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Anyone still using a raspberry pi 3
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Author | Message |
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BetelgeuseFive Send message Joined: 6 Jul 99 Posts: 158 Credit: 17,117,787 RAC: 19 |
Speaking of Rpi's IIRC somewhere someone said the the version of BOINC on the Jessie Distro had some issue with one of the projects and it not doing work. If someone remembers can they let us know. I recently upgraded my 3 systems (2 * Model 2B and 1 * Model 3B) from Jessie to Stretch and added another Model 3B. All 4 systems are running Stretch without issues. Hope new work is coming soon ... Tom |
Williamgcastro Send message Joined: 24 Oct 08 Posts: 8 Credit: 10,306,570 RAC: 3 |
Hello Chris I'm using an open "case" that I got off amazon. It's really just two pieces of acrylic with four brass standoffs and the PI board held in between. The fan is located right above the processor and I have a heat sink installed. Running seti on all four cores my CPU temp, as reported by the system, is usually around 59C. As someone else replied, when I said "headless" I meant without keyboard or monitor attached. Regards William |
David Gale Send message Joined: 24 Sep 17 Posts: 1 Credit: 65,104 RAC: 0 |
Using 5 Raspberry Pi 3s crunching SETI@Home 100% CPU time. I have them in a 3D printed rack and laid on their side with a big 24V fan pushing hair through each slot in the rack and keeping the CPU packet temperature at a nice chilly 38 degrees Celcius. Pictures? :) |
MarkJ Send message Joined: 17 Feb 08 Posts: 1139 Credit: 80,854,192 RAC: 5 |
Pictures? :) Well I don’t know about him but I designed a 3D printed case to hold four side by side with active cooling. I am calling it the Pi ^4 (Pi to the Power of Four) case. I have done another version but am waiting on some parts before I can splash it all over the internet :-) Pics of the prototype can be found here. BOINC blog |
Miroslav KUBIK Send message Joined: 22 Jul 06 Posts: 2 Credit: 1,106,405 RAC: 0 |
I recently upgraded my setup with RPi 3 B+ I made a small "cluster" consisting of 5 PIs: 1x RPi 3B 4x RPi 3 The main node is RPi 3B+ serving also as a file system server for rest of the nodes, so all client nodes are without SD card and boot with PXE over network. photo: https://imgur.com/a/Qq6sz |
MarkJ Send message Joined: 17 Feb 08 Posts: 1139 Credit: 80,854,192 RAC: 5 |
For those that don't know the Raspberry Pi Foundation released the Pi 3 model B+ on the 14th of March. Its a bit faster (1.4GHz instead of 1.2GHz) and has better networking than the 3B (330 Mbit/sec plus dual-band WiFi). It also supports power over ethernet (PoE) by way of a PoE HAT module. Memory is still the same 1GB of DDR2. BOINC blog |
Kissagogo27 Send message Joined: 6 Nov 99 Posts: 715 Credit: 8,032,827 RAC: 62 |
some benchmark about this new one https://medium.com/@ghalfacree/benchmarking-the-raspberry-pi-3-b-plus-44122cf3d806 |
MarkJ Send message Joined: 17 Feb 08 Posts: 1139 Credit: 80,854,192 RAC: 5 |
Here are the BOINC benchmark results from a 3B and the 3B+ Rpi 3B Number of CPUs: 4 975 floating point MIPS (Whetstone) per CPU 15364 integer MIPS (Dhrystone) per CPU Rpi 3B+ Number of CPUs: 4 1123 floating point MIPS (Whetstone) per CPU 17834 integer MIPS (Dhrystone) per CPU Over on Einstein I am seeing run times of approx 42,000 seconds for the 3B and 37,000 for the 3B+ BOINC blog |
Chris904395093209d Send message Joined: 1 Jan 01 Posts: 112 Credit: 29,923,129 RAC: 6 |
MarkJ - Thanks for the benchmark stats. Miroslav KUBIK - Nice cluster. With POE, it is nice and clean. ~Chris |
doublechaz Send message Joined: 17 Nov 00 Posts: 90 Credit: 76,455,865 RAC: 735 |
I'm running a cluster of 25 3Bs. They seem to run in the 550 to 600 RAC. |
Chris904395093209d Send message Joined: 1 Jan 01 Posts: 112 Credit: 29,923,129 RAC: 6 |
Is it possible to have 1 raspberry pi hand out work units to the other raspberry pi's in a cluster? And have 1 computer account be the go-between of all of them in the cluster and SETI? So that the cluster would look like 1 PC to SETI? ~Chris |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
Is it possible to have 1 raspberry pi hand out work units to the other raspberry pi's in a cluster? And have 1 computer account be the go-between of all of them in the cluster and SETI? So that the cluster would look like 1 PC to SETI? It is possible, but you will need to write the software to do it. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
The Glowing Blob Send message Joined: 9 Oct 01 Posts: 4 Credit: 2,177,977 RAC: 6 |
I’ve started running four Raspberry Pi 3 B+’s in the past few weeks. Don’t worry about me jumping to the top of the stats anytime so but it’s nice to know they’re doing something useful while I’m dreaming up things to do with them. Each Pi is running pretty much the same projects and I started having some heating problems. All units now have heat sinks on the CPU, LAN, and RAM chips. One is in the path of an HVAC vent, two have single fans in the cases, and the one that’s still hot just has the sinks, no fans, no blower. All are at 100% CPUs using 60% of each one’s time. The hot one is throttling at about 75 °C. As time allows, I’ll try to find just how hard I can push them. Probably will move the hot one to a cooler place in the house or maybe replace the case with one with a fan. I had bought a dual fan gizmo that was supposed to fit a 3 B+ but it doesn’t. Won’t quite clear the PoE connectors on top left and the edge of the camera connector on the center right. |
HAL Send message Joined: 18 May 99 Posts: 535 Credit: 8,246,955 RAC: 3 |
Yep, I'm using two Pi 3 Model B+ at the moment and will have four running pretty soon. I'm putting together a little stack you can see the progress here - https://setiathome.berkeley.edu/forum_thread.php?id=82884 They take from ~6 to ~ 16 hours depending on what kind of WU they get (Astropulse takes a long time), but of course they have 4 cores too, so each puts out a good workload. I think they do fine. They are racking up progress sitting there running 24/7, hey what more can you ask of a little computer. :-) Here's the progress on the stack as of yesterday, two more to go - I'm putting myself to the fullest possible use, which is all, I think, that any conscious entity can ever hope to do. |
rob smith Send message Joined: 7 Mar 03 Posts: 22190 Credit: 416,307,556 RAC: 380 |
That's a nice tidy setup you've got there. I assume that airflow is across the boards, and, if needed you could put a fan on one face to force it? Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13731 Credit: 208,696,464 RAC: 304 |
That's a nice tidy setup you've got there. I was thinking the same thing. Looking at the orientation of the heatsinks, put the stack of Pis in a rack or box with a large slow moving fan to blow air from the back to front (or reverse) too keep all of the units in the stack cool with the one large fan. No need for individual, high speed small fans. Grant Darwin NT |
HAL Send message Joined: 18 May 99 Posts: 535 Credit: 8,246,955 RAC: 3 |
That's a nice tidy setup you've got there. Thank you. I assume that airflow is across the boards, and, if needed you could put a fan on one face to force it? Each section has it's own little 5V fan mounted above the processor blowing down onto the proc., so each Pi has independent cooling. You can see the fan on the top unit. Cool air can easily be drawn in from all sides of the smaller space between each major Pi assembly. Today I mounted another Pi on top so now there are three. Tomorrow all four will be mounted, but only the top two will be running because I only have power supplies for two at the moment. I will take care of that by wiring up a custom set of cables all going to a master PS. However, the Pi running at the top at the moment (utilizing 4 cores for this project), which is Pi-2 if you look at my computer list, is in a room at 27 C and the temp report for the proc. is 53.7 C, so I am satisfied with the cooling that the tiny fans are providing, at the moment. However; if needed, more air could be introduced by another larger external fan blowing on the whole setup. I'm putting myself to the fullest possible use, which is all, I think, that any conscious entity can ever hope to do. |
HAL Send message Joined: 18 May 99 Posts: 535 Credit: 8,246,955 RAC: 3 |
Here is the final product w/custom built power cables going to that PS you see beside them. Four Raspberry Pis and 4.5 Amps of pure processing power! They all have Seti@home project credit now and make their own good progress. The only thing I have to add are some reset switches but that's just for convenience. I'm putting myself to the fullest possible use, which is all, I think, that any conscious entity can ever hope to do. |
Chris904395093209d Send message Joined: 1 Jan 01 Posts: 112 Credit: 29,923,129 RAC: 6 |
Nice setup. ~Chris |
HAL Send message Joined: 18 May 99 Posts: 535 Credit: 8,246,955 RAC: 3 |
Nice setup. Thanks. Since starting this project a couple of weeks ago, the first Pi has over 10k credit now, the other three are coming along behind. Along with my other computing platforms, my goal is to get to a million credits total for my effort before the end of the year. According to my calculations, it should happen with what I have going now. P.S. But I might get a wild hair and upgrade another PC to a Ryzen 7 1700 like I already have, which will assure my goal will be easily reached :-) I'm putting myself to the fullest possible use, which is all, I think, that any conscious entity can ever hope to do. |
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