OpenCL GPU miner
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Con Kolivas eea05c05b8 Update kernel with a shorter output path, and use 4k output buffer to match OS page sizes. 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 Import updated asm for cpu mining based on ufasoft assembly. 14 years ago
.gitignore
AUTHORS
COPYING
ChangeLog
LICENSE
Makefile.am Commit a new phatk kernel renamed to force new binary building and add proper support in makefiles. 14 years ago
NEWS Allow queue of zero again and make it default since we can track queued vs staged now and see if the queue needs to be bigger. 14 years ago
README Add a system status line to the formatted output. 14 years ago
arg-nonnull.h
autogen.sh
c++defs.h
compat.h Mingw suseconds_t and sigaction fixes. 14 years ago
configure.ac Bump version number. 14 years ago
elist.h
example-cfg.json
findnonce.c Make it possible to build without opencl for cpu mining only. 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 Allow queue of zero again and make it default since we can track queued vs staged now and see if the queue needs to be bigger. 14 years ago
miner.h Ensure we connect at least once successfully before continuing to try to connect. 14 years ago
mkinstalldirs
mknsis.sh
ocl.c Update kernel with a shorter output path, and use 4k output buffer to match OS page sizes. 14 years ago
ocl.h
phatk110714.cl Update kernel with a shorter output path, and use 4k output buffer to match OS page sizes. 14 years ago
poclbm.cl
sha256_4way.c
sha256_cryptopp.c
sha256_generic.c
sha256_sse2_amd64.c
sha256_via.c
util.c Revert "Change get_work to use a timeout when trying to tq_pop as a sanity failsafe in case of unusual circumstances." 14 years ago
warn-on-use.h

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 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)
DW is Discarded Work items (work from block no longer valid to work on)
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).