@doktor83 kudos for being one the first devs to add experimental support for big navi.
No luck on cn_gpu for 6900xt, gpu is hashing but not getting any accepted shares on pool. Thoughts?
Can mine cn_xhv with accepted shares, strange behavior, hashrate will oscillate b/t 2100-2600 until settling around 2400.
Tried varying intensities, gpu seemed to prefer using dual threads, but similar results with respect to oscillating for first minute or two after startup.
Yes i have actually, now that you mentioned cn_gpu, because i just remembered i didnt compile it the way i should have
Going to be fixed in next release.
I dont have a 6900xt so i couldn't test, but looking at the specs i think you could try running 3 or maybe even 4 threads.
--gpu-intensity 896+896+896
For settling the oscilations you could try the new-old thread delay parameter i added,
--gpu-extra-config (check details in Help\Gpu_Tweaking_And_Boost.txt)
Can you test it on ETHASH, im curious about the results ?
@doktor83, did test on ethash and performance is in line with other top miners, ~64.1 MH/s. About the oscillations, I was already using your new parameter which did help boost the hashrate to the 2400. It's tough to know what delay is proper, seems the gpu eventually settles on most appropriate workload distribution due to the oscillating going away after a minute or two. Will be interested to see how SRB performs on cn_gpu after updated compilation, XMR_Stak gets around 5k h/s.
