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CPU/GPU miner in c for bitcoin
Home Page: http://yyz.us/bitcoin/
License: Other
This project forked from ckolivas/cgminer
CPU/GPU miner in c for bitcoin
Home Page: http://yyz.us/bitcoin/
License: Other
This is a multi-threaded multi-pool CPU and GPU miner for bitcoin. License: GPLv2. See COPYING for details. Dependencies: libcurl http://curl.haxx.se/libcurl/ libncurses5-dev (or libpdcurses on WIN32) pkg-config http://www.freedesktop.org/wiki/Software/pkg-config jansson http://www.digip.org/jansson/ (jansson is included in-tree and not necessary) Basic *nix build instructions: To build with GPU mining support: Install AMD APP sdk, latest version - there is no official place to install it so just keep track of where it is if you're not installing the include files and library files into the system directory. (Do NOT install the ati amd sdk if you are on nvidia) The easiest way to install the ATI AMD SPP sdk on linux is to actually put it into a system location. Then building will be simpler. Download the correct version for either 32 bit or 64 bit from here: http://developer.amd.com/sdks/AMDAPPSDK/downloads/Pages/default.aspx This will give you a file with a name like AMD-APP-SDK-v2.4-lnx64.tgz Then: sudo su cd /opt tar xf /path/to/AMD-APP-SDK-v2.4-lnx64.tgz cd / tar xf /opt/AMD-APP-SDK-v2.4-lnx64/icd-registration.tgz ln -s /opt/AMD-APP-SDK-v2.4-lnx64/include/CL /usr/include ln -s /opt/AMD-APP-SDK-v2.4-lnx64/lib/x86_64/* /usr/lib/ ldconfig If you are on 32 bit, x86_64 in the 2nd last line should be x86 To actually build: ./autogen.sh # only needed if building from git repo CFLAGS="-O2 -Wall -march=native" ./configure or if you haven't installed the ati files in system locations: CFLAGS="-O2 -Wall -march=native -I<path to AMD APP include>" LDFLAGS="-L<path to AMD APP lib/x86_64> ./configure make If it finds the opencl files it will inform you with "OpenCL: FOUND. GPU mining support enabled." Basic WIN32 build instructions (on Fedora 13; requires mingw32): ./autogen.sh # only needed if building from git repo rm -f mingw32-config.cache MINGW32_CFLAGS="-O2 -Wall -msse2" mingw32-configure make ./mknsis.sh Native WIN32 build instructions (on mingw32, on windows): Install the Microsoft platform SDK Install AMD APP sdk, latest version (only if you want GPU mining) (Do NOT install the ati amd sdk if you are on nvidia) Install mingw32 Install libcurl, copy libcurl.m4 into /mingw/share/aclocal Install pkg-config, copy pkg.m4 into /mingw/share/aclocal Run: autoreconf -fvi CFLAGS="-O2 -msse2" ./configure make Usage instructions: Run "cgminer --help" to see options. --- EXECUTIVE SUMMARY ON USAGE: Single pool, regular desktop: cgminer -o http://pool:port -u username -p password Single pool, dedicated miner: cgminer -o http://pool:port -u username -p password -I 8 Multiple pool, dedicated miner: cgminer -o http://pool1:port -u pool1username -p pool1password -o http://pool2:port -u pool2usernmae -p pool2password -I 8 --- WHILE RUNNING: The following options are available while running with a single keypress: [P]ool management [S]ettings [D]isplay options [Q]uit P gives you: Current pool management strategy: Failover [A]dd pool [R]emove pool [D]isable pool [E]nable pool [C]hange management strategy [S]witch pool [I]nformation S gives you: [D]ynamic mode: On [L]ongpoll: On [I]ntensity: Dynamic [Q]ueue: 0 [S]cantime: 60 [R]etries: -1 [P]ause: 5 D gives you: Toggle: [D]ebug [N]ormal [S]ilent [V]erbose [R]PC debug [L]og interval [C]lear and Q quits the application. --- Also many issues and FAQs are covered in the forum thread dedicated to this program, http://forum.bitcoin.org/index.php?topic=28402.0 The output line shows the following: [(5s):204.4 (avg):203.1 Mh/s] [Q:56 A:51 R:4 HW:0 E:91% U:2.47/m] Each column is as follows: A 5 second exponentially decaying average hash rate An all time average hash rate The number of requested work items The number of accepted shares The number of rejected shares The number of hardware erorrs The efficiency defined as the accepted shares / requested work The utility defines as the number of shares / minute The cgminer status line shows: TQ: 1 ST: 1 LS: 0 SS: 0 DW: 0 NB: 1 LW: 8 LO: 1 RF: 1 I: 2 TQ is Total Queued work items. ST is STaged work items (ready to use). LS is Longpoll Staged work items (mandatory new work) SS is Stale Shares discarded (detected and not submitted so don't count as rejects) DW is Discarded Work items (work from block no longer valid to work on) NB is New Blocks detected on the network LW is Locally generated Work items (during slow server providing work) LO is Local generation Occasions (server slow to provide work) RF is Remote Fail occasions (server slow to accept work) I is current Intensity (changes in dynamic mode). NOTE: Running intensities above 9 with current hardware is likely to only diminish return performance even if the hash rate might appear better. A good starting baseline intensity to try on dedicated miners is 8. Higher values are there to cope with future improvements in hardware. FAILOVER STRATEGIES WITH MULTIPOOL: A number of different strategies for dealing with multipool setups are available. Each has their advantages and disadvantages so multiple strategies are available by user choice, as per the following list: FAILOVER: The default strategy is failover. This means that if you input a number of pools, it will try to use them as a priority list, moving away from the 1st to the 2nd, 2nd to 3rd and so on. If any of the earlier pools recover, it will move back to the higher priority ones. ROUND ROBIN: This strategy only moves from one pool to the next when the current one falls idle and makes no attempt to move otherwise. ROTATE: This strategy moves at user-defined intervals from one active pool to the next, skipping pools that are idle. LOAD BALANCE: This strategy sends work in equal amounts to all the pools specified. If any pool falls idle, the rest will take up the slack keeping the miner busy. --- LOGGING cgminer will log to stderr if it detects stderr is being redirected to a file. To enable logging simply add 2>logfile.txt to your command line and logfile.txt will contain the logged output at the log level you specify (normal, verbose, debug etc.) In other words if you would normally use: ./cgminer -o xxx -u yyy -p zzz if you use ./cgminer -o xxx -u yyy -p zzz 2>logfile.txt it will log to a file called logfile.txt and otherwise work the same. --- This code is provided entirely free of charge by the programmer in his spare time so donations would be greatly appreciated. Con Kolivas <[email protected]> 15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ
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