@ -ck
I'm just wondering what metrics are used to calculate the pool's difficulty level set for a given worker, is it purely down to the number of shares returned in a given time?
Also, how is the difficulty set by a miner? Most of my rigs run CGMiner which has a suggested difficulty parameter '--suggested-diff xxx' that allow me to set the difficulty I want.
However, I've recently added a BitAxe Gamma and there appears to be no method for requesting a particular difficulty so it falls back to whatever the pool decides, is there an additional parameter that can be set for example in the password field like -d = 10000?
Thanks
G.
Cgminer was the only mining software that implemented the stratum command for suggesting diff. Bitaxe and others use different mining software these days, without any support for suggesting diff. The pool chooses based on submission rate to maintain 18 shares per minute. Suggesting diff is by and large a waste of time since the pool will find the optimal value for your mining hardware over enough time, unless you want to set it higher than strictly needed (there's no logical reason for this apart from a very tiny drop in internet bandwidth.)
The pool will ignore you setting too low a diff as this potentially acts as a DoS on the pool.