Re: Large Bitcoin Collider (Collision Finders Pool)

Quote from: scooterking on October 09, 2016, 04:59:54 AM

So what's up with this latest build ? I was getting a benchmark of 2.5 with 2 cores, went up to 16 cores and my benchmark went DOWN to 2.49 ??

Lower numbers are better?
Although 2.5 -> 2.49 is probably a measurement tolerance.
The benchmark is 1 mio keys per I will add a translation to keys/s.
If you get a factor of 2.5 it means you're doing like 400000 keys/s per core.
2.49 -> 401606 Wink

edit: Also please be aware, that hyperthreaded cores yield only about 30% of the performance of physical cores.
So let's say you have a 8-core CPU with hyperthreading enabled (16 logical cores) and benchmark shows 2.5

That means you can do about 3.2 mio keys/s with LBC -c 8, but only about 4.16 mio keys/s with LBC -c 16
Modern CPUs may perform a little better.

Personally, I leave the hyperthreaded cores alone, so while my CPU has 4 physical and 8 logical cores, I drive LBC with -c 4
The hyperthreaded cores are left for the OS and are more than enough (for me) to do my programming, browsing, even compiling.

Rico