The current beta version for NEON enabled ARMv7 linux hosts, so also RaspiPi2 and 3, contains a built-in wisdom file. The regular (non-beta) NEON version allows storing custom wisdom files in /etc/fftw/wisdomf .
I was looking around for Pi3 heatsinks when I ran across this case for the Pi2 and Pi3 called the Invasion from C4 Labs. They now include heat sinks and a 40mm fan. I still think he put the top on the wrong way around (the writing should be visible in my opinion).
I was looking around for Pi3 heatsinks when I ran across this case for the Pi2 and Pi3 called the Invasion from C4 Labs. They now include heat sinks and a 40mm fan. I still think he put the top on the wrong way around (the writing should be visible in my opinion).
I received my Pi 3 today and installed Ubuntu's Mate for Pi. When booting I get a "rainbow" screen and that is all. I tried another SD card with Ubuntu Mate from and working Pi and have the same problem. I then installed Raspi Jessie on the SD card and the Pi 3 booted.
Anyone using Ubuntu on a Pi3? or have any suggestions?
I received my Pi 3 today and installed Ubuntu's Mate for Pi. When booting I get a "rainbow" screen and that is all. I tried another SD card with Ubuntu Mate from and working Pi and have the same problem. I then installed Raspi Jessie on the SD card and the Pi 3 booted.
Anyone using Ubuntu on a Pi3? or have any suggestions?
SOLVED:
The Pi 3 IS compatible with Ubuntu Mate. What you need is this img file:
ubuntu-mate-15.10.3-desktop-armhf-raspberry-pi-2.img
the img file: ubuntu-mate-15.10.1-desktop-armhf-raspberry-pi-2.img will result in the rainbow splash screen and the PI 3 will not boot.
Some have suggested that if you have an Unbuntu mate Pi 2 img file that has been brought up to latest revision then you could insert that in the Pi 3 and it would boot. I have not done this so I cannot say for certain. The "15.10.3" does work however.
Overall, I wanted to share my experience using Pi 2s and Pi Zeros for EAH.
Currently I have an 8 node Pi 2 cluster online. 1 Node serves as the Networking master (also crunching) - WiFi and ethernet to a low power switch, all other Pis use ethernet to that switch. Seven of the nodes are successfully overclocked to 1Ghz while one is at the stock speed of 900Mhz. That particular node used to run just fine at 1Ghz, but then it started getting errors on work units left right and center. I even tried a clean install on that machine. Some investigation leads me to believe that it was a memory problem causing the faults, though extensive memtester testing showed no error. All units have a wisdom file and they are now running Beta work units. I am running Raspbian Jessie Lite (Headless) and BOINC is installed from the repository (7.4.2). Some observations from this cluster:
-1Ghz Machines complete a non beta WU in just under 50,000 seconds.
-Beta work units actually have pushed the duration of WUs by ~1,000 seconds
-The stock speed Rpi takes ~59,000 seconds to complete WU (-10% CPU speed = ~15% increase in time!): https://einsteinathome.org/host/12210040/tasks
-With no Wisdom, results seem to be ~70,000 seconds
-At one time, one of my Nodes was approaching a RAC of 425 but this has significantly declined for some unknown reason.
-For mature units (>1 month continuous operation), RAC seems to drift between 350 and 400
-I run a mix of Al and Cu heatsinks. The Pis are stacked together vertically and I have a fan blowing air. In a room that has an ambient temp of 21C, they run anywhere from 41C to 47C - PLENTY cool
-The whole cluster is mounted on a 5V 10/100 8 port Switch. Everything is USB powered from a 96Watt 10 port USB power supply. All told, the whole cluster draws 30 watts for a total of ~ $26/year in operation.
-I expect this cluster will peak out at a RAC of ~3000
-In its initial 3 node configuration, I had my Pi2s running overclocked completely stable for >3 months. Taken offline for me to physically rebuild the cluster and add nodes.
I also have the good fortune to own 10 Pi Zeros. I was hoping this would be a low cost/high densisty approach to building large cluster, but I have all but given up on this approach. Following this approach (http://blog.gbaman.info/?p=699), I had configured each of my Pi Zeros as a USB Ethernet Gadget so that nothing more than an SD card and a USB cable was needed to get them online. I had configured a "Master" node that could automatically detect a USB Ethernet Zero using udev, add it to a bridge interface (br0), and give it an IP address. The first problem I ran in to was that using a Pi 2 as the "master", I could not plug more than 5 Pi Zeros into USB without it taking WiFi offline and making net comms to the Zeros unuseably slow (never explored why, but suspect the wimpy USB chipset on the Pi 2 is to blame). 1 Pi Zero running at 1Ghz would take ~100,000 seconds to complete one WU. This made them very slow. If you abstract out that 1 Pi 2 @$35 can return 4 WUs every 50,000 seconds, or 8 WU every 100,000 seconds and compare that to needing 8 Pi Zeros @$5 each to do the same thing, it's not cost effective for the performance you are getting. On the other hand, any crunching is better than none, and if these Pi Zero Cluster Hats ever get made (https://www.youtube.com/watch?v=RqcHj1DgAMM), I will make an effort to get them back online.
-A fully utilized Pi Zero drew ~ .3A and needed no heatsink (~42C in a 21C environmment)
I now have 5 Pi 3s, and am eager to start building a cluster, but I want to go slowly to understand heating (which seems to be a problem). I plan on using Al heatsinks, mounting them horizontally, and mounting some heavier duty fans. Claggy's results are very encouraging. If I understand the previous comments, it sounds like a separate wisdom hasn't been created specific to the Pi 3 (and I'm not smart enough to even know if that would matter, but I thought the NEON support on the Pi 3 is "better" than on the Pi 2).
One last thing that I've learned about the Pi 3 so far. I run my Pis over a Serial Console cable using GPIO pins for the UART. A Pi 3 using the latest version of Jessie will not work out of the box w/ a console cable - more information here: https://t.co/VKboROVc6l
If you find me on twitter, you can get loads of pictures of my efforts: [url]https://twitter.com/KF7IJZ[/url
I got 4 Pi3's to replace my Pi2's. I run Stretch on them and run them headless. I have copper heatsinks on the SoC only. They're plugged into a power cable (the newer 2 amp official ones) and a network cable.
To get the Pi3 going I simply took the Pi2 off-line, backed up the SD card and then put it into the Pi3. I fitted my last spare heatsink and off it went. I renamed it and did a fresh rpi-update on it to get the latest firmware. Temp at idle was 51 C as a naked Pi (ie no case). Ambient was 28 at that point. I then got 4 BRP4 work units and the temperature shot up to 81 C and that is with a copper heatsink. At that point I decided I better apply some airflow so pointed a desk fan at it which seems to have got it down to a more reasonable 52 degrees (room temp is 31 C). Its looking like it will come in around 10 or 11 hours for the work units (the Pi2 take 15.5 to 16 hours).
I never bothered with fans on the Pi2 but highly recommend one for the Pi3.
SD cards wear out and they start getting all sorts of weird errors. I typically get 9 months out of Sandisk ones before I have to replace them. The Pi2 also don't seem to like overclocking so I'm running them at stock speed.
I have some official Pi cases on order so when they finally arrive I will look at adding a fan. I will probably just cut a hole in the top and mount a 60mm fan.
SD cards wear out and they start getting all sorts of weird errors. I typically get 9 months out of Sandisk ones before I have to replace them. The Pi2 also don't seem to like overclocking so I'm running them at stock speed.
I just got my Pi 3 today and after a bit of a rough start got it up and running with Ubuntu Mate. I installed a USB to mSATA disk drive and moved the /root partition off of the microSD and onto the mSATA drive. I am hoping that this will hold up better with the constant reads/writes that crunching exposes a Pi to. I have at least a couple of days work to do before I can commit it to crunching and I am interested in how warm it will get.
The current beta version for
)
The current beta version for NEON enabled ARMv7 linux hosts, so also RaspiPi2 and 3, contains a built-in wisdom file. The regular (non-beta) NEON version allows storing custom wisdom files in /etc/fftw/wisdomf .
That's great, thanks for
)
That's great, thanks for clarifying :)
I was looking around for Pi3
)
I was looking around for Pi3 heatsinks when I ran across this case for the Pi2 and Pi3 called the Invasion from C4 Labs. They now include heat sinks and a 40mm fan. I still think he put the top on the wrong way around (the writing should be visible in my opinion).
https://www.youtube.com/watch?v=aRetB3cMz-A
BOINC blog
RE: I was looking around
)
This link provides a better look at this case.
I received my Pi 3 today and
)
I received my Pi 3 today and installed Ubuntu's Mate for Pi. When booting I get a "rainbow" screen and that is all. I tried another SD card with Ubuntu Mate from and working Pi and have the same problem. I then installed Raspi Jessie on the SD card and the Pi 3 booted.
Anyone using Ubuntu on a Pi3? or have any suggestions?
RE: I received my Pi 3
)
SOLVED:
The Pi 3 IS compatible with Ubuntu Mate. What you need is this img file:
ubuntu-mate-15.10.3-desktop-armhf-raspberry-pi-2.img
the img file: ubuntu-mate-15.10.1-desktop-armhf-raspberry-pi-2.img will result in the rainbow splash screen and the PI 3 will not boot.
Some have suggested that if you have an Unbuntu mate Pi 2 img file that has been brought up to latest revision then you could insert that in the Pi 3 and it would boot. I have not done this so I cannot say for certain. The "15.10.3" does work however.
Overall, I wanted to share my
)
Overall, I wanted to share my experience using Pi 2s and Pi Zeros for EAH.
Currently I have an 8 node Pi 2 cluster online. 1 Node serves as the Networking master (also crunching) - WiFi and ethernet to a low power switch, all other Pis use ethernet to that switch. Seven of the nodes are successfully overclocked to 1Ghz while one is at the stock speed of 900Mhz. That particular node used to run just fine at 1Ghz, but then it started getting errors on work units left right and center. I even tried a clean install on that machine. Some investigation leads me to believe that it was a memory problem causing the faults, though extensive memtester testing showed no error. All units have a wisdom file and they are now running Beta work units. I am running Raspbian Jessie Lite (Headless) and BOINC is installed from the repository (7.4.2). Some observations from this cluster:
-1Ghz Machines complete a non beta WU in just under 50,000 seconds.
-Beta work units actually have pushed the duration of WUs by ~1,000 seconds
-The stock speed Rpi takes ~59,000 seconds to complete WU (-10% CPU speed = ~15% increase in time!): https://einsteinathome.org/host/12210040/tasks
-With no Wisdom, results seem to be ~70,000 seconds
-At one time, one of my Nodes was approaching a RAC of 425 but this has significantly declined for some unknown reason.
-For mature units (>1 month continuous operation), RAC seems to drift between 350 and 400
-I run a mix of Al and Cu heatsinks. The Pis are stacked together vertically and I have a fan blowing air. In a room that has an ambient temp of 21C, they run anywhere from 41C to 47C - PLENTY cool
-The whole cluster is mounted on a 5V 10/100 8 port Switch. Everything is USB powered from a 96Watt 10 port USB power supply. All told, the whole cluster draws 30 watts for a total of ~ $26/year in operation.
-I expect this cluster will peak out at a RAC of ~3000
-In its initial 3 node configuration, I had my Pi2s running overclocked completely stable for >3 months. Taken offline for me to physically rebuild the cluster and add nodes.
I also have the good fortune to own 10 Pi Zeros. I was hoping this would be a low cost/high densisty approach to building large cluster, but I have all but given up on this approach. Following this approach (http://blog.gbaman.info/?p=699), I had configured each of my Pi Zeros as a USB Ethernet Gadget so that nothing more than an SD card and a USB cable was needed to get them online. I had configured a "Master" node that could automatically detect a USB Ethernet Zero using udev, add it to a bridge interface (br0), and give it an IP address. The first problem I ran in to was that using a Pi 2 as the "master", I could not plug more than 5 Pi Zeros into USB without it taking WiFi offline and making net comms to the Zeros unuseably slow (never explored why, but suspect the wimpy USB chipset on the Pi 2 is to blame). 1 Pi Zero running at 1Ghz would take ~100,000 seconds to complete one WU. This made them very slow. If you abstract out that 1 Pi 2 @$35 can return 4 WUs every 50,000 seconds, or 8 WU every 100,000 seconds and compare that to needing 8 Pi Zeros @$5 each to do the same thing, it's not cost effective for the performance you are getting. On the other hand, any crunching is better than none, and if these Pi Zero Cluster Hats ever get made (https://www.youtube.com/watch?v=RqcHj1DgAMM), I will make an effort to get them back online.
-A fully utilized Pi Zero drew ~ .3A and needed no heatsink (~42C in a 21C environmment)
I now have 5 Pi 3s, and am eager to start building a cluster, but I want to go slowly to understand heating (which seems to be a problem). I plan on using Al heatsinks, mounting them horizontally, and mounting some heavier duty fans. Claggy's results are very encouraging. If I understand the previous comments, it sounds like a separate wisdom hasn't been created specific to the Pi 3 (and I'm not smart enough to even know if that would matter, but I thought the NEON support on the Pi 3 is "better" than on the Pi 2).
One last thing that I've learned about the Pi 3 so far. I run my Pis over a Serial Console cable using GPIO pins for the UART. A Pi 3 using the latest version of Jessie will not work out of the box w/ a console cable - more information here: https://t.co/VKboROVc6l
If you find me on twitter, you can get loads of pictures of my efforts: [url]https://twitter.com/KF7IJZ[/url
[/url]
My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ
I got 4 Pi3's to replace my
)
I got 4 Pi3's to replace my Pi2's. I run Stretch on them and run them headless. I have copper heatsinks on the SoC only. They're plugged into a power cable (the newer 2 amp official ones) and a network cable.
To get the Pi3 going I simply took the Pi2 off-line, backed up the SD card and then put it into the Pi3. I fitted my last spare heatsink and off it went. I renamed it and did a fresh rpi-update on it to get the latest firmware. Temp at idle was 51 C as a naked Pi (ie no case). Ambient was 28 at that point. I then got 4 BRP4 work units and the temperature shot up to 81 C and that is with a copper heatsink. At that point I decided I better apply some airflow so pointed a desk fan at it which seems to have got it down to a more reasonable 52 degrees (room temp is 31 C). Its looking like it will come in around 10 or 11 hours for the work units (the Pi2 take 15.5 to 16 hours).
I never bothered with fans on the Pi2 but highly recommend one for the Pi3.
SD cards wear out and they start getting all sorts of weird errors. I typically get 9 months out of Sandisk ones before I have to replace them. The Pi2 also don't seem to like overclocking so I'm running them at stock speed.
I have some official Pi cases on order so when they finally arrive I will look at adding a fan. I will probably just cut a hole in the top and mount a 60mm fan.
BOINC blog
RE: SD cards wear out and
)
I just got my Pi 3 today and after a bit of a rough start got it up and running with Ubuntu Mate. I installed a USB to mSATA disk drive and moved the /root partition off of the microSD and onto the mSATA drive. I am hoping that this will hold up better with the constant reads/writes that crunching exposes a Pi to. I have at least a couple of days work to do before I can commit it to crunching and I am interested in how warm it will get.
I just put my first PI3
)
I just put my first PI3 online. W/ heatsink and a fan near, vcgencmd is reporting 46-47C after 10 minutes of all 4 cores running.
Just got my first reported results back. ~38K - 40K seconds for my first four WUs.
My YouTube Channel: https://www.youtube.com/user/KF7IJZ
Follow me on Twitter: https://twitter.com/KF7IJZ