hi,badman74,thanks for your work.
on my 1g memory (or above) 5xxx and 6xxx cards ,the bitblockold algorithm works fine,but 512m cards can't run,it says not enough graphic memorys.
I tried to decrease TC or increase LG,can't work neither.
seems that parameter "--thread-concurrency" and "--lookup-gap" don't play a part in new version sgminer no longer?
Is there any other new sgminer builds that can let that parameter "--thread-concurrency" works again to decrease the memory occupancy in order to let my 512m cards run the x15 algo?