Oh yeah one more thing a few people have asked this There are some orders in the system that say confirmed even though they were not paid for, right now with our current website and the Bitpay API - it marks the order as confirmed even if you do not pay for it within the 15 min window you have to pay. But do not worry no one is going to be getting any free units. I will be going through the entire database and comparing every order with the invoices from both my payment processors - they have complete records of every payment - so every order that does not have a corresponding payment will be deleted. We will also be comparing orders against the payment processors invoices when it comes time to ship them as well to make sure everyone get's their order and no one gets a freebies  sorry! anyways I really have to go now catch me on phone bbl Seems cool, but dont forget to send a recipe to everyone who payed, so those who payed know that they will recive goods in time..  |
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I wonder what the ARM place holder is for ? how could an ARM chip benefit the board ?
Add a network jack and some ram and you'd be able to have a low power standalone miner --- maybe? Maybe one board, the one with ARM MCU soldered, will act as main controller or super controller in mining rig with all the other boards daisy chained. |
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It's either smaller than I expected or the hand model is a giant.
Based on the standard stacking connector size, de board seems to be 70x70 mm. |
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Stratum had its first crash...straight up segfault. Restarted it inside GDB to catch the cause next time it happens (if it does).
Diff was so big it bounced out of the memory..  |
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Is there any upper limit?  2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64 There is no upper limit (why should there be?). It will keep doubling the difficulty until you hit the sweet spot which is 1 share every 4-6 seconds approximately (it doubles when you exceed 1 per 3 seconds after a 5 minute evaluation, or if you're going extremely fast over a 1 minute evaluation). I think hash result is a positive/unsigned integer, if you keep divide target, depends how target is represented and what sort of inequality you use, diff wont matter anymore or no hash will pas target verification. I would have put a soft limit before that, however, considering ASIC war which will probably happen after preorders, moores law and quantum computing, we may get to the point where vardiff will mean hash result = 0, target = 0 and inequality is equality. |
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Is there any upper limit? 2012-10-15 11:00:46,516 INFO proxy client_service.handle_event # Setting new difficulty: 64 |
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My current rig could count those 4 billions in 30 ms or less. That's less than usb handshake to xfer the new payload will take in average.
... so transfer 1,000 headers with different extranonces in one handshake. Or don't handshake every time. Or modify the firmware that speaks whatever mining protocol you're sending at it to do the increment-extranonce-and-recompute-the-merkle-root-thing itself. All of this discussion is useless; even if you could convince us core developers that we need A HARD FORK RIGHT THIS VERY MINUTE! there is absolutely zero chance we could make that happen before the ASICS start shipping. So: plan accordingly. Bulk transactions are for video streaming. Anything derived from financial transactions should have every byte handshaked. Ofc, it can be done like that, but again, we are back at start, I have to overdesign chip controllers to cover extra bandwidth. BTW: I never intended to start arguing, its rather, as I said, an annoyance I wanted to talk about. |
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Its not misdesign, its trade-off. The 32 bit nonce is old design, probably it looked great when only CPUs where doing mining, but right now it looks like a bottleneck.
It doesn't not look like a bottleneck. It provides a factor of four billion in reduction in whatever serial task exists outside of that. I have yet to see any evidence that it's a bottleneck. My current rig could count those 4 billions in 30 ms or less. That's less than usb handshake to xfer the new payload will take in average. |
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He's probably just attempting to resell in Europe. The only question, as underlined by the others, is which sort of relationship does he have with BFL.
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kano is right. I did encounter this bandwidth issue, its somehow the same annoyance for hardware developers as it was diff1 and multi GHs miners network bandwidth consumption for pool operators. Unfortunately, solving hardware bandwidth issues is not as simple as a workaround in software, most of the time it requires changing design and adding extra costs.
Then don't mis-design your hardware in the first place. Seriously, if you can't do the small bit of multiplication to figure out what your bandwidth requirements will be then you _have no business making mining hardware_, operating pools, etc... Nothing suggested avoids changing design and adding costs. At best the suggestions externalize cost on future bitcoin users. Its not misdesign, its trade-off. The 32 bit nonce is old design, probably it looked great when only CPUs where doing mining, but right now it looks like a bottleneck. |
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kano is right. I did encounter this bandwidth issue, its somehow the same annoyance for hardware developers as it was diff1 and multi GHs miners network bandwidth consumption for pool operators. Unfortunately, solving hardware bandwidth issues is not as simple as a workaround in software, most of the time it requires changing design and adding extra costs.
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Hey guys. Sup?
I am totally new to the bitcoin world (2 days), I actually pretty much get everything till now but there is that thing I don't seem to be able to find anything on...
When you mine coins, what is it that you actually do? What is the data that you process? Who gives them to you?
You attempt to find a number which added to last transactions string and then hashed with sha256 will result in a number of 0. Its a computr power consuming job and it is constantly adjusted by the network to take a certain amount of time. When a block is solved, the one who solved gets 50 btc which are created from void by network agreement. |
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...
Similar to the Pirate topic regarding family contact information my investors will apply legal and cultural laws of my country to fix this situation.
...
LOL.. couldn't resist, sorry.. |
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Ghid foarte scurt si superficial pentru incepatori:Aveti nevoie de o adresa unde sa primiti bitcoin si eventual de unde sa ii trimiteti mai departe. Cea mai buna solutie este sa va inregistrati la un exchange. Recomandate sunt: mtgox.com (foarte buna interfata, localizat in Japonia, dureaza in medie o saptamana sa retrageti USD) www.bitstamp.net (interfata mai simpla, localizat in Europa, in doua zile ajung banii in cont) btc-e.com (in Rusia, se pot schimba si LTC si NMC in BTC). Odata inregistrati, generati adresa pentru a depozita Bitcoin. Spre exemplu, la bitstamp, meniul Deposit si submeniul Bitcoin o sa intoarca o adresa de genul 1BHZafCAwbjSXgrzUoEeisuNtyyf7bsUiq (aceasta este una din adresele mele). Alegeti apoi o metoda de a produce monezi. Cel mai simplu e sa incepeti cu un video card, chiar daca produce mai nimic, doar pentru a va familiariza. Faceti un test cateva zile cu PC-ul de acasa fara sa-i adaugati nimic. Alegeti un pool. Asta e o cooperativa unde sute sau mii de utilizatori lucreaza la comun si impart castigul de obicei proportional cu puterea de calcul. Sa zicem https://www.btcguild.com. Va inregistrati, folositi apoi meniul "Manage Workers", creati un worker (adaugand o extensie la username-ul cu care v-ati inregistrat. Ex. daca username e 'gigel', adaugati '1' si folositi 'Create worker'. Software-ul cu care minati o sa se conecteze la pool cu gigel_1 si parola contului.) In meniul 'My account', introduceti adresa pentru depozit in BTC de la exchange folosind 'Change BTC Wallet' (cea gen 1BHZafCAwbjSXgrzUoEeisuNtyyf7bsUiq. Nu introduceti exact 1BHZafCAwbjSXgrzUoEeisuNtyyf7bsUiq, 1BHZafCAwbjSXgrzUoEeisuNtyyf7bsUiq e adresa mea si o sa-mi trimiteti mie banii, introduceti sirul similar obtinut de la bitstamp, meniul Deposit, submeniul Bitcoin). Tot in 'My account' puteti schimba si pragul, multiplii de 0.1, peste care monezile sunt trimise catre adresa obtinuta de la exchage ('Change Auto Payout'). Cand s-a adunat o suma in BTC mai mare sau egala cu acest prag, suma e trimisa la exchange. Downloadati o aplicatie pentru minerit, de exemplu https://50btc.com/files/guiminer-20120219.exeDezarhivati, lansati guiminer, selectati din lista dropdown btc guild Germany, introduceti gigel_1 ca username si passwordul ales, apasati 'Start mining'. Cand se aduna suficiente monezi in cont (valoarea setata cu 'Change Auto Payout'), sunt trimise catre exchange. La exchange ii convertiti in USD si ii retrageti in contul de la banca din Romania. Atentie, fiecare tranzactie are o 'taxa', parca 7 sau 17 USD, deci suma retrasa trebuie sa fie mai mare decat taxa asta. La btc-guild urmariti in meniul 'My account' cum se aduna btc (un proces foarte lent cu un card video obisnuit). Anexa/precizari:'bitcoin' = 'Bitcoin' = 'monezi' = 'BTC' 'adresa' = un sir lung de litere si cifre, de ex 1BHZafCAwbjSXgrzUoEeisuNtyyf7bsUiq ( nu folositi exact adresa asta, creati-va una la un exchange), unde se pot trimite si de unde se pot trimite BTC. Ca o adresa de e-mail sau un IP. Esential necesara 'exchange' = site unde se pot schimba BTC in USD si invers. De exemplu bitstamp 'pool' = site unde se conecteaza programul de minerit 'guiminer' = program de minerit.
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Deocamdata n-are decat un roi de albine Tot roi de albine o sa fie si dupa. Pare funny, dar e design diferit de ceilalti, are avantaje si dezavantaje. |
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@beekeeper: sa inteleg ca faci hardware design? Poate facem pre-order la tine  Da, fac acum. Inca nu am un prototip in mana. |
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If I enter the 40 Ghash on a profiit calculator i would generate now about 13btc a day.
If a lot of people start using these new products, the difficulty will rise and the return will fall steeply, right?
Can anybody make an estimate or any advice/opinions..
If difficulty will increase 40x as someone said, you will do 13/40 btc per day (40 times less). |
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salut.
sunt nou in minerit si bitcoin.
as vrea sa investesc intr-un asic poate doua.
a precomandat careva asa ceva sau asteptati sa iasa pe piata?
ms.
Opinia mea este, daca nu ai order in primii 5 - 10% mai bine stai si astepti sa vezi ce se intampla. Dar asta-i opinia mea. Oricum, eu cred ca nu se poate profita pe ASIC daca nu-ti faci chipurile singur. |
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Oh, this! Proxy is working in "compatibility mode" by default, to ensure that all, even very old miners, will work with it with no issues. If you have some modern miner (cgminer, poclbm or so), you can run it with --real-target. Currently the proxy is filtering low-diff shares, so you may see different numbers in the miner and on the pool. Thanks to --real-target, your numbers in miner won't be screwed anymore.
yes, I do that: user 27107 1.6 1.3 28920 13692 ? Sl 00:42 1:06 python ./mining_proxy.py -o stratum.btcguild.com -p 9332 -rt there is no difference, still around 5% missing (I am using some custom miner): Example vardiff worker: total_unsolved_gws(superK)=4640(41.46%), total_solved_gws(superK)=6552(58.54%), (solved+unsolved)=11192 Example diff1, DE server worker: total_solved_workunits_count=30078.00
total_failed_workunits_count=16128.00
If you compute second, total_solved_workunits_count is 65% of (total_solved_workunits_count + total_failed_workunits_count) So I need a diff1 stratum connection to test if vardiff causes this difference or something else (network, etc.) |
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