Argument options for tuning performance and efficiency: --oc1 and --oc2

miniZ includes a command line argument for improving performance at distinct overclock (OC) values.

When you’re adjusting your power limit (PL) and OC setting values, you can use --oc1 or --oc2 to tune the performance for your GPU. The following table (Table 1.) shows oc1 and oc2 support for each combination of GPU and algorithm. –oc0 is default mining mode that each GPU has.

* NOTE: Adding --oc1/2 to the command line does not apply OCs to the GPU, it just makes the GPU run with different kernel functions. When you adjust the OCs in Afterburner (or other program) and run miniZ without --oc1/2 the miner will run with the default kernels (usually optimized for stock settings). The --oc command line option just change the way miniZ runs not the OC settings of the GPU. *

 

Usually, at lower PL/OC values --oc1 produces better performance. When you push your GPU to higher PL/OCvalues, --oc2 is likely to be produce higher hashrate. It all depends on your OC settings.

Try both and check which performs best for your settings and GPUs. For stock settings it should not be necessary to use this option.

When you add --oc1 or --oc2 to your command line this setting is applied to all GPUs. You can also apply the setting to a specific GPU.

Examples for a rig with 6 GPUs, mining Zel on equipool:

1. To apply --oc1 to all GPUs
miniZ.exe --url YourWallet.Worker@mine-zel-euro.equipool.1ds.us:50053 --log --oc1

2. To apply --oc1 only to GPU#2 and GPU#3
miniZ.exe --url YourWallet.Worker@mine-zel-euro.equipool.1ds.us:50053 --log --oc1=2,3

3. To apply --oc2 to all GPUs except for GPU#1 and GPU#4. Note that order matters (try it out!).
miniZ.exe --url YourWallet.Worker@mine-zel-euro.equipool.1ds.us:50053 --log --oc2 --oc0=1,4

4. To apply --oc1 to most GPUs, --oc2 to GPU#0, and default mode to GPU#3 and GPU#4.
miniZ.exe --url YourWallet.Worker@mine-zel-euro.equipool.1ds.us:50053 --log --oc1 --oc2=0 --oc0=3,4

For other command line arguments check Usage page.

Happy mining!