I run 4 concurrently on my 1gig ram RPi2s and RPi3, each task takes 202MB ram. They run headless and I increase the memory setting in Boinc to use 90% while computer in use.
I run 4 concurrently on my 1gig ram RPi2s and RPi3, each task takes 202MB ram. They run headless and I increase the memory setting in Boinc to use 90% while computer in use.
Did you reduce the GPU memory as well? You do that in raspi-config -> Advanced -> GPU memory. The minimum you can set it to is 16. It should give it a little more headroom. Stop BOINC before doing this change.
I also run 4 at a time with BOINC set to use 60% memory when in use and 90% when not. Seeing as they are headless it never thinks they are in use. I have Pi3’s and Pi3B+ all running the stock 1.47 app. Couldn’t get the optimised app to work reliably.
I run 4 concurrently on my 1gig ram RPi2s and RPi3, each task takes 202MB ram. They run headless and I increase the memory setting in Boinc to use 90% while computer in use.
Did you reduce the GPU memory as well? You do that in raspi-config -> Advanced -> GPU memory. The minimum you can set it to is 16. It should give it a little more headroom. Stop BOINC before doing this change.
I also run 4 at a time with BOINC set to use 60% memory when in use and 90% when not. Seeing as they are headless it never thinks they are in use. I have Pi3’s and Pi3B+ all running the stock 1.47 app. Couldn’t get the optimised app to work reliably.
Hey Mark
When I remember to do it yes I reduce GPU memory even on the few with a GUI. I usually run headless. I do not know why but one of my RPi3s started erroring out on all E@H tasks. Didn't feel like dealing with it so switched it to U@H. Guess I should do a reinstall of everything. When the electricity goes off and on and off a few times seems the SD cards often get corrupted. Happened twice this summer, bad storms, and it's been a pain trouble shooting it all and having to get new cards and reinstall. I've got a stack of bad SD cards form it. Only time I ever have a failure.
@robl Canakit sells on Amazon too. I've had good luck with their power source.
I run 4 concurrently on my 1gig ram RPi2s and RPi3, each task takes 202MB ram. They run headless and I increase the memory setting in Boinc to use 90% while computer in use.
Did you reduce the GPU memory as well? You do that in raspi-config -> Advanced -> GPU memory. The minimum you can set it to is 16. It should give it a little more headroom. Stop BOINC before doing this change.
I also run 4 at a time with BOINC set to use 60% memory when in use and 90% when not. Seeing as they are headless it never thinks they are in use. I have Pi3’s and Pi3B+ all running the stock 1.47 app. Couldn’t get the optimised app to work reliably.
Hey Mark
When I remember to do it yes I reduce GPU memory even on the few with a GUI. I usually run headless. I do not know why but one of my RPi3s started erroring out on all E@H tasks. Didn't feel like dealing with it so switched it to U@H. Guess I should do a reinstall of everything. When the electricity goes off and on and off a few times seems the SD cards often get corrupted. Happened twice this summer, bad storms, and it's been a pain trouble shooting it all and having to get new cards and reinstall. I've got a stack of bad SD cards form it. Only time I ever have a failure.
@robl Canakit sells on Amazon too. I've had good luck with their power source.
robl wrote:
did not realize that cana sold on Amazon. good to know. I also ordered a cooling fan and case from pimironi. fan is quite interesting and the case will accommodate the fan.
The more I read about the Pi4 the more I realize how hot they run when under load. There is a company now that makes a heat sync that covers all but the 40 pins and in an article I read yesterday it did not provide as much cooling as this Pi4 fan: https://shop.pimoroni.com/?q=fan In fact the heat sync in question was not of much value. The fan however ...
The more I read about the Pi4 the more I realize how hot they run when under load. There is a company now that makes a heat sync that covers all but the 40 pins and in an article I read yesterday it did not provide as much cooling as this Pi4 fan: https://shop.pimoroni.com/?q=fan In fact the heat sync in question was not of much value. The fan however ...
Pi 4 case and fan (both from Pimoroni) arrived today. I put it together and booted with Raspbian. I did not load the software to manage the fan so I am sure it ran at "full speed". The Pi 4 was just idling along with a temp of ~46 C. I'll post some pics tomorrow.
poppageek wrote:I run 4
)
What app are you using?
On the RPi2s the app is from
)
On the RPi2s the app is from the project. On RPi3 and RPi3B+ I use the optimized app.
https://einsteinathome.org/content/high-speed-linux-brp-app-raspberry-pi-3
bowguy wrote:I run 4
)
Did you reduce the GPU memory as well? You do that in raspi-config -> Advanced -> GPU memory. The minimum you can set it to is 16. It should give it a little more headroom. Stop BOINC before doing this change.
I also run 4 at a time with BOINC set to use 60% memory when in use and 90% when not. Seeing as they are headless it never thinks they are in use. I have Pi3’s and Pi3B+ all running the stock 1.47 app. Couldn’t get the optimised app to work reliably.
MarksRpiCluster
For those of you looking for
)
For those of you looking for a Pi4 4gig this website has them (www.canakit.com/raspberry-pi/pi-4-kits). I just ordered one.
PorkyPies wrote:poppageek
)
Hey Mark
When I remember to do it yes I reduce GPU memory even on the few with a GUI. I usually run headless. I do not know why but one of my RPi3s started erroring out on all E@H tasks. Didn't feel like dealing with it so switched it to U@H. Guess I should do a reinstall of everything. When the electricity goes off and on and off a few times seems the SD cards often get corrupted. Happened twice this summer, bad storms, and it's been a pain trouble shooting it all and having to get new cards and reinstall. I've got a stack of bad SD cards form it. Only time I ever have a failure.
@robl Canakit sells on Amazon too. I've had good luck with their power source.
poppageek wrote:PorkyPies
)
The more I read about the Pi4
)
The more I read about the Pi4 the more I realize how hot they run when under load. There is a company now that makes a heat sync that covers all but the 40 pins and in an article I read yesterday it did not provide as much cooling as this Pi4 fan: https://shop.pimoroni.com/?q=fan In fact the heat sync in question was not of much value. The fan however ...
robl wrote:The more I read
)
here is a link to the heat sink case that I spoke about: https://shop.pimoroni.com/products/aluminium-heatsink-case-for-raspberry-pi-4
Just added a ComputeModule
)
Just added a ComputeModule 3B+ on my setup. Performance looks like standard pi3B+ as expected
Pi 4 case and fan (both from
)
Pi 4 case and fan (both from Pimoroni) arrived today. I put it together and booted with Raspbian. I did not load the software to manage the fan so I am sure it ran at "full speed". The Pi 4 was just idling along with a temp of ~46 C. I'll post some pics tomorrow.