what exactly does the -g flag do? I can't seem to find it in the --help
again with your settings my display driver crashes, but if i set it to g1 then it goes just fine but only at about 550khash
with my settings g1/g2 didn't seem to make any difference (edit) before it didn't that is ... now with the 13.8 driver g1 crashes my setings, but g2 works
so for now with 13.8- your settings g1 works g2 crashes, my settings g1 crashes g2 works
The -g setting is how many gpu threads to start, if you have only 1 gpu then -g1 with a TC of 64 * bit-width (or slightly less for me) or -g 2 with TC of (64 * bit-wdith) / 2 should be used, if you have a 7990 then -g 2 would be best, there is probably better settings but if i got a 7990 i would first try -g 2 and --thread-concurrency 16384 (i think the bit-width of 7990 is 256, i could be wrong though).