on my 1g memory (or above) 5xxx and 6xxx cards ,the bitblockold algorithm works fine,but 512m cards can't run,says not enough memory.
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 Bitblockold algorithm.
Is there any other ways that can  decrease the memory occupancy in order to let my 512m cards run the x15 algo？