Topic: [ANN] [SKC] Skeincoin 0.9.3.1 | Skein-SHA2 - page 57. (Read 161552 times)

I was having the same issue with 64bit, but worked once i rebuild sheinhash.so with -march=nocona or maybe try the more generic x86_64
note: i'm running intel cpu

Followed this to the letter and got this on Win 7 64 bit:

Fires up and then pop up that python.exe has stopped working.

Bat file is:

C:\python27\python.exe C:\poclbm-skc\poclbm.py http://worker.1:12345@skc.coinmine.pl:6400 -d 0

Thanks for the info and the miner!  

Then there is no reason for the miner to be 3x slower, other than being based on "older" poclbm core with less ATI optimizations?
It is missing the
VECTORS BFI_INT FASTLOOP AGGRESSION
functions that I guess speed things up more for bitcoin in cgminer?

Running at 220Mh/s on a 7970@1170MHz, which runs at 700+ for SHA256 coins.
Only one guy runs anything faster (Anonymous) at the pool, which may be 2 cards, still halfway from 600+ per card.

Are you sure its optimized? I cant compare the gpu performance but when it comes to cpu, poclbm-skc hashes around 50% slower than skeincoin-cpuminer on the same cpu. I dont have much time right now, but I can compare it tomorrow.

Maybe we can create some kind of a benchmark to see the performance of particular gpus?
In my case its:
7950 - 180MH/s
r9 280x 200MH/s
Overclocking can get you another 5-10MH/s

Edit:

Model	Freq [MHz]	Hashrate [MH/s]
Core 2 Duo T9600	2800	1.4
Intel i5 3317U	2400	1.395
Intel i7 3770k	4500	5.3
Intel HD4600	?	6
8670D (A10-6800K)	?	30
5870	?	110
5870	850	95
6930	860	93
6950	900	103
7870	880	94
7870	1150	140
7950	1100	184
7950	?	193
7970	1170	220
280x	1100	207
280x	1030	201

sleinhash.so is only used in other threads than the one that runs the kernel (does actual solutions search), so no, 64bit will not yield more performance. Skeinhash functions can even be rewritten in pure Python without losing any performance.

To confirm the facts above:
Running at 300Mhz memory frequency, same speed as 700 or 1200Mhz on a AMD 7970.
(Same as any SHA256 coin).
Others have measures >100W power savings at 300MHz compared to 1500MHz. Anyone care to confirm?


Miner is running about 3x slower than cgminer on bitcoin, on my 32 bit Python installation.
Any idea if a 64bit Python compile will boost the hashrate? (As skein is supposed to be faster at 64bit)

Tested -w 256/128 and -f 1/5/10/30 with no major speed gains on an AMD 7970.

WTS 5k

The kernel does not use VRAM at all (save for tiny bit to pass back results to miner), so yes, you can downclock it to minimum. It is optimized, though, but for GCN. Chances are that if you replace rolhack functions with rotates, arrays with variables and unroll skein rounds, it will perform better on VLIW architectures.

Finally got the miner to mine.  
Also needed the setuptools dependancy.

Files needed for mining in Windows:

https://github.com/snoopcode/poclbm-skc
Download as zip.

Python 2.7.6 32bit:
http://www.python.org/getit/

Get these in 32bit, python 2.7 format from http://www.lfd.uci.edu/~gohlke/pythonlibs/
-Ipython
-Mako
-Numpy
-pyopencl
-pytools
-setuptools

amdocl64.dll and copy to Windows/system32 or SYSWOW64 folders as amdocl.dll if using >13.12 driver (rename the original one as amdocl.new for other miners/games)
http://www.filedropper.com/amdocl64

skeinhash.so for the poclbm folder: http://www.megafileupload.com/en/file/482956/skeinhash-so.html

Thanks to madjihad for the last 2 files.
Thanks to all for the tips, hints and work on the miner.

https://github.com/mjmvisser/adl3
Download as unzip and unzip to miner folder, needed for temp monitoring and setting --cutoff-temp=90 for 79x0 cards.

Missing: 64 bit support (not needed according to "reorder")

Bat file example previously posted:
C:\python27\python.exe C:\skein\poclbm-skc\poclbm.py http://[username.worker]:[password]@skc.coinmine.pl:6400

/EDIT: Added adl3 temp monitor link, bat file example and SYSWOW64 folder.

was thinking the same thing. Did anyone have any luck with getting an exe out of python for it, might help get another pool going and attract more miners.

I also noticed skein doesnt need high memory frequency so you can decrease it almost all the way down without any performance hit. Skein miner is probably not optimized yet and thats why it needs less power i guess.

I got around to setting up the gpu miner and noticed that it's a full 100 watts less on the wall than sha/scrypt mining.

Python has sha256 bundled, but not skein hash. I suggest that somebody steps in and replaces my quickhack dll with pure python implementation from http://pythonhosted.org/pyskein/

Getting these error codes after trying Python 2.7 32 bit, all other setting as above:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

c:\skein\poclbm-skc>SKEIN_POOL1.bat

c:\skein\poclbm-skc>C:\python27\python.exe C:\skein\poclbm-skc\poclbm.py http://
worker.1:[email protected]:6400 -d 0

WARNING: no adl3 module found (github.com/mjmvisser/adl3), temperature control i
s disabled


 01/01/2014 17:11:28, started OpenCL miner on platform 0, device 0 (Tahiti)

 01/01/2014 17:11:28, Setting server (worker.1 @ skc.coinmine.pl:6400)

skc.coinmine.pl:6400 01/01/2014 17:11:28, Compiler defines:  -DOUTPUT_SIZE=256 -
DOUTPUT_MASK=255 -DENDIAN_LITTLE=1 -DGPU_AMD=1 -Ic:\skein\poclbm-skc

skc.coinmine.pl:6400 01/01/2014 17:11:28, Error loading compiled kernel: 532ed20
3a8be7d1bddcebf7c43f05f49.elf

skc.coinmine.pl:6400 01/01/2014 17:11:28, Recompiling kernel ...

skc.coinmine.pl:6400 01/01/2014 17:11:28, checking for stratum...
Exception in thread Thread-1:
Traceback (most recent call last):
  File "C:\python27\lib\threading.py", line 810, in __bootstrap_inner
    self.run()
  File "C:\python27\lib\threading.py", line 763, in run
    self.__target(*self.__args, **self.__kwargs)
  File "C:\skein\poclbm-skc\OpenCLMiner.py", line 176, in mining_thread
    self.load_kernel()
  File "C:\skein\poclbm-skc\OpenCLMiner.py", line 323, in load_kernel
    self.program = cl.Program(self.context, kernel).build(self.defines)
  File "C:\python27\lib\site-packages\pyopencl\__init__.py", line 141, in build
    options = options + ["-I", _find_pyopencl_include_path()]
  File "C:\python27\lib\site-packages\pyopencl\__init__.py", line 722, in _find_
pyopencl_include_path
    from pkg_resources import Requirement, resource_filename
ImportError: No module named pkg_resources


skc.coinmine.pl:6400 01/01/2014 17:11:28, no response to getwork, using as strat
um

skc.coinmine.pl:6400 01/01/2014 17:11:28, Setting new difficulty: 0.0625

/EDIT: Tried with numpy MKL 1.72 instead of 1.8, same error code as above.

Cannot get the GPU miner to work either, trying on Win 7 64 bit and latest AMD 13.12 driver.

Using Python 2.7 64 bit I get "WindowsError Error 21 device not ready".
Also installed: ipython, Mako, numpy 1.8 MKL, pyopencl, pytools from http://www.lfd.uci.edu/~gohlke/pythonlibs/

Using the skeinhash.so from http://www.megafileupload.com/en/file/482956/skeinhash-so.html
Thanks madjihad.

Trying Python 2.7 32 bit again, also failed but that got further than the 64 bit install.

Can't find an "amdocl64.dll" to replace, they are called "amdocl.dll" now.  

Using bat file:
C:\python27\python.exe C:\skein\poclbm-skc\poclbm.py http://worker.1:[email protected]:6400 -d 0

Why is this so frickin' more difficult than the compiled bitcoin python miner?
https://en.bitcoin.it/wiki/Poclbm

I have used the skeinhash.so but when i run it i get:

Windowserror:error126. The specified module could not be found. Even with inserting the before mentioned amdocl64.dll I keep getting this. I have inserted the file in both the system32 and syswow64 dir.

This should be correct right?

WTS 5k, pm with offer

dont judge me to hard ok.. made it in between trainrides :p

If it's for android, please send me a preview apk please.

hi guys.. perhapes my last message got lost in the gpu instructions but i would love 2 know if anyone (accept for madjihad) has an interest in an easy to check stats/updates app cause the poll http://skeincoin.wordpress.com/ had 7 votes and i got 1 suggestion from madjihad - an android wallet for Skein.. which would be awesome but would require lots of time and do we really trust the random number generator? :p

for suggestions pls pm me or post something up here.. would appreciate that