Since the source code is not yet opened, here is a brief description of the mining algorithm of the Luck project.
Mining parameters:
alpha -> The mining difficulty parameter of the first phase, that is, hash(first header, first nonce) <alpha
luck -> After the first phase is completed, luck = f(header, first nonce)
basis -> Difficulty base of the second phase of mining.
beta -> The mining difficulty parameter of the second phase, that is, hash(second header, second nonce) <beta, where beta = basis * (maxluck / (maxluck-luck)) ^ 2.
The algorithm of the mining process as:
1. alpha, basis = pre_compute (difficulty adjustment strategy, the current block generation is too fast, reduce alpha and basis; the current block generation is too slow, increase alpha and basis. When the difficulty of the first phase is too large, reduce the basis; when the second phase is too difficult, increase the basis)
2. Find a suitable firstNonce such that hash(first header, firstNonce) <alpha
3. Calculate the luck value by luck = f(header, firstNonce)
4. Calculate the difficulty parameter of the second phase beta = basis * (maxluck / (maxluck-luck)) ^ 2
5. Find a suitable secondNonce such that hash(second header, secondNonce) <beta.
6. Pack the parameters into the block to complete the mining
From the above process, it can be seen that as the luck value increases in the second phase, the difficulty of mining in the second phase will decrease sharply. For example, when multiple nodes cooperate in mining, the luck value is more likely to be a medium luck value; when they do not cooperate, the luck value of the highest luck value will be significantly greater than the middle luck value during cooperation, so the difficulty of the node with the highest luck value in the second phase will be drastically reduced.
Another note: Since each mining process is divided into two phases and and cannot be executed in parallel, there is no way to start multi-threaded mining in one mining program. For multi-core machines, you can increase the CPU utilization by enabling multiple mining programs.
