no i do not use reboot.bat i use default wd I mean just restart miner when gpu hang and this not hapened when gpu hang

do you have a reboot.bat/reboot.sh with shutdown called inside ?

if yes, there is a problem. often when GPU hang because of overclocking and heat, there are many memory errors in kernel logs, and the linux kernel end with a panic on unstoppable processor thread. I use a hardware watchdog

hello,

i have probleme with claymore miner

the miner do not restart when gpu hang, i need to reboot all the rig to start miner correctly

the claymore miner stop mining, and the wd is activated and can i know witch gpu hang, and the miner try to restart but hang and not continue,

befor i do not have this probleme, when gpu hang the miner restart correctly and keep mining with any probleme

All your help are welcome

Thanks

It dropped 2% because it's acessing a second memory module, right? So, from 2 to 4GB we shouldn't see a difference in the hashrate, correct?

so it begins

What brand & settings are you using on the 380?  I have a few of those in one of my rigs and I've never gotten numbers like that out of them.  

Claymore,
do you have any ideas how to overcome Polaris hashrate drop for epoch >129 ?

Genoil said that DAG now took 100% of first memory bank (2gb) and go to second memory bank, so access two banks instead of one leads significant hashrate drop.

Do you make any research in this direction, or it is hopeless? What you think, any comments?

This is most likely a hardware related issue caused by the DAG being over 2GB now. This causes something like the DAG now being spread over multiple banks of memory, slowing down access. The bigger the DAG gets, the more often the memory controller has to switch banks, the slower it responds. In reality it probably is a little bit different/nuanced, but I guess it comes down to the same thing. The most important question is; how much are the 290/390's affected? Because when they have it too, the majority is in the same sinking ship, so it's not that big of a deal. Good news for Pascal owners though, they should be fine as a similar issue was fixed when that hit the market last year.

You are absolutely wrong.
Hashrate is dropping heavily for polaris cards 0.1-0.2 mhs every new epoch. This is stared 2 epochs ago. With epoch 199 you'll get only 17mhs with rx480. Just use --benchmark 199 option of claymore miner.

can you explaine this please ??

is tha for the size of DAG increase and what solution can we do ??

I just wrote the reason two posts above...