ataa
commented
3 years ago Someone ran MadMax on a 192 cores/384 threads with success and posted the results on Youtube (~1 minute per plot). So I don't think the issue here is related to the plotter. There are some reports on slow plotting on Windows Server (#378, ... ). My 6 core, 10 years old cpu with pcie 2.0 nvme and 16GB ram can make a plot in 55 minutes using Mad Max on Ubuntu 21.04 (7 Hours using official plotter). So try Ubuntu if you can. You can install it on USB flash drive without touching your Windows OS disk.
SebMoore
jackgump
mcsham
gryan315
mo-shangren
I'm using AMD EPYC 7H12 64-Core 2.60Ghz, Here are some results with different thread settings for a single plot to finish:
System is Windows Server 2019, Ram is 1TB, first hard drives is latest Intel NVME enterprise 3.84TB, second drive is set with 120GB RAM disk. (four exact same systems)
-r 4, takes 3 hours, CPU usage is about 2% -r 6, takes 2 hours, CPU usage is about 3% -r 8, takes 1.5 hours, CPU usage is about 3% -r 10, takes 1.2 hours, CPU usage is about 4% -r 12, takes 1.5 hours, CPU usage is about 5% -r 32, takes 6-7 hours, CPU usage is about 30%, system becomes very slow on everything, include access any RAM or NVME drives even without any read or write. -r 64, takes more than 12 hours, CPU usage is about 40%, system becomes very slow on everything, include access any RAM or NVME drives even without any read or write.
with -r 10, I run another instance of the plotter, the system becomes immediately very slow, even the CPU usage is less than 6%.
It seems the plotter is not compatible with such high end CPU, or the plotter has some serious flaws, so sadly surprising. With official Chia plotter, I can mange to plot around 64 plots per day with 6 NVME drives with this CPU. Anybody have this kind of experience? any help would be greatly appreciated.