in short (cudaminer config for UTC):
cudaminer.exe --algo=scrypt-jane:UTC -L 3 -l t23x1 -o stratum+tcp://yacoin.club:3443 -O YourUserName.WorkerName:WorkerPassword
1. You can maximize CUDA kernel efficiency with autotuning the kernel launch configuration.
cudaminer.exe -D --algo=scrypt-jane:UTC -L 4 -l auto -o stratum+tcp://yacoin.club:3443 -O YourUserName.WorkerName:WorkerPassword
then after autotune has completed use detected config
for example, for GTX 970M tuned config is t21x2
[2015-10-28 14:31:02] GPU #0: 312.56 hash/s with configuration t21x2
[2015-10-28 14:31:02] GPU #0: using launch configuration t21x2
[2015-10-28 14:31:03] GPU #0: GeForce GTX 970M, 0.31 khash/s
With every step (lookup-gap++) run autotune to find new optimal config.
for example
cudaminer.exe -D --algo=scrypt-jane:UTC -L 5 -l auto -o stratum+tcp://yacoin.club:3443 -O YourUserName.WorkerName:WorkerPassword