[1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool

[dub0matic]

how do you set flags in cgminner? im used to using gui miner and switched from bitclockers to here

[Fiyasko]

how do you set flags in cgminner? im used to using gui miner and switched from bitclockers to here

Their pretty much, Isnt anyflags, It picks the best ones right off the bat, Go into your CGminer folder and look for a .bin file, It's name will be that of your gpu, Heres my .bin
phatk110817Bartsbitalignv2w128long4.bin

Asyou can see, It says i have a barts, And that it's using vectors2 with bandwidth at 128, And "long4" Wich i do not understand.
These .bin files are Complied when cgminer is first run, To create new .bins, just take them out of the cgminer folder

[echris1]

how do you set flags in cgminner? im used to using gui miner and switched from bitclockers to here

All of cgminer's flags are detailed here:

https://bitcointalk.org/index.php?topic=28402.0

Just keep in mind that for P2Pool it is recommended you use

-g 1     (for one thread per GPU)

and one lower intensity than usual.  I know you don't know what usual is since you just switched, but hopefully you can find recommended flags for your cards and adjust those a bit.

[DeathAndTaxes]

how do you set flags in cgminner? im used to using gui miner and switched from bitclockers to here

The easiest way is from the command line.
The more complex but fine tunning way is by config file.  Start cgminer up from command line using just -o (pool), -u (username), -p (pass) parameters.

Once cgminer loads press S for settings and then W for write config file.  You can leave it blank (it will make default named cgminer.conf).  Then open up the config file it will be set to defaults for your hardware and you can customize from there.  cgminer may make invalid config file entries for things like voltage, either delete those lines or set them to what you want.


Lots more info here:
https://raw.github.com/ckolivas/cgminer/master/README

For p2pool you want to lower intensity (I found 1 notch lower to be good start), queue = 1, and threads per gpu =1.

[dub0matic]

thanks for the help. just wondering why in guiminer i was getting 830mh/s but in cgminer i only get 750mh/s

[forrestv]

I just updated from Bitcoin 0.6.0 rc1 to rc2.
I have no idea what this error could mean:

Code:

2012-03-01 19:28:47.838000 Initializing work...
2012-03-01 19:28:47.868000 > Error:
2012-03-01 19:28:47.869000 > Traceback (most recent call last):
...
2012-03-01 19:28:47.874000 >   File "D:\forrestv-p2pool-b839ff8\p2pool\main.py", line 171, in <lambda>
2012-03-01 19:28:47.874000 >     height_cacher = deferral.DeferredCacher(defer.inlineCallbacks(lambda block_hash: defer.returnValue((yield bitcoind.rpc_getblock('%x' % (block_hash,)))['blockcount'])))
2012-03-01 19:28:47.875000 > exceptions.KeyError: 'blockcount'

With rc1 everything works fine.

There was a change in the results of the RPC "getblock" command. See https://github.com/bitcoin/bitcoin/commit/fc4f4c2e9a0f90a2fad9279f755d08b99b27796b . There's been a fix for this in P2Pool git... I'll make a release now.

[Schleicher]

There's been a fix for this in P2Pool git... I'll make a release now.

ok, thanks

[Red Emerald]

thanks for the help. just wondering why in guiminer i was getting 830mh/s but in cgminer i only get 750mh/s

Are you sure you didn't update the AMD SDK? This seems to be a pretty common thing for people to do.  The upgrade doesn't take effect until you reboot.

[DeathAndTaxes]

thanks for the help. just wondering why in guiminer i was getting 830mh/s but in cgminer i only get 750mh/s

Are you sure you didn't update the AMD SDK? This seems to be a pretty common thing for people to do.  The upgrade doesn't take effect until you reboot.

Also with caching bin files it may not take effect until you remove the pre-compiled binaries (at least that is how it works on cgminer).

[bitcool]

I am getting close to 20% stale rate, here are the poclbm options I am using:
      poclbm.exe --user xxx --pass xxx --host 192.168.1.xxx --port 9332 -v -w128 -d0
Can anyone help me on options setting  high FPS target and intensity? Thanks in advance.

[Portnoy]

I am getting close to 20% stale rate, here are the poclbm options I am using:
      poclbm.exe --user xxx --pass xxx --host 192.168.1.xxx --port 9332 -v -w128 -d0
Can anyone help me on options setting  high FPS target and intensity? Thanks in advance.

try this:
-d0 -v -w128 -f35

You may still get between 5 - 8 % stales but that is the best I have been able to do after trying different values.

[ThiagoCMC]

forrestv, are you considering acting on any of these ideas?  What are you current thoughts on this?

I've though about it quite a bit I plan to start a second P2Pool once P2Pool reaches about 400GH/s, because only then will we have enough power to make splitting into two okay. The upcoming protocol change lets new P2Pools safely be created.

Any method of dynamically creating P2Pools runs the risk of hurting miners because a pool can't simply be terminated if the hash rate lowers, since the last day of shares that were mined won't be built on top of and won't get their fair reward.

I intend to move towards the high-difficulty p2pool backbone idea eventually, but that will obviously require a lot of thought and changes.

When you split P2Pool into two, for example, 400G into two of 200G, in fact we will still @ 400G, right?!
So, the variance of a 200G pool can hurt us, poor miners... I think... lol

Thanks!
Thiago

[bitcool]

try this:
-d0 -v -w128 -f35

You may still get between 5 - 8 % stales but that is the best I have been able to do after trying different values.

Trying it... thanks!

[forrestv]

P2Pool release 0.9.2 - tag: 0.9.2 (signed with my #bitcoin-otc key, as usual)

UPGRADE TO >=0.9 REQUIRED before March 4th, upgrade to >=0.9.1 will make transition go more smoothly

Windows py2exe binary: http://u.forre.st/u/qgjloyiz/p2pool_win32_1f87c32.zip
Source tarball: https://github.com/forrestv/p2pool/tarball/0.9.2
Source zip: https://github.com/forrestv/p2pool/zipball/0.9.2

Changes:
* Fixed compatibility with Bitcoin 0.6.0 rc2 ("getblock" RPC API changed)

Persistent note: I would recommend switching to Bitcoin 0.6.0 RC 1, which includes the RPC getblock call. The getblock call lets P2Pool keep track of block heights more robustly, and so might protect you from sharechain forks. Download it from https://bitcointalk.org/index.php?topic=63165.0

[twmz]

Sent another payment.

Here is the list of transactions:

2/28/12 - http://blockchain.info/tx/7f5658c8cd2868cfc87e1ed921be74b80c06b0cb8c60b98fa709b0a23d971c31
2/29/12 - http://blockchain.info/tx/02cfe0ee7caa9342127b6c2255e22033c386bc9863da9e837e45c0e3bb7ddbca
3/1/12 - http://blockchain.info/tx/3e49a6f271ed1ebc82b39fc892e87aac3dc9481f0dc0e6a9b04d8b905b57c09c

[Diapolo]

P2Pool release 0.9.2 - tag: 0.9.2 (signed with my #bitcoin-otc key, as usual)

UPGRADE TO >=0.9 REQUIRED before March 4th, upgrade to >=0.9.1 will make transition go more smoothly

Windows py2exe binary: http://u.forre.st/u/qgjloyiz/p2pool_win32_1f87c32.zip
Source tarball: https://github.com/forrestv/p2pool/tarball/0.9.2
Source zip: https://github.com/forrestv/p2pool/zipball/0.9.2

Changes:
* Fixed compatibility with Bitcoin 0.6.0 rc2 ("getblock" RPC API changed)

Persistent note: I would recommend switching to Bitcoin 0.6.0 RC 1, which includes the RPC getblock call. The getblock call lets P2Pool keep track of block heights more robustly, and so might protect you from sharechain forks. Download it from https://bitcointalk.org/index.php?topic=63165.0

Great stuff, 0.6 RC2 now works again .

Dia

[m3ta]

P2Pool is at 300Gh+ hashrate for a long time (320G now, actually) - maybe it is time to update the topic's name.

[ChanceCoats123]

+1.

I came back to P2pool last night (as I'm certain Deepbit was stealing my hashes. The is no way 1300mhash/sec makes you .66 BTC/day. >____> )

Anyway, added 1.3ghash/sec last night. I might say I very much like the "expected time until share" and "expected time until block." Very nice additions.

[Ente]

After banging my head for hours, maybe some of you guys solved this already:

I am on Debian Squeeze, which comes with Python 2.6
I compiled and installed Python 2.7 (which went /usr/local/lib/python2.7)
Now when I install necessary packages via aptitude (like twisted, for example), it is installed for the 2.6 version.
Python --version says 2.7.2 though.
With twisted I got around this by "easy_install Twisted".

Now I still need python-rrdtool. Aptitude says its already there, for 2.6.
easy_install py_rrdtool gives errors. And I didnt find any packages which would compile by hand.

I would gladly kick python 2.6 off altogether. But am sure I will break about every part of that Debian installation with this..

Halp! I need to get the graphs running, before switching to this (lan-) central p2pool node..

tl;dr: Have Python 2.6 and 2.7 installed, cant get 2.7 modules installed.

Ente

[Red Emerald]

tl;dr: Have Python 2.6 and 2.7 installed, cant get 2.7 modules installed.

Why do you need Python 2.7? I'm running p2pool on 2 debian systems with Python 2.6 just fine.  Theres a couple depreciation warnings, but those don't hurt anything.