GPU is just parallelization of the process. This is clear. When I was doing tests, something else was interesting. A specific machine, a specific key in the range. (specific task) Load in 1 thread, core. Only the time spent on execution was taken as a basis.

As far as I understand, for both low and high, the code that implements the key search most quickly on specific equipment is suitable everywhere. Earlier, when I was in the subject and tested the fastest codes for searching were from the author of JLP, due to a long absence, I can not say exactly what the situation is today, with programs that are freely available.

Gratitude albert0bsd

(I am also lazy and I made the fastest (for now) implementation of bsgs for gpu. The difference between us and him is that we let people use our developments and sources, but he does not. If everyone sits in their own world and does not share knowledge, then there will be no progress. And this applies not only to him, but to others as well.)

By and large, we all agree with this. But we need to understand that this is a sport and a competition. Especially since the issue concerns big money. Send a link to your product for testing. Thank you.

( If RetiredCoder = Lazy Genius, then A != Amateur.
    If he has a UFO-shaped quantum computer, then P != Human.
    If Bitcoin puzzles are solved faster than ever, then S = Secret Alien Collaboration.) 

Judging by the dynamics of the latest discoveries. I dare to assume that people who have access to huge computing power are working. Plus, perhaps good software, unknown to us. Perhaps these are miners. I also assume that RetiredCoder is a group of people with common interests.

 "This person is the creator, he creates insecurity in the system and wants only professional people to solve all wallets and real solvers to remain."  I think it is impossible. In fact, the creator of this puzzle did not do it to play with us. I think that this is how the security of the algorithm is tested.

Hello everyone, please give me more links to topics with this puzzle.