Switching of algorithms

[sedver]

How to execute switching of algorithms and change of parameters (tdp, memory clock, core clock)?

[t4nja]

You can change device settings (tdp, memory clock, core clock) with device.set.tdp, device.set.core_delta and device.set.memory_delta methods. To switch active algorithm you have to free current algorithm, free all workers, add new algorithm and assign new workers to it (you can use state.set method as well, here is an example of switching from equihash to lyra2rev2).

[igorvoltaic]

@dropky Could you give an example of state.set used for dual mining? thanks in advance. just using uuid twice is sufficient?

[t4nja]

@igorvoltaic here is an example, all you have to do is pass dual mining algorithm (daggerhashimoto_decred, daggerhashimoto_sia, daggerhashimoto_pascal) as algorithm parameter.

[
   {"time": 0,"commands": [
         {
            "id": 1,
            "method": "state.set",
            "params": {
               "btc_address": "34HKWdzLxWBduUfJE9JxaFhoXnfC6gmePG.test",
               "stratum_url": "nhmp.usa.nicehash.com:3200",
               "devices": [
                  {
                     "device_uuid": "GPU-370210bb-3c94-d3ba-ee6c-5ea6d510cb69",
                     "algorithm": "daggerhashimoto_decred",
                     "params": []
                  }
               ]
            }
         }
      ]
   }
]

just using uuid twice is sufficient?

No. If you'll add two states for the same uuid/device, excavator will ignore the second one and only acknowledge the first.

[igorvoltaic]

thanks! wonder why i didn't check algos page myself first :)

One more question then. Does it resubscribe every time i make a switch after i pass "stratum_url": "nhmp.usa.nicehash.com:3200",? or this option is just ignored after i connect for the first time?

[t4nja]

No, it doesn't resubscribe every time. Subscribe is ignored if you pass the same parameters for stratum_url and btc_address as you already did (parameters excavator is currently connected to). If you change either the btc address or stratum url then excavator will resubscribe.

[t4nja]

FYI. You have to pass those parameters at every state.set call. If stratum url or btc address is empty, exacavator will disconnect from the stratum. As the name of the method says, you literally tell excavator what its state should be, excavator will then change the algorithms and subscription only if needed (the method is optimised so it doesn't change the things that are already as you want them to be).

[igorvoltaic]

thank you for the replies, everything is pretty clear now )