Nostr Web Client

Jack K 1y ago

Bitcoiners/miners/coders I need help with running an experiment. I’m not good in Terminal.

I am going to run a test on an S19j pro. I need to have it run numerous cycles hashing SHA-256 at a difficulty of 1.

I need to track to the highest degree of accuracy:

-Joules per nonce

-number of hashes per nonce

-real operating efficiency

-Miner temperature

-ambient temperature

-total nonces

-total time between nonces

What is the best way to write a program to do this with the firmware on the miner? How can I get it to run a custom program hashing SHA-256 at D=1 (2^32 search space)

I need to build a large enough dataset. To offset the variability in the time to find a nonce. This is very very important, any help is greatly appreciated.

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Discussion

Jack K 1y ago

Do I need to measure energy usage externally via a meter? How accurate is the built in thermometer? Do I need to measure temperature externally?

Erik 1y ago

Most of those can be computed by hand, without running it.

The main problem here is that, using diff 1 blocks, communication with the stratum server will probably dominate the process. You'll see way lower stats than it should be. IIRC, those bitmain machines will give you a pretty accurate number, I would use it.

Connect to some pool (can be your own pool running e.g. ckpool), wait for it to auto-tune and record the numbers it spits out.

About the on-board sensors, I haven't looked at the new UI, but in principle, all asics can report back their temps. Its's a OK sensor built into the chip, so I don't think you can get more accurate than that. cgminer used to log temp for chips, you can try reading those....

Jack K 1y ago

What do you mean they can be computed by hand? You perked my interest. I need this data specifically for redefining Boltzmanns constant (Entropy constant).

I don’t want to mine any blocks or communicate with bitcoin at all. I just want to hash SHA-256 at D=1 for the data. I need to know how much joules it takes to hash 2^32 and I need to know the entropy created (heat loss by miner).