Recent content by pututu

  1. pututu

    Distributed Computing on Raspberry Pi

    Keep in mind that for ryzen 3000 to achieve high efficiency, one would need to under-clock and under-volt the CPU. There is a good article here which I use to optimize my 3950x. Scroll down to the section under "Performance per watt". Most folks run at stock or overclock, so won't see that...
  2. pututu

    Distributed Computing on Raspberry Pi

    Endgame, from what I read here, I think a node size shrink in the future down to 7nm (comparable to current ryzen 3000) will likely increase the PPD/watt.
  3. pututu

    Hit a WCG (World Community Grid) milestone? Post it here:

    Just reached 60M credit (boinc) milestone 😁
  4. pututu

    1 Million point challenge

    Minecraft makes it #39 for me.
  5. pututu

    Distributed Computing on Raspberry Pi

    Seems ok but never own one. The manual says accuracy standard class 1.0 meaning error can go up to 2% which is comparable to kill-a-watt.
  6. pututu

    Distributed Computing on Raspberry Pi

    Go and get one! ;)
  7. pututu

    Hit a WCG (World Community Grid) milestone? Post it here:

    woot 10 year diamond for OP
  8. pututu

    Distributed Computing on Raspberry Pi

    For less than 100W, it will show one decimal place, eg 14.3W. Above 100W, it is in whole watts. I can't recall if it can show two decimal places for the power when reading below 10W.
  9. pututu

    Distributed Computing on Raspberry Pi

    I have 4460 model which has typical 0.5% power accuracy according to the manual: http://www.p3international.com/manuals/p4460_manual.pdf Worst case 2% accuracy. It doesn't read mA.
  10. pututu

    Distributed Computing on Raspberry Pi

    I've three kill-a-watt and all are used for DCing. Since most of my rigs are headless and I'm running a single project most of the time on each PC, the kill-a-watt can tell me if something is wrong with the PC (e.g. PC unresponsive) or the project (e.g. out of work). Just fyi. Personally, it is...
  11. pututu

    SOLD: Gigabyte AMD Radeon HD 7970 (GV-R797OC-3GD) 3GB GDDR5

    1st of Jul bump. This card is looking for a new home.
  12. pututu

    Distributed Computing on Raspberry Pi

    If you can somehow measure the current and voltage to the Pi, you should be able to figure out the power for one Pi system. I have also read EPYC rome build that is also very power efficient (probably better than the threadripper) but can't find any normalized PPD/watt number for OP project.
  13. pututu

    Distributed Computing on Raspberry Pi

    I'm curious what's the crunching efficiency of pi when compare to 3950x when running WCG OP tasks. Normally the crunching efficiency is quoted in PPD/watt (PPD = points per day. I'm using BOINC credit system in the calculation below. For WCG credits, multiply by 7) My 3950x currently gives...
  14. pututu

    SOLD: Gigabyte AMD Radeon HD 7970 (GV-R797OC-3GD) 3GB GDDR5

    Add another GPU card for sale. This time Gigabyte HD 7970.
  15. pututu

    Utterly EPYC Workstation

    With all the CPU horsepower, you can try to volunteer (it's up to you) helping out COVID-19 research when your system is idle, for example ;) BTW, what's the power off the wall at stock running cinebench20?
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