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README
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This is a multi-threaded CPU miner for NeoScrypt, Scrypt and SHA-256d,
fork of Jeff Garzik's reference cpuminer.
License: GPLv2. See COPYING for details.
Downloads: https://sourceforge.net/projects/cpuminer/files/
Git tree: https://github.com/pooler/cpuminer
Dependencies:
libcurl http://curl.haxx.se/libcurl/
jansson http://www.digip.org/jansson/
(jansson is included in-tree)
Basic *nix build instructions:
./autogen.sh # only needed if building from git repo
./nomacro.pl # only needed if building on Mac OS X or with Clang
./configure CFLAGS="-O2 -fomit-frame-pointer -DASM -DOPT -DMINER_4WAY -DSHA256"
make
Notes for AIX users:
* To build a 64-bit binary, export OBJECT_MODE=64
* GNU-style long options are not supported, but are accessible
via configuration file
Basic Windows build instructions, using MinGW:
Install MinGW and the MSYS Developer Tool Kit (http://www.mingw.org/)
* Make sure you have mstcpip.h in MinGW\include
If using MinGW-w64, install pthreads-w64
Install libcurl devel (http://curl.haxx.se/download.html)
* Make sure you have libcurl.m4 in MinGW\share\aclocal
* Make sure you have curl-config in MinGW\bin
In the MSYS shell, run:
./autogen.sh # only needed if building from git repo
LIBCURL="-lcurldll" ./configure CFLAGS="-O3"
make
Architecture-specific notes:
ARM: No runtime CPU detection. The miner can take advantage
of some instructions specific to ARMv5E and later processors,
but the decision whether to use them is made at compile time,
based on compiler-defined macros.
To use NEON instructions, add "-mfpu=neon" to CFLAGS.
x86: The miner checks for SSE2 instructions support at runtime,
and uses them if they are available.
x86-64: The miner can take advantage of AVX, AVX2 and XOP instructions,
but only if both the CPU and the operating system support them.
* Linux supports AVX starting from kernel version 2.6.30.
* FreeBSD supports AVX starting with 9.1-RELEASE.
* Mac OS X added AVX support in the 10.6.8 update.
* Windows supports AVX starting from Windows 7 SP1 and
Windows Server 2008 R2 SP1.
The configure script outputs a warning if the assembler
doesn't support some instruction sets. In that case, the miner
can still be built, but unavailable optimizations are left off.
Usage instructions: Run "minerd --help" to see options.
Connecting through a proxy: Use the --proxy option.
To use a SOCKS proxy, add a socks4:// or socks5:// prefix to the proxy host.
Protocols socks4a and socks5h, allowing remote name resolving, are also
available since libcurl 7.18.0.
If no protocol is specified, the proxy is assumed to be a HTTP proxy.
When the --proxy option is not used, the program honors the http_proxy
and all_proxy environment variables.
Also many issues and FAQs are covered in the forum thread
dedicated to this program,
https://bitcointalk.org/index.php?topic=55038.0