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Siran d'Vel'nahr Send message Joined: 23 May 99 Posts: 7379 Credit: 44,181,323 RAC: 238 |
The app_config.xml goes in the seti project directory, not BOINC. Hi Keith, The new Linux box I built. In /var/lib... there is /boinc and /boinc-client. The /boinc directory has an arrow on it. Does that mean it is pointing to /var/lib/boinc-client or somewhere else? Both /boinc and /boinc-client contain the same files. Makes no sense in having a directory point to another directory that contains the same stuff. ;) Have a great day! Siran CAPT Siran d'Vel'nahr - L L & P _\\// Winders 11 OS? "What a piece of junk!" - L. Skywalker "Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The new Linux box I built. In /var/lib... there is /boinc and /boinc-client. The /boinc directory has an arrow on it. Does that mean it is pointing to /var/lib/boinc-client or somewhere else? Both /boinc and /boinc-client contain the same files. Makes no sense in having a directory point to another directory that contains the same stuff. ;) Yes it does. Especially so for Linux. Linux uses lots of symbolic links which are sort of aliases pointing a copy of a file to the original. No point in duplicating the file over and over again in multiple directories for some program that needs access to the file. So a symbolic link is created which is just a pointer to the original. Much smaller in size. The "boinc" directory is just the "common name" version for the project without getting into the specifics that the program is actually installed into boinc-client. Just one of the confusing aspects of the distro versions of boinc. Why I like the TBar versions of BOINC. Everything all in one place with me as the owner. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
The new Odroid SBC has a RJ-45 ethernet port. But I don't have any more ethernet ports near it to connect to. I would have to either run a new cable across half the house and two bedrooms to get to a router or switch. Or upgrade the fully occupied 5 port switch 3 inches away from the rpi3 SBC to an 8 port switch which obviously would be the easiest. There is the extra $40 buck in project cost I defined in my OP. The gadget I spoke off replaces a Wifi device by being powered by a USB port and plugging into an RJ47 port. There is no driver(s) needed because it is smarter than your average "dongle" :) It does not need another port off your switch. Just the usual WiFi connection. Yes, you have to set it up because it doesn't talk to your OS at all. Except to send it the equivalent of hardwired communications. Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The gadget I spoke off replaces a Wifi device by being powered by a USB port and Guess I still haven't made you understand. So what good is converting a USB port on the Odroid to a RJ-45 jack if there is no matching available RJ-45 jack on the switch to plug it into? Or do you think that a switch has USB ports to convert to a RJ-45 jack? A switch is just a box with RJ-45 jacks. No other ports or connections. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Bernie Vine Send message Joined: 26 May 99 Posts: 9954 Credit: 103,452,613 RAC: 328 |
The gadget I spoke off replaces a Wifi device by being powered by a USB port and I think you missed the bit where he says it uses Wi-Fi. It makes the RJ-45 port on the odroid think it is plugged into a switch, but the device uses the USB for power and basically makes a standard LAN port into Wi-Fi Something like this I suspect https://www.amazon.co.uk/Generic-Bridge-Convert-RJ45-Ethernet-Wireless/dp/B01HMJ5CFO |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The gadget I spoke off replaces a Wifi device by being powered by a USB port and OK. Now I understand. I just couldn't get the gist of Tom's answer. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
I am sorry I apparently wasn't able to write clearly enough. Its enough to embarrass an aspiring writer :) I have a switch on order so that I can drive more than one system at a time. Like you, I have boxes in the other end of the house that I am not willing to run a cable, even though I think I have free ports. I am getting ready to run some week long tests on some more motherboards and I so I am going to see if I can get by without switching it around. Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I ran a new line from the router to the second north bedroom back when I built the last 3 computers. Using a five port switch. I have to unbury all the telescope equipment (500 lbs) out of the hall closet to get access to the crawlspace access. I pulled a line down through the east north bedroom floor and and back up through the west north bedroom floor. About 3-4 hours of work depending on how many times I flub putting the RJ-45 connectors on the bitter ends. Three times as long a pull to get from the living room switch. I still prefer hardline for permanent installations. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
OK, who is going to try out the Nvidia Jetson Nano SoC computer that is going to sell for $99 bucks at the end of April. Ubuntu 18.04 running aarch64 architecture and there is a Seti app for that architecture I see, The kicker is that is has a Maxwell 128 CUDA core co-processor also. Will it run the special app? Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
OK, who is going to try out the Nvidia Jetson Nano SoC computer that is going to sell for $99 bucks at the end of April. Ubuntu 18.04 running aarch64 architecture and there is a Seti app for that architecture I see, The kicker is that is has a Maxwell 128 CUDA core co-processor also. Will it run the special app? A very good question about the Special Sauce App. I had a GT 710 that crashed and burned when it tried the special app. GPU-Z reports a CUDA# 3.5 even though it has 384 cores (shaders?). But it is "Kepler 2.0" so I think the comparison(s) may not be useful. I am running a Maxwell with 5.0 CUDA. My gtx 750Ti has run the Linxu/CUDA91 without a problem showing a speed up of 100%. (Going from 15 under Win10/SOG to around 7 minutes). If the scaling is linear it sounds like the Jetson Soc gpu should "take" about 35 minutes to run a Linux/Cuda9.1 app. Since the cpus take hours, it would be a significant jump in production. Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I can't find the CC value on the Nano in its specs. Just that the gpu side of it is based on Maxwell. Maxwell has a CC rating of 5.0 so should be able to run the app. If it has enough memory.. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30737 Credit: 53,134,872 RAC: 32 |
Wow, just looked at my Pi's results. Shocking. There are 5 pending validation out of 16 total right now. https://setiathome.berkeley.edu/results.php?hostid=8173315 Uh, my Pi can't be that much faster that those desktops that have GPU's! Seti isn't the only project on the Pi and BOINC isn't the only program running on the Pi! Are there that many boxes that only crunch part time? Are there that many people with caches stuffed to the gills? |
rob smith Send message Joined: 7 Mar 03 Posts: 22262 Credit: 416,307,556 RAC: 380 |
Yup - there can be that many computers that only crunch a matter of hours a day while running the screen saver. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Tom M Send message Joined: 28 Nov 02 Posts: 5124 Credit: 276,046,078 RAC: 462 |
OK, who is going to try out the Nvidia Jetson Nano SoC computer that is going to sell for $99 bucks at the end of April. Ubuntu 18.04 running aarch64 architecture and there is a Seti app for that architecture I see, The kicker is that is has a Maxwell 128 CUDA core co-processor also. Will it run the special app? It looks like they are taking orders. https://www.nvidia.com/en-us/autonomous-machines/embedded-systems/jetson-nano/ Claiming a ship date of 4/19/2019. That is VERY tempting. Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
Well I took a leap of faith and ordered up a Nvidia Jetson Nano Developer Kit when Amazon auto notified me of availability. Won't get it until sometime between May 15 and June 20. Will be interested to see just what it is capable of running. Should be fine with the cpu app I think. Question is what the gpu will be able to run. Took a cursory look at the system image to see what kind of Nvidia drivers it runs. Inconclusive. Will need to actually install it on the hardware to see what is what I think. For $99 I'm game in experimenting. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13765 Credit: 208,696,464 RAC: 304 |
Phoronix look at the Jetson Nano. It's very low powered compared to the other Jetson systems (but they cost 5 times as much & go up from there), but it can leave a Raspberry Pi way behind in certain applications. Grant Darwin NT |
Siran d'Vel'nahr Send message Joined: 23 May 99 Posts: 7379 Credit: 44,181,323 RAC: 238 |
Greetings, I have an intermittent noisy fan on my #1 Pi. Need to look into getting a few replacements. :) Have a great day! :) Siran CAPT Siran d'Vel'nahr - L L & P _\\// Winders 11 OS? "What a piece of junk!" - L. Skywalker "Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The small 40mm fans are notorious for being cheap and use sleeve bearings which fail very fast. You can get good quality 40mm fans if you spend some money for a decent one with a ball bearing or advanced bearing design. Noctua makes a very good 40mm fan. I have it and has been running for years. Noctua quality means it is going to cost more than the typical throwaway 40mm fan. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Siran d'Vel'nahr Send message Joined: 23 May 99 Posts: 7379 Credit: 44,181,323 RAC: 238 |
The small 40mm fans are notorious for being cheap and use sleeve bearings which fail very fast. You can get good quality 40mm fans if you spend some money for a decent one with a ball bearing or advanced bearing design. Noctua makes a very good 40mm fan. I have it and has been running for years. Noctua quality means it is going to cost more than the typical throwaway 40mm fan. Hi Keith, Yeah, those fans that come with those open cases are the cheapest on the planet. I'll look into Noctua. Never bought them before. Guess there's a first time for everything. ;) Have a great day! :) Siran [edit] Wow, so many fans! I can only find 40x10mm 5v Noctua fans with a USB power adapter cable for power. I guess, since there are 4 USB ports on each Pi, I could run them that way instead of on the GPIO connector for power. Might as well put them to some use. ;) $15 bucks a pop, not too bad. [/edit] CAPT Siran d'Vel'nahr - L L & P _\\// Winders 11 OS? "What a piece of junk!" - L. Skywalker "Logic is the cement of our civilization with which we ascend from chaos using reason as our guide." - T'Plana-hath |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
That fan also has the Omnijoin Adapter set which is just some Scotchlocks so you could adapt the existing fan headers that are attached to the GPIO pins to the new Noctua fan and avoid using the USB adapter. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
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