Very slow qtminer when mining on >2 GPUs

sneurlaxsneurlax Member Posts: 17
Hi, I'm having a problem with a new rig I've just set up.

When mining with qtminer, I get decent (expected) hashrates using -t 1 or -t 2, but when using more than this I get CPU-limited (I think; 100% CPU usage, anyways,) the terminal/commandline spits out each results letter-by-letter, and I get 0 hashes/sec

Here are the rig's specs:

AsRock H81 Pro BTC motherboard
Intel Celeron G1840 Dual-Core 2.8 GHz
128GB Intel SSD
2x 2GB GTX 950
2x 2GB GTX 950 OC
1x 4GB GTX 970

qtminer.exe -s $server -u $user.$worker -G -t $t --opencl-platform 0 --opencl-device 0 --cl-local-work 256 --cl-global-work 16384
I've also tried omitting the --opencl-platform/device flags and/or using 1

ALSO, my display driver occasionally crashes...
Any tips? Is the CPU to bottleneck here?


  • un4givenun4given Member Posts: 172 ✭✭
    having same here. i think it is because of DAG file. did you try deleting it? after DAG file has been loaded, the problems are gone. have though no driver crashes (15.12 driver in here)
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