OpenCL GPU miner
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Con Kolivas 05dfc16035 Merge branch 'cgminer' into pools 14 years ago
ccan Moved pthread mutex inits up, due to applog using a mutex causing a crash. 14 years ago
compat Move to newer jansson library. 14 years ago
lib Mingw suseconds_t and sigaction fixes. 14 years ago
m4 Mingw suseconds_t and sigaction fixes. 14 years ago
x86_64 Add an sse4 algorithm to CPU mining. 14 years ago
.gitignore Rename code and application binary to cgminer version 1.0.9 preempting version 1.1.0, moving main code to main.c. 14 years ago
AUTHORS Rename code and application binary to cgminer version 1.0.9 preempting version 1.1.0, moving main code to main.c. 14 years ago
COPYING Convert over to autotools. Release version 0.1. 14 years ago
ChangeLog Convert over to autotools. Release version 0.1. 14 years ago
LICENSE Convert over to autotools. Release version 0.1. 14 years ago
Makefile.am Add an sse4 algorithm to CPU mining. 14 years ago
NEWS Update docs. 14 years ago
README Update docs. 14 years ago
arg-nonnull.h Added previously missing gnulib files. 14 years ago
autogen.sh autogen.sh fix 14 years ago
c++defs.h Added previously missing gnulib files. 14 years ago
compat.h Fix suseconds_t for OSX. 14 years ago
configure.ac Bump version to 1.2.8 14 years ago
elist.h Move all RPC I/O to separate thread. 14 years ago
example-cfg.json example-cfg.json: remove extraneous commas, which broke JSON decode 14 years ago
findnonce.c Cycling over 1026 nonces is a remnant of old code not relevant now and can just lead to repeat submission of the same block increasing rejects. 14 years ago
findnonce.h Update kernel with a shorter output path, and use 4k output buffer to match OS page sizes. 14 years ago
main.c Revert "total_queued should always be >= total_staged" 14 years ago
miner.h Abstract out the pool data to begin move to multiple pool support. 14 years ago
mkinstalldirs Build on windows using mingw32. 14 years ago
mknsis.sh Windows build tweaks. 14 years ago
ocl.c Rename the poclbm file to ensure a new binary is built since. 14 years ago
ocl.h Make it possible to build without GPU mining by picking up HAVE_OPENCL from config.h. 14 years ago
phatk110714.cl Shorten the code path in the kernel even more. 14 years ago
poclbm110717.cl Rename the poclbm file to ensure a new binary is built since. 14 years ago
sha256_4way.c Update CPU reentrant scan code to work properly for extended periods up to scantime and adjust rate properly. 14 years ago
sha256_cryptopp.c Fix CPU mining with other algorithms not working. 14 years ago
sha256_generic.c Fix CPU mining with other algorithms not working. 14 years ago
sha256_sse2_amd64.c Add an sse4 algorithm to CPU mining. 14 years ago
sha256_sse4_amd64.c Add an sse4 algorithm to CPU mining. 14 years ago
sha256_via.c Fix CPU mining with other algorithms not working. 14 years ago
util.c Some servers regularly return empty responses. Drop the message from ERR to INFO. 14 years ago
warn-on-use.h Added previously missing gnulib files. 14 years ago

README


This is a multi-threaded CPU and GPU miner for bitcoin.

License: GPLv2. See COPYING for details.

Dependencies:
libcurl http://curl.haxx.se/libcurl/
jansson http://www.digip.org/jansson/
(jansson is included in-tree and not necessary)
libncurses5-dev (or libpdcurses on WIN32)

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="-O3 -Wall -march=native" ./configure
or if you haven't installed the ati files in system locations:
CFLAGS="-O3 -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="-O3 -Wall -msse2" mingw32-configure
make
./mknsis.sh

Native WIN32 build instructions (on mingw32, on windows):
Install AMD APP sdk, latest version
(Do NOT install the ati amd sdk if you are on nvidia)
Install mingw32
Install libcurl, copy libcurl.m4 into /mingw/share/aclocal
Run:
autoreconf -fvi
CFLAGS="-O3 -Wall -msse2 -I<path to AMD APP include>" LDFLAGS="-L<path to AMD APP lib/x86>" ./configure
make

Usage instructions: Run "cgminer --help" to see options.

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.