Latest posts of: tcj2001

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on: January 26, 2023, 05:14:37 PM

I was just seeing what USB hub would be best for Compac F miner if I need to overclock it to the max feasible. Currenlty I ordered https://bitcoinmerch.com/products/gekkoscience-8-port-usb-hub-2-0

on: January 26, 2023, 03:07:23 PM

Does any one know of USB datahub that can provide 5A (25W) per usb port?

on: January 23, 2023, 05:49:10 PM

New question: Number of chip in miner vs total hash power. In R909 there are 6 BM1397 chips, so does each chip individually participate in calculating the best share at the same time or the total hash power is used everytime to do the calculation.

on: January 23, 2023, 05:04:37 PM

Quote from: os2sam on January 23, 2023, 04:37:00 PM Quote from: tcj2001 on January 23, 2023, 03:30:42 PM What i observed is if I set difficulty too high then no of accepted shares per minute is less compared to the low difficulty setting. So I guess higher the accepted shares per minute mean more chances of calculating/generating best share. Setting your share difficulty has no bearing on your chances of finding a block or generating a better best share. It's simply a filter used to keep from swamping a pool with diff 1 shares. Using a higher share difficulty only filters out low diff shares to decrease the amount of pool resources needed to evaluate your shares and decreases the network bandwidth required to submit shares. In your example of suggest-diff of 500, shares below a diff of 500 are not submitted and shares 500 and above are submitted. Your share submission of 9.94 shares per minute just means your hashrate estimate by the pool will have more variance than the pools adjusting to 18 shares per minute. If you remove the suggest-diff then ck solo will adjust for 18 share per minute which would be a difficulty of around 276. Thanks making sense now. How did you calculate diff of 500 equate to 9.94 shares per minute?

on: January 23, 2023, 03:30:42 PM

Quote from: os2sam on January 23, 2023, 02:22:26 PM Quote from: tcj2001 on January 23, 2023, 03:34:37 AM Pardon my ignorance, I have attached the screen shots of cgminer for both of these units Compac-f https://imgur.com/Da9dfnc I believe the WU tells the diff1 and these are very high compared to 18. Are you expecting the suggest-diff command to have an effect on the Worker Utility? In your screen shot it looks like your suggest-diff of 500 is being honored. So that equates to 9.94 shares per minute being submitted to the pool. What i observed is if I set difficulty too high then no of accepted shares per minute is less compared to the low difficulty setting. So I guess higher the accepted shares per minute mean more chances of calculating/generating best share. So now I have set difficulty to 1 on both units so that the pool adjust the difficulty to whatever is feasible for the pool, that way I maximize my chances of calculation done per minute by each units. I may be totaly wrong in my assumption.

on: January 23, 2023, 03:34:37 AM

Quote from: os2sam on January 23, 2023, 03:08:26 AM Quote from: tcj2001 on January 23, 2023, 02:28:07 AM So then I think its okay to set suggest-diff of 500 for compac-f and 5000 for r909, as pool will takes care of it and adjust it it accordingly. BTW i am using ckpool It will start at your suggest diff and then adjust to 18 shares per minute. It doesn't really matter what you set it to, pools will adjust it automatically. Pools also now have a minimum diff so that ASIC's won't flood them with diff1 shares. Pardon my ignorance, I have attached the screen shots of cgminer for both of these units Compac-f https://imgur.com/Da9dfnc R909 https://imgur.com/xPDxaDl I believe the WU tells the diff1 and these are very high compared to 18.

on: January 23, 2023, 02:28:07 AM

So then I think its okay to set suggest-diff of 500 for compac-f and 5000 for r909, as pool will takes care of it and adjust it it accordingly. BTW i am using ckpool

on: January 23, 2023, 01:44:08 AM

I have a compac-f getting 348.5 Gh/s and R909 getting 2.457 Th/s What suggest-diff i should use for these individually. I saw some calulation suggesting difficulty of 1 per 1 Gh/s / 1.8 and another one suggested Gh/s * (71 * .05)^2 Any suggestion?

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