Topic: [1050 TH] BitMinter.com [1% PPLNS,Pays TxFees +MergedMining,Stratum,GBT,vardiff] - page 108. (Read 837175 times)

Can anyone comment on what the addition of PPS would do to other miners who stay on PPLNS?  From my understanding, I tend to prefer PPLNS - it seems more sustainable and less risk to the pool.  I'm not quite sure I understand how pools work when both payout systems are present as an option.

Whether you are mining with one 40 GH ASIC or four 10 GH ASICs doesn't matter. They do the same amount of work and find the same amounts of proofs of work. The four 10 GH ASICs will not do worse than the single 40 GH ASIC running at diff 32. The results are the same. To an outside observer everything is exactly the same. That observer can't even see if the results are produced by one or four physical devices.


Not at all. I'm just trying to get some points through to everyone. I see a lot of misunderstandings lately about worker difficulty.

There is a belief that difficulty is a useful tweak you can do to improve your hashrate. This is wrong. It's a trade-off between variance and bandwidth usage (and for mining pool servers, the amount of proofs of work they have to process). Your hashrate is the same, regardless of difficulty.

Increasing the minimum difficulty is useful to those with high hashpower to prevent the burst of proofs of work when you start out at low difficulty and the mining server in a panic trying to ramp up your difficulty quickly enough.

I think the work submits per minute with a default setting of 20 is good for most people. If you have a very slow internet connection you may want to decrease that. If you are very worried about variance you can use the Easy Mode perk to be allowed to increase it above 20. But for most people 20 is good. It gives you fairly low variance, fairly low bandwidth usage and (kind of) fairly accurate live hashrate on the website.

Getting back to multiple devices on one worker.

I have 4 blades, the server sets each to 8, when I have them all on a separate worker. If I point them all to the same worker, the server assigns 32. Granted this seems like it is fine, but if it is expecting one blade to handle a diff of 32 then it seems overkill.

I might be missing something here, and when I look at the output of bfgminer it will show "52/32" and so on for each blade but my shares per min is obviously less than if I gave each one their own worker on 8.

Basically everyone can forget setting anything at all. The server will make things work.

But if you have a high hashrate like 600 GH then you may want to set a minimum difficulty, maybe 512, to make the ride smoother right after you connect to start mining. This avoids the server having to ramp up your difficulty quickly from 4. Instead you get a good difficulty right away.

So if the server corrects with ideal diffs, then I could just ignore seting a minimum and let it settle in to that sweet spot on it's own after time, since for me when my hardware gets here will be 6 workers @ 100gh each. So I can either use one worker for the 6 identical workers at 71 or just forget setting a minimum and let them settle in on their own, assuming I didn't misunderstand what you just said.

I will get this resolved ASAP. Please use a different browser in the meantime if you have something other than Firefox installed.

Trying to connect to Bitminter site now, I get on one machine:


The other machines, also running FireFox, don't show this, but I don't dare logging in from them...

There's a website certificate issue with Firefox (works in other browsers). I'm in contact with Cloudflare.com (our content delivery network who this cert is from) to get this resolved.

The mining server looks at the hashrate per worker. So if you run a lot of hardware as the same worker but set a minimum difficulty based on the hashrate of just one of those devices, then the mining server will probably set a higher difficulty for you.

Anyway, the mining server will mostly take care of this for you. Setting a minimum diff is most useful for the first few minutes of mining so the mining server doesn't have to ramp you up from diff 4 to diff 512 in a hurry, it can start on a difficulty that makes more sense for your worker.

Def a good read, but that only helps with part of the thought.

Lets for sake of argument say I'm diving by 1.4.

If I have 100gh x 4 whicch gives 400gh and I divide by 1.4 that gives 286 if we round up. However, if we divide by the singular (100gh) we get 71 if we round down.

So the question is, regardless of if we divide, multiply but either 1.4 or 1.8 or w/e. Is it done as a whole or by the power of a single unit. Since in some cases it might be 400gh with 100 x 2 and 200 x 1.

I wana say it's a per unit basis which means diff workers.

Ex.

100gh x 4: One worker at 71 since theyre all the same

Ex. 2
100gh x 2: One worker at 71 since theyre all the same
200gh x 1: One worker at 143.

See where I'm going with this ?

I ask because, using the 100gh x 4, if we set one worker to 286, thats what each unit would try to run which seems to high where as using a diff of 71. That would seem more appropriat for a machine doing 100gh.

General advice, set your minimum difficulty to your hashrate in GH/s divided by 1.4. Some info on difficulty and work submits per minute:

https://bitcointalksearch.org/topic/m.3142713

Someone else might advice you to multiply by 1.4 or divide by 1.8 or whatever. There is no magic difficulty that you have to use. And contrary to popular belief there is no "sweet spot" difficulty that makes your mining most profitable. Worker difficulty is a trade-off between variance and bandwidth usage (and server load for Bitminter). Follow the link above and read that, especially Organofcorti's analysis, and you'll learn how it works.


No time right now. Just trying to keep things running smooth at the moment.

Working for me - Thanks

Doc, have you considered adding pps?

Yahoo appears to have fixed their OpenID service. If you use Yahoo, try logging in again now.

Website is up. Yahoo's OpenID service is malfunctioning. That's why you can't log in to add another login. That's the reason I was talking about identifying users and let them regain control of their account in another way if Yahoo doesn't hurry up.

Doc, thanks for all the fantastic service taking care of this crap.  Bitminter is the best, thanks to your constant attention!

  lol btc is more fun then FFL

It's worse than that. They've been having intermittent issues the last few weeks, and it's actually impacting their Fantasy Football leagues.

C'mon yahoo, get yer shit together!!

I was trying to find somewhere to complain at on the yahoo side, but got lost in their help system, apparently you're only allowed to have certain problems, and this ain't one of them.

Edit: Seems this might be part of a bigger problem, they have many customers unable to access mail for 24+ hours...