The excellent FGRL rating list (http://www.fastgm.de/index.html) contains two Top 10 rating lists for 10' + 6'' and 60' + 15'' TC with identical engines on one core. We can make direct comparisons of engine performances.
Elo is not an adequate parametrization of the scaling. Rating at longer time controls is subjected to Elo compression, due to increasing draw rate. So, a weaker engine might appear to approach Elo-wise a stronger one (relatively gain strength), but this might be just due to the increasing number of draws, without affecting the relative strength. More related to relative strength is Win/Loss rate for every engine in the list. Here I post the rating list of scaling of engines in Win/Loss ratios from Blitz TC to Long TC. Also log10 list for ratings to be additive.
So using this measure, Andscacs scales best with longer time and Fritz the worst.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
Dann Corbit wrote:So using this measure, Andscacs scales best with longer time and Fritz the worst.
Yes.
You can bet I tried very hard to obtain this
I guess that all the efforts to obtain this are via pruning, since it has to do with all experiments running a single thread (so it has nothing to do with SMP).
I think that this is the right direction for a giant win (next big revolution like null move and LMR were in their day).
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
Dann Corbit wrote:So using this measure, Andscacs scales best with longer time and Fritz the worst.
Yes.
You can bet I tried very hard to obtain this
I guess that all the efforts to obtain this are via pruning, since it has to do with all experiments running a single thread (so it has nothing to do with SMP).
I think that this is the right direction for a giant win (next big revolution like null move and LMR were in their day).
I don't signal a concrete cause. I try that every patch I accept scales well, or at least is neutral. So its an accumulated effect. Anyway even if this comes for long ago, I'm never sure if the next patch I will do will kill a part of the achievements, as of course I cannot test at very long time control.
Thank you very much, I will compute tomorrow morning the relative ratios from Bullet to Long Time Control.
It would be great to calculate the same kind of scaling based on number of cores/threads. Of course more cores help you search deeper, just as longer time does, so that would have to be taken into account.
