to orchestrate tasks on multi gpus? Have heard NVidia is developing its own OS, or rather two, one for Cloud AI and one for real time robotics, but its still research phase...

Re: Raspberry Pi Server Mark III

#53

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Which USB thumb drives and which SD cards?

Do you overclock?

If you ran at 99-100% CPU on average, would you still not need fans?

Re: Raspberry Pi Server Mark III

#54
post #52

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Yeah, I recently spied the 4 node Jetson Mate carrier board on CNX that facilitates building your own Multi GPU cluster ;) https://www.seeedstudio.com/Jetson-Mate-Cooling-Kit-p-4784.h... They recommend Kubernetes for private cloud workloads. But I am wondering if there isn't room in the ecosystem for a new virtualization / containerization technology to orchestrate tasks on multi gpus? Have heard NVidia is developing…

yeah, I'm excited to get my hands on some Jetsons too. the 4gb memory on the pi is really a big pro though. when one of these SBCs finally comes with 8GB and GPU acceleration for < 100$ we will see some real progress I think.

Re: Raspberry Pi Server Mark III

#55
post #18

Earlier quoted context omitted.

That depends on the task.

I challenge you to find a single application where a setup of 14 raspberry pi's will beat the new mac mini.

Maybe some ram based application? Opening 100gb csv in pandas? Redis with more than 8gb data?

Re: Raspberry Pi Server Mark III

#56
post #10

Earlier quoted context omitted.

Its cool and fun and teaches you a skill at a low price point. There is essentially no functional reason to do this over a single high power server unless for some reason you need a bunch of ARM servers for something.

All fourteen Pis, even v4s (which are significantly hungrier), would be lower power (as in electrical draw) than even a feeble (as in compute power) traditional machine. If you can distribute your workload (or it's not intensive anyway), i.e. having no single machine with a faster processor, then I think it's a good choice, cheaper to run. Edit: I'm happy to be corrected if down-voters would like to reply... A Pi 4 d…

It's not that difficult to have a reasonably modern desktop PC idling more in the 10-20W range. For 100W you need to do something seriously wrong, or add extras that would blow up the Pi usage too (e.g. a home server full of hard disks will of course use more power, but so would Pis with the same number of drives)

Re: Raspberry Pi Server Mark III

#57
post #53

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Which USB thumb drives and which SD cards? Do you overclock? If you ran at 99-100% CPU on average, would you still not need fans?

any usb 3.0 drive works, but I am using SanDisk Ultra Fits. price per byte is less and performance is similar or slightly better for reads and way better for sustained writes.

No Overclock.

99-100% CPU on all 4 cores for hours and no throttling. they do run at 75-78C instead of 65C, but I could not get them to throttle.

Even with the cheapo 3 piece heat sinks there was almost no throttling, but they did throttle occasionally after sustained stress.

Re: Raspberry Pi Server Mark III

#58

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Example case which does away with the need for fans is: https://www.amazon.com/Geekworm-Raspberry-Computer-Aluminum-...

I like this one, a little more expensive but makes the Pi into a NUC style SFFPC:

https://www.waveshare.com/pi4-case-argon-one.htm

Edit to add the fan is optional, so it can run fanless with no throttling.

Re: Raspberry Pi Server Mark III

#59
post #53

Running a 6 node cluster of Pi4s at home now. Did some benchmarks. Long story short. USB thumb drive boot disks are better performance and cheaper than SD cards. Fans are completely unnecessary on a Pi4 with an aluminum heat shield style "case". They do run hotter than with a fan, but they will not be heat throttled with recent firmware.

Which USB thumb drives and which SD cards? Do you overclock? If you ran at 99-100% CPU on average, would you still not need fans?

missed the SD cards. I am benchmarking against the best SD cards I can get because that is always the bottleneck on the Pi to my experience. The bandwidth and clock rate on USB3 vs sdcard bridge is just faster, but the media is also cheaper in USB3 format in general.
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