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481  Alternate cryptocurrencies / Altcoin Discussion / Re: CoinChoose - alternative site to show respective profitability of the alt coins on: May 15, 2013, 01:51:27 PM
Block: 00ecb8669cd08eda...  Diff:11.2M  Started: [16:49:43]  Best share: 70.2K

It's also listed in the "coin" API call reply.

For scrypt, cgminer does a conversion by multiplying all difficulties with 2**16. That's why those values might not look right.
482  Alternate cryptocurrencies / Altcoin Discussion / Re: CoinChoose - alternative site to show respective profitability of the alt coins on: May 15, 2013, 12:16:21 PM
The difficulty reported by terracoind (which I guess is what cryptocoinexplorer uses) is not for the next block to be generated, but for the last one already generated. AFAIK only cgminer/bfgminer show what the current difficulty is. That difference doesn't matter much with bitcoind, but with terracoind the reported difficulty is very often lagging behind since it changes so often. Not really relevant to CoinChoose since you are smoothing the graph anyway, but for someone setting up a hopping script, this is a way to optimize it.
483  Alternate cryptocurrencies / Altcoin Discussion / Re: CoinChoose - alternative site to show respective profitability of the alt coins on: May 13, 2013, 01:10:10 PM
Is YAC a useful coin to have here? It's not a usual Scrypt coin, so it can't be directly compared to any other coin, is my understanding. The only way to mine it is to CPU mine (currently) so you can do it in addition to any other coin you're mining.

On second thought - until there is a GPU way to mine it that is comparable, it does not belong here (or there is a easily mathematical way to figure out the block reward which it seems like there is not).  I am removing it for now.

Good decision. It was making the other graphs hard to read Smiley
484  Other / Meta / Re: Enhancing the security of this forum by integrating two factor authentication. on: May 13, 2013, 10:12:52 AM
Yes, please add 2FA! But how would OpenID be connected to that? I'm usually just annoyed by sites that want to rely on OpenID or Google accounts and not have their own account credentials. Separate credentials + 2FA for each site is much better and simpler IMO.

If we used OpenID as a 2FA method, it would be separate from Google Authenticator.

What's the problem with using Google Authenticator? It has nothing to do with Google accounts, and is very easy to implement. I even added it to my own ssh server.
485  Economy / Exchanges / Re: www.BITSTAMP.net Bitcoin exchange site for USD/BTC on: May 12, 2013, 12:47:18 AM
Is anyone else getting a broken graph on the front page, with the bottom being -50 USD? I don't think we'll ever go that low, so why not hardcode the bottom to zero instead? The price does look more stable now, though, so maybe the negative bottom is intentional Grin
486  Bitcoin / Pools / Re: [1.5 TH/s] Bitparking Pool, DGM 1.5%,pays orphans,vardiff,stratum,Merge Mining on: May 11, 2013, 11:12:16 PM
Judging from the latest posts, it looks like forum messages are sometimes almost as hard to correctly understand as payment methods.  Grin
487  Bitcoin / Mining software (miners) / Re: CGMINER ASIC FPGA GPU overc monit fanspd RPC linux/win/osx/mip/r-pi 3.1.1 on: May 11, 2013, 11:08:22 PM
please make GBT configurable and turned off by default... nobody needs that!

I guess it would be possible to drop the libcurl requirement if both getwork and GBT could be disabled, right?
488  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN] New crypto currency ZIM coin on: May 11, 2013, 11:05:07 PM
I'm sure you premined at least a couple trillion! SCAM ALERT!
489  Bitcoin / Pools / Re: BitMinter audit (or: PPLNS vs PPS) on: May 11, 2013, 10:34:13 PM
Vircurex was the only place to trade those coins AFAIK. IXC was added back after the initial decision to remove it, but maybe only the removal was announced on twitter?

Vircurex is now up and trading continues with both DVC & IXC. DrHaribo, please save us profit-seekers from DGM! I would much rather mine on a PPLNS pool.
490  Alternate cryptocurrencies / Altcoin Discussion / Re: CoinChoose - alternative site to show respective profitability of the alt coins on: May 11, 2013, 09:58:37 PM
I think CoinChoose is trying to a show a readable chart on what the profit levels would be if someone mined TRC exclusively. The more profitable way to mine TRC is to hop the chain when difficulty falls below some threshold level. I'm currently hopping TRC with a custom script, my rigs are running two instances of cgminer and the script constantly decides on which instance the GPUs are enabled. USB devices might not work with this scheme, though.
491  Other / Meta / Re: Enhancing the security of this forum by integrating two factor authentication. on: May 11, 2013, 06:22:11 PM
Yes, please add 2FA! But how would OpenID be connected to that? I'm usually just annoyed by sites that want to rely on OpenID or Google accounts and not have their own account credentials. Separate credentials + 2FA for each site is much better and simpler IMO.
492  Bitcoin / Pools / Re: [1.5 TH/s] Bitparking Pool, DGM 1.5%,pays orphans,vardiff,stratum,Merge Mining on: May 11, 2013, 05:57:22 PM
I'll register a new account when the current block finishes. If I understood DGM well enough, I could lose more BTC abandoning the current round than I have in altcoins...

I'm under the impression that you should have no reason to think like that. In a fair payout method, all shares should have the same expected payout, and not depend on history at all. With DGM (and most other methods as well), the actual payout per share will have lots of variance, but it should average out after a long enough time, even over multiple accounts that are mining only occasionally.

DGM is really hard to understand, and unlike with PPLNS, I still haven't grasped it well enough to be 100% sure of the above. However, it would be a very lousy payout method if miners were forced to stay on the pool to not lose their expected payouts.

as I understand it abandoning a round at any other time then "very near the start" could infact drastically reduce your payout. Which is why I've argued so much about the switch. I'm off mmpool (for good I think) finally as a result of vircurex going down I don't really feel like recreating another dozen worker accounts to reset addresses.


I would really like to hear some proof that DGM indeed works that way. I don't feel 100% confident that it's fair in that case, but haven't seen any real proof that it's not, either. It might definitely feel like you are losing expected payout when abandoning a round, but unless you have proof that DGM works that way, I'm more inclined to believe that the opinion is just based on a misunderstanding.

The huge failure of DGM is that it's almost impossible to understand (I mean really understand, not just on the "capacitor is being charged" -level Smiley) if you aren't a hardcore mathematician. I'm far from that level myself, and thus Bitparking doesn't feel as attractive anymore. Then again, even if you can understand a pool's payout method, it's another thing whether they have implemented it properly...
493  Bitcoin / Pools / Re: BitMinter audit (or: PPLNS vs PPS) on: May 11, 2013, 05:15:51 PM
Vircurex was the only place to trade those coins AFAIK. IXC was added back after the initial decision to remove it, but maybe only the removal was announced on twitter?
494  Bitcoin / Pools / Re: [1.5 TH/s] Bitparking Pool, DGM 1.5%,pays orphans,vardiff,stratum,Merge Mining on: May 11, 2013, 01:01:26 AM
I'll register a new account when the current block finishes. If I understood DGM well enough, I could lose more BTC abandoning the current round than I have in altcoins...

I'm under the impression that you should have no reason to think like that. In a fair payout method, all shares should have the same expected payout, and not depend on history at all. With DGM (and most other methods as well), the actual payout per share will have lots of variance, but it should average out after a long enough time, even over multiple accounts that are mining only occasionally.

DGM is really hard to understand, and unlike with PPLNS, I still haven't grasped it well enough to be 100% sure of the above. However, it would be a very lousy payout method if miners were forced to stay on the pool to not lose their expected payouts.
495  Bitcoin / Pools / Re: BitMinter audit (or: PPLNS vs PPS) on: May 11, 2013, 12:42:23 AM
Now, if you just added DVC & IXC merged mining, Bitparking miners couldn't claim that they are earning more than Bitminter miners.

Of course, throwing 12TH/s at those chains would disrupt the status quo a bit.
496  Alternate cryptocurrencies / Altcoin Discussion / Re: YACoin - cpuminer released. Very soon pools will be availaible for this coin on: May 09, 2013, 03:00:52 PM
great Smiley

[2013-05-09 16:57:06] thread 0: 49344 hashes, 9.86 khash/s
[2013-05-09 16:57:06] thread 1: 49404 hashes, 9.86 khash/s
[2013-05-09 16:57:06] thread 2: 48432 hashes, 9.66 khash/s
[2013-05-09 16:57:06] thread 3: 49200 hashes, 9.84 khash/s

getting on 3570k @stock ubuntu server 13x64

on windows7x64 i got about 60% hashrate above

That's quite low. I'm getting almost 50kh/s per thread with an i5-3570.
497  Alternate cryptocurrencies / Altcoin Discussion / Re: [CLOSED] 2000 YAC bounty for adapting minerd for YAC on: May 09, 2013, 02:21:53 PM
It's working, but I'm getting less than half of what's produced by the linux version. 25kh/s vs. 60kh/s per thread on a 2500K. And I'm actually running the linux version with VirtualBox, so it might be even faster when run natively.

EDIT: This post might be relevant to the speed difference: https://bitcointalk.org/index.php?topic=196196.msg2082435#msg2082435
498  Alternate cryptocurrencies / Altcoin Discussion / Re: [CLOSED] 2000 YAC bounty for adapting minerd for YAC on: May 09, 2013, 02:12:35 PM
C:\Users\USERUSER\AppData\Local\Temp\cc4kfJms.s: Assembler messages:
C:\Users\USERUSER\AppData\Local\Temp\cc4kfJms.s:25: Warning: .type pseudo-op use
d outside of .def/.endef ignored.
C:\Users\USERUSER\AppData\Local\Temp\cc4kfJms.s:25: Error: junk at end of line,
first unrecognized character is `h'

See my fix:

I have to go to bed, but if anyone wants to get a step closer to compiling it on windows, replace line 173 in ./code/scrypt-jane-portable-x86.h with

Code:
#define asm_naked_fn_end(fn) ".att_syntax prefix;\n.def " #fn "; .scl 2; .type 32; .size .-" #fn "; .endef \n"  );	

The new error complains about _has_cpuid@0 not being defined (in minerd-scrypt-jane.o, after compiling to asm).

EDIT: I have managed to compile it! Here is a link for all you windows users Cheesy
cpuminer-scrypt-jane-win32.zip

If this helped you and you want to donate, please send to any in my sig or YMKPwfHMR72cjw21aBJjLvq3LDfRb7AZ1b Smiley. I really appreciate it.

How did you manage to compile it without errors? That might be useful information in case of future problems.
499  Bitcoin / Mining software (miners) / Re: CGMINER ASIC FPGA GPU overc monit fanspd RPC linux/win/osx/mip/r-pi 3.1.0 on: May 09, 2013, 12:37:22 AM
Good to know, I guess I shouldn't expect every commit to work perfectly in marginal cases like cross-compiling.

EDIT: I saw some new commits and tried again. Now it works.
500  Bitcoin / Mining software (miners) / Re: CGMINER ASIC FPGA GPU overc monit fanspd RPC linux/win/osx/mip/r-pi 3.1.0 on: May 09, 2013, 12:31:25 AM
My cross-compiling setup suddenly fails on the newest git master version. I get multiple errors about sys/socket.h not being found. I traced the problem back to commit 31aa4f6cebc51e26b349606fd78d71954bda87da. Commit 657e64477b75603bc9b08eed425bc47f606814cb and everything before that compiles correctly. Is there a new dependency that I'm now missing, or is this a bug? The only sys/socket.h I have (/usr/include/x86_64-linux-gnu/sys/socket.h) is not under my mingw toolchain, but that wasn't a problem when cross-compiling until now. For reference, here are the files in my toolchain: http://pastebin.com/sSEqFL63
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