@doktor83 I'm pretty sure that you are aware of all these occasions, I mean with the hashdrop.
Cards with 4gb memory dont have this issue, at least to me. They reach maximum hashspeed immediately.
The problem is with the 8gb cards.
Whenever I start your miner one of them, sometimes more, can go up to maximum, others no and they stay low all the time
even after 2,3,4 hours of mining.
Next time I'm starting your miner some other cards or card do the opposite thing. It's a random situation.
To help things out, you of course the developer of a great miner to me, I found out that running GPU-Z at the time your miner runs
and passing throu all cards one by one and then exiting, voula all cards running full speed. Problem solved.
But of course this is not a solution!!!
Maybe something with the interrupts?
I'm trying to help!
On my Vega 56 on 18.3.4 drivers (HCC disabled), I run cast_xmr with the maxmem option and then when the hash rate gets a little higher than 1325, I quit and switch to SRB miner (56 intensity, 8 worksize) and then I get the 1450-1500 hashes
Some people have reported that if you do this with 60 intensity and then drop it back down to 56, you get the full hashrate but I haven't gotten it to work
When I had blockchain drivers, I couldn't get this to work reliably but I did succeed a few times by enabling HCC memory
in my case, i launch the miner with 60 intenisty, i kill the process and i relaunch it with 56 to have 1500 hs per vega56