I have proposal for stratum extension to support algorithm change without reconnects.

First, we need to normalize name of the algorithms; example:


Miner subscribes to server that it is capable of switching algorithms. It also sends parameter list. Each parameter consists of 3 parameters: algorithm name, factor and cost. Factor is speed in MH/s (it is only important to be relative to other provided factors of other algorithms), cost is daily cost of rig in USD.

Example for 2 algorithms:


Server then calculates which is best algorithm for this rig considering provided factors and costs. Before any work is provided and on algorithm switch, server sends (example to switch to x11):

{"id": null, "method": "mining.set_algorithm", "params": ["x11"]}\n

Immediately after that server sends new difficulty and new work.