Parallella, Raspberry Pi, FPGA & All That Stuff

PorkyPies
PorkyPies
Joined: 27 Apr 16
Posts: 199
Credit: 33740629
RAC: 945

Got 2 more Pi3's

Got 2 more Pi3's yesterday.

Added number 8 to the farm. Went to copy backup from another one and write to new SD card only to have WinDiskImager complain new SD card was smaller. They are all Sandisk Ultra 16Gb cards. I ended up clean installing it, starting with Jessie-lite and upgrade it to Stretch and then update kernel which gave me 4.4.12.

Today I swapped out number 7 thinking it was faulty. Went to upgrade kernel and bricked it. Apparently it wasn't faulty. So clean install from Jessie-lite, upgrade it to Stretch and did a kernel update which now is up to 4.4.13.

Just as well I have a word doc with step by step instructions :-)

Anonymous

currently running 5 Pi3's

currently running 5 Pi3's (ubuntu 15 and 16 mix) in the PiVE - none are currently in high limit alarm (>54C = flashing red LED). ambient room temp ~26C.

KF7IJZ
KF7IJZ
Joined: 27 Feb 15
Posts: 110
Credit: 6108311
RAC: 0

RE: currently running 5

Quote:
currently running 5 Pi3's (ubuntu 15 and 16 mix) in the PiVE - none are currently in high limit alarm (>54C = flashing red LED). ambient room temp ~26C.

More pics from more angles please!

My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ

KF7IJZ
KF7IJZ
Joined: 27 Feb 15
Posts: 110
Credit: 6108311
RAC: 0

RE: Went to copy backup

Quote:
Went to copy backup from another one and write to new SD card only to have WinDiskImager complain new SD card was smaller. They are all Sandisk Ultra 16Gb cards.

I've run in to this before and when it's happened, try unplugging and plugging back in your card reader.

My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ

Anonymous

RE: RE: currently running

Quote:
Quote:
currently running 5 Pi3's (ubuntu 15 and 16 mix) in the PiVE - none are currently in high limit alarm (>54C = flashing red LED). ambient room temp ~26C.

More pics from more angles please!





The PiVE could be encased in a plastic shell but ...

I am currently in the middle of a bad thunderstorm and 3 hours into a 5 hour 3D print. Fingers crossed.

KF7IJZ
KF7IJZ
Joined: 27 Feb 15
Posts: 110
Credit: 6108311
RAC: 0

RE: The PiVE could be

Quote:


The PiVE could be encased in a plastic shell but ...

I am currently in the middle of a bad thunderstorm and 3 hours into a 5 hour 3D print. Fingers crossed.

A UPS was the best accessory I ever bought for my 3d Printer! I learned the hard way losing a power 4 hours in to a 6 hour print. Fortunately I worked with a guy that could edit the GCode to resume, but it was still a hassle!

Very cool!

Discovered some weirdness tonight with my results - the new Pis aren't producing like they should - https://einsteinathome.org/node/198639

My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ

PorkyPies
PorkyPies
Joined: 27 Apr 16
Posts: 199
Credit: 33740629
RAC: 945

RE: RE: Went to copy

Quote:
Quote:
Went to copy backup from another one and write to new SD card only to have WinDiskImager complain new SD card was smaller. They are all Sandisk Ultra 16Gb cards.

I've run in to this before and when it's happened, try unplugging and plugging back in your card reader.


Unfortunately it's a laptop and built in. I did remove and insert SD card but it made no difference.

poppageek
poppageek
Joined: 13 Aug 10
Posts: 259
Credit: 2473733872
RAC: 0

I have not tried it yet but I

I have not tried it yet but I read this was good for burning images to SD and USB. Etcher.http://www.etcher.io/

They also have something for updating images in mass. Again I have not used it.

https://resin.io/

Anonymous

RE: A UPS was the best

Quote:

A UPS was the best accessory I ever bought for my 3d Printer! I learned the hard way losing a power 4 hours in to a 6 hour print. Fortunately I worked with a guy that could edit the GCode to resume, but it was still a hassle!

What size UPS did/do you have? And how much runtime do you get out of it. The problem with Florida is when we loose power its usually for 10 minutes or longer.

How did he determine where in the gcode that the print failed?
I would certainly like to get a handle on how to do this. I can edit the gcode but again how do you know in x,y,z where the power went off? if you know that then you can locate those coords in the gcode and restart the print from there. Just thought I'd ask. If you know of link just point me there. tia.

Quote:

Very cool!

thanks.

KF7IJZ
KF7IJZ
Joined: 27 Feb 15
Posts: 110
Credit: 6108311
RAC: 0

I now have all 8 Pi 3s

I now have all 8 Pi 3s online, bringing my Pi total to 16 (half 3, half 2).

I really want to seriously start a conversation on getting the Gravitational Wave work running on my farm. I was asked over the weekend about the efficiency in terms of power (RAC/Watt) which isn't that great of a story per se for the current work units. If it takes 5 days to do a GW work unit and earn 2000 credits vs a Pi 3 taking ~11.5 hours to earn 62.5 for a total of ~650 credits.

Bikeman - have you been satisfied by validation results? Any update on when we can start to play with this? Given your warning about runtime vs deadline, I would only be interested in running this on the Pi 3 nodes.

I also took this weekend to clean up all of my Pi 2 nodes - killing 1 SD card in the process. All of my Pi 2 nodes but one are now on the latest version of Jessie now running the latest version of openssl, alleviating the need to hold ca-certificates.

Pic of the Pi 3 Cluster - https://twitter.com/KF7IJZ/status/741737620657475584
Pic of both clusters - https://twitter.com/KF7IJZ/status/741739735110979584

My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ

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